Amentum Holdings, Inc. (formally Amentum Government Services Holding LLC) is an American government and commercial services contractor based in Chantilly, Virginia.[4][5] The company was formed in 2020 from the spinout of AECOM's Management Services / federal group.[6] After Leidos, it is the second-largest government services (non equipment producing) contractor in the US government contracting market.[7]
History
Amentum was founded in 2020 as a spinout of the Management Services Group of AECOM, consisting of the non-construction parts of the company's federal work as well as its commercial operations and maintenance business. This came as a result of a process by AECOM to realign its business to focus more clearly on the architect, engineering, and construction market.[8]
On the 27th September 2024 Amentum announced the completion of its merger with Jacobs Solutions Inc Critical Mission Solutions and Cyber and Intelligence businesses. [10]
On October 1st, 2024, Amentum became a publicly traded company on the NYSE under the ticker symbol "AMTM", becoming a part of the S&P 500. [11]
Growth through acquisitions
As part of the strategy by its owners, Amentum has pursued acquisitions of other government contractors including: