diff --git a/src/servala/core/models/service.py b/src/servala/core/models/service.py
index 4cd719b..5654b9e 100644
--- a/src/servala/core/models/service.py
+++ b/src/servala/core/models/service.py
@@ -52,11 +52,18 @@ class ControlPlane(models.Model):
     # TODO: schema
     api_credentials = models.JSONField(verbose_name=_("API credentials"))
 
+    cloud_provider = models.ForeignKey(
+        to="CloudProvider",
+        on_delete=models.PROTECT,
+        related_name="control_planes",
+        verbose_name=_("Cloud provider"),
+    )
+
     def __str__(self):
         return self.name
 
 
-class ServiceProvider(models.Model):
+class CloudProvider(models.Model):
     name = models.CharField(max_length=100, verbose_name=_("Name"))
     description = models.TextField(blank=True, verbose_name=_("Description"))
     logo = models.ImageField(
@@ -114,8 +121,8 @@ class ServiceOffering(models.Model):
         related_name="offerings",
         verbose_name=_("Services"),
     )
-    providers = models.ManyToManyField(
-        to="ServiceProvider",
+    provider = models.ForeignKey(
+        to="CloudProvider",
         related_name="offerings",
         verbose_name=_("Providers"),
     )