Assets on Willis Lease Finance’s balance sheet represented 67% of total assets under management. In July, it signed definitive documentation to acquire private-equity entities that own 12 additional commercial aircraft and 13 aircraft engines. About Willis Lease Finance (NASDAQ:WLFC)Willis Lease Finance Corporation (NASDAQ: WLFC) is an independent global provider of aircraft engine leasing, trading and aftermarket services. Through its broad engine portfolio, Willis Lease Finance supports a wide range of commercial aircraft across various operators, including major airlines, regional carriers and other leasing companies. In addition to leasing solutions, Willis Lease Finance offers comprehensive engine trading and asset management services.