Who keeps winning — TenderRadar competitor leaderboard

GSI Gebäudeservice GmbH

2 recorded wins · €32k total awarded value (where disclosed).

Published	Title	Buyer	Awarded
2026-07-21	Endreinigung RFH OM	Stadt Recklinghausen DE	€22,942
2026-05-06	Baureinigung - Kirberger Hof	Stadt Monheim am Rhein DE	€9,078