diff --git a/Layout/default/Admin/Index.php b/Layout/default/Admin/Index.php
index 81b5fd926..2c66cf808 100644
--- a/Layout/default/Admin/Index.php
+++ b/Layout/default/Admin/Index.php
@@ -29,6 +29,9 @@
                             <div class="row col-12">
                                 <div><a href="<?=self::getUrl("Admin", "customerStatistics")?>">Kundenstatistiken</a></div>
                             </div>
+                            <div class="row col-12">
+                                <div><a href="<?=self::getUrl("Admin", "downloadBusinessCustomers")?>">Businesskunden CSV herunterladen</a></div>
+                            </div>
                             <div class="row col-12">
                                 <div><a href="<?=self::getUrl("Admin", "RtrReporting")?>">RTR Reporting</a></div>
                             </div>
diff --git a/application/Admin/AdminController.php b/application/Admin/AdminController.php
index 77ecb2ff9..25cc2726b 100644
--- a/application/Admin/AdminController.php
+++ b/application/Admin/AdminController.php
@@ -80,6 +80,64 @@ class AdminController extends mfBaseController {
 
   }
 
+  protected function downloadBusinessCustomers() {
+      $bc_sql = "SELECT COUNT(Contract.id) as contract_count, Address.* FROM `Address`
+              LEFT JOIN Contract ON (Contract.owner_id = Address.id)
+              WHERE customer_number > 0 AND company <> ''
+              AND (Contract.cancel_date IS NULL OR Contract.cancel_date > UNIX_TIMESTAMP())
+              GROUP BY Address.id HAVING contract_count > 0
+              ORDER BY Address.company, Address.lastname
+              ";
+      //$this->log->debug($bc_sql);
+      $bc_res = $this->db()->query($bc_sql);
+
+      $csv = "customer_number;fibu_account_number;uid;company;firstname;lastname;street;zip;city;country;email;phone;fax;mobile;birthdate;allow_contact;allow_spin\n";
+      while($address = $this->db()->fetch_object($bc_res)) {
+          $country = new Country($address->country_id);
+          $birthdate = false;
+
+          if($address->birthdate)
+              try {
+                $birthdate = new DateTime($address->birthdate);
+              } catch(Exception $e) {
+                $birthdate = false;
+              }
+
+          $csv .= "{$address->customer_number};";
+          $csv .= "{$address->fibu_account_number};";
+          $csv .= "\"{$address->uid}\";";
+          $csv .= "\"{$address->company}\";";
+          $csv .= "\"{$address->firstname}\";";
+          $csv .= "\"{$address->lastname}\";";
+          $csv .= "\"{$address->street}\";";
+          $csv .= "\"{$address->zip}\";";
+          $csv .= "\"{$address->city}\";";
+          if($country->id) {
+              $csv .= "\"{$country->name}\";";
+          } else {
+              $csv .= ";";
+          }
+          $csv .= "\"{$address->email}\";";
+          $csv .= "\"".(string)$address->phone."\";";
+          $csv .= "\"".(string)$address->fax."\";";
+          $csv .= "\"".(string)$address->mobile."\";";
+          if($birthdate) {
+              $csv .= "\"".$birthdate->format('d.m.Y')."\";";
+          } else {
+              $csv .= ";";
+          }
+          $csv .= "{$address->allow_contact};";
+          $csv .= "{$address->allow_spin};";
+          $csv .= "\n";
+      }
+
+      header("Content-type: text/csv; charset=utf-8");
+      header('Content-disposition: attachment; filename="tt-business_customers-'.date('Y-m-d_H-i-s').'.csv"');
+      echo $csv;
+      exit;
+
+  }
+
   protected function rtrReporting() {
       require_once(realpath(dirname(__FILE__)."/functions")."/RtrReporting.php");