About Us

-4H-JENA engineering stands for tailor-made measurement technology of the highest quality. From optical instruments, underwater measurements to the reconstruction of historical astronomical devices, we offer solutions in various industries.

The roots of our company

-4H-JENA engineering GmbH was founded in 1991. In meanwhile almost 30 years the profile of the company constantly evolved. The company is oriented towards the challenges of an increasingly complex market.


This development is also reflected in the consistent orientation of the production profile from the single-solution to a system supplier. The aim of our company philosophy was and is the individual optimal realization of customer demands and the associated customer satisfaction. We meet our customers and employees with respect, fairness and openness. Our customers value us for our competence, structured acting, and reliability.

The introduction of a quality management system (QMS) in accordance with DIN EN ISO 9001 took place in 1997. The ongoing recertifications reflect our high quality standards. In 2017, we have upgraded our QMS to the current standard DIN EN 9001: 2015 and have been certified. The conversion was funded by the European Social Fund and by state funds of the Free State of Thuringia.



Our versatile portfolio allows us to address customers from a wide range of industries.


We have qualified, motivated employees with experience in the implementation of new challenging tasks.

Industrial Sectors

In the 3 product areas

Marine technologies and measurement technology

Optical inspection and measurement technology

Industrial services

currently 36 employees are working on the development, production and distribution of optical, mechanical and electronic components, devices and systems.


In addition to the company’s headquarters in Jena, a branch office in Kiel (Schleswig-Holstein) was successfully established. This allows us to have even more intensive contact with our customers, especially in the marine sector.


The company -4H- JENA engineering GmbH is a member of BVMW (German Association for Small and Medium-sized Businesses) and GMT (Society for Maritime Technologies).


Michael Boer

Managing Director
Prov. head of Marine Technologies

In the company since its inception Managing Director since July 2012

Jana Oschmann

Finances and Controlling

Responsible for accounting and controlling in close collaboration with the managing director.

Maik Grunwald, PhD

Head of Research and Development

Jürgen Heyne

Head of Industrial Services

Multi-faceted experience in various areas of production and management of projects

Oliver Bronsert

Head of Optical Inspection and Measurement Technology

B.Sc. Nadja Kinski

Branch Manager Kiel