The Viessmann group of companies is one of the leading manufacturers of heating systems internationally. Dr. Martin Viessmann is the third generation of his family to manage the company, which was established in 1917. The group's turnover is approx. 1.4 billion euros and it employs around 7,400 employees.

Viessmann is an international company with 12 plants in Germany, France, Canada, Poland, Austria and China, sales organizations in Germany and 35 other countries and 119 sales branch offices. Exports account for 50 % of sales.

Viessmann is well placed to meet future requirements thanks to its comprehensive product range for all output ranges from 1.5 to 20 MW, but in particular, the highly efficient condensing technology for oil and gas and products for renewables. An appropriate solution is available to meet all requirements and for every budget in the varied product ranges of the 100, 200 and 300 with their different prices and technical specifications. And all this from one single supplier, with perfectly coordinated system components. New additions to the program are air conditioning units for residential properties and fairly small commercial buildings.