AerCap Holdings NV engages in the leasing, financing, sales, and management of commercial flight equipment. The firm provides a range of assets for lease, including narrowbody and widebody aircraft, regional jets, freighters, engines, and helicopters. Its offering includes new and used commercial passenger and cargo aircraft, and helicopters, on operating lease from its existing fleet and order book. In addition, it offers aftermarket components, equipment and services through its materials business and the lease, purchase and financing of spare engines. The company also provides aircraft owners, financiers and investors with all asset services necessary to manage an aircraft, engines and helicopter portfolio. The firm has a portfolio of approximately 1,700 aircraft, over 1000 engines and over 300 helicopters, and an order book of more than 393 in-demand aircraft in the world. The firm serves approximately 300 customers around the world with comprehensive fleet solutions.