diff --git a/docs/docs/apis/proto/system.md b/docs/docs/apis/proto/system.md
index 6b0124016c..4005408460 100644
--- a/docs/docs/apis/proto/system.md
+++ b/docs/docs/apis/proto/system.md
@@ -96,6 +96,19 @@ This might take some time
     DELETE: /instances/{instance_id}
 
 
+### ListIAMMembers
+
+> **rpc** ListIAMMembers([ListIAMMembersRequest](#listiammembersrequest))
+[ListIAMMembersResponse](#listiammembersresponse)
+
+Returns all instance members matching the request
+all queries need to match (ANDed)
+
+
+
+    POST: /instances/{instance_id}/members/_search
+
+
 ### ExistsDomain
 
 > **rpc** ExistsDomain([ExistsDomainRequest](#existsdomainrequest))
@@ -614,6 +627,31 @@ This is an empty request
 
 
 
+### ListIAMMembersRequest
+
+
+
+| Field | Type | Description | Validation |
+| ----- | ---- | ----------- | ----------- |
+| query |  zitadel.v1.ListQuery | - |  |
+| instance_id |  string | - |  |
+| queries | repeated zitadel.member.v1.SearchQuery | - |  |
+
+
+
+
+### ListIAMMembersResponse
+
+
+
+| Field | Type | Description | Validation |
+| ----- | ---- | ----------- | ----------- |
+| details |  zitadel.v1.ListDetails | - |  |
+| result | repeated zitadel.member.v1.Member | - |  |
+
+
+
+
 ### ListInstancesRequest
 
 
diff --git a/internal/api/grpc/system/instance.go b/internal/api/grpc/system/instance.go
index 8d62424b15..822c618bde 100644
--- a/internal/api/grpc/system/instance.go
+++ b/internal/api/grpc/system/instance.go
@@ -5,6 +5,7 @@ import (
 
 	"github.com/zitadel/zitadel/internal/api/authz"
 	instance_grpc "github.com/zitadel/zitadel/internal/api/grpc/instance"
+	"github.com/zitadel/zitadel/internal/api/grpc/member"
 	"github.com/zitadel/zitadel/internal/api/grpc/object"
 	"github.com/zitadel/zitadel/internal/query"
 	object_pb "github.com/zitadel/zitadel/pkg/grpc/object"
@@ -95,6 +96,23 @@ func (s *Server) RemoveInstance(ctx context.Context, req *system_pb.RemoveInstan
 	}, nil
 }
 
+func (s *Server) ListIAMMembers(ctx context.Context, req *system_pb.ListIAMMembersRequest) (*system_pb.ListIAMMembersResponse, error) {
+	ctx = authz.WithInstanceID(ctx, req.InstanceId)
+	queries, err := ListIAMMembersRequestToQuery(req)
+	if err != nil {
+		return nil, err
+	}
+	res, err := s.query.IAMMembers(ctx, queries, false)
+	if err != nil {
+		return nil, err
+	}
+	return &system_pb.ListIAMMembersResponse{
+		Details: object.ToListDetails(res.Count, res.Sequence, res.Timestamp),
+		//TODO: resource owner of user of the member instead of the membership resource owner
+		Result: member.MembersToPb("", res.Members),
+	}, nil
+}
+
 func (s *Server) ExistsDomain(ctx context.Context, req *system_pb.ExistsDomainRequest) (*system_pb.ExistsDomainResponse, error) {
 	domainQuery, err := query.NewInstanceDomainDomainSearchQuery(query.TextEqualsIgnoreCase, req.Domain)
 	if err != nil {
diff --git a/internal/api/grpc/system/instance_converter.go b/internal/api/grpc/system/instance_converter.go
index 9ef1c343df..2e1a4933bd 100644
--- a/internal/api/grpc/system/instance_converter.go
+++ b/internal/api/grpc/system/instance_converter.go
@@ -8,6 +8,7 @@ import (
 
 	"github.com/zitadel/zitadel/internal/api/grpc/authn"
 	instance_grpc "github.com/zitadel/zitadel/internal/api/grpc/instance"
+	member_grpc "github.com/zitadel/zitadel/internal/api/grpc/member"
 	"github.com/zitadel/zitadel/internal/api/grpc/object"
 	z_oidc "github.com/zitadel/zitadel/internal/api/oidc"
 	"github.com/zitadel/zitadel/internal/command"
@@ -260,3 +261,22 @@ func fieldNameToInstanceDomainColumn(fieldName instance_pb.DomainFieldName) quer
 		return query.Column{}
 	}
 }
+
+func ListIAMMembersRequestToQuery(req *system_pb.ListIAMMembersRequest) (*query.IAMMembersQuery, error) {
+	offset, limit, asc := object.ListQueryToModel(req.Query)
+	queries, err := member_grpc.MemberQueriesToQuery(req.Queries)
+	if err != nil {
+		return nil, err
+	}
+	return &query.IAMMembersQuery{
+		MembersQuery: query.MembersQuery{
+			SearchRequest: query.SearchRequest{
+				Offset: offset,
+				Limit:  limit,
+				Asc:    asc,
+				// SortingColumn: model.IAMMemberSearchKey, //TOOD: not implemented in proto
+			},
+			Queries: queries,
+		},
+	}, nil
+}
diff --git a/proto/zitadel/system.proto b/proto/zitadel/system.proto
index 7b1f7d52c3..9b8c3edc6e 100644
--- a/proto/zitadel/system.proto
+++ b/proto/zitadel/system.proto
@@ -3,6 +3,7 @@ syntax = "proto3";
 import "zitadel/object.proto";
 import "zitadel/options.proto";
 import "zitadel/instance.proto";
+import "zitadel/member.proto";
 import "zitadel/auth_n_key.proto";
 
 import "google/api/annotations.proto";
@@ -173,6 +174,19 @@ service SystemService {
     };
   }
 
+  //Returns all instance members matching the request
+  // all queries need to match (ANDed)
+  rpc ListIAMMembers(ListIAMMembersRequest) returns (ListIAMMembersResponse) {
+    option (google.api.http) = {
+      post: "/instances/{instance_id}/members/_search";
+      body: "*";
+    };
+
+    option (zitadel.v1.auth_option) = {
+      permission: "authenticated";
+    };
+  }
+
   // Checks if a domain exists
   rpc ExistsDomain(ExistsDomainRequest) returns (ExistsDomainResponse) {
     option (google.api.http) = {
@@ -491,6 +505,17 @@ message RemoveInstanceResponse {
   zitadel.v1.ObjectDetails details = 1;
 }
 
+message ListIAMMembersRequest {
+  zitadel.v1.ListQuery query = 1;
+  string instance_id = 2;
+  repeated zitadel.member.v1.SearchQuery queries = 3;
+}
+
+message ListIAMMembersResponse {
+  zitadel.v1.ListDetails details = 1;
+  repeated zitadel.member.v1.Member result = 2;
+}
+
 message GetUsageRequest {
   string instance_id = 1 [(validate.rules).string = {min_len: 1, max_len: 200}];
 }