diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -2849,6 +2849,7 @@
     'PhabricatorProjectsEditEngineExtension' => 'applications/project/engineextension/PhabricatorProjectsEditEngineExtension.php',
     'PhabricatorProjectsEditField' => 'applications/transactions/editfield/PhabricatorProjectsEditField.php',
     'PhabricatorProjectsPolicyRule' => 'applications/project/policyrule/PhabricatorProjectsPolicyRule.php',
+    'PhabricatorProjectsSearchEngineAttachment' => 'applications/project/engineextension/PhabricatorProjectsSearchEngineAttachment.php',
     'PhabricatorProjectsSearchEngineExtension' => 'applications/project/engineextension/PhabricatorProjectsSearchEngineExtension.php',
     'PhabricatorProtocolAdapter' => 'infrastructure/daemon/bot/adapter/PhabricatorProtocolAdapter.php',
     'PhabricatorPygmentSetupCheck' => 'applications/config/check/PhabricatorPygmentSetupCheck.php',
@@ -7128,6 +7129,7 @@
     'PhabricatorProjectsEditEngineExtension' => 'PhabricatorEditEngineExtension',
     'PhabricatorProjectsEditField' => 'PhabricatorTokenizerEditField',
     'PhabricatorProjectsPolicyRule' => 'PhabricatorPolicyRule',
+    'PhabricatorProjectsSearchEngineAttachment' => 'PhabricatorSearchEngineAttachment',
     'PhabricatorProjectsSearchEngineExtension' => 'PhabricatorSearchEngineExtension',
     'PhabricatorProtocolAdapter' => 'Phobject',
     'PhabricatorPygmentSetupCheck' => 'PhabricatorSetupCheck',
diff --git a/src/applications/project/engineextension/PhabricatorProjectsSearchEngineAttachment.php b/src/applications/project/engineextension/PhabricatorProjectsSearchEngineAttachment.php
new file mode 100644
--- /dev/null
+++ b/src/applications/project/engineextension/PhabricatorProjectsSearchEngineAttachment.php
@@ -0,0 +1,43 @@
+<?php
+
+final class PhabricatorProjectsSearchEngineAttachment
+  extends PhabricatorSearchEngineAttachment {
+
+  public function getAttachmentName() {
+    return pht('Projects');
+  }
+
+  public function getAttachmentDescription() {
+    return pht('Get information about projects.');
+  }
+
+  public function loadAttachmentData(array $objects, $spec) {
+    $object_phids = mpull($objects, 'getPHID');
+
+    $projects_query = id(new PhabricatorEdgeQuery())
+      ->withSourcePHIDs($object_phids)
+      ->withEdgeTypes(
+        array(
+          PhabricatorProjectObjectHasProjectEdgeType::EDGECONST,
+        ));
+    $projects_query->execute();
+
+    return array(
+      'projects.query' => $projects_query,
+    );
+  }
+
+  public function getAttachmentForObject($object, $data, $spec) {
+    $projects_query = $data['projects.query'];
+    $object_phid = $object->getPHID();
+
+    $project_phids = $projects_query->getDestinationPHIDs(
+      array($object_phid),
+      array(PhabricatorProjectObjectHasProjectEdgeType::EDGECONST));
+
+    return array(
+      'projectPHIDs' => array_values($project_phids),
+    );
+  }
+
+}
diff --git a/src/applications/project/engineextension/PhabricatorProjectsSearchEngineExtension.php b/src/applications/project/engineextension/PhabricatorProjectsSearchEngineExtension.php
--- a/src/applications/project/engineextension/PhabricatorProjectsSearchEngineExtension.php
+++ b/src/applications/project/engineextension/PhabricatorProjectsSearchEngineExtension.php
@@ -49,5 +49,12 @@
     return $fields;
   }
 
+  public function getSearchAttachments() {
+    return array(
+      id(new PhabricatorProjectsSearchEngineAttachment())
+        ->setAttachmentKey('projects'),
+    );
+  }
+
 
 }