From Wikipedia:

The Vaillant Group is a company that develops products for heating, cooling and hot water.[2] The company employs over 12,000 people worldwide and generates an annual turnover of approximately 2.3 billion euros. This makes the Vaillant Group the second-largest company in its sector in Europe. This family-owned company is a global market leader in the wall-hung boiler segment. The Group’s activities focus on the development of green products, and energy-saving and environmentally friendly products in particular, with the aim of achieving sustainable and profitable growth. The Vaillant Group’s headquarters are located in Remscheid, North Rhine-Westphalia. The company is still one-hundred per cent family owned today

Vaillant 12 Point Check

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