diff --git a/Collaborateur_Epa_Back/espacecollab.backend.api/Controllers/AgenceController.cs b/Collaborateur_Epa_Back/espacecollab.backend.api/Controllers/AgencesController.cs
similarity index 53%
rename from Collaborateur_Epa_Back/espacecollab.backend.api/Controllers/AgenceController.cs
rename to Collaborateur_Epa_Back/espacecollab.backend.api/Controllers/AgencesController.cs
index dc96075..be84b16 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.api/Controllers/AgenceController.cs
+++ b/Collaborateur_Epa_Back/espacecollab.backend.api/Controllers/AgencesController.cs
@@ -3,9 +3,9 @@ using espacecollab.backend.appservices.dtos;
 
 namespace espacecollab.backend.api.Controllers
 {
-    public class AgenceController : BaseController<AgenceApiDto>
+    public class AgencesController : BaseController<AgenceApiDto>
     {
-        public AgenceController(AgenceService agenceService) : base(agenceService)
+        public AgencesController(AgenceServices agenceService) : base(agenceService)
         {
         }
     }
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.api/Controllers/BusinessUnitsController.cs b/Collaborateur_Epa_Back/espacecollab.backend.api/Controllers/BusinessUnitsController.cs
new file mode 100644
index 0000000..60fa49b
--- /dev/null
+++ b/Collaborateur_Epa_Back/espacecollab.backend.api/Controllers/BusinessUnitsController.cs
@@ -0,0 +1,28 @@
+using espacecollab.backend.appservices;
+using espacecollab.backend.appservices.dtos;
+using Microsoft.AspNetCore.Mvc;
+
+namespace espacecollab.backend.api.Controllers
+{
+    //[Route("api/[controller]")]
+    //[ApiController]
+    public class BusinessUnitsController : BaseController<BusinessUnitApiDto>
+    {
+        private BusinessUnitServices BusinessUnitServices { get; }
+
+        public BusinessUnitsController(BusinessUnitServices businessUnitServices) : base(businessUnitServices)
+        {
+            BusinessUnitServices = businessUnitServices;
+        }
+
+        [HttpGet("agence/{agenceId:int:min(1)}")]
+        public ActionResult<IEnumerable<BusinessUnitApiDto>> GetBusinessUnitsByAgence(uint agenceId)
+        {
+            IEnumerable<BusinessUnitApiDto> businessUnits = BusinessUnitServices.GetBusinessUnitsByAgence(agenceId);
+            if (!businessUnits.Any())
+                return NotFound();
+
+            return Ok(businessUnits);
+        }
+    }
+}
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.api/Register.cs b/Collaborateur_Epa_Back/espacecollab.backend.api/Register.cs
index 4616de7..5c2b55f 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.api/Register.cs
+++ b/Collaborateur_Epa_Back/espacecollab.backend.api/Register.cs
@@ -13,7 +13,8 @@ internal static class Register
     {
         services.AddCors();
         services.AddScoped<CollaborateursServices>();
-        services.AddScoped<AgenceService>();
+        services.AddScoped<AgenceServices>();
+        services.AddScoped<BusinessUnitServices>();
 
         if (contextOptions.LoadFake)
         {
@@ -25,6 +26,7 @@ internal static class Register
             services.AddScoped<MainDbContext>();
             services.AddScoped<ICollaborateurRepository, CollaborateurSqlRepository>();
             services.AddScoped<IAgenceRepository, AgenceSqlRepository>();
+            services.AddScoped<IBusinessUnitRepository, BusinessUnitSqlRepository>();
         }
     }
 }
\ No newline at end of file
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/BusinessUnitApiDto.cs b/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/BusinessUnitApiDto.cs
new file mode 100644
index 0000000..9f48eaa
--- /dev/null
+++ b/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/BusinessUnitApiDto.cs
@@ -0,0 +1,8 @@
+using espacecollab.backend.appservices.dtos.Interfaces;
+
+namespace espacecollab.backend.appservices.dtos;
+
+public record BusinessUnitApiDto(uint Id, string Name, int AgenceId) : IGenericIdApiDto
+{
+    public uint Id { get; set; } = Id;
+}
\ No newline at end of file
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/Mappers/BusinessUnitMapper.cs b/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/Mappers/BusinessUnitMapper.cs
new file mode 100644
index 0000000..01823d2
--- /dev/null
+++ b/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/Mappers/BusinessUnitMapper.cs
@@ -0,0 +1,15 @@
+using espacecollab.backend.infrastructure.sql.dtos;
+
+namespace espacecollab.backend.appservices.dtos.Mappers;
+
+public static class BusinessUnitMapper
+{
+    public static BusinessUnitApiDto ToApi(this BusinessUnitSqlDto agenceSqlDto)
+    {
+        return new BusinessUnitApiDto((uint)agenceSqlDto.Id, agenceSqlDto.Name,agenceSqlDto.AgenceId);
+    }
+    public static BusinessUnitSqlDto ToSql(this BusinessUnitApiDto agenceApiDto)
+    {
+        return new BusinessUnitSqlDto((int)agenceApiDto.Id, agenceApiDto.Name, agenceApiDto.AgenceId);
+    }
+}
\ No newline at end of file
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.appservices/AgenceService.cs b/Collaborateur_Epa_Back/espacecollab.backend.appservices/AgenceServices.cs
similarity index 71%
rename from Collaborateur_Epa_Back/espacecollab.backend.appservices/AgenceService.cs
rename to Collaborateur_Epa_Back/espacecollab.backend.appservices/AgenceServices.cs
index fb7bfef..defd0b7 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.appservices/AgenceService.cs
+++ b/Collaborateur_Epa_Back/espacecollab.backend.appservices/AgenceServices.cs
@@ -5,9 +5,9 @@ using espacecollab.backend.infrastructure.sql.dtos;
 
 namespace espacecollab.backend.appservices;
 
-public class AgenceService : GenericsServices<AgenceSqlDto, AgenceApiDto>
+public class AgenceServices : GenericsServices<AgenceSqlDto, AgenceApiDto>
 {
-    public AgenceService(IAgenceRepository agenceRepository)
+    public AgenceServices(IAgenceRepository agenceRepository)
             :base(agenceRepository, AgenceMapper.ToApi, AgenceMapper.ToSql)
     {
     }
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.appservices/BusinessUnitServices.cs b/Collaborateur_Epa_Back/espacecollab.backend.appservices/BusinessUnitServices.cs
new file mode 100644
index 0000000..10e4df5
--- /dev/null
+++ b/Collaborateur_Epa_Back/espacecollab.backend.appservices/BusinessUnitServices.cs
@@ -0,0 +1,19 @@
+using espacecollab.backend.appservices.dtos;
+using espacecollab.backend.appservices.dtos.Mappers;
+using espacecollab.backend.infrastructure.interfaces;
+using espacecollab.backend.infrastructure.sql.dtos;
+
+namespace espacecollab.backend.appservices;
+
+public class BusinessUnitServices : GenericsServices<BusinessUnitSqlDto, BusinessUnitApiDto>
+{
+    private IBusinessUnitRepository BusinessUnitRepository { get; }
+    public BusinessUnitServices(IBusinessUnitRepository businessUnitRepository)
+            :base(businessUnitRepository, BusinessUnitMapper.ToApi, BusinessUnitMapper.ToSql)
+    {}
+
+    public IEnumerable<BusinessUnitApiDto> GetBusinessUnitsByAgence(uint agenceId)
+    {
+        return BusinessUnitRepository.GetBusinessUnitsByAgence((int)agenceId).Select(bu => bu.ToApi());
+    }
+}
\ No newline at end of file
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.interfaces/IBusinessUnitRepository.cs b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.interfaces/IBusinessUnitRepository.cs
index 42a10fd..08700a5 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.interfaces/IBusinessUnitRepository.cs
+++ b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.interfaces/IBusinessUnitRepository.cs
@@ -4,5 +4,6 @@ namespace espacecollab.backend.infrastructure.interfaces
 {
     public interface IBusinessUnitRepository : IGenericRepository<BusinessUnitSqlDto>
     {
+        public IList<BusinessUnitSqlDto> GetBusinessUnitsByAgence(int agenceId);
     }
 }
\ No newline at end of file
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/MainDbContext.cs b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/MainDbContext.cs
index 247426c..9077ed2 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/MainDbContext.cs
+++ b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/MainDbContext.cs
@@ -8,6 +8,8 @@ namespace espacecollab.backend.infrastructure.sql
     {
         private IOptions<SqlOption> SqlSettings { get; }
         private DbSet<CollaborateurSqlDto>? Collaborateur { get; set; }
+        private DbSet<AgenceSqlDto>? Agence { get; set; }
+        private DbSet<BusinessUnitSqlDto>? BusinessUnit { get; set; }
 
         public MainDbContext(IOptions<SqlOption> sqlSettings)
         {
@@ -23,6 +25,8 @@ namespace espacecollab.backend.infrastructure.sql
 
         protected override void OnModelCreating(ModelBuilder modelBuilder)
         {
+            modelBuilder.Entity<BusinessUnitSqlDto>().Property(p => p.Id).UseMySqlIdentityColumn();
+            modelBuilder.Entity<AgenceSqlDto>().Property(p => p.Id).UseMySqlIdentityColumn();
             modelBuilder.Entity<CollaborateurSqlDto>().Property(p=> p.Id).UseMySqlIdentityColumn();
             modelBuilder
                 .Entity<CollaborateurSqlDto>()
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/Repository/BusinessUnitSqlRepository.cs b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/Repository/BusinessUnitSqlRepository.cs
new file mode 100644
index 0000000..34fdd60
--- /dev/null
+++ b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/Repository/BusinessUnitSqlRepository.cs
@@ -0,0 +1,13 @@
+using espacecollab.backend.infrastructure.interfaces;
+using espacecollab.backend.infrastructure.sql.dtos;
+
+namespace espacecollab.backend.infrastructure.sql.Repository;
+
+public class BusinessUnitSqlRepository : GenericSqlRepository<BusinessUnitSqlDto>, IBusinessUnitRepository
+{
+    public BusinessUnitSqlRepository(MainDbContext context) : base(context)
+    {
+    }
+    public IList<BusinessUnitSqlDto> GetBusinessUnitsByAgence(int agenceId)
+            => Context.Set<BusinessUnitSqlDto>().Where(bu => bu.AgenceId == agenceId).ToList();
+}
\ No newline at end of file
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/Repository/GenericSqlRepository.cs b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/Repository/GenericSqlRepository.cs
index 77d9023..384c963 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/Repository/GenericSqlRepository.cs
+++ b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/Repository/GenericSqlRepository.cs
@@ -15,7 +15,7 @@ namespace espacecollab.backend.infrastructure.sql.Repository
 
         public virtual T? Add(T entity)
         {
-            Context.Set<T>().Add(entity);  
+            Context.Set<T>().Add(entity);
             Context.SaveChanges();
             return entity;