East Alton, IL– May 21, 2025– West Star Aviation is proud to announce a significant milestone following its acquisition by Greenbriar Equity Group, L.P., from The Sterling Group. This partnership represents an exciting evolution in West Star’s ongoing commitment to delivering exceptional maintenance, repair, and overhaul (MRO) services for the business aviation sector.

Since its founding in 1947, West Star has remained dedicated to delivering exceptional service to its customers. Greenbriar’s investment reinforces this commitment and aligns seamlessly with the company’s strategic focus on expanding its capabilities with ongoing investments in infrastructure and people while enhancing the overall customer experience.

Stephen Maiden, CEO of West Star, stated, “We are on the brink of an exciting evolution, and we couldn’t be more energized by the opportunities ahead. Greenbriar’s extensive expertise in the aviation sector will enable us to serve our customers more effectively while ensuring the steadfast support of our remarkable workforce—an essential foundation of our success.”

This partnership builds on the strong foundation established during West Star’s time with Sterling, and the company extends its heartfelt gratitude for their unwavering support throughout their ownership. The experiences gained during this period have finely shaped West Star into a leader in the industry, and the company deeply appreciates the opportunities provided by the Sterling team.

As the company moves forward, it remains vigilant in its focus on its customers’ unique needs and will leverage the talents of its workforce to drive its goals. With comprehensive MRO capabilities across all major OEM aircraft and the nation’s largest Aircraft On Ground (AOG) technician network, West Star is well-positioned to continue delivering high-quality services and address customer needs promptly.

“We are confident in the impactful opportunities this partnership with Greenbriar brings for our future. It embodies our unwavering dedication to service and the consistent support we aim to provide to our exceptional team and valued customers,” said Maiden.

West Star Aviation is poised for this new era of growth and innovation and looks forward to enhancing its capabilities and expanding its reach within the business aviation market, all while prioritizing the needs of its clients and outstanding workforce.

About West Star Aviation
With more than 78 years of industry experience, West Star Aviation stands as a leading independent Maintenance, Repair, and Overhaul (MRO) provider. Employing over 3,000 professionals, West Star offers comprehensive services from our strategically located full-service facilities in East Alton, IL; Grand Junction, CO; Chattanooga, TN; Millville, NJ; Perryville, MO; and Statesville, NC, as well as satellite locations in Denver, Houston, Minneapolis, and Chicago. The company’s extensive capabilities encompass maintenance, paint, interior, and avionics services, supported by the largest Aircraft On Ground (AOG) network in the country, ensuring prompt and reliable mobile repair services nationwide.