Tradition and future
Since its foundation in 1838, the name S. Franzen Söhne GmbH has been synonymous with locking and securing. While locks and fittings initially formed the core of our product range, we now manufacture a wide range of plastic components for various industries and applications – from delicate individual parts and complex locking systems, to security devices for rubbish bins and weapons, to interior parts for the automotive sector.

Leading positions
With our core competence – the development and manufacture of locking solutions – our decades of experience and comprehensive know-how have made us the largest supplier of TSA locks in Europe. We are also one of the leading developers and manufacturers in the field of bin locks.