de Havilland is a British aerospace company founded in 1920 by Sir Geoffrey de Havilland. It is known for designing and manufacturing a range of aircraft, including commercial airliners and military planes. The company gained fame for its innovative designs, such as the de Havilland Mosquito, a fast and versatile World War II bomber. In the post-war era, de Havilland produced the Comet, the world's first commercial jet airliner, which revolutionized air travel. The company has a rich history in aviation, contributing significantly to both military and civilian aviation advancements throughout the 20th century.