Be quiet! is a brand owned by the German company Listan GmbH, which manufactures power supply units, CPU coolers, computer cases and case fans. The main target groups for products in the be quiet! range are PC enthusiasts and gamers as well as smaller and larger PC integrators.

Be quiet! products are convincing which is proved by reaching and defending the market leadership in PSU business in Germany since 2006. This is validated and accompanied by numerous awards for both power supplies and cooling solutions.