DEOS AG becomes part of the REGIN Group

The Swedish REGIN Group announced today that it has acquired German DEOS AG, a technology frontrunner in building automation. Both companies have great positions in smart building technologies and share a long and successful history in their respective markets. The joint product offering, including software for building management, will be one of the strongest in the industry.

“The acquisition of DEOS AG is an important step of our journey to become a European market leader in our niche of the building automation and control systems market. Our customer centric approach, shared passion for innovative energy saving solutions in combination with our talented teams is a perfect match”, says Fredrik Wiking, CEO & President Regin Group.
DEOS AG becomes a part of the REGIN Group with a separate product line under the DEOS brand name. The company has a state of the art offering of freely programmable controllers with all relevant communication protocols, Cloud/IoT & Cyber security solutions, SMD manufacturing and software development capacities – made in Germany. Together with DEOS AG the Regin group is strengthening its market positions in Germany, Austria and Switzerland.

“With the two businesses joining forces, we will be able to deliver enhanced value for our customers and partners with a comprehensive and state of the art range of solutions to create energy optimisation for buildings, all from one source”, says Fredrik Wiking CEO & President Regin Group.

Stefan Plüth, the founder and former sole shareholder of DEOS AG, has with this transaction realised his personal succession plan and placed the company, which has existed since 1967, on a new solid foundation for the future.

"I am very pleased that we have found a partner on an equal footing with the Regin Group, because I put great importance on continuity in the search for the right company. In addition, the Swedish company fits very well with DEOS' product and sales orientation as well as our corporate culture," says Stefan Plüth.

"Over last years we have established a sustainable long-term growth strategy for DEOS – with a clear focus on best-in-class customer engagement. I am very happy to continue this work as part of the Regin Group, bringing DEOS to the next stage of its development", says Thomas Patzelt COO of DEOS AG who will now replace Stefan Plüth as CEO of DEOS AG.

Stefan Plüth will be appointed member of the board of Regin Group."In my new role I will continue to contribute to DEOS growth and thus remain connected to our system partners as well as the employees. This is a matter close to my heart.”


DEOS AG from Rheine (Germany) is the expert in the automation and digitization of non-residential buildings. With more than 55 years of experience, DEOS takes care of the integration and interaction of technical systems (TBE, HVAC). The goals are to achieve interoperability, to ensure the energy-efficient operation of the building to reduce costs and thus ultimately to achieve the desired increase in comfort for the users. By combining classic building automation with state-of-the-art and secure IoT/cloud solutions, we offer fast, economical and individual solutions. Our customers include banks, cities & municipalities, public institutions, office operators, hotels, hospitals, etc.

DEOS AG, with approx. 150 employees, has its headquarter in Rheine, Germany.
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About Regin Group

Regin Group is a Global provider of intelligent building management systems and field products. For more than 75 years, we have been committed to building technology innovation. Our goal is to save energy, minimize carbon dioxide emissions and contribute to a healthy and productive indoor environment.

We provide intelligent, user-friendly, and efficient solutions that empower system integrators, manufacturers, and facility owners. Our products are primarily developed at the Regin innovation center in Lund, Sweden, and reach the market through local sales offices and in cooperation with system integrator partners, OEM customers, and distributors.

Today, we are approximately 300 employees in Europe and Asia who share our vision of people’s well-being in a sustainable future. The Regin headquarter is located in Kållered, Sweden, and the Regin Group has subsidiaries in 11 countries in Europe and Asia. For more information visit

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