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

Direct contact

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

Contact details of the reporting office:
Chriwa Wasseraufbereitungstechnik GmbH
c/o Althammer & Kill GmbH & Co. KG
Roscherstraße 7
30161 Hannover

Phone: +49 511 330603-70
 chriwa-group@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 Chriwa Wasseraufbereitungstechnik GmbH.

If you use a work telephone to make the report, employees of Chriwa Wasseraufbereitungstechnik GmbH 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 Chriwa Wasseraufbereitungstechnik GmbH website or intranet. It is located on secure, external servers. The employees of Chriwa Wasseraufbereitungstechnik GmbH cannot view the whistleblower system.