About us


Foundation of the engineering service provider Ingenieurbüro Pfeiffer

Expansion of company and services to Ingenierbüro für Verfahrenstechnik Hellmick und Pfeiffer GbR

Further Expansion and change of the legal structure of the company into heat and power engineering GmbH (limited liability company)


Managing directors



Dirk Pfeiffer

Dirk Pfeiffer (born 1968) holds a degree as process engineer.

He designed and developed various testing plants for energy creation while serving the Institute für Verfahrenstechnik und Dampfkesselwesen (Fraunhofer Gesellschaft IVD). Within this context, he headed successfully a long-term (several years) industrial project.

Since 2004, he works as independent engineer on various industrial (power supply) and research projects (Zentrum für Sonnenenergie und Wasserstoffwirtschaft ZSW, Fraunhofer Gesellschaft IVD).




Klaus Hellmick

Klaus Hellmick (born 1975) holds a degree in mechanical engineering with focus on energy and environmental technology.

In 2007, he co-founded the process engineering company with Dirk Pfeiffer and worked on several power generation projects.

Prior to this he worked as test engineer in the R&D department of power saw manufacturer Stihl. In this position, he significantly contributed to various product developments in international project teams.