Alexander Dennis is a British bus manufacturer known for producing a wide range of buses and coaches. Founded in 2001, the company has become one of the largest bus manufacturers in the UK, specializing in low-floor buses that are accessible for all passengers. Their products are used in various cities around the world, contributing to public transportation systems. The company is particularly recognized for its double-decker buses, such as the Enviro400 and Enviro200 models. Alexander Dennis focuses on innovation and sustainability, incorporating environmentally friendly technologies into their designs to reduce emissions and improve energy efficiency.