Since 1997 we have been working successfully for our international customers from aerospace, transportation, and the automobile industry. With “safety wherever you go” we are working on solutions of high functionality and dependability in these fields which are particularly important – in safety critical systems and their software. You can benefit as well from our many years of experience in the fields of

  • Functional Safety,
  • Software Engineering,
  • Test Competence,
  • Verification and Validation as well as
  • Risk Analysis and Aerospace Studies.

Based on requirements we provide proven technologies as well as innovative high-end developments. By means of our multi-industry know-how we are able to develop for you individually designed software solutions of the highest standard.


The team at etamax space GmbH consists of more than 40 highly-motivated engineers and IT specialists. Our employees come from various areas, such as from geodesy, physics, aviation and space travel. Along with the projects, the team is also international.

Board of Management

Holger Sdunnus and Ralf Westerkamp – two of the founders and Managing Directors at etamax space GmbH – have their roots in aviation and space technology. They have been successfully managing the growing company in projects in this area and beyond since 1997.

Ralf Westerkamp
Ralf Westerkamp

Managing Director

Managing Director, Ralf Westerkamp, is responsible for the areas of organisation, human resources and finances. He is also head of railway technology. In his free time he enjoys the topic mobility in quite different ways: as horseman and private pilot.

Anton Fischer
Anton Fischer

Managing Director

Anton Fischer is Managing Director and also head of distribution and sales. Furthermore he is responsible for the etamax Test Competence Center (TCC) as well as the subject Spacecraft Processes and Validation. In his free time the soccer fan is an enthusiastic player and trainer.

Jürgen Ogrzewalla

Managing Director

Jürgen Ogrzewalla, Head of Business Unit Electronics & Electrification at FEV Group, Aachen, supports etamax space GmbH in braunschweig as third Managing Director.

Executive Committee

Karl Dietrich Bunte
Karl Dietrich Bunte

Head of Space Environment

Dr. Karl Dietrich Bunte runs projects in the space environment area. Together with his team, he thus runs one of etamax’s core competences. The tasks falling under his leadership range from risk analyses for space flight missions to developing software tools and the development of deployable space flight hardware.

Berend Semke
Berend Semke

Head of Software Competence Center

The experienced software architect, Berend Semke, manages development software projects for our individual industry customers. Under his tutelage, projects based on object-oriented languages (e.g. Java) and databases are planned and executed.

Carsten Butzmühlen

Head of Functional Safety

Carsten Butzmühlen, aerospace engineer,  has strong  expertise in functional safety. His experience and knowledge grew through his participation in international projects. His team is made up of young engineers and mainly focused on automotive projects. Nevertheless also other topics regarding safety-critical systems are targeted.

Secretarial Services

Miriam Grupe and Bärbel Mäkeler

Our secretarial team consists of Miriam Grupe – assistant to the board – and Bärbel Mäkeler. Both of them provide dedicated support to the managing directors, project managers and all the other members of staff in their daily business activities.