
Quality and reliability “Made in Germany”
Brand
The Cleff brand stands for quality and reliability “Made in Germany”. We develop and manufacture your tailor-made, customer-specific solutions for vehicle windows, vehicle doors and partitions. We have also contributed our extensive know-how to development work with our subsidiary Westberga; over many years of cooperation we have jointly created numerous innovative, customer-specific windows.
Philosophy
Our customers benefit from the advantages of a medium-sized company: flexibility, flat hierarchies and decisiveness. We know exactly how high-performance, modern vehicle windows and doors have to be developed and built today – and we warmly invite you to benefit from our know-how.
Get to know us and our company. You can expect in-depth advice, proactive action and on-schedule production.

What we stand for
Carl Wilhelm Cleff GmbH & Co. KG stands for a company history that has grown since 1935 and for extensive experience in the many fields of application of system glazing and door construction. Numerous fundamental developments and patent applications testify to the innovative strength with which we have been setting standards for decades.
Consistent further development ensures that our customers will continue to have a reliable development partner at their side in the future.
References
Trusted through decades of series supply.
- Alstom
- Beach-Tech
- Concorde
- Deutsche Bahn
- Düwag
- EvoBus
- Gangloff
- Heiter-Blick
- Kässbohrer
- Komatsu
- Linsinger
- MAN
- Morelo
- ÖBB
- SBB
- Scania
- Shiptec
- Siemens
- Stadler
- VDL
- Voith
- Volvo
- Vossloh
- Ziegler
- Alstom
- Beach-Tech
- Concorde
- Deutsche Bahn
- Düwag
- EvoBus
- Gangloff
- Heiter-Blick
- Kässbohrer
- Komatsu
- Linsinger
- MAN
- Morelo
- ÖBB
- SBB
- Scania
- Shiptec
- Siemens
- Stadler
- VDL
- Voith
- Volvo
- Vossloh
- Ziegler