KONZMANN Companies –
a powerful alliance for energy and building technology

The KONZMANN Group unites 21 specialized subsidiaries under one roof, organized into four functional divisions with a regional focus: Engineering, Refrigeration Technology, Electrical Engineering, and Technical Building Services (TBS). Together, they form a powerful network delivering holistic, innovative, and sustainable solutions in energy and building technology — all from a single source.

We call this: TBS . ALL IN ONE.

From conception, consulting, and planning to installation, maintenance, service, energy-related services, and technical operations, the companies within the KONZMANN Group cover the full spectrum of energy and building technology. Our independently operating subsidiaries are deeply rooted regionally, while closely connected within the entire group. For our clients, this means personal support and short communication channels locally, combined with the pooled expertise, resources, and synergies of a strong corporate alliance — ensuring maximum flexibility, technological depth, and optimal solutions at every project stage.

Around 1,100 employees at over 30 locations serve customers from the private sector, industry, commerce, and public institutions. Our comprehensive 360° portfolio includes heating, air conditioning, ventilation, and sanitation technology; refrigeration and climate technology; electrical engineering; building automation; as well as innovative consulting, planning, and service offerings. Through these services, our companies support their clients on the path toward sustainable, energy-efficient, and future-proof building technology.

Whether planning, installation, or operation: the consolidation of specialized expertise makes the KONZMANN Group a unique system provider of sustainable and efficient solutions — all from a single source with a clear focus on innovation, decarbonization, and energy security.

Discover our companies.