diff --git a/STODataBaseImplement/CarTechnicalWork.cs b/STODataBaseImplement/CarTechnicalWork.cs
new file mode 100644
index 0000000..7dd4b97
--- /dev/null
+++ b/STODataBaseImplement/CarTechnicalWork.cs
@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DatabaseImplement
+{
+    public class CarTechnicalWork
+    {
+        public int Id { get; set; }
+        [Required]
+        public int CarId { get; set; }
+        [Required]
+        public int TechnicalWorkId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        public virtual Car Car { get; set; } = new();
+        public virtual TechnicalWork TechnicalWork { get; set; } = new();
+    }
+}
diff --git a/STODataBaseImplement/Client.cs b/STODataBaseImplement/Client.cs
new file mode 100644
index 0000000..4d13408
--- /dev/null
+++ b/STODataBaseImplement/Client.cs
@@ -0,0 +1,59 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using STODataModels;
+using STOContracts.BindingModels;
+using STOContracts.ViewModels;
+
+namespace DatabaseImplement
+{
+    public class Client: IClientModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public string ClientFIO { get; private set; } = string.Empty;
+        [Required]
+        public string Email { get; private set; } = string.Empty;
+        [Required]
+        public string Password { get; private set; }
+        [ForeignKey("ClientId")]
+        public virtual List<Car> Cars { get; private set; } = new();
+        [ForeignKey("ClientId")]
+        public virtual List<Service> Services { get; private set; } = new();
+        public static Client? Create(ClientBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Client()
+            {
+                Id = model.Id,
+                ClientFIO = model.ClientFIO,
+                Email = model.Email,
+                Password = model.Password
+            };
+        }
+        public void Update(ClientBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ClientFIO = model.ClientFIO;
+            Email = model.Email;
+            Password = model.Password;
+        }
+        public ClientViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ClientFIO = ClientFIO,
+            Email = Email,
+            Password = Password
+        };
+    }
+}
diff --git a/STODataBaseImplement/ClientStorage.cs b/STODataBaseImplement/ClientStorage.cs
new file mode 100644
index 0000000..53ff0e3
--- /dev/null
+++ b/STODataBaseImplement/ClientStorage.cs
@@ -0,0 +1,83 @@
+using STOContracts.BindingModels;
+using STOContracts.SearchModels;
+using STOContracts.ViewModels;
+using STODatabaseImplement;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DatabaseImplement
+{
+    public class ClientStorage
+    {
+        public List<ClientViewModel> GetFullList()
+        {
+            using var context = new STODatabase();
+            return context.Clients.Select(x => x.GetViewModel).ToList();
+        }
+
+        public List<ClientViewModel> GetFilteredList(ClientSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ClientFIO))
+            {
+                return new();
+            }
+            using var context = new STODatabase();
+            return context.Clients.Where(x => x.ClientFIO.Contains(model.ClientFIO)).Select(x => x.GetViewModel).ToList();
+        }
+
+        public ClientViewModel? GetElement(ClientSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Email) && string.IsNullOrEmpty(model.Password) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new STODatabase();
+            return context.Clients.FirstOrDefault(x =>
+            (!string.IsNullOrEmpty(model.Email) && x.Email == model.Email && !string.IsNullOrEmpty(model.Password) && x.Password == model.Password) ||
+            (model.Id.HasValue && x.Id == model.Id))
+                ?.GetViewModel;
+        }
+
+        public ClientViewModel? Insert(ClientBindingModel model)
+        {
+            var newComponent = Client.Create(model);
+            if (newComponent == null)
+            {
+                return null;
+            }
+            using var context = new STODatabase();
+            context.Clients.Add(newComponent);
+            context.SaveChanges();
+            return newComponent.GetViewModel;
+        }
+
+        public ClientViewModel? Update(ClientBindingModel model)
+        {
+            using var context = new STODatabase();
+            var component = context.Clients.FirstOrDefault(x => x.Id == model.Id);
+            if (component == null)
+            {
+                return null;
+            }
+            component.Update(model);
+            context.SaveChanges();
+            return component.GetViewModel;
+        }
+
+        public ClientViewModel? Delete(ClientBindingModel model)
+        {
+            using var context = new STODatabase();
+            var element = context.Clients.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Clients.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}
diff --git a/STODataBaseImplement/DatabaseImplement.csproj b/STODataBaseImplement/DatabaseImplement.csproj
new file mode 100644
index 0000000..95189d8
--- /dev/null
+++ b/STODataBaseImplement/DatabaseImplement.csproj
@@ -0,0 +1,24 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="6.0.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="6.0.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="6.0.0">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\STOContracts\STOContracts\STOContracts.csproj" />
+    <ProjectReference Include="..\..\STODataModels\STODataModels\STODataModels.csproj" />
+    <ProjectReference Include="..\..\STOBusinessLogic\STOBusinessLogic\STOBusinessLogic.csproj" />
+  </ItemGroup>
+
+</Project>
diff --git a/STODataBaseImplement/Service.cs b/STODataBaseImplement/Service.cs
new file mode 100644
index 0000000..21d9bbe
--- /dev/null
+++ b/STODataBaseImplement/Service.cs
@@ -0,0 +1,58 @@
+using STOContracts.BindingModels;
+using STOContracts.ViewModels;
+using STODatabaseImplement;
+using STODataModels;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DatabaseImplement
+{
+    public class Service : IServiceModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public string Name {get; private set;} = string.Empty;
+
+        [Required]
+        public int CarId { get; private set; }
+        public virtual Car Car { get; set; } = new();
+
+        public int ClientId { get; private set; }
+        public virtual Client Client { get; set; } = new();
+
+        public static Service? Create(STODatabase context, ServiceBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Service()
+            {
+                CarId = model.CarId,
+                Car = context.Cars.First(x => x.Id == model.CarId),
+                ClientId = model.ClientId,
+                Client = context.Clients.First(x => x.Id == model.ClientId),
+                Id = model.Id,
+                Name = model.Name
+            };
+        }
+        public void Update(ServiceBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Name = model.Name;
+        }
+        public ServiceViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Name = Name,
+            CarId = CarId
+        };
+    }
+}