DEOS AG: Building automation that inspires.

Who we are

As an owner-managed and internationally active company, we have been developing and producing intelligent products, solutions, and services for the automation and digitalisation of buildings and facilities for more than 55 years. With our passion for innovation and dedication to quality, our sustainable product portfolio can be used to combine heating, ventilation and air conditioning with the aid of cutting-edge information technology to form an efficient and future-oriented overall system. System integration into building services technology that is easily realised plays a major role at DEOS AG. Every day, our associates work with system partners, specialist planners, end customers, operators and building owners all over the world. We do everything to ensure the energy-efficient and sustainable operation of buildings. For buildings that inspire.

Learn more about DEOS AG and our product and solution portfolio that is in step with actual practice from our brief company portrait brochure.

ein Mann im Vordergrund und zwei Männer im Hintergrund

What defines us

More than any other competitor in the industry, we focus on the interaction between cutting-edge information technology and classic building automation to provide our system partners and end users with sustainable and secure solutions for the future. In-house product development and the manufacture of our key products in the areas of hardware and software form the basis we rely on. Cultivating personal and close business relationships with our system partners enables us to incorporate shared experiences into the in-house product development. As a mid-sized company, we are more agile and it is much easier for us to respond to environmental factors and modify our product and solution portfolio accordingly. The simplicity of our systems and straightforward system integration come first with us. This is imperative in a world of building automation that continues to grow in complexity and it enables our system partners and end customers to stay as flexible as possible.

What drives us

We strive to inspire our system partners, operators, end customers and our employees with the products, solutions and services we provide and that is what drives us to continuously improve our services and products. We believe that most importantly this means understanding the market and the needs and to optimally adapt our portfolio accordingly. To this end, we are working very closely with our system partners. Meeting in direct dialogue, we identify new possibilities and opportunities to optimise our products. What we have learnt in today’s complex world is to look for the things that make life easier. Simplicity that inspires.

ein Referent zeigt etwas am Flipchart
altes Firmengebäude

Where we come from

Well over 55 years of experience in the industry. Continuous growth as an internationally active company combined with the flexibility of a mid-sized family business works to benefit DEOS AG. Founded in 1967, DEOS AG has been owner-managed for two generations and it is completely self-financed. A small one-owner operation has grown into an international corporation that is represented at 12 locations around the world, with well over 200 employees. We regard our employees and our system partners, whose unwavering passion and enthusiasm for the work they do and which has ensured a high level of customer satisfaction, as the key element for the success of the company.

And this has been appreciated by DEOS system partners, building owners, investors, specialist planners, and building operators alike all over the world for more than 55 years.

Do you have any questions?


Additional contact options

+49 5971 91133-0

Facts & Figures

Regionally rooted, represented worldwide

Headquarters Germany

DEOS AG Headquarters

Birkenallee 76
48432 Rheine

Tel.:+49 5971 91133-0
Fax:+49 5971 91133-2999


DEOS AG Gebäudeautomation Regeltechnik HLKSE

Alte Affolterstraße 2
8909 Zwillikon

Tel.:+41 44 760 55 40
Fax:+41 44 760 55 44


DEOS control systems Nederland B.V.

Nordhornsestraat 97A
7591 BD Denekamp

Tel.:+31 541 35 5550
Fax:+31 541 35 2777


DEOS Singapore Pte Ltd.

21 Woodlands Close #06-24
Primz BizHub
Singapore (737854)

Tel.:+65 8717 7564

Hong Kong

DEOS Controls AP Ltd.

Room 2-3, Floor 23, Multifield Centre
426 Shanghai Street
Mongkok, Hong Kong

Tel.:+852 90973051


DEOS Australia

9/61 The Gateway
Broadmeadows, VIC, 3047

Tel.:+61 3 9357 2001
Fax:+61 3 9359 2344

Middle East

DEOS Middle East FZCO

A2 building, Dubai Digital Park, Silicon Oasis
United Arab Emirates