Audax Private Equity and Greenbriar Complete Sale of Alliance Ground International

BOSTON & GREENWICH, Conn.--(BUSINESS WIRE)--Audax Private Equity (“Audax”) and Greenbriar Equity Group (“Greenbriar”) announced today they completed the sale of Alliance Ground International (“AGI”), a leading North American airport services provider, to Lone Star Funds (“Lone Star”). The terms of the transaction are not disclosed. Based in Miami, with a workforce of over 12,000 professionals as of March 2026, AGI provides mission-critical outsourced services that enable the efficient movement.