Ensuring quality requirements is a top priority at Stump-Franki. This is also evidenced by our certificates and approvals. In order to always be up to date, our certificates and approvals are reviewed and updated on a regular basis through external audits and independent certification companies.
In addition, independent companies, such as Deutsche Bahn AG, confirm our skills and actions through prequalifications and special recognition.
All certificates, approvals and memberships can be found here: