diff --git a/library/Director/Objects/IcingaService.php b/library/Director/Objects/IcingaService.php
index e97a709f..78cde10c 100644
--- a/library/Director/Objects/IcingaService.php
+++ b/library/Director/Objects/IcingaService.php
@@ -117,6 +117,9 @@ class IcingaService extends IcingaObject implements ExportInterface
         'apply_for'
     ];
 
+    /** @var ServiceGroupMembershipResolver */
+    protected $servicegroupMembershipResolver;
+
     /**
      * @return IcingaCommand
      * @throws IcingaException
@@ -730,4 +733,30 @@ class IcingaService extends IcingaObject implements ExportInterface
             );
         }
     }
+
+    protected function notifyResolvers()
+    {
+        $resolver = $this->getServiceGroupMembershipResolver();
+        $resolver->addObject($this);
+        $resolver->refreshDb();
+
+        return $this;
+    }
+
+    protected function getServiceGroupMembershipResolver()
+    {
+        if ($this->servicegroupMembershipResolver === null) {
+            $this->servicegroupMembershipResolver = new ServiceGroupMembershipResolver(
+                $this->getConnection()
+            );
+        }
+
+        return $this->servicegroupMembershipResolver;
+    }
+
+    public function setServiceGroupMembershipResolver(ServiceGroupMembershipResolver $resolver)
+    {
+        $this->servicegroupMembershipResolver = $resolver;
+        return $this;
+    }
 }
diff --git a/library/Director/Objects/IcingaServiceGroup.php b/library/Director/Objects/IcingaServiceGroup.php
index 937e5b5e..ae43ff32 100644
--- a/library/Director/Objects/IcingaServiceGroup.php
+++ b/library/Director/Objects/IcingaServiceGroup.php
@@ -6,8 +6,37 @@ class IcingaServiceGroup extends IcingaObjectGroup
 {
     protected $table = 'icinga_servicegroup';
 
+    /** @var ServiceGroupMembershipResolver */
+    protected $servicegroupMembershipResolver;
+
     public function supportsAssignments()
     {
         return true;
     }
+
+    protected function getServiceGroupMembershipResolver()
+    {
+        if ($this->servicegroupMembershipResolver === null) {
+            $this->servicegroupMembershipResolver = new ServiceGroupMembershipResolver(
+                $this->getConnection()
+            );
+        }
+
+        return $this->servicegroupMembershipResolver;
+    }
+
+    public function setServiceGroupMembershipResolver(ServiceGroupMembershipResolver $resolver)
+    {
+        $this->servicegroupMembershipResolver = $resolver;
+        return $this;
+    }
+
+    protected function notifyResolvers()
+    {
+        $resolver = $this->getServiceGroupMembershipResolver();
+        $resolver->addGroup($this);
+        $resolver->refreshDb();
+
+        return $this;
+    }
 }
diff --git a/library/Director/Objects/ServiceGroupMembershipResolver.php b/library/Director/Objects/ServiceGroupMembershipResolver.php
new file mode 100644
index 00000000..4649212d
--- /dev/null
+++ b/library/Director/Objects/ServiceGroupMembershipResolver.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace Icinga\Module\Director\Objects;
+
+class ServiceGroupMembershipResolver extends GroupMembershipResolver
+{
+    protected $type = 'service';
+}