[3] It was founded in 2007 and is headquartered in New York City, with 20 offices in North and South America, Europe, the Middle East, Asia and Australia.

Matthew Prest, the restructuring head of European corporate finance firm Close Brothers,[8][9] soon followed with his team to join Moelis in London.

[11] In June 2009 Mark Aedy joined Moelis as head of EMEA Investment Banking based in the London office.

[21] In February 2015, the firm opened its Washington DC office, following the hire of Eric Cantor, former House Majority Leader, in September 2014.

[citation needed] On June 9, 2024, one of the firm's managing directors who leads the business services sector, Jonathan Kaye, was filmed in Brooklyn punching a person in the face.