Willis Lease Finance Corporation [NASDAQ: WLFC]

Airlines are placing greater value on partners that can deliver more than maintenance alone. Access to engine leasing, asset management, technical consulting and lifecycle support through a single provider simplifies fleet management and reduces the need to coordinate multiple specialist vendors. Bringing those capabilities together helps operators keep aircraft in service while making day-to-day operations more efficient.

An Integrated Aviation Services Platform

Willis Lease Finance Corporation (WLFC) has developed an integrated aviation services platform extending well beyond traditional engine leasing. More than four decades of growth have brought together Willis Aviation Services, Willis Aeronautical Services and Willis Mitsui Asset Management, creating a business that supports aircraft throughout every stage of ownership.

Aircraft maintenance, engine leasing, fleet management, technical consulting, spare parts support, aircraft disassembly, storage and lifecycle asset management operate as complementary services. Customers gain access to coordinated aviation expertise through one organization rather than assembling separate providers for each operational requirement.

Supporting the Complete Aircraft Lifecycle

WLFC supports aircraft and engines throughout the entire operating lifecycle. Aircraft base maintenance, line maintenance, modifications, storage, preservation, return to service, engine leasing, component support and technical consulting are delivered within one coordinated operating model. Airlines, OEMs, lessors and MRO providers benefit from simplified service coordination and operational continuity.

One of the company's strongest operational assets is Willis Aviation Services at Teesside International Airport in the United Kingdom. The facility provides aircraft base maintenance, line maintenance, modifications, painting, storage, aircraft disassembly, airport handling and return to service support under approvals from multiple aviation authorities while helping minimize aircraft downtime.

Engine Availability and Technical Expertise

Maintenance capability is complemented by one of the industry's largest independent commercial engine portfolios. Airlines can secure short-term and long-term engine leases, sale leaseback financing, green time engines, auxiliary power units, engine stands and spare engines according to operational requirements. ConstantAccess guarantees worldwide engine availability during scheduled maintenance or unexpected aircraft on ground events.

Engineering expertise supports customers long after maintenance work is completed. Specialists assist with fleet planning, engine health monitoring, maintenance forecasting, shop visit management, records audits, transition planning, OEM negotiations and technical documentation. Careful lifecycle planning helps improve long-term asset performance while supporting better maintenance economics.

An international operating network strengthens WLFC's ability to support customers wherever aircraft are located. Facilities and subsidiaries across North America, Europe and Asia provide maintenance expertise, spare assets and technical support in more than 120 countries. Twenty four hour operational assistance helps airlines respond quickly when unexpected operational requirements arise.

Customization remains another distinguishing feature. Customer-specific engine pools, sale leaseback programs, finance leases, engine management services and short-term leasing arrangements are developed around individual fleet strategies rather than standardized commercial offerings. Close collaboration with airline engineering teams helps align maintenance planning with technical and financial objectives.

Supporting Aviation at Scale

Willis Lease Finance Corporation combines aircraft engine leasing with maintenance, repair, overhaul, technical consulting and asset management within one global business platform. Leasing, maintenance, component support, engine management and end-of-life asset services work together, allowing customers to reduce operational complexity while relying on a single strategic aviation partner.

Scale further strengthens those capabilities. According to the company's latest disclosures, WLFC manages one of the world's largest independent commercial aircraft engine portfolios while serving customers in more than 120 countries. Airlines, OEMs, maintenance organizations and leasing companies receive worldwide support through integrated maintenance facilities, technical services, sales operations and twenty four hour Aircraft on Ground response.

In aviation, success is measured by time in the air, not time on the ground. That reality makes dependable MRO capabilities a true competitive advantage. By bringing together maintenance, engine leasing, technical expertise and lifecycle asset management within a single integrated platform, WLFC is helping operators navigate a complex aviation landscape with greater confidence and efficiency. It is this ability to keep aircraft flying while simplifying fleet operations that sets WLFC apart and makes its recognition as the Top MRO Services 2026 a well-earned acknowledgment of its leadership in the global aviation industry.