KELLER PRESSURE
A market leader in the production of isolated pressure transducers and transmitters
KELLER Pressure was established in 1974 by Hannes W. Keller, the inventor of the integrated silicon measuring cell. Today, his sons Tobias and Michael Keller run the business. The company is wholly family-owned and employs 480 staff.

KELLER feels a strong connection to its home of Switzerland. Its headquarters are where the value is added and where most of our employees work. As a result, all KELLER products bear the quality seal «Made in Switzerland» and embody the Swiss values of quality, functionality, and reliability.

KELLER Druckmesstechnik AG, including KELLER Gesellschaft für Druckmesstechnik mbH in Jestetten, is certified to ISO 9001. This means that our measured values can be fully traced to national standards.

KELLER Subsidiaries
At home anywhere in the world
As a company that operates on an international scale, KELLER is represented at a number of locations around the globe. Because we are committed to offering the best service to our customers, you will always receive advice in your local language. KELLER has eleven branches in Europe, Asia, and the USA. Various representatives and distributors also support our branches in other countries.

Technology and Production
Piezoresistive pressure measurement technology made in Switzerland
Every year, KELLER produces more than 1,3 million high-grade measuring cells. From start to finish, our value chain is created at our headquarters in Winterthur, where we do everything from producing the individual parts to calibrating the sensor and carrying out the final checks on the finished product. This means that all KELLER products are 'Made in Switzerland' and customers can be sure that they are getting renowned Swiss quality.

Values and Vision
Strong roots meet sustainable development
KELLER strives not just to meet individual customer requirements, but also to ensure that the company develops in a sustainable way. This is underpinned by our commitment to promoting the independent development of our employees in both the personal and the professional realm.

Responsibility
Added value – by people, for people
KELLER is committed to building a strong network and running a company that is operated by and for people. KELLER is more than just a financial backer – it creates sustainable added value. KELLER places a special focus on projects that give people an opportunity for development.