diff --git a/core/apps/counterparty/serializers/counterparty.py b/core/apps/counterparty/serializers/counterparty.py
index a49ff40..351ec43 100644
--- a/core/apps/counterparty/serializers/counterparty.py
+++ b/core/apps/counterparty/serializers/counterparty.py
@@ -11,4 +11,12 @@ class CounterpartySerializer(serializers.ModelSerializer):
         model = Counterparty
         fields = [
             'id', 'name', 'type', 'status', 'description', 'start_date', 'person'
+        ]
+
+
+class CounterpartyListPartySerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Counterparty
+        fields = [
+            'id', 'name',
         ]
\ No newline at end of file
diff --git a/core/apps/orders/serializers/party.py b/core/apps/orders/serializers/party.py
index ac59013..0c85861 100644
--- a/core/apps/orders/serializers/party.py
+++ b/core/apps/orders/serializers/party.py
@@ -5,6 +5,7 @@ from rest_framework import serializers
 from core.apps.orders.models import Party, PartyAmount, Order, DeletedParty
 from core.apps.orders.serializers.order import MultipleOrderAddSerializer, OrderListSerializer
 from core.apps.accounts.models import User
+from core.apps.counterparty.serializers.counterparty import CounterpartyListPartySerializer
 
 
 class PartyCreateSerializer(serializers.Serializer):
@@ -81,27 +82,50 @@ class PartyAmountSerializer(serializers.ModelSerializer):
 class PartyDetailSerializer(serializers.ModelSerializer):
     orders = OrderListSerializer(many=True)
     party_amount = PartyAmountSerializer()
+    mediator = serializers.SerializerMethodField(method_name='get_mediator')
 
     class Meta:
         model = Party
         fields = [
             'id', 'number', 'delivery_date', 'closed_date', 'order_date', 'payment_date', 'status',
             'payment_status', 'process', 'confirmation', 'comment', 'audit', 'audit_comment',
-            'orders', 'party_amount'
+            'orders', 'party_amount', 'mediator',
         ]
 
+    def get_mediator(self, obj):
+        return {
+            'id': obj.mediator.id,
+            'full_name': obj.mediator.full_name
+        }
+
 
 class PartyListSerializer(serializers.ModelSerializer):
     party_amount = PartyAmountSerializer()
+    mediator = serializers.SerializerMethodField(method_name='get_mediator')
+    counterparty = serializers.SerializerMethodField(method_name='get_counterparty')
 
     class Meta:
         model = Party
         fields = [
             'id','number', 'delivery_date', 'closed_date', 'order_date', 'payment_date', 'status',
             'payment_status', 'process', 'confirmation', 'comment', 'audit', 'audit_comment',
-            'party_amount'
+            'party_amount', 'mediator', 'counterparty'
         ]
 
+    def get_mediator(self, obj):
+        return {
+            'id': obj.mediator.id,
+            'full_name': obj.mediator.full_name
+        }
+    
+    def get_counterparty(self, obj):
+        counterparties = obj.orders.values("counterparty__id", "counterparty__name").distinct()
+        counterparties = [
+            {"id": c["counterparty__id"], "name": c["counterparty__name"]}
+            for c in counterparties
+        ]
+        return CounterpartyListPartySerializer(counterparties, many=True).data
+
 
 class DeletedPartyCreateSerializer(serializers.Serializer):
     comment = serializers.CharField(required=False)