diff --git a/app/Http/Controllers/Apis/Protected/Summit/OAuth2SummitMembersApiController.php b/app/Http/Controllers/Apis/Protected/Summit/OAuth2SummitMembersApiController.php
index c9a04424..6465f7b4 100644
--- a/app/Http/Controllers/Apis/Protected/Summit/OAuth2SummitMembersApiController.php
+++ b/app/Http/Controllers/Apis/Protected/Summit/OAuth2SummitMembersApiController.php
@@ -11,6 +11,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  **/
+
+use App\Http\Utils\CurrentAffiliationsCellFormatter;
 use App\Http\Utils\EpochCellFormatter;
 use App\Http\Utils\PagingConstants;
 use Illuminate\Support\Facades\Log;
@@ -548,6 +550,29 @@ final class OAuth2SummitMembersApiController extends OAuth2ProtectedController
     public function getAllBySummitCSV($summit_id){
         $values = Input::all();
 
+        $allowed_columns = [
+            "id",
+            "created",
+            "last_edited",
+            "first_name",
+            "last_name",
+            "email",
+            "country",
+            "gender",
+            "github_user",
+            "bio",
+            "linked_in",
+            "irc",
+            "twitter",
+            "state",
+            "country",
+            "active",
+            "email_verified",
+            "pic",
+            "affiliations",
+            "groups"
+        ];
+
         $rules = [
         ];
 
@@ -635,7 +660,18 @@ final class OAuth2SummitMembersApiController extends OAuth2ProtectedController
             $relations = Request::input('relations', '');
             $relations = !empty($relations) ? explode(',', $relations) : [];
 
-            $list     =  $data->toArray
+            $columns_param = Input::get("columns", "");
+            $columns = [];
+            if(!empty($columns_param))
+                $columns  = explode(',', $columns_param);
+            $diff     = array_diff($columns, $allowed_columns);
+            if(count($diff) > 0){
+                throw new ValidationException(sprintf("columns %s are not allowed!", implode(",", $diff)));
+            }
+            if(empty($columns))
+                $columns = $allowed_columns;
+
+            $list =  $data->toArray
             (
                 Request::input('expand', ''),
                 $fields,
@@ -650,9 +686,11 @@ final class OAuth2SummitMembersApiController extends OAuth2ProtectedController
                 $filename,
                 $list['data'],
                 [
-                    'created'     => new EpochCellFormatter(),
-                    'last_edited' => new EpochCellFormatter(),
-                ]
+                    'created'      => new EpochCellFormatter(),
+                    'last_edited'  => new EpochCellFormatter(),
+                    'affiliations' => new CurrentAffiliationsCellFormatter(),
+                ],
+                $columns
             );
         }
         catch (EntityNotFoundException $ex1) {
diff --git a/app/Http/Utils/CSV/CSVExporter.php b/app/Http/Utils/CSV/CSVExporter.php
index 3089a063..0e373e82 100644
--- a/app/Http/Utils/CSV/CSVExporter.php
+++ b/app/Http/Utils/CSV/CSVExporter.php
@@ -65,6 +65,7 @@ final class CSVExporter
                $val      = isset($row[$key])? $row[$key] : '';
                if(isset($formatters[$key]))
                    $val = $formatters[$key]->format($val);
+               if(is_array($val)) $val = '';
                $values[] = $val;
             }
             $output .= implode($field_separator, $values) . PHP_EOL;;
@@ -75,7 +76,7 @@ final class CSVExporter
     function cleanData(&$str)
     {
         if (is_null($str)) {$str = ''; return;};
-        if (is_array($str)) {$str = ''; return;};
+        if (is_array($str)) {return;};
         $str = preg_replace("/\t/", "\\t", $str);
         $str = preg_replace("/\r?\n/", "\\n", $str);
         $str = preg_replace("/,/", "-", $str);
diff --git a/app/Http/Utils/CSV/CurrentAffiliationsCellFormatter.php b/app/Http/Utils/CSV/CurrentAffiliationsCellFormatter.php
new file mode 100644
index 00000000..5bf536de
--- /dev/null
+++ b/app/Http/Utils/CSV/CurrentAffiliationsCellFormatter.php
@@ -0,0 +1,40 @@
+<?php namespace App\Http\Utils;
+/**
+ * Copyright 2019 OpenStack Foundation
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+/**
+ * Class CurrentAffiliationsCellFormatter
+ * @package App\Http\Utils
+ */
+final class CurrentAffiliationsCellFormatter implements ICellFormatter
+{
+
+    /**
+     * @param string $val
+     * @return string
+     */
+    public function format($val)
+    {
+        $res = "";
+        foreach ($val as $affiliation){
+            if(!isset($affiliation['is_current'])) continue;
+            if(boolval($affiliation['is_current']) == false) continue;
+            if(!isset($affiliation['organization'])) continue;
+            $organization = $affiliation['organization'];
+            if(!empty($res))
+                $res .= '|';
+            $res .= $organization['name'];
+        }
+       return $res;
+    }
+}
\ No newline at end of file
diff --git a/tests/OAuth2SummitApiTest.php b/tests/OAuth2SummitApiTest.php
index 2feba21a..f44027a1 100644
--- a/tests/OAuth2SummitApiTest.php
+++ b/tests/OAuth2SummitApiTest.php
@@ -1349,7 +1349,8 @@ final class OAuth2SummitApiTest extends ProtectedApiTest
 
             'expand'    => 'attendee,speaker,feedback,groups,presentations',
             'id'        => $summit_id,
-            'filter'   => 'schedule_event_id==23828'
+            'filter'   => 'schedule_event_id==24015',
+            'columns'  => 'id,first_name,last_name,email,affiliations',
         ];
 
         $headers = ["HTTP_Authorization" => " Bearer " . $this->access_token];