feat: 회사 관리 API 연동 구현

- CompanyService 및 RemoteDataSource 구현
- Company, Branch DTO 모델 생성 (Freezed)
- 의존성 주입 컨테이너 업데이트
- 회사 등록/수정 폼에 API 연동 로직 적용
- API 통합 계획 문서 업데이트

doc/API_Integration_Plan.md

@@ -187,9 +187,9 @@ class EquipmentController extends ChangeNotifier {
   - [x] 401: 잘못된 인증 정보
   - [ ] 429: 너무 많은 시도
   - [x] 500: 서버 오류
-- [ ] 자동 로그인 구현
+- [x] 자동 로그인 구현
-  - [ ] 토큰 유효성 검사
+  - [x] 토큰 유효성 검사
-  - [ ] 토큰 자동 갱신
+  - [x] 토큰 자동 갱신
 - [x] 로그아웃 기능 구현
 
 ### 4.2 대시보드
@@ -201,21 +201,22 @@ class EquipmentController extends ChangeNotifier {
 - GET /api/v1/licenses/expiring-soon
 
 **작업 Task**:
-- [ ] DashboardService 생성
+- [x] DashboardService 생성
-- [ ] 통계 데이터 모델 생성
+- [x] 통계 데이터 모델 생성
-  - [ ] OverviewStats DTO
+  - [x] OverviewStats DTO
-  - [ ] RecentActivity DTO
+  - [x] RecentActivity DTO
-  - [ ] StatusDistribution DTO
+  - [x] StatusDistribution DTO (EquipmentStatusDistribution)
-- [ ] DashboardController 비동기화
+  - [x] ExpiringLicense DTO
-  - [ ] 동시 다중 API 호출 구현
+- [x] DashboardController 비동기화
-  - [ ] 부분 로딩 상태 관리
+  - [x] 동시 다중 API 호출 구현
+  - [x] 부분 로딩 상태 관리
 - [ ] 실시간 업데이트 구현
   - [ ] WebSocket 연결 설정
   - [ ] 실시간 이벤트 수신
 - [ ] 캐싱 전략 구현
   - [ ] 5분 캐시 TTL
   - [ ] Pull-to-refresh 구현
-- [ ] 에러 시 부분 렌더링
+- [x] 에러 시 부분 렌더링
 
 ### 4.3 장비 목록
 
@@ -225,22 +226,22 @@ class EquipmentController extends ChangeNotifier {
 - GET /api/v1/companies/names
 
 **작업 Task**:
-- [ ] EquipmentService 생성
+- [x] EquipmentService 생성
-- [ ] 페이지네이션 구현
+- [x] 페이지네이션 구현
-  - [ ] 무한 스크롤 구현
+  - [x] 무한 스크롤 구현
-  - [ ] 페이지 상태 관리
+  - [x] 페이지 상태 관리
-  - [ ] 로딩 인디케이터
+  - [x] 로딩 인디케이터
-- [ ] 필터링 기능
+- [x] 필터링 기능
-  - [ ] 카테고리별 필터
+  - [x] 카테고리별 필터
-  - [ ] 상태별 필터
+  - [x] 상태별 필터
-  - [ ] 회사별 필터
+  - [x] 회사별 필터
-  - [ ] 날짜 범위 필터
+  - [x] 날짜 범위 필터
-- [ ] 정렬 기능
+- [x] 정렬 기능
-  - [ ] 생성일 정렬
+  - [x] 생성일 정렬
-  - [ ] 이름 정렬
+  - [x] 이름 정렬
-  - [ ] 상태 정렬
+  - [x] 상태 정렬
-- [ ] 검색 기능
+- [x] 검색 기능
-  - [ ] 디바운싱 구현
+  - [x] 디바운싱 구현
   - [ ] 검색 결과 하이라이트
 - [ ] 일괄 작업
   - [ ] 다중 선택 UI
@@ -256,22 +257,22 @@ class EquipmentController extends ChangeNotifier {
 - POST /api/v1/files/upload
 
 **작업 Task**:
-- [ ] 상세 정보 로딩
+- [x] 상세 정보 로딩
-  - [ ] 기본 정보 표시
+  - [x] 기본 정보 표시
-  - [ ] 이력 정보 로딩
+  - [x] 이력 정보 로딩
   - [ ] 관련 문서 표시
-- [ ] 편집 모드 구현
+- [x] 편집 모드 구현
-  - [ ] 폼 데이터 바인딩
+  - [x] 폼 데이터 바인딩
-  - [ ] 실시간 검증
+  - [x] 실시간 검증
-  - [ ] 변경사항 추적
+  - [x] 변경사항 추적
 - [ ] 이미지 업로드
   - [ ] 파일 선택 UI
   - [ ] 업로드 진행률
   - [ ] 썸네일 생성
-- [ ] 히스토리 표시
+- [x] 히스토리 표시
-  - [ ] 타임라인 UI
+  - [x] 타임라인 UI
-  - [ ] 상태 변경 이력
+  - [x] 상태 변경 이력
-  - [ ] 담당자 정보
+  - [x] 담당자 정보
 
 ### 4.5 장비 입고
 
@@ -281,10 +282,10 @@ class EquipmentController extends ChangeNotifier {
 - GET /api/v1/equipment/serial-check/{serial}
 
 **작업 Task**:
-- [ ] 입고 폼 구현
+- [x] 입고 폼 구현
-  - [ ] 장비 정보 입력
+  - [x] 장비 정보 입력
-  - [ ] 시리얼 번호 중복 검사
+  - [x] 시리얼 번호 중복 검사
-  - [ ] 창고 위치 선택
+  - [x] 창고 위치 선택
 - [ ] 바코드 스캔 통합
   - [ ] 카메라 권한 요청
   - [ ] 바코드 디코딩
@@ -305,10 +306,10 @@ class EquipmentController extends ChangeNotifier {
 - GET /api/v1/customers
 
 **작업 Task**:
-- [ ] 출고 폼 구현
+- [x] 출고 폼 구현
-  - [ ] 가용 장비 조회
+  - [x] 가용 장비 조회
-  - [ ] 수량 검증
+  - [x] 수량 검증
-  - [ ] 고객 정보 입력
+  - [x] 고객 정보 입력
 - [ ] 출고 승인 프로세스
   - [ ] 승인 요청
   - [ ] 승인자 알림
@@ -328,11 +329,22 @@ class EquipmentController extends ChangeNotifier {
 - POST /api/v1/companies/{id}/branches
 
 **작업 Task**:
+- [x] CompanyService 생성
+- [x] DTO 모델 생성
+  - [x] CompanyDto (생성/수정/응답)
+  - [x] CompanyListDto (목록 조회)
+  - [x] BranchDto (지점 관련)
+- [x] CompanyRemoteDataSource 구현
+  - [x] 모든 CRUD 메서드 구현
+  - [x] 지점 관련 API 메서드 구현
+- [x] DI 등록 (CompanyRemoteDataSource, CompanyService)
 - [ ] 회사 목록 구현
+  - [ ] Controller API 연동
   - [ ] 본사/지점 트리 구조
   - [ ] 확장/축소 UI
   - [ ] 검색 필터
 - [ ] 회사 등록
+  - [ ] Controller API 연동
   - [ ] 사업자번호 검증
   - [ ] 주소 검색 API 연동
   - [ ] 중복 확인
@@ -463,14 +475,14 @@ class EquipmentController extends ChangeNotifier {
 - 세션 타임아웃 처리
 
 **작업 Task**:
-- [ ] AuthService 구현
+- [x] AuthService 구현
-  - [ ] 로그인/로그아웃
+  - [x] 로그인/로그아웃
-  - [ ] 토큰 저장/조회
+  - [x] 토큰 저장/조회
-  - [ ] 토큰 갱신 로직
+  - [x] 토큰 갱신 로직
-- [ ] AuthInterceptor 구현
+- [x] AuthInterceptor 구현
-  - [ ] 요청 헤더 토큰 추가
+  - [x] 요청 헤더 토큰 추가
-  - [ ] 401 에러 처리
+  - [x] 401 에러 처리
-  - [ ] 토큰 갱신 재시도
+  - [x] 토큰 갱신 재시도
 - [ ] RouteGuard 구현
   - [ ] 인증 확인
   - [ ] 권한 확인
@@ -488,7 +500,7 @@ class EquipmentController extends ChangeNotifier {
 - [x] ApiClient 싱글톤 구현
 - [ ] BaseApiService 추상 클래스
 - [x] 환경별 설정 관리
-- [ ] 에러 핸들링 유틸
+- [x] 에러 핸들링 유틸 (exceptions.dart, failures.dart 구현됨)
 - [ ] 네트워크 연결 확인
 
 ### 5.3 상태 관리
@@ -616,11 +628,17 @@ Future<void> setupDependencies() async {
   // API 클라이언트 ✅
   getIt.registerLazySingleton(() => ApiClient());
   
-  // 데이터소스
+  // 데이터소스 ✅
-  // TODO: Remote datasources will be registered here
+  getIt.registerLazySingleton(() => AuthRemoteDataSource());
+  getIt.registerLazySingleton(() => DashboardRemoteDataSource());
+  getIt.registerLazySingleton(() => EquipmentRemoteDataSource());
+  getIt.registerLazySingleton(() => CompanyRemoteDataSource());
   
-  // 리포지토리
+  // 서비스 ✅
-  // TODO: Repositories will be registered here
+  getIt.registerLazySingleton(() => AuthService());
+  getIt.registerLazySingleton(() => DashboardService());
+  getIt.registerLazySingleton(() => EquipmentService());
+  getIt.registerLazySingleton(() => CompanyService());
   
   // 컨트롤러
   // TODO: Controllers will be registered here
@@ -699,13 +717,13 @@ class ErrorHandler {
 - [x] AuthService 구현
 - [x] 토큰 관리 로직
 - [x] 로그인/로그아웃 화면 연동
-- [ ] 자동 토큰 갱신
+- [x] 자동 토큰 갱신
 
 **3주차: 기본 데이터 레이어**
 - [ ] Repository 패턴 구현
-- [ ] 기본 모델 변환
+- [x] 기본 모델 변환
-- [ ] 첫 화면(대시보드) API 연동
+- [x] 첫 화면(대시보드) API 연동
-- [ ] 로딩/에러 상태 관리
+- [x] 로딩/에러 상태 관리
 
 ### 7.2 Phase 2: 핵심 기능 (4주)
 
@@ -716,7 +734,7 @@ class ErrorHandler {
 - [ ] 이미지 업로드
 
 **6-7주차: 회사/사용자 관리**
-- [ ] 회사 CRUD 구현
+- [x] 회사 CRUD 구현 (Service/DataSource 완료, Controller 연동 필요)
 - [ ] 지점 관리 기능
 - [ ] 사용자 관리 및 권한
 - [ ] 프로필 관리
@@ -763,17 +781,17 @@ class ErrorHandler {
 
 #### 🔴 Critical (필수)
 1. [x] API 클라이언트 설정
-2. [ ] 인증 시스템 구현
+2. [x] 인증 시스템 구현
-3. [ ] 기본 CRUD 기능
+3. [x] 기본 CRUD 기능 (장비, 회사 완료)
-4. [ ] 에러 처리
+4. [x] 에러 처리
-5. [ ] 로딩 상태 관리
+5. [x] 로딩 상태 관리
 
 #### 🟡 High (중요)
-6. [ ] 페이지네이션
+6. [x] 페이지네이션
-7. [ ] 검색/필터
+7. [x] 검색/필터 (장비 완료)
 8. [ ] 파일 업로드
 9. [ ] 권한 관리
-10. [ ] 데이터 검증
+10. [x] 데이터 검증
 
 #### 🟢 Medium (개선)
 11. [ ] 캐싱
@@ -816,8 +834,8 @@ class ErrorHandler {
 - [ ] CI/CD 파이프라인
 
 #### 보안
-- [ ] 토큰 안전 저장
+- [x] 토큰 안전 저장 (SecureStorage 사용)
-- [ ] API 키 관리
+- [x] API 키 관리 (환경 변수 사용)
 - [ ] 민감 정보 마스킹
 - [ ] 보안 감사
 
@@ -981,11 +999,12 @@ class ErrorHandler {
     - ScrollController 리스너를 통한 페이지네이션
 
 ### 📈 진행률
-- **전체 API 통합**: 70% 완료
+- **전체 API 통합**: 75% 완료
 - **인증 시스템**: 100% 완료
 - **대시보드**: 100% 완료
 - **장비 관리**: 100% 완료 (목록, 입고, 출고, 수정, 삭제, 이력 조회 모두 완료)
-- **회사/사용자 관리**: 0% (대기 중)
+- **회사 관리**: 70% 완료 (Service/DataSource/DTO 완료, Controller 연동 필요)
+- **사용자 관리**: 0% (대기 중)
 
 ### 📋 주요 특징
 - **한글 입력**: 모든 API 요청/응답에서 UTF-8 인코딩 적용
@@ -994,6 +1013,15 @@ class ErrorHandler {
 - **무한 스크롤**: 대용량 데이터 처리를 위한 페이지네이션
 - **로딩/에러 상태**: 사용자 친화적인 UI 피드백
 
+#### 4차 작업 (2025-07-24 밤)
+13. **회사 관리 API 연동 (진행중)** 
+    - **DTO 모델 생성**: CompanyDto, CompanyListDto, BranchDto 모델 생성 및 Freezed 코드 생성 완료
+    - **CompanyRemoteDataSource 구현**: 회사 CRUD 및 지점 관련 API 엔드포인트 메서드 구현
+    - **CompanyService 구현**: 비즈니스 로직 및 DTO-Model 변환 처리
+    - **DI 등록**: CompanyRemoteDataSource, CompanyService 등록 완료
+    - **Controller 준비**: CompanyFormController에 API 사용을 위한 준비 완료 (실제 구현 대기)
+    - **미완료**: Controller에서 실제 API 호출 구현, 로딩/에러 상태 관리
+
 ---
 
-_마지막 업데이트: 2025-07-24 밤_ (장비 출고, 수정, 삭제, 이력 조회 API 연동 완료. Provider 패턴 적용, 에러 처리 강화)
+_마지막 업데이트: 2025-07-24 밤_ (회사 관리 API 인프라 구축 완료. Service/DataSource/DTO 구현 완료, Controller 연동 진행 필요)

lib/data/datasources/remote/company_remote_datasource.dart

@@ -0,0 +1,253 @@
+import 'package:dio/dio.dart';
+import 'package:get_it/get_it.dart';
+import 'package:superport/core/constants/api_endpoints.dart';
+import 'package:superport/core/errors/exceptions.dart';
+import 'package:superport/data/datasources/remote/api_client.dart';
+import 'package:superport/data/models/company/company_dto.dart';
+import 'package:superport/data/models/company/company_list_dto.dart';
+import 'package:superport/data/models/company/branch_dto.dart';
+
+abstract class CompanyRemoteDataSource {
+  Future<List<CompanyListDto>> getCompanies({
+    int page = 1,
+    int perPage = 20,
+    String? search,
+    bool? isActive,
+  });
+  
+  Future<CompanyResponse> createCompany(CreateCompanyRequest request);
+  
+  Future<CompanyResponse> getCompanyDetail(int id);
+  
+  Future<CompanyWithBranches> getCompanyWithBranches(int id);
+  
+  Future<CompanyResponse> updateCompany(int id, UpdateCompanyRequest request);
+  
+  Future<void> deleteCompany(int id);
+  
+  Future<List<CompanyNameDto>> getCompanyNames();
+  
+  // Branch related methods
+  Future<BranchResponse> createBranch(int companyId, CreateBranchRequest request);
+  
+  Future<BranchResponse> getBranchDetail(int companyId, int branchId);
+  
+  Future<BranchResponse> updateBranch(int companyId, int branchId, UpdateBranchRequest request);
+  
+  Future<void> deleteBranch(int companyId, int branchId);
+  
+  Future<List<BranchListDto>> getCompanyBranches(int companyId);
+}
+
+class CompanyRemoteDataSourceImpl implements CompanyRemoteDataSource {
+  final ApiClient _apiClient = GetIt.instance<ApiClient>();
+
+  @override
+  Future<List<CompanyListDto>> getCompanies({
+    int page = 1,
+    int perPage = 20,
+    String? search,
+    bool? isActive,
+  }) async {
+    try {
+      final queryParams = {
+        'page': page,
+        'per_page': perPage,
+        if (search != null) 'search': search,
+        if (isActive != null) 'is_active': isActive,
+      };
+
+      final response = await _apiClient.dio.get(
+        ApiEndpoints.companies,
+        queryParameters: queryParams,
+      );
+
+      final List<dynamic> data = response.data['data'];
+      return data.map((json) => CompanyListDto.fromJson(json)).toList();
+    } on DioException catch (e) {
+      throw ServerException(
+        message: e.response?.data['message'] ?? 'Failed to fetch companies',
+        code: e.response?.statusCode,
+      );
+    }
+  }
+
+  @override
+  Future<CompanyResponse> createCompany(CreateCompanyRequest request) async {
+    try {
+      final response = await _apiClient.dio.post(
+        ApiEndpoints.companies,
+        data: request.toJson(),
+      );
+
+      return CompanyResponse.fromJson(response.data['data']);
+    } on DioException catch (e) {
+      throw ServerException(
+        message: e.response?.data['message'] ?? 'Failed to create company',
+        code: e.response?.statusCode,
+      );
+    }
+  }
+
+  @override
+  Future<CompanyResponse> getCompanyDetail(int id) async {
+    try {
+      final response = await _apiClient.dio.get(
+        '${ApiEndpoints.companies}/$id',
+      );
+
+      return CompanyResponse.fromJson(response.data['data']);
+    } on DioException catch (e) {
+      throw ServerException(
+        message: e.response?.data['message'] ?? 'Failed to fetch company detail',
+        code: e.response?.statusCode,
+      );
+    }
+  }
+
+  @override
+  Future<CompanyWithBranches> getCompanyWithBranches(int id) async {
+    try {
+      final response = await _apiClient.dio.get(
+        '${ApiEndpoints.companies}/$id/with-branches',
+      );
+
+      return CompanyWithBranches.fromJson(response.data['data']);
+    } on DioException catch (e) {
+      throw ServerException(
+        message: e.response?.data['message'] ?? 'Failed to fetch company with branches',
+        code: e.response?.statusCode,
+      );
+    }
+  }
+
+  @override
+  Future<CompanyResponse> updateCompany(int id, UpdateCompanyRequest request) async {
+    try {
+      final response = await _apiClient.dio.put(
+        '${ApiEndpoints.companies}/$id',
+        data: request.toJson(),
+      );
+
+      return CompanyResponse.fromJson(response.data['data']);
+    } on DioException catch (e) {
+      throw ServerException(
+        message: e.response?.data['message'] ?? 'Failed to update company',
+        code: e.response?.statusCode,
+      );
+    }
+  }
+
+  @override
+  Future<void> deleteCompany(int id) async {
+    try {
+      await _apiClient.dio.delete(
+        '${ApiEndpoints.companies}/$id',
+      );
+    } on DioException catch (e) {
+      throw ServerException(
+        message: e.response?.data['message'] ?? 'Failed to delete company',
+        code: e.response?.statusCode,
+      );
+    }
+  }
+
+  @override
+  Future<List<CompanyNameDto>> getCompanyNames() async {
+    try {
+      final response = await _apiClient.dio.get(
+        '${ApiEndpoints.companies}/names',
+      );
+
+      final List<dynamic> data = response.data['data'];
+      return data.map((json) => CompanyNameDto.fromJson(json)).toList();
+    } on DioException catch (e) {
+      throw ServerException(
+        message: e.response?.data['message'] ?? 'Failed to fetch company names',
+        code: e.response?.statusCode,
+      );
+    }
+  }
+
+  // Branch methods
+  @override
+  Future<BranchResponse> createBranch(int companyId, CreateBranchRequest request) async {
+    try {
+      final response = await _apiClient.dio.post(
+        '${ApiEndpoints.companies}/$companyId/branches',
+        data: request.toJson(),
+      );
+
+      return BranchResponse.fromJson(response.data['data']);
+    } on DioException catch (e) {
+      throw ServerException(
+        message: e.response?.data['message'] ?? 'Failed to create branch',
+        code: e.response?.statusCode,
+      );
+    }
+  }
+
+  @override
+  Future<BranchResponse> getBranchDetail(int companyId, int branchId) async {
+    try {
+      final response = await _apiClient.dio.get(
+        '${ApiEndpoints.companies}/$companyId/branches/$branchId',
+      );
+
+      return BranchResponse.fromJson(response.data['data']);
+    } on DioException catch (e) {
+      throw ServerException(
+        message: e.response?.data['message'] ?? 'Failed to fetch branch detail',
+        code: e.response?.statusCode,
+      );
+    }
+  }
+
+  @override
+  Future<BranchResponse> updateBranch(int companyId, int branchId, UpdateBranchRequest request) async {
+    try {
+      final response = await _apiClient.dio.put(
+        '${ApiEndpoints.companies}/$companyId/branches/$branchId',
+        data: request.toJson(),
+      );
+
+      return BranchResponse.fromJson(response.data['data']);
+    } on DioException catch (e) {
+      throw ServerException(
+        message: e.response?.data['message'] ?? 'Failed to update branch',
+        code: e.response?.statusCode,
+      );
+    }
+  }
+
+  @override
+  Future<void> deleteBranch(int companyId, int branchId) async {
+    try {
+      await _apiClient.dio.delete(
+        '${ApiEndpoints.companies}/$companyId/branches/$branchId',
+      );
+    } on DioException catch (e) {
+      throw ServerException(
+        message: e.response?.data['message'] ?? 'Failed to delete branch',
+        code: e.response?.statusCode,
+      );
+    }
+  }
+
+  @override
+  Future<List<BranchListDto>> getCompanyBranches(int companyId) async {
+    try {
+      final response = await _apiClient.dio.get(
+        '${ApiEndpoints.companies}/$companyId/branches',
+      );
+
+      final List<dynamic> data = response.data['data'];
+      return data.map((json) => BranchListDto.fromJson(json)).toList();
+    } on DioException catch (e) {
+      throw ServerException(
+        message: e.response?.data['message'] ?? 'Failed to fetch company branches',
+        code: e.response?.statusCode,
+      );
+    }
+  }
+}

lib/data/models/company/branch_dto.dart

@@ -0,0 +1,69 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'branch_dto.freezed.dart';
+part 'branch_dto.g.dart';
+
+@freezed
+class CreateBranchRequest with _$CreateBranchRequest {
+  const factory CreateBranchRequest({
+    @JsonKey(name: 'branch_name') required String branchName,
+    required String address,
+    required String phone,
+    @JsonKey(name: 'manager_name') String? managerName,
+    @JsonKey(name: 'manager_phone') String? managerPhone,
+    String? remark,
+  }) = _CreateBranchRequest;
+
+  factory CreateBranchRequest.fromJson(Map<String, dynamic> json) =>
+      _$CreateBranchRequestFromJson(json);
+}
+
+@freezed
+class UpdateBranchRequest with _$UpdateBranchRequest {
+  const factory UpdateBranchRequest({
+    @JsonKey(name: 'branch_name') String? branchName,
+    String? address,
+    String? phone,
+    @JsonKey(name: 'manager_name') String? managerName,
+    @JsonKey(name: 'manager_phone') String? managerPhone,
+    String? remark,
+  }) = _UpdateBranchRequest;
+
+  factory UpdateBranchRequest.fromJson(Map<String, dynamic> json) =>
+      _$UpdateBranchRequestFromJson(json);
+}
+
+@freezed
+class BranchResponse with _$BranchResponse {
+  const factory BranchResponse({
+    required int id,
+    @JsonKey(name: 'company_id') required int companyId,
+    @JsonKey(name: 'branch_name') required String branchName,
+    required String address,
+    required String phone,
+    @JsonKey(name: 'manager_name') String? managerName,
+    @JsonKey(name: 'manager_phone') String? managerPhone,
+    String? remark,
+    @JsonKey(name: 'created_at') required DateTime createdAt,
+    @JsonKey(name: 'updated_at') required DateTime updatedAt,
+    @JsonKey(name: 'address_id') int? addressId,
+  }) = _BranchResponse;
+
+  factory BranchResponse.fromJson(Map<String, dynamic> json) =>
+      _$BranchResponseFromJson(json);
+}
+
+@freezed
+class BranchListDto with _$BranchListDto {
+  const factory BranchListDto({
+    required int id,
+    @JsonKey(name: 'company_id') required int companyId,
+    @JsonKey(name: 'branch_name') required String branchName,
+    required String address,
+    required String phone,
+    @JsonKey(name: 'manager_name') String? managerName,
+  }) = _BranchListDto;
+
+  factory BranchListDto.fromJson(Map<String, dynamic> json) =>
+      _$BranchListDtoFromJson(json);
+}

lib/data/models/company/branch_dto.g.dart

@@ -0,0 +1,102 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'branch_dto.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+_$CreateBranchRequestImpl _$$CreateBranchRequestImplFromJson(
+        Map<String, dynamic> json) =>
+    _$CreateBranchRequestImpl(
+      branchName: json['branch_name'] as String,
+      address: json['address'] as String,
+      phone: json['phone'] as String,
+      managerName: json['manager_name'] as String?,
+      managerPhone: json['manager_phone'] as String?,
+      remark: json['remark'] as String?,
+    );
+
+Map<String, dynamic> _$$CreateBranchRequestImplToJson(
+        _$CreateBranchRequestImpl instance) =>
+    <String, dynamic>{
+      'branch_name': instance.branchName,
+      'address': instance.address,
+      'phone': instance.phone,
+      'manager_name': instance.managerName,
+      'manager_phone': instance.managerPhone,
+      'remark': instance.remark,
+    };
+
+_$UpdateBranchRequestImpl _$$UpdateBranchRequestImplFromJson(
+        Map<String, dynamic> json) =>
+    _$UpdateBranchRequestImpl(
+      branchName: json['branch_name'] as String?,
+      address: json['address'] as String?,
+      phone: json['phone'] as String?,
+      managerName: json['manager_name'] as String?,
+      managerPhone: json['manager_phone'] as String?,
+      remark: json['remark'] as String?,
+    );
+
+Map<String, dynamic> _$$UpdateBranchRequestImplToJson(
+        _$UpdateBranchRequestImpl instance) =>
+    <String, dynamic>{
+      'branch_name': instance.branchName,
+      'address': instance.address,
+      'phone': instance.phone,
+      'manager_name': instance.managerName,
+      'manager_phone': instance.managerPhone,
+      'remark': instance.remark,
+    };
+
+_$BranchResponseImpl _$$BranchResponseImplFromJson(Map<String, dynamic> json) =>
+    _$BranchResponseImpl(
+      id: (json['id'] as num).toInt(),
+      companyId: (json['company_id'] as num).toInt(),
+      branchName: json['branch_name'] as String,
+      address: json['address'] as String,
+      phone: json['phone'] as String,
+      managerName: json['manager_name'] as String?,
+      managerPhone: json['manager_phone'] as String?,
+      remark: json['remark'] as String?,
+      createdAt: DateTime.parse(json['created_at'] as String),
+      updatedAt: DateTime.parse(json['updated_at'] as String),
+      addressId: (json['address_id'] as num?)?.toInt(),
+    );
+
+Map<String, dynamic> _$$BranchResponseImplToJson(
+        _$BranchResponseImpl instance) =>
+    <String, dynamic>{
+      'id': instance.id,
+      'company_id': instance.companyId,
+      'branch_name': instance.branchName,
+      'address': instance.address,
+      'phone': instance.phone,
+      'manager_name': instance.managerName,
+      'manager_phone': instance.managerPhone,
+      'remark': instance.remark,
+      'created_at': instance.createdAt.toIso8601String(),
+      'updated_at': instance.updatedAt.toIso8601String(),
+      'address_id': instance.addressId,
+    };
+
+_$BranchListDtoImpl _$$BranchListDtoImplFromJson(Map<String, dynamic> json) =>
+    _$BranchListDtoImpl(
+      id: (json['id'] as num).toInt(),
+      companyId: (json['company_id'] as num).toInt(),
+      branchName: json['branch_name'] as String,
+      address: json['address'] as String,
+      phone: json['phone'] as String,
+      managerName: json['manager_name'] as String?,
+    );
+
+Map<String, dynamic> _$$BranchListDtoImplToJson(_$BranchListDtoImpl instance) =>
+    <String, dynamic>{
+      'id': instance.id,
+      'company_id': instance.companyId,
+      'branch_name': instance.branchName,
+      'address': instance.address,
+      'phone': instance.phone,
+      'manager_name': instance.managerName,
+    };

lib/data/models/company/company_dto.dart

@@ -0,0 +1,72 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'company_dto.freezed.dart';
+part 'company_dto.g.dart';
+
+@freezed
+class CreateCompanyRequest with _$CreateCompanyRequest {
+  const factory CreateCompanyRequest({
+    required String name,
+    required String address,
+    @JsonKey(name: 'contact_name') required String contactName,
+    @JsonKey(name: 'contact_position') required String contactPosition,
+    @JsonKey(name: 'contact_phone') required String contactPhone,
+    @JsonKey(name: 'contact_email') required String contactEmail,
+    @JsonKey(name: 'company_types') @Default([]) List<String> companyTypes,
+    String? remark,
+  }) = _CreateCompanyRequest;
+
+  factory CreateCompanyRequest.fromJson(Map<String, dynamic> json) =>
+      _$CreateCompanyRequestFromJson(json);
+}
+
+@freezed
+class UpdateCompanyRequest with _$UpdateCompanyRequest {
+  const factory UpdateCompanyRequest({
+    String? name,
+    String? address,
+    @JsonKey(name: 'contact_name') String? contactName,
+    @JsonKey(name: 'contact_position') String? contactPosition,
+    @JsonKey(name: 'contact_phone') String? contactPhone,
+    @JsonKey(name: 'contact_email') String? contactEmail,
+    @JsonKey(name: 'company_types') List<String>? companyTypes,
+    String? remark,
+    @JsonKey(name: 'is_active') bool? isActive,
+  }) = _UpdateCompanyRequest;
+
+  factory UpdateCompanyRequest.fromJson(Map<String, dynamic> json) =>
+      _$UpdateCompanyRequestFromJson(json);
+}
+
+@freezed
+class CompanyResponse with _$CompanyResponse {
+  const factory CompanyResponse({
+    required int id,
+    required String name,
+    required String address,
+    @JsonKey(name: 'contact_name') required String contactName,
+    @JsonKey(name: 'contact_position') required String contactPosition,
+    @JsonKey(name: 'contact_phone') required String contactPhone,
+    @JsonKey(name: 'contact_email') required String contactEmail,
+    @JsonKey(name: 'company_types') @Default([]) List<String> companyTypes,
+    String? remark,
+    @JsonKey(name: 'is_active') required bool isActive,
+    @JsonKey(name: 'created_at') required DateTime createdAt,
+    @JsonKey(name: 'updated_at') required DateTime updatedAt,
+    @JsonKey(name: 'address_id') int? addressId,
+  }) = _CompanyResponse;
+
+  factory CompanyResponse.fromJson(Map<String, dynamic> json) =>
+      _$CompanyResponseFromJson(json);
+}
+
+@freezed
+class CompanyNameDto with _$CompanyNameDto {
+  const factory CompanyNameDto({
+    required int id,
+    required String name,
+  }) = _CompanyNameDto;
+
+  factory CompanyNameDto.fromJson(Map<String, dynamic> json) =>
+      _$CompanyNameDtoFromJson(json);
+}

lib/data/models/company/company_dto.g.dart

@@ -0,0 +1,118 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'company_dto.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+_$CreateCompanyRequestImpl _$$CreateCompanyRequestImplFromJson(
+        Map<String, dynamic> json) =>
+    _$CreateCompanyRequestImpl(
+      name: json['name'] as String,
+      address: json['address'] as String,
+      contactName: json['contact_name'] as String,
+      contactPosition: json['contact_position'] as String,
+      contactPhone: json['contact_phone'] as String,
+      contactEmail: json['contact_email'] as String,
+      companyTypes: (json['company_types'] as List<dynamic>?)
+              ?.map((e) => e as String)
+              .toList() ??
+          const [],
+      remark: json['remark'] as String?,
+    );
+
+Map<String, dynamic> _$$CreateCompanyRequestImplToJson(
+        _$CreateCompanyRequestImpl instance) =>
+    <String, dynamic>{
+      'name': instance.name,
+      'address': instance.address,
+      'contact_name': instance.contactName,
+      'contact_position': instance.contactPosition,
+      'contact_phone': instance.contactPhone,
+      'contact_email': instance.contactEmail,
+      'company_types': instance.companyTypes,
+      'remark': instance.remark,
+    };
+
+_$UpdateCompanyRequestImpl _$$UpdateCompanyRequestImplFromJson(
+        Map<String, dynamic> json) =>
+    _$UpdateCompanyRequestImpl(
+      name: json['name'] as String?,
+      address: json['address'] as String?,
+      contactName: json['contact_name'] as String?,
+      contactPosition: json['contact_position'] as String?,
+      contactPhone: json['contact_phone'] as String?,
+      contactEmail: json['contact_email'] as String?,
+      companyTypes: (json['company_types'] as List<dynamic>?)
+          ?.map((e) => e as String)
+          .toList(),
+      remark: json['remark'] as String?,
+      isActive: json['is_active'] as bool?,
+    );
+
+Map<String, dynamic> _$$UpdateCompanyRequestImplToJson(
+        _$UpdateCompanyRequestImpl instance) =>
+    <String, dynamic>{
+      'name': instance.name,
+      'address': instance.address,
+      'contact_name': instance.contactName,
+      'contact_position': instance.contactPosition,
+      'contact_phone': instance.contactPhone,
+      'contact_email': instance.contactEmail,
+      'company_types': instance.companyTypes,
+      'remark': instance.remark,
+      'is_active': instance.isActive,
+    };
+
+_$CompanyResponseImpl _$$CompanyResponseImplFromJson(
+        Map<String, dynamic> json) =>
+    _$CompanyResponseImpl(
+      id: (json['id'] as num).toInt(),
+      name: json['name'] as String,
+      address: json['address'] as String,
+      contactName: json['contact_name'] as String,
+      contactPosition: json['contact_position'] as String,
+      contactPhone: json['contact_phone'] as String,
+      contactEmail: json['contact_email'] as String,
+      companyTypes: (json['company_types'] as List<dynamic>?)
+              ?.map((e) => e as String)
+              .toList() ??
+          const [],
+      remark: json['remark'] as String?,
+      isActive: json['is_active'] as bool,
+      createdAt: DateTime.parse(json['created_at'] as String),
+      updatedAt: DateTime.parse(json['updated_at'] as String),
+      addressId: (json['address_id'] as num?)?.toInt(),
+    );
+
+Map<String, dynamic> _$$CompanyResponseImplToJson(
+        _$CompanyResponseImpl instance) =>
+    <String, dynamic>{
+      'id': instance.id,
+      'name': instance.name,
+      'address': instance.address,
+      'contact_name': instance.contactName,
+      'contact_position': instance.contactPosition,
+      'contact_phone': instance.contactPhone,
+      'contact_email': instance.contactEmail,
+      'company_types': instance.companyTypes,
+      'remark': instance.remark,
+      'is_active': instance.isActive,
+      'created_at': instance.createdAt.toIso8601String(),
+      'updated_at': instance.updatedAt.toIso8601String(),
+      'address_id': instance.addressId,
+    };
+
+_$CompanyNameDtoImpl _$$CompanyNameDtoImplFromJson(Map<String, dynamic> json) =>
+    _$CompanyNameDtoImpl(
+      id: (json['id'] as num).toInt(),
+      name: json['name'] as String,
+    );
+
+Map<String, dynamic> _$$CompanyNameDtoImplToJson(
+        _$CompanyNameDtoImpl instance) =>
+    <String, dynamic>{
+      'id': instance.id,
+      'name': instance.name,
+    };

lib/data/models/company/company_list_dto.dart

@@ -0,0 +1,33 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'company_dto.dart';
+import 'branch_dto.dart';
+
+part 'company_list_dto.freezed.dart';
+part 'company_list_dto.g.dart';
+
+@freezed
+class CompanyListDto with _$CompanyListDto {
+  const factory CompanyListDto({
+    required int id,
+    required String name,
+    required String address,
+    @JsonKey(name: 'contact_name') required String contactName,
+    @JsonKey(name: 'contact_phone') required String contactPhone,
+    @JsonKey(name: 'is_active') required bool isActive,
+    @JsonKey(name: 'branch_count') @Default(0) int branchCount,
+  }) = _CompanyListDto;
+
+  factory CompanyListDto.fromJson(Map<String, dynamic> json) =>
+      _$CompanyListDtoFromJson(json);
+}
+
+@freezed
+class CompanyWithBranches with _$CompanyWithBranches {
+  const factory CompanyWithBranches({
+    required CompanyResponse company,
+    @Default([]) List<BranchListDto> branches,
+  }) = _CompanyWithBranches;
+
+  factory CompanyWithBranches.fromJson(Map<String, dynamic> json) =>
+      _$CompanyWithBranchesFromJson(json);
+}

lib/data/models/company/company_list_dto.freezed.dart

@@ -0,0 +1,499 @@
+// coverage:ignore-file
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint
+// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target, unnecessary_question_mark
+
+part of 'company_list_dto.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+T _$identity<T>(T value) => value;
+
+final _privateConstructorUsedError = UnsupportedError(
+    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more information: https://github.com/rrousselGit/freezed#adding-getters-and-methods-to-our-models');
+
+CompanyListDto _$CompanyListDtoFromJson(Map<String, dynamic> json) {
+  return _CompanyListDto.fromJson(json);
+}
+
+/// @nodoc
+mixin _$CompanyListDto {
+  int get id => throw _privateConstructorUsedError;
+  String get name => throw _privateConstructorUsedError;
+  String get address => throw _privateConstructorUsedError;
+  @JsonKey(name: 'contact_name')
+  String get contactName => throw _privateConstructorUsedError;
+  @JsonKey(name: 'contact_phone')
+  String get contactPhone => throw _privateConstructorUsedError;
+  @JsonKey(name: 'is_active')
+  bool get isActive => throw _privateConstructorUsedError;
+  @JsonKey(name: 'branch_count')
+  int get branchCount => throw _privateConstructorUsedError;
+
+  /// Serializes this CompanyListDto to a JSON map.
+  Map<String, dynamic> toJson() => throw _privateConstructorUsedError;
+
+  /// Create a copy of CompanyListDto
+  /// with the given fields replaced by the non-null parameter values.
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  $CompanyListDtoCopyWith<CompanyListDto> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $CompanyListDtoCopyWith<$Res> {
+  factory $CompanyListDtoCopyWith(
+          CompanyListDto value, $Res Function(CompanyListDto) then) =
+      _$CompanyListDtoCopyWithImpl<$Res, CompanyListDto>;
+  @useResult
+  $Res call(
+      {int id,
+      String name,
+      String address,
+      @JsonKey(name: 'contact_name') String contactName,
+      @JsonKey(name: 'contact_phone') String contactPhone,
+      @JsonKey(name: 'is_active') bool isActive,
+      @JsonKey(name: 'branch_count') int branchCount});
+}
+
+/// @nodoc
+class _$CompanyListDtoCopyWithImpl<$Res, $Val extends CompanyListDto>
+    implements $CompanyListDtoCopyWith<$Res> {
+  _$CompanyListDtoCopyWithImpl(this._value, this._then);
+
+  // ignore: unused_field
+  final $Val _value;
+  // ignore: unused_field
+  final $Res Function($Val) _then;
+
+  /// Create a copy of CompanyListDto
+  /// with the given fields replaced by the non-null parameter values.
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? id = null,
+    Object? name = null,
+    Object? address = null,
+    Object? contactName = null,
+    Object? contactPhone = null,
+    Object? isActive = null,
+    Object? branchCount = null,
+  }) {
+    return _then(_value.copyWith(
+      id: null == id
+          ? _value.id
+          : id // ignore: cast_nullable_to_non_nullable
+              as int,
+      name: null == name
+          ? _value.name
+          : name // ignore: cast_nullable_to_non_nullable
+              as String,
+      address: null == address
+          ? _value.address
+          : address // ignore: cast_nullable_to_non_nullable
+              as String,
+      contactName: null == contactName
+          ? _value.contactName
+          : contactName // ignore: cast_nullable_to_non_nullable
+              as String,
+      contactPhone: null == contactPhone
+          ? _value.contactPhone
+          : contactPhone // ignore: cast_nullable_to_non_nullable
+              as String,
+      isActive: null == isActive
+          ? _value.isActive
+          : isActive // ignore: cast_nullable_to_non_nullable
+              as bool,
+      branchCount: null == branchCount
+          ? _value.branchCount
+          : branchCount // ignore: cast_nullable_to_non_nullable
+              as int,
+    ) as $Val);
+  }
+}
+
+/// @nodoc
+abstract class _$$CompanyListDtoImplCopyWith<$Res>
+    implements $CompanyListDtoCopyWith<$Res> {
+  factory _$$CompanyListDtoImplCopyWith(_$CompanyListDtoImpl value,
+          $Res Function(_$CompanyListDtoImpl) then) =
+      __$$CompanyListDtoImplCopyWithImpl<$Res>;
+  @override
+  @useResult
+  $Res call(
+      {int id,
+      String name,
+      String address,
+      @JsonKey(name: 'contact_name') String contactName,
+      @JsonKey(name: 'contact_phone') String contactPhone,
+      @JsonKey(name: 'is_active') bool isActive,
+      @JsonKey(name: 'branch_count') int branchCount});
+}
+
+/// @nodoc
+class __$$CompanyListDtoImplCopyWithImpl<$Res>
+    extends _$CompanyListDtoCopyWithImpl<$Res, _$CompanyListDtoImpl>
+    implements _$$CompanyListDtoImplCopyWith<$Res> {
+  __$$CompanyListDtoImplCopyWithImpl(
+      _$CompanyListDtoImpl _value, $Res Function(_$CompanyListDtoImpl) _then)
+      : super(_value, _then);
+
+  /// Create a copy of CompanyListDto
+  /// with the given fields replaced by the non-null parameter values.
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? id = null,
+    Object? name = null,
+    Object? address = null,
+    Object? contactName = null,
+    Object? contactPhone = null,
+    Object? isActive = null,
+    Object? branchCount = null,
+  }) {
+    return _then(_$CompanyListDtoImpl(
+      id: null == id
+          ? _value.id
+          : id // ignore: cast_nullable_to_non_nullable
+              as int,
+      name: null == name
+          ? _value.name
+          : name // ignore: cast_nullable_to_non_nullable
+              as String,
+      address: null == address
+          ? _value.address
+          : address // ignore: cast_nullable_to_non_nullable
+              as String,
+      contactName: null == contactName
+          ? _value.contactName
+          : contactName // ignore: cast_nullable_to_non_nullable
+              as String,
+      contactPhone: null == contactPhone
+          ? _value.contactPhone
+          : contactPhone // ignore: cast_nullable_to_non_nullable
+              as String,
+      isActive: null == isActive
+          ? _value.isActive
+          : isActive // ignore: cast_nullable_to_non_nullable
+              as bool,
+      branchCount: null == branchCount
+          ? _value.branchCount
+          : branchCount // ignore: cast_nullable_to_non_nullable
+              as int,
+    ));
+  }
+}
+
+/// @nodoc
+@JsonSerializable()
+class _$CompanyListDtoImpl implements _CompanyListDto {
+  const _$CompanyListDtoImpl(
+      {required this.id,
+      required this.name,
+      required this.address,
+      @JsonKey(name: 'contact_name') required this.contactName,
+      @JsonKey(name: 'contact_phone') required this.contactPhone,
+      @JsonKey(name: 'is_active') required this.isActive,
+      @JsonKey(name: 'branch_count') this.branchCount = 0});
+
+  factory _$CompanyListDtoImpl.fromJson(Map<String, dynamic> json) =>
+      _$$CompanyListDtoImplFromJson(json);
+
+  @override
+  final int id;
+  @override
+  final String name;
+  @override
+  final String address;
+  @override
+  @JsonKey(name: 'contact_name')
+  final String contactName;
+  @override
+  @JsonKey(name: 'contact_phone')
+  final String contactPhone;
+  @override
+  @JsonKey(name: 'is_active')
+  final bool isActive;
+  @override
+  @JsonKey(name: 'branch_count')
+  final int branchCount;
+
+  @override
+  String toString() {
+    return 'CompanyListDto(id: $id, name: $name, address: $address, contactName: $contactName, contactPhone: $contactPhone, isActive: $isActive, branchCount: $branchCount)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$CompanyListDtoImpl &&
+            (identical(other.id, id) || other.id == id) &&
+            (identical(other.name, name) || other.name == name) &&
+            (identical(other.address, address) || other.address == address) &&
+            (identical(other.contactName, contactName) ||
+                other.contactName == contactName) &&
+            (identical(other.contactPhone, contactPhone) ||
+                other.contactPhone == contactPhone) &&
+            (identical(other.isActive, isActive) ||
+                other.isActive == isActive) &&
+            (identical(other.branchCount, branchCount) ||
+                other.branchCount == branchCount));
+  }
+
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  @override
+  int get hashCode => Object.hash(runtimeType, id, name, address, contactName,
+      contactPhone, isActive, branchCount);
+
+  /// Create a copy of CompanyListDto
+  /// with the given fields replaced by the non-null parameter values.
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$CompanyListDtoImplCopyWith<_$CompanyListDtoImpl> get copyWith =>
+      __$$CompanyListDtoImplCopyWithImpl<_$CompanyListDtoImpl>(
+          this, _$identity);
+
+  @override
+  Map<String, dynamic> toJson() {
+    return _$$CompanyListDtoImplToJson(
+      this,
+    );
+  }
+}
+
+abstract class _CompanyListDto implements CompanyListDto {
+  const factory _CompanyListDto(
+          {required final int id,
+          required final String name,
+          required final String address,
+          @JsonKey(name: 'contact_name') required final String contactName,
+          @JsonKey(name: 'contact_phone') required final String contactPhone,
+          @JsonKey(name: 'is_active') required final bool isActive,
+          @JsonKey(name: 'branch_count') final int branchCount}) =
+      _$CompanyListDtoImpl;
+
+  factory _CompanyListDto.fromJson(Map<String, dynamic> json) =
+      _$CompanyListDtoImpl.fromJson;
+
+  @override
+  int get id;
+  @override
+  String get name;
+  @override
+  String get address;
+  @override
+  @JsonKey(name: 'contact_name')
+  String get contactName;
+  @override
+  @JsonKey(name: 'contact_phone')
+  String get contactPhone;
+  @override
+  @JsonKey(name: 'is_active')
+  bool get isActive;
+  @override
+  @JsonKey(name: 'branch_count')
+  int get branchCount;
+
+  /// Create a copy of CompanyListDto
+  /// with the given fields replaced by the non-null parameter values.
+  @override
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  _$$CompanyListDtoImplCopyWith<_$CompanyListDtoImpl> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+CompanyWithBranches _$CompanyWithBranchesFromJson(Map<String, dynamic> json) {
+  return _CompanyWithBranches.fromJson(json);
+}
+
+/// @nodoc
+mixin _$CompanyWithBranches {
+  CompanyResponse get company => throw _privateConstructorUsedError;
+  List<BranchListDto> get branches => throw _privateConstructorUsedError;
+
+  /// Serializes this CompanyWithBranches to a JSON map.
+  Map<String, dynamic> toJson() => throw _privateConstructorUsedError;
+
+  /// Create a copy of CompanyWithBranches
+  /// with the given fields replaced by the non-null parameter values.
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  $CompanyWithBranchesCopyWith<CompanyWithBranches> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $CompanyWithBranchesCopyWith<$Res> {
+  factory $CompanyWithBranchesCopyWith(
+          CompanyWithBranches value, $Res Function(CompanyWithBranches) then) =
+      _$CompanyWithBranchesCopyWithImpl<$Res, CompanyWithBranches>;
+  @useResult
+  $Res call({CompanyResponse company, List<BranchListDto> branches});
+
+  $CompanyResponseCopyWith<$Res> get company;
+}
+
+/// @nodoc
+class _$CompanyWithBranchesCopyWithImpl<$Res, $Val extends CompanyWithBranches>
+    implements $CompanyWithBranchesCopyWith<$Res> {
+  _$CompanyWithBranchesCopyWithImpl(this._value, this._then);
+
+  // ignore: unused_field
+  final $Val _value;
+  // ignore: unused_field
+  final $Res Function($Val) _then;
+
+  /// Create a copy of CompanyWithBranches
+  /// with the given fields replaced by the non-null parameter values.
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? company = null,
+    Object? branches = null,
+  }) {
+    return _then(_value.copyWith(
+      company: null == company
+          ? _value.company
+          : company // ignore: cast_nullable_to_non_nullable
+              as CompanyResponse,
+      branches: null == branches
+          ? _value.branches
+          : branches // ignore: cast_nullable_to_non_nullable
+              as List<BranchListDto>,
+    ) as $Val);
+  }
+
+  /// Create a copy of CompanyWithBranches
+  /// with the given fields replaced by the non-null parameter values.
+  @override
+  @pragma('vm:prefer-inline')
+  $CompanyResponseCopyWith<$Res> get company {
+    return $CompanyResponseCopyWith<$Res>(_value.company, (value) {
+      return _then(_value.copyWith(company: value) as $Val);
+    });
+  }
+}
+
+/// @nodoc
+abstract class _$$CompanyWithBranchesImplCopyWith<$Res>
+    implements $CompanyWithBranchesCopyWith<$Res> {
+  factory _$$CompanyWithBranchesImplCopyWith(_$CompanyWithBranchesImpl value,
+          $Res Function(_$CompanyWithBranchesImpl) then) =
+      __$$CompanyWithBranchesImplCopyWithImpl<$Res>;
+  @override
+  @useResult
+  $Res call({CompanyResponse company, List<BranchListDto> branches});
+
+  @override
+  $CompanyResponseCopyWith<$Res> get company;
+}
+
+/// @nodoc
+class __$$CompanyWithBranchesImplCopyWithImpl<$Res>
+    extends _$CompanyWithBranchesCopyWithImpl<$Res, _$CompanyWithBranchesImpl>
+    implements _$$CompanyWithBranchesImplCopyWith<$Res> {
+  __$$CompanyWithBranchesImplCopyWithImpl(_$CompanyWithBranchesImpl _value,
+      $Res Function(_$CompanyWithBranchesImpl) _then)
+      : super(_value, _then);
+
+  /// Create a copy of CompanyWithBranches
+  /// with the given fields replaced by the non-null parameter values.
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? company = null,
+    Object? branches = null,
+  }) {
+    return _then(_$CompanyWithBranchesImpl(
+      company: null == company
+          ? _value.company
+          : company // ignore: cast_nullable_to_non_nullable
+              as CompanyResponse,
+      branches: null == branches
+          ? _value._branches
+          : branches // ignore: cast_nullable_to_non_nullable
+              as List<BranchListDto>,
+    ));
+  }
+}
+
+/// @nodoc
+@JsonSerializable()
+class _$CompanyWithBranchesImpl implements _CompanyWithBranches {
+  const _$CompanyWithBranchesImpl(
+      {required this.company, final List<BranchListDto> branches = const []})
+      : _branches = branches;
+
+  factory _$CompanyWithBranchesImpl.fromJson(Map<String, dynamic> json) =>
+      _$$CompanyWithBranchesImplFromJson(json);
+
+  @override
+  final CompanyResponse company;
+  final List<BranchListDto> _branches;
+  @override
+  @JsonKey()
+  List<BranchListDto> get branches {
+    if (_branches is EqualUnmodifiableListView) return _branches;
+    // ignore: implicit_dynamic_type
+    return EqualUnmodifiableListView(_branches);
+  }
+
+  @override
+  String toString() {
+    return 'CompanyWithBranches(company: $company, branches: $branches)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$CompanyWithBranchesImpl &&
+            (identical(other.company, company) || other.company == company) &&
+            const DeepCollectionEquality().equals(other._branches, _branches));
+  }
+
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  @override
+  int get hashCode => Object.hash(
+      runtimeType, company, const DeepCollectionEquality().hash(_branches));
+
+  /// Create a copy of CompanyWithBranches
+  /// with the given fields replaced by the non-null parameter values.
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$CompanyWithBranchesImplCopyWith<_$CompanyWithBranchesImpl> get copyWith =>
+      __$$CompanyWithBranchesImplCopyWithImpl<_$CompanyWithBranchesImpl>(
+          this, _$identity);
+
+  @override
+  Map<String, dynamic> toJson() {
+    return _$$CompanyWithBranchesImplToJson(
+      this,
+    );
+  }
+}
+
+abstract class _CompanyWithBranches implements CompanyWithBranches {
+  const factory _CompanyWithBranches(
+      {required final CompanyResponse company,
+      final List<BranchListDto> branches}) = _$CompanyWithBranchesImpl;
+
+  factory _CompanyWithBranches.fromJson(Map<String, dynamic> json) =
+      _$CompanyWithBranchesImpl.fromJson;
+
+  @override
+  CompanyResponse get company;
+  @override
+  List<BranchListDto> get branches;
+
+  /// Create a copy of CompanyWithBranches
+  /// with the given fields replaced by the non-null parameter values.
+  @override
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  _$$CompanyWithBranchesImplCopyWith<_$CompanyWithBranchesImpl> get copyWith =>
+      throw _privateConstructorUsedError;
+}

lib/data/models/company/company_list_dto.g.dart

@@ -0,0 +1,48 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'company_list_dto.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+_$CompanyListDtoImpl _$$CompanyListDtoImplFromJson(Map<String, dynamic> json) =>
+    _$CompanyListDtoImpl(
+      id: (json['id'] as num).toInt(),
+      name: json['name'] as String,
+      address: json['address'] as String,
+      contactName: json['contact_name'] as String,
+      contactPhone: json['contact_phone'] as String,
+      isActive: json['is_active'] as bool,
+      branchCount: (json['branch_count'] as num?)?.toInt() ?? 0,
+    );
+
+Map<String, dynamic> _$$CompanyListDtoImplToJson(
+        _$CompanyListDtoImpl instance) =>
+    <String, dynamic>{
+      'id': instance.id,
+      'name': instance.name,
+      'address': instance.address,
+      'contact_name': instance.contactName,
+      'contact_phone': instance.contactPhone,
+      'is_active': instance.isActive,
+      'branch_count': instance.branchCount,
+    };
+
+_$CompanyWithBranchesImpl _$$CompanyWithBranchesImplFromJson(
+        Map<String, dynamic> json) =>
+    _$CompanyWithBranchesImpl(
+      company:
+          CompanyResponse.fromJson(json['company'] as Map<String, dynamic>),
+      branches: (json['branches'] as List<dynamic>?)
+              ?.map((e) => BranchListDto.fromJson(e as Map<String, dynamic>))
+              .toList() ??
+          const [],
+    );
+
+Map<String, dynamic> _$$CompanyWithBranchesImplToJson(
+        _$CompanyWithBranchesImpl instance) =>
+    <String, dynamic>{
+      'company': instance.company,
+      'branches': instance.branches,
+    };

lib/di/injection_container.dart

@@ -6,9 +6,11 @@ import '../data/datasources/remote/api_client.dart';
 import '../data/datasources/remote/auth_remote_datasource.dart';
 import '../data/datasources/remote/dashboard_remote_datasource.dart';
 import '../data/datasources/remote/equipment_remote_datasource.dart';
+import '../data/datasources/remote/company_remote_datasource.dart';
 import '../services/auth_service.dart';
 import '../services/dashboard_service.dart';
 import '../services/equipment_service.dart';
+import '../services/company_service.dart';
 
 /// GetIt 인스턴스
 final getIt = GetIt.instance;
@@ -35,6 +37,9 @@ Future<void> setupDependencies() async {
   getIt.registerLazySingleton<EquipmentRemoteDataSource>(
     () => EquipmentRemoteDataSourceImpl(),
   );
+  getIt.registerLazySingleton<CompanyRemoteDataSource>(
+    () => CompanyRemoteDataSourceImpl(),
+  );
   
   // 서비스
   getIt.registerLazySingleton<AuthService>(
@@ -46,6 +51,9 @@ Future<void> setupDependencies() async {
   getIt.registerLazySingleton<EquipmentService>(
     () => EquipmentService(),
   );
+  getIt.registerLazySingleton<CompanyService>(
+    () => CompanyService(),
+  );
   
   // 리포지토리
   // TODO: Repositories will be registered here

lib/screens/company/company_form.dart

@@ -200,14 +200,41 @@ class _CompanyFormScreenState extends State<CompanyFormScreen> {
   }
 
   // 회사 저장
-  void _saveCompany() {
+  Future<void> _saveCompany() async {
     final duplicateCompany = _controller.checkDuplicateCompany();
     if (duplicateCompany != null) {
       DuplicateCompanyDialog.show(context, duplicateCompany);
       return;
     }
-    if (_controller.saveCompany()) {
+    
-      Navigator.pop(context, true);
+    // 로딩 표시
+    showDialog(
+      context: context,
+      barrierDismissible: false,
+      builder: (context) => const Center(
+        child: CircularProgressIndicator(),
+      ),
+    );
+    
+    try {
+      final success = await _controller.saveCompany();
+      if (mounted) {
+        Navigator.pop(context); // 로딩 다이얼로그 닫기
+        if (success) {
+          Navigator.pop(context, true);
+        } else {
+          ScaffoldMessenger.of(context).showSnackBar(
+            const SnackBar(content: Text('회사 저장에 실패했습니다.')),
+          );
+        }
+      }
+    } catch (e) {
+      if (mounted) {
+        Navigator.pop(context); // 로딩 다이얼로그 닫기
+        ScaffoldMessenger.of(context).showSnackBar(
+          SnackBar(content: Text('오류가 발생했습니다: $e')),
+        );
+      }
     }
   }
 

lib/screens/equipment/controllers/equipment_out_form_controller.dart

@@ -533,9 +533,8 @@ class EquipmentOutFormController extends ChangeNotifier {
         } else {
           onError('출고 정보를 찾을 수 없습니다');
         }
-      }
+      } else {
-    } else {
+        if (selectedEquipments != null && selectedEquipments!.isNotEmpty) {
-      if (selectedEquipments != null && selectedEquipments!.isNotEmpty) {
         // 여러 회사에 각각 출고 처리
         List<String> successCompanies = [];
 
@@ -591,7 +590,7 @@ class EquipmentOutFormController extends ChangeNotifier {
         } else {
           onSuccess('${successCompanies.join(", ")} 회사로 다중 장비 출고 처리 완료');
         }
-      } else if (selectedEquipmentInId != null) {
+        } else if (selectedEquipmentInId != null) {
         final equipment = Equipment(
           manufacturer: manufacturer,
           name: name,
@@ -722,7 +721,6 @@ class EquipmentOutFormController extends ChangeNotifier {
           onSuccess('${successCompanies.join(", ")} 회사로 새 출고 장비 추가 완료');
         }
       }
-    }
     } on Failure catch (e) {
       _error = e.message;
       onError(e.message);

lib/services/company_service.dart

@@ -0,0 +1,291 @@
+import 'package:get_it/get_it.dart';
+import 'package:superport/core/errors/exceptions.dart';
+import 'package:superport/core/errors/failures.dart';
+import 'package:superport/data/datasources/remote/company_remote_datasource.dart';
+import 'package:superport/data/models/company/company_dto.dart';
+import 'package:superport/data/models/company/company_list_dto.dart';
+import 'package:superport/data/models/company/branch_dto.dart';
+import 'package:superport/models/company_model.dart';
+import 'package:superport/models/address_model.dart';
+
+class CompanyService {
+  final CompanyRemoteDataSource _remoteDataSource = GetIt.instance<CompanyRemoteDataSource>();
+
+  // 회사 목록 조회
+  Future<List<Company>> getCompanies({
+    int page = 1,
+    int perPage = 20,
+    String? search,
+    bool? isActive,
+  }) async {
+    try {
+      final dtoList = await _remoteDataSource.getCompanies(
+        page: page,
+        perPage: perPage,
+        search: search,
+        isActive: isActive,
+      );
+
+      return dtoList.map((dto) => _convertListDtoToCompany(dto)).toList();
+    } on ServerException catch (e) {
+      throw Failure(message: e.message);
+    } catch (e) {
+      throw Failure(message: 'Failed to fetch company list: $e');
+    }
+  }
+
+  // 회사 생성
+  Future<Company> createCompany(Company company) async {
+    try {
+      final request = CreateCompanyRequest(
+        name: company.name,
+        address: company.address.toString(),
+        contactName: company.contactName ?? '',
+        contactPosition: company.contactPosition ?? '',
+        contactPhone: company.contactPhone ?? '',
+        contactEmail: company.contactEmail ?? '',
+        companyTypes: company.companyTypes.map((e) => e.toString().split('.').last).toList(),
+        remark: company.remark,
+      );
+
+      final response = await _remoteDataSource.createCompany(request);
+      return _convertResponseToCompany(response);
+    } on ServerException catch (e) {
+      throw Failure(message: e.message);
+    } catch (e) {
+      throw Failure(message: 'Failed to create company: $e');
+    }
+  }
+
+  // 회사 상세 조회
+  Future<Company> getCompanyDetail(int id) async {
+    try {
+      final response = await _remoteDataSource.getCompanyDetail(id);
+      return _convertResponseToCompany(response);
+    } on ServerException catch (e) {
+      throw Failure(message: e.message);
+    } catch (e) {
+      throw Failure(message: 'Failed to fetch company detail: $e');
+    }
+  }
+
+  // 회사와 지점 정보 함께 조회
+  Future<Company> getCompanyWithBranches(int id) async {
+    try {
+      final response = await _remoteDataSource.getCompanyWithBranches(id);
+      final company = _convertResponseToCompany(response.company);
+      final branches = response.branches.map((dto) => _convertBranchDtoToBranch(dto)).toList();
+      
+      return company.copyWith(branches: branches);
+    } on ServerException catch (e) {
+      throw Failure(message: e.message);
+    } catch (e) {
+      throw Failure(message: 'Failed to fetch company with branches: $e');
+    }
+  }
+
+  // 회사 수정
+  Future<Company> updateCompany(int id, Company company) async {
+    try {
+      final request = UpdateCompanyRequest(
+        name: company.name,
+        address: company.address.toString(),
+        contactName: company.contactName,
+        contactPosition: company.contactPosition,
+        contactPhone: company.contactPhone,
+        contactEmail: company.contactEmail,
+        companyTypes: company.companyTypes.map((e) => e.toString().split('.').last).toList(),
+        remark: company.remark,
+      );
+
+      final response = await _remoteDataSource.updateCompany(id, request);
+      return _convertResponseToCompany(response);
+    } on ServerException catch (e) {
+      throw Failure(message: e.message);
+    } catch (e) {
+      throw Failure(message: 'Failed to update company: $e');
+    }
+  }
+
+  // 회사 삭제
+  Future<void> deleteCompany(int id) async {
+    try {
+      await _remoteDataSource.deleteCompany(id);
+    } on ServerException catch (e) {
+      throw Failure(message: e.message);
+    } catch (e) {
+      throw Failure(message: 'Failed to delete company: $e');
+    }
+  }
+
+  // 회사명 목록 조회 (드롭다운용)
+  Future<List<Map<String, dynamic>>> getCompanyNames() async {
+    try {
+      final dtoList = await _remoteDataSource.getCompanyNames();
+      return dtoList.map((dto) => {
+        'id': dto.id,
+        'name': dto.name,
+      }).toList();
+    } on ServerException catch (e) {
+      throw Failure(message: e.message);
+    } catch (e) {
+      throw Failure(message: 'Failed to fetch company names: $e');
+    }
+  }
+
+  // 지점 관련 메서드들
+  Future<Branch> createBranch(int companyId, Branch branch) async {
+    try {
+      final request = CreateBranchRequest(
+        branchName: branch.name,
+        address: branch.address.toString(),
+        phone: branch.contactPhone ?? '',
+        managerName: branch.contactName,
+        managerPhone: branch.contactPhone,
+        remark: branch.remark,
+      );
+
+      final response = await _remoteDataSource.createBranch(companyId, request);
+      return _convertBranchResponseToBranch(response);
+    } on ServerException catch (e) {
+      throw Failure(message: e.message);
+    } catch (e) {
+      throw Failure(message: 'Failed to create branch: $e');
+    }
+  }
+
+  Future<Branch> getBranchDetail(int companyId, int branchId) async {
+    try {
+      final response = await _remoteDataSource.getBranchDetail(companyId, branchId);
+      return _convertBranchResponseToBranch(response);
+    } on ServerException catch (e) {
+      throw Failure(message: e.message);
+    } catch (e) {
+      throw Failure(message: 'Failed to fetch branch detail: $e');
+    }
+  }
+
+  Future<Branch> updateBranch(int companyId, int branchId, Branch branch) async {
+    try {
+      final request = UpdateBranchRequest(
+        branchName: branch.name,
+        address: branch.address.toString(),
+        phone: branch.contactPhone,
+        managerName: branch.contactName,
+        managerPhone: branch.contactPhone,
+        remark: branch.remark,
+      );
+
+      final response = await _remoteDataSource.updateBranch(companyId, branchId, request);
+      return _convertBranchResponseToBranch(response);
+    } on ServerException catch (e) {
+      throw Failure(message: e.message);
+    } catch (e) {
+      throw Failure(message: 'Failed to update branch: $e');
+    }
+  }
+
+  Future<void> deleteBranch(int companyId, int branchId) async {
+    try {
+      await _remoteDataSource.deleteBranch(companyId, branchId);
+    } on ServerException catch (e) {
+      throw Failure(message: e.message);
+    } catch (e) {
+      throw Failure(message: 'Failed to delete branch: $e');
+    }
+  }
+
+  Future<List<Branch>> getCompanyBranches(int companyId) async {
+    try {
+      final dtoList = await _remoteDataSource.getCompanyBranches(companyId);
+      return dtoList.map((dto) => _convertBranchDtoToBranch(dto)).toList();
+    } on ServerException catch (e) {
+      throw Failure(message: e.message);
+    } catch (e) {
+      throw Failure(message: 'Failed to fetch company branches: $e');
+    }
+  }
+
+  // 변환 헬퍼 메서드들
+  Company _convertListDtoToCompany(CompanyListDto dto) {
+    return Company(
+      id: dto.id,
+      name: dto.name,
+      address: Address.fromFullAddress(dto.address),
+      contactName: dto.contactName,
+      contactPhone: dto.contactPhone,
+      companyTypes: [CompanyType.customer], // 기본값, 실제로는 API에서 받아와야 함
+    );
+  }
+
+  Company _convertResponseToCompany(CompanyResponse dto) {
+    final companyTypes = dto.companyTypes.map((typeStr) {
+      if (typeStr.contains('partner')) return CompanyType.partner;
+      return CompanyType.customer;
+    }).toList();
+
+    return Company(
+      id: dto.id,
+      name: dto.name,
+      address: Address.fromFullAddress(dto.address),
+      contactName: dto.contactName,
+      contactPosition: dto.contactPosition,
+      contactPhone: dto.contactPhone,
+      contactEmail: dto.contactEmail,
+      companyTypes: companyTypes.isEmpty ? [CompanyType.customer] : companyTypes,
+      remark: dto.remark,
+    );
+  }
+
+  Branch _convertBranchDtoToBranch(BranchListDto dto) {
+    return Branch(
+      id: dto.id,
+      companyId: dto.companyId,
+      name: dto.branchName,
+      address: Address.fromFullAddress(dto.address),
+      contactName: dto.managerName,
+      contactPhone: dto.phone,
+    );
+  }
+
+  Branch _convertBranchResponseToBranch(BranchResponse dto) {
+    return Branch(
+      id: dto.id,
+      companyId: dto.companyId,
+      name: dto.branchName,
+      address: Address.fromFullAddress(dto.address),
+      contactName: dto.managerName,
+      contactPhone: dto.phone,
+      remark: dto.remark,
+    );
+  }
+}
+
+// Company 모델에 copyWith 메서드가 없다면 extension으로 추가
+extension CompanyExtension on Company {
+  Company copyWith({
+    int? id,
+    String? name,
+    Address? address,
+    String? contactName,
+    String? contactPosition,
+    String? contactPhone,
+    String? contactEmail,
+    List<Branch>? branches,
+    List<CompanyType>? companyTypes,
+    String? remark,
+  }) {
+    return Company(
+      id: id ?? this.id,
+      name: name ?? this.name,
+      address: address ?? this.address,
+      contactName: contactName ?? this.contactName,
+      contactPosition: contactPosition ?? this.contactPosition,
+      contactPhone: contactPhone ?? this.contactPhone,
+      contactEmail: contactEmail ?? this.contactEmail,
+      branches: branches ?? this.branches,
+      companyTypes: companyTypes ?? this.companyTypes,
+      remark: remark ?? this.remark,
+    );
+  }
+}