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Leeham Co LLC provides aviation consulting focusing on business strategy, competitive intelligence and through Twelves Unlimited, branding/ marketing/ advertising/ communications.

Our experts provide economic analysis of commercial aircraft operating costs. The manufacturers' public and private data is understandably skewed to make their products look good. We even the playing field and provide an independent assessment of how the airplanes stack up against the competition.

We identify and follow trends in the aircraft manufacturing, suppliers and airline industries. We regularly are invited to present our analysis of these trends at corporate meetings, leadership councils and conferences.

Our weekly e-newsletter provides valuable insight to industry developments.

Leeham News and Comment follows key developments in aerospace, principally of the “Big Four” Original Equipment Manufacturers (OEMs). Airbus, Boeing, Bombardier and  Embraer. We also follow the Big Three engine OEMs, CFM, Pratt & Whitney and Rolls-Royce.