diff --git a/internal/api/grpc/admin/iam_member.go b/internal/api/grpc/admin/iam_member.go
index edd4dd0ce6..8f9b11ce2a 100644
--- a/internal/api/grpc/admin/iam_member.go
+++ b/internal/api/grpc/admin/iam_member.go
@@ -28,8 +28,7 @@ func (s *Server) ListIAMMembers(ctx context.Context, req *admin_pb.ListIAMMember
 	}
 	return &admin_pb.ListIAMMembersResponse{
 		Details: object.ToListDetails(res.Count, res.Sequence, res.LastRun),
-		//TODO: resource owner of user of the member instead of the membership resource owner
-		Result: member.MembersToPb("", res.Members),
+		Result:  member.MembersToPb("", res.Members),
 	}, nil
 }
 
diff --git a/internal/api/grpc/admin/iam_member_converter.go b/internal/api/grpc/admin/iam_member_converter.go
index 07e91d21b3..2fe75214fd 100644
--- a/internal/api/grpc/admin/iam_member_converter.go
+++ b/internal/api/grpc/admin/iam_member_converter.go
@@ -6,6 +6,7 @@ import (
 	"github.com/zitadel/zitadel/internal/domain"
 	"github.com/zitadel/zitadel/internal/query"
 	admin_pb "github.com/zitadel/zitadel/pkg/grpc/admin"
+	member_pb "github.com/zitadel/zitadel/pkg/grpc/member"
 )
 
 func AddIAMMemberToDomain(req *admin_pb.AddIAMMemberRequest) *domain.Member {
@@ -31,12 +32,29 @@ func ListIAMMembersRequestToQuery(req *admin_pb.ListIAMMembersRequest) (*query.I
 	return &query.IAMMembersQuery{
 		MembersQuery: query.MembersQuery{
 			SearchRequest: query.SearchRequest{
-				Offset: offset,
-				Limit:  limit,
-				Asc:    asc,
-				// SortingColumn: model.IAMMemberSearchKey, //TOOD: not implemented in proto
+				Offset:        offset,
+				Limit:         limit,
+				Asc:           asc,
+				SortingColumn: fieldNameToMemberColumn(req.SortingColumn),
 			},
 			Queries: queries,
 		},
 	}, nil
 }
+
+func fieldNameToMemberColumn(fieldName member_pb.MemberFieldColumnName) query.Column {
+	switch fieldName {
+	case member_pb.MemberFieldColumnName_MEMBER_FIELD_NAME_UNSPECIFIED:
+		return query.InstanceMemberInstanceID
+	case member_pb.MemberFieldColumnName_MEMBER_FIELD_NAME_USER_ID:
+		return query.InstanceMemberUserID
+	case member_pb.MemberFieldColumnName_MEMBER_FIELD_NAME_CREATION_DATE:
+		return query.InstanceMemberCreationDate
+	case member_pb.MemberFieldColumnName_MEMBER_FIELD_NAME_CHANGE_DATE:
+		return query.InstanceMemberChangeDate
+	case member_pb.MemberFieldColumnName_MEMBER_FIELD_NAME_USER_RESOURCE_OWNER:
+		return query.InstanceMemberResourceOwner
+	default:
+		return query.Column{}
+	}
+}
diff --git a/internal/api/grpc/system/instance_converter.go b/internal/api/grpc/system/instance_converter.go
index 551079aec5..6826cb5694 100644
--- a/internal/api/grpc/system/instance_converter.go
+++ b/internal/api/grpc/system/instance_converter.go
@@ -15,6 +15,7 @@ import (
 	"github.com/zitadel/zitadel/internal/domain"
 	"github.com/zitadel/zitadel/internal/query"
 	instance_pb "github.com/zitadel/zitadel/pkg/grpc/instance"
+	member_pb "github.com/zitadel/zitadel/pkg/grpc/member"
 	system_pb "github.com/zitadel/zitadel/pkg/grpc/system"
 )
 
@@ -271,12 +272,29 @@ func ListIAMMembersRequestToQuery(req *system_pb.ListIAMMembersRequest) (*query.
 	return &query.IAMMembersQuery{
 		MembersQuery: query.MembersQuery{
 			SearchRequest: query.SearchRequest{
-				Offset: offset,
-				Limit:  limit,
-				Asc:    asc,
-				// SortingColumn: model.IAMMemberSearchKey, //TOOD: not implemented in proto
+				Offset:        offset,
+				Limit:         limit,
+				Asc:           asc,
+				SortingColumn: fieldNameToMemberColumn(req.SortingColumn),
 			},
 			Queries: queries,
 		},
 	}, nil
 }
+
+func fieldNameToMemberColumn(fieldName member_pb.MemberFieldColumnName) query.Column {
+	switch fieldName {
+	case member_pb.MemberFieldColumnName_MEMBER_FIELD_NAME_UNSPECIFIED:
+		return query.InstanceMemberInstanceID
+	case member_pb.MemberFieldColumnName_MEMBER_FIELD_NAME_USER_ID:
+		return query.InstanceMemberUserID
+	case member_pb.MemberFieldColumnName_MEMBER_FIELD_NAME_CREATION_DATE:
+		return query.InstanceMemberCreationDate
+	case member_pb.MemberFieldColumnName_MEMBER_FIELD_NAME_CHANGE_DATE:
+		return query.InstanceMemberChangeDate
+	case member_pb.MemberFieldColumnName_MEMBER_FIELD_NAME_USER_RESOURCE_OWNER:
+		return query.InstanceMemberResourceOwner
+	default:
+		return query.Column{}
+	}
+}
diff --git a/proto/zitadel/admin.proto b/proto/zitadel/admin.proto
index 020fa60e97..763633a810 100644
--- a/proto/zitadel/admin.proto
+++ b/proto/zitadel/admin.proto
@@ -8782,6 +8782,7 @@ message ListIAMMembersRequest {
     zitadel.v1.ListQuery query = 1;
     //criteria the client is looking for
     repeated zitadel.member.v1.SearchQuery queries = 2;
+    zitadel.member.v1.MemberFieldColumnName sorting_column = 3;
 }
 
 message ListIAMMembersResponse {
diff --git a/proto/zitadel/member.proto b/proto/zitadel/member.proto
index c3351a99d3..f4ec080433 100644
--- a/proto/zitadel/member.proto
+++ b/proto/zitadel/member.proto
@@ -143,3 +143,11 @@ message UserIDQuery {
         }
     ];
 }
+
+enum MemberFieldColumnName {
+    MEMBER_FIELD_NAME_UNSPECIFIED = 0;
+    MEMBER_FIELD_NAME_USER_ID=1;
+    MEMBER_FIELD_NAME_CREATION_DATE = 2;
+    MEMBER_FIELD_NAME_CHANGE_DATE=3;
+    MEMBER_FIELD_NAME_USER_RESOURCE_OWNER=4;
+}
\ No newline at end of file
diff --git a/proto/zitadel/system.proto b/proto/zitadel/system.proto
index 8e199aa505..b5852b1fec 100644
--- a/proto/zitadel/system.proto
+++ b/proto/zitadel/system.proto
@@ -689,6 +689,7 @@ message ListIAMMembersRequest {
   zitadel.v1.ListQuery query = 1;
   string instance_id = 2;
   repeated zitadel.member.v1.SearchQuery queries = 3;
+  zitadel.member.v1.MemberFieldColumnName sorting_column = 4;
 }
 
 message ListIAMMembersResponse {