Leeham Co LLC Email Format
Airlines and AviationWashington, United States2-10 Employees
Leeham Co LLC is an aviation consulting firm that specializes in competitive intelligence and strategic research within the airlines and aviation sector. Its work centers on delivering market analyses to inform decisions for corporate stakeholders and financial clients. By assessing competitive dynamics and market prospects, the firm supports clients seeking a clearer view of industry developments. The company is based in Bainbridge Island, Washington, and operates with a small team. In July 2025, Leeham News & Analysis released the first installment of a five-part series examining prospects for new commercial airliners anticipated to enter service over the coming decades.