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May 20, 2026

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aerospace parts and services

Graham Adds to Aviation Platform

September 18, 2018 by John McNulty

Desser, a portfolio company of Graham Partners, has acquired AOG Aviation Spares, LLC and Seginus, LLC (together AOG/Seginus).

AOG/Seginus is a provider of component repair and overhaul services to the domestic and international aerospace industry and also produces replacement PMA (Parts Manufacturer Approval) parts that are sold to airline operators, repair stations, and global distributors.

AOG/Seginus is based in the Chicago exurb of Oswego, IL (www.aogrepairs.com) (www.seginusinc.com).

Desser, acquired by Graham Partners in August 2014, is a supplier of aircraft tires and tubes as well as other aviation products to customers in over 100 countries. The company also holds Federal Aviation Administration (FAA) and European Aviation Safety Agency (EASA) approvals for high-speed aircraft tire retreading and wheel and brake services, and produces aviation transparencies – such as aircraft windshields, windscreens, canopies, and windows – for aftermarket applications.

Desser is AS9100 approved and has facilities in Australia, the United Kingdom, and the United States to support commercial airlines, repair stations, and OEMs worldwide through its affiliates Aero Wheel & Brake Service, Cee Bailey’s Aircraft Plastics, Watts Aviation, Rotable Repairs, and now AOG Aviation Spares, and Seginus. Desser is headquartered near Los Angeles in Montebello, CA (www.desser.com).

The buy of AOG/Seginus adds a complementary business to the Desser platform, expanding Desser’s products and services and providing cross-selling opportunities. Additionally, the acquisition will expand Desser’s in-house PMA expertise and build Desser’s line of proprietary products.

“AOG/Seginus has experienced significant growth driven by the company’s impressive product and repair development capabilities and strong customer relationships,” said Chris Lawler, Managing Principal at Graham Partners. “We are excited to add AOG/Seginus’ engineering depth and experience to the combined business, which will be a valuable asset as Desser launches its own proprietary products.”

“Add-on acquisitions have always been a fundamental component of value creation for our companies, and this acquisition is no exception,” said Steven Graham, Senior Managing Principal of Graham Partners. “We look forward to integrating AOG/Seginus and realizing the potential of this combination.”

Graham Partners acquires companies with EBITDA between $5 million and $50 million and will invest in smaller companies as add-on acquisitions to existing portfolio companies. The firm is sponsored by the Graham Group, an industrial and investment concern with interests in plastics, packaging, machinery, building products, and outsourced manufacturing. Graham Partners was founded in 1988 and is headquartered in Philadelphia (www.grahampartners.net).

© 2018 Private Equity Professional | September 18, 2018

Filed Under: Add-on, Transactions Tagged With: aerospace parts and services, FS

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