Aircraft Engine & Parts Mfrs

The 296 aircraft engine and parts manufacturers in the US produce civilian and military aircraft engines, engine parts and accessories, other aircraft parts and subassemblies, and auxiliary equipment for aircraft. They may also provide design and development services for new engines and parts, as well as support and repair services for existing products.

Government Regulations and Policies

The aircraft industry is highly regulated by the Federal Aviation Administration in the United States, and equivalent regulatory agencies in other countries.

Availability of Raw Materials

Many expensive and sometimes rare specialty metals are used in the manufacture of aircraft engines and parts.

Nov 2, 2026 - Boeing Makes Headway After Years of Setbacks

• US transportation equipment orders fell 0.6% in August 2026, marking their third decline in four months, according to the US Department of Commerce. The decline came despite stronger business investment in other sectors and reflected weaker demand for commercial aircraft and motor vehicles. However, aircraft manufacturer Boeing continues to recover from years of production setbacks and safety problems. The company delivered 475 commercial aircraft through September 2026, up 8% from a year earlier, but still trailed European rival Airbus, which delivered 547 planes during the same period. Boeing delivered 600 aircraft in 2025, rebounding sharply from just 348 in 2024. The company also secured 165 new aircraft orders in September, including 100 jets for Turkish Airlines. Despite improving production, Boeing continues to struggle with manufacturing bottlenecks and ended September with a backlog of about 6,370 aircraft.
• Aircraft engine manufacturers pushed production higher after years of supply-chain constraints limited deliveries. GE Aerospace increased total engine deliveries 31% in the first half of 2026, including a 41% jump in LEAP engines, as more material flowed from key suppliers. The company said supplier inputs rose by double digits both from the previous quarter and a year earlier. Rolls-Royce also accelerated production, delivering 279 original-equipment engines during the first half, 42 more than a year earlier, while maintaining a 2026 target of 550 to 600 deliveries. Pratt & Whitney faces similar pressure to expand capacity as its GTF backlog tops 8,000 engines; the company also has invested more than $1 billion over five years to expand and modernize military-engine production. Even with output rising, shortages of components and repair capacity continue to constrain how quickly manufacturers can turn enormous order books into finished engines.
• Aircraft engine manufacturers continue to face persistent supply chain bottlenecks that are limiting production despite strong demand from Boeing, Airbus, and airlines worldwide. Shortages of investment castings, forgings, turbine blades, and other high-temperature engine components have become structural constraints, while limited supplies of skilled labor and specialized raw materials are extending lead times for both new engines and replacement parts. According to the International Air Transport Association, maintenance and supply chain disruptions added about $5.7 billion in aircraft leasing and maintenance costs during 2025, as airlines kept older aircraft in service longer while waiting for new engines and overhaul slots. With manufacturers forced to divide limited production capacity between new engines and aftermarket demand, industry analysts expect supply chain challenges to remain a key factor affecting aircraft deliveries and engine production for the next several years.
• New orders for non-defense aircraft and parts climbed to $13.9 billion in February, according to the latest US Census Bureau data, offering a reminder that the aircraft manufacturing sector is still navigating plenty of turbulence - but may be finding steadier air. Orders plunged 42.4% from the previous month, yet remained up 24.1% year over year, highlighting the industry’s continued stop-and-start recovery amid cautious airline spending and uneven production schedules. Demand has been whipsawed in recent months by shifting order activity at Boeing and Airbus, persistent supply chain bottlenecks, and broader economic uncertainty that has made carriers more selective with major aircraft investments. At the same time, manufacturers and suppliers could catch a break from easing trade pressures after the Supreme Court moved to curb Trump-era tariffs, a decision that may help improve parts availability and take some pressure off production costs across the aerospace supply chain.

Industry size & Structure

The average aircraft engine and parts manufacturer employs 230 workers and generates $147 million in annual revenue.

• The industry includes about 295 firms, generating about $43.5 billion in annual sales and employing more than 68,350 workers.
• The aircraft engine and parts industry is a high technology-driven manufacturing business, characterized by a few large engine and aircraft manufacturers working in close collaboration with many smaller, highly specialized engine subassembly and parts manufacturers.
• About 70% of the industry's establishments have 100 or fewer employees, yet the largest manufacturers employ over 80% of the total industry workforce.
• The largest engine manufacturers, in order of worldwide market share, are GE Aviation, Rolls-Royce, and Pratt-Whitney.
• Most engine and aircraft parts manufacturers sell to civilian, commercial and defense aircraft manufacturers, but usually the end-user customer, such as a commercial airline, dictates which competitive engine and subsystems will be installed in their aircraft.
• Large commercial aircraft manufacturing customers include Boeing, Airbus, Bombardier, and Embraer. The largest general aviation manufacturing customers are Cessna, Cirrus Aircraft, Diamond Aircraft, Mooney, and Piper.
• The largest numbers of industry-related manufacturers are in California, Connecticut, Florida, Texas, Ohio, Michigan, and Arizona.