Based in Radnor, Pennsylvania, United States, Triumph engineers, designs, and manufactures aircraft components, systems, and accessories.

Richard Ill, who led Triumph Group for several years, was promoted to president of Alco Diversified Services.

In 1992, the corporation made an announcement that it was trying to sell Alco Diversified Services and purchase 49.9% percent of IMM Office Systems Holding.

This was an excellent fit for Triumph Air Repair, as much of their work consisted of servicing the Boeing 727 and 737 aircraft.

In 1998, Triumph acquired four additional companies, bringing its grand total of subsidiaries to eighteen and its employee count to over two thousand in early 1999.

It was at this time that Triumph purchased Ralee Engineering, a manufacturer of gigantic aircraft components and assemblies.

[8] In 2003, the Boeing Company's failing Spokane, Washington facility was acquired, which is now known as Triumph Composite Systems.

[10] Shortly thereafter, Triumph acquired the Parker Hannifin Corporation United Aircraft Products Division and Rolls-Royce Gear Systems.

[16] In December 2015, Triumph Group Inc. announced that Daniel J. Crowley would be named president and chief executive officer effective 4 January 2016.

[17] Ill was also the chairman since 2009, so when he took over the CEO position after Frisby left, he was succeeded by one of the company's board members, U.S. Air Force (Ret.)

[20] In 2023 Triumph Group announced that it had entered into a Memorandum of Understanding (MOU) with Stirling Dynamics with the aim to collaborate on advancing opportunities in the electro-mechanical actuation market.

Triumph Integrated Systems designs, develops and tests electrical components for use in military and commercial aircraft.

Triumph Product Support maintains military and commercial aircraft parts, accessories and airborne electrical power generators.