List of certification bodies

From 1 April 2019, all certification bodies wishing to certify against GWO standards and criteria must prior to performing an audit, document their compliance with the GWO Criteria for Certification Bodies.

The organisations below have documented conformity with the requirements as set out in the GWO Criteria for Certification Bodies. 

If you prefer to use another certification body than those listed, please ask them to provide this documentation to GWO.