We value open communication. You can use our whistleblower system to report violations of laws to us anonymously.

Direct contact

You can reach the reporting office from Monday to Friday between 09:00 and 17:00.

Contact details of the reporting office:
Sozialgewerk für Handwerker der Stadt Hannover eG
c/o Althammer & Kill GmbH & Co. KG
Roscherstraße 7
30161 Hannover

Phone: +49 511 330603-70
 wohnpark-kastanienhof@ak-compliance.de

This is not a hotline, but trained employees who will take up your request and initiate further processing.

The employees are not employees of your organization, but employees of Althammer & Kill, who operate the whistleblower system for us, the Sozialgewerk für Handwerker der Stadt Hannover eG.

If you use a work telephone to make the report, employees of Sozialgewerk für Handwerker der Stadt Hannover eG may be able to see that you have called this reporting office. If you wish to avoid this, do not use a work telephone to make contact.

Alternatively, select the option to give a hint via the reporting portal, using the "Get in touch" button.

Our whistleblower system is operated by our external service provider Althammer & Kill and is not part of the Sozialgewerk für Handwerker der Stadt Hannover eG website or intranet. It is located on secure, external servers. The employees of Sozialgewerk für Handwerker der Stadt Hannover eG cannot view the whistleblower system.