1916, Established the Pacific Airplane Company, which became the Boeing Airplane Company a year later and built its first two planes, both float biplanes.
1926 established the Boeing Air Transport service for mail and passenger service. By February 1929, the BAT became the largest aviation company. Boeing shrewdly purchased airmail routes and small aircraft companies, often purchasing failing companies with the assurance that the employees would maintain their jobs.
Helped create the United Aircraft and Transport Company (known as “United” today) and served as chairman.