diff --git a/FoodsharingSiegen.Server/Data/Service/ProspectService.cs b/FoodsharingSiegen.Server/Data/Service/ProspectService.cs
new file mode 100644
index 0000000..140ceb3
--- /dev/null
+++ b/FoodsharingSiegen.Server/Data/Service/ProspectService.cs
@@ -0,0 +1,109 @@
+using FoodsharingSiegen.Contracts;
+using FoodsharingSiegen.Contracts.Entity;
+using Microsoft.EntityFrameworkCore;
+
+namespace FoodsharingSiegen.Server.Data.Service
+{
+    /// <summary>
+    /// The prospect service class (a. beging, 01.04.2022)
+    /// </summary>
+    /// <seealso cref="ServiceBase"/>
+    public class ProspectService : ServiceBase
+    {
+        #region Setup/Teardown
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ProspectService"/> class
+        /// </summary>
+        /// <param name="context">The context</param>
+        public ProspectService(FsContext context) : base(context) { }
+
+        #endregion
+
+        #region Public Method AddInteraction
+
+        /// <summary>
+        /// Adds the interaction using the specified interaction (a. beging, 02.04.2022)
+        /// </summary>
+        /// <param name="interaction">The interaction</param>
+        /// <returns>A task containing an operation result of interaction</returns>
+        public async Task<OperationResult<Interaction>> AddInteraction(Interaction interaction)
+        {
+            try
+            {
+                var targetProspect = await Context.Prospects.Include(x => x.Interactions).FirstOrDefaultAsync(x => x.Id == interaction.ProspectId);
+                if (targetProspect == null) return new OperationResult<Interaction>(new Exception("Invalid prospect id"));
+
+                var dummyUser = Context.Users.First().Id;
+                
+                interaction.ProspectId = Guid.Empty;
+                interaction.UserId = dummyUser;
+                
+                targetProspect.Interactions.Add(interaction);
+                
+                await Context.SaveChangesAsync();
+                
+                return new OperationResult<Interaction>(interaction);
+            }
+            catch (Exception e)
+            {
+                return new OperationResult<Interaction>(e);
+            }
+        }
+
+        #endregion
+
+        #region Public Method AddProspectAsync
+
+        /// <summary>
+        /// Adds the prospect using the specified prospect (a. beging, 01.04.2022)
+        /// </summary>
+        /// <param name="prospect">The prospect</param>
+        /// <returns>A task containing an operation result of prospect</returns>
+        public async Task<OperationResult<Prospect>> AddProspectAsync(Prospect? prospect)
+        {
+            try
+            {
+                if (prospect == null) return new OperationResult<Prospect>(new Exception("Cannot be empty"));
+
+                prospect.Created = DateTime.UtcNow;
+                prospect.Id = Guid.Empty;
+
+                await Context.Prospects.AddAsync(prospect);
+                var saveR = await Context.SaveChangesAsync();
+
+                if (saveR > 0)
+                    return new OperationResult<Prospect>(prospect);
+            
+                return new OperationResult<Prospect>(new Exception("Couldn't add prospect"));
+            }
+            catch (Exception e)
+            {
+                return new OperationResult<Prospect>(e);
+            }
+        }
+
+        #endregion
+
+        #region Public Method GetProspectsAsync
+
+        /// <summary>
+        /// Gets the users (a. beging, 01.04.2022)
+        /// </summary>
+        /// <returns>A task containing an operation result of list prospect</returns>
+        public async Task<OperationResult<List<Prospect>>> GetProspectsAsync()
+        {
+            try
+            {
+                var prospects = await Context.Prospects.Include(x => x.Interactions).ThenInclude(x => x.User).OrderBy(x => x.Name).ToListAsync();
+                return new OperationResult<List<Prospect>>(prospects);
+            }
+            catch (Exception e)
+            {
+                return new OperationResult<List<Prospect>>(e);
+            }
+        }
+
+        #endregion
+    }
+}
\ No newline at end of file
diff --git a/FoodsharingSiegen.Server/Program.cs b/FoodsharingSiegen.Server/Program.cs
index 39efe40..8639da5 100644
--- a/FoodsharingSiegen.Server/Program.cs
+++ b/FoodsharingSiegen.Server/Program.cs
@@ -17,6 +17,7 @@ builder.Services.AddDbContextFactory<FsContext>(opt =>
 // DI
 builder.Services.AddScoped<FsContext>();
 builder.Services.AddScoped<UserService>();
+builder.Services.AddScoped<ProspectService>();
 
 builder.Services.AddBlazorise(options => { options.ChangeTextOnKeyPress = true; }).AddMaterialProviders().AddMaterialIcons();