Brødrene A & O Johansen A/S is a Denmark-based wholesaler specializing in technical installation materials and tools for the construction industry. Founded in 1914 and headquartered in Albertslund, the company supplies a broad range of products including plumbing fittings, sanitary ware, electrical equipment, lighting, climate control systems, drainage and water supply solutions, pumps, pipes, insulation, brackets, workwear, safety gear, and various tools and machines. It operates through two primary segments: Professional B2B, serving construction firms across Denmark, Sweden, Norway, the Baltic region, and internationally, and Private B2C via retail stores and online platforms like AO.dk. With over 1,000 employees, Brødrene A & O Johansen A/S maintains central warehouses, logistics centers, and numerous outlets, emphasizing efficient distribution in the Nordic and Baltic markets. The firm also provides equipment rental services, supporting both professional tradespeople and DIY enthusiasts in the building and renovation sectors. As a century-old Danish enterprise, it plays a key role in the industrials and construction supplies wholesale market.