diff --git a/apps/pos_device/pos/api/v1/serializers/organization.py b/apps/pos_device/pos/api/v1/serializers/organization.py
new file mode 100644
index 0000000..b4da84d
--- /dev/null
+++ b/apps/pos_device/pos/api/v1/serializers/organization.py
@@ -0,0 +1,8 @@
+from apps.pos_device import models as pos_models
+from rest_framework import serializers
+
+
+class OrganizationSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = pos_models.Organization
+        fields = ['id', 'name', 'en_name'] 
\ No newline at end of file
diff --git a/apps/pos_device/pos/api/v1/serializers/user.py b/apps/pos_device/pos/api/v1/serializers/user.py
new file mode 100644
index 0000000..35985e7
--- /dev/null
+++ b/apps/pos_device/pos/api/v1/serializers/user.py
@@ -0,0 +1,8 @@
+from django.contrib.auth.models import User as pos_models
+from rest_framework import serializers
+
+
+class UserSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = pos_models.User
+        fields = ['id', 'username', 'first_name', 'last_name', 'email', 'mobile', 'phone', 'national_code']
\ No newline at end of file
diff --git a/apps/pos_device/pos/api/v1/viewsets/device.py b/apps/pos_device/pos/api/v1/viewsets/device.py
index 497301f..830664a 100644
--- a/apps/pos_device/pos/api/v1/viewsets/device.py
+++ b/apps/pos_device/pos/api/v1/viewsets/device.py
@@ -1,4 +1,4 @@
-from apps.pos_device.pos.api.v1.serializers.device import DeviceSerializer
+from apps.pos_device.pos.api.v1.serializers.device import DeviceSerializer , OrganizationSerializer , UserSerializer
 from apps.authentication.services.service import get_users_of_organization
 from apps.pos_device.mixins.pos_device_mixin import POSDeviceMixin
 from apps.pos_device import models as pos_models
@@ -78,6 +78,11 @@ class POSDeviceViewSet(viewsets.ModelViewSet, POSDeviceMixin):
                     latitude=headers_data['device-lot'],
                     longitude=headers_data['device-lng'],
                 )
+                
+                org_serializer = OrganizationSerializer(device_owner_org) 
+                users_data = get_users_of_organization(device_owner_org)  
+                users_serializer = UserSerializer(users_data, many=True)
+
                 return Response({
                     "message": "login success - session activated",
                     "device_identity": device.device_identity,
@@ -85,8 +90,8 @@ class POSDeviceViewSet(viewsets.ModelViewSet, POSDeviceMixin):
                     "password": device.password,
                     "provider": organization.name,
                     "provider_tell": '0214021',
-                    "device_owner": device_owner_org,
-                    "device_owner_users": get_users_of_organization(device_owner_org)
+                    "device_owner": org_serializer.data,
+                    "device_owner_users": users_serializer.data
                 }, status=status.HTTP_200_OK)
 
             return Response({