Marsh McLennan to Rebrand as Marsh

• By: AnneMarie McPherson Spears
• October 16, 2025

This week, Marsh McLennan announced it is changing its brand to Marsh, effective January 2026. The company has also created a new unit, Business and Client Services, to centralize investments in operations, data, artificial intelligence (AI) and analytics.

Also, the company’s stock ticker symbol will become “MRSH” in January.

Following a transition period to the new Marsh brand, the company’s four businesses will adopt the Marsh brand beginning in 2027. Marsh and Mercer will each go to market under the new Marsh brand, and Guy Carpenter will become Marsh Re. Oliver Wyman will go to market as Oliver Wyman, a Marsh business, and the operating unit Oliver Wyman Group will become Marsh Management Consulting.

“In an increasingly complex environment, clients are seeking advice, solutions and insights that draw on expertise from across our firm,” said John Doyle, president and CEO of Marsh McLennan. “The changes we announce today reflect the way we continue to bring our company together to better help our clients overcome challenges and find opportunity.” 

Meanwhile, the new Business and Client Services unit brings together the company’s technology, data and operations team under the leadership of Paul Beswick, chief information and operations officer at Marsh McLennan. The company says the change will allow them to more efficiently incorporate technologies such as AI.  

“The rapid development of AI, and the insights it can derive from our data, will help unlock new opportunities for our clients and colleagues,” Beswick said. “By harnessing this powerful tool to simplify operations and elevate service quality, we will drive innovation and deliver efficiencies to reinvest in client value and growth.”

2026 will also see another notable insurance name change, with Liberty Mutual Insurance to retire the Safeco Insurance brand and sell all its personal lines products solely under the Liberty Mutual brand.

In 2024, Marsh McLennan made agency mergers & acquisitions headlines by acquiring McGriff Insurance Services for $7.75 billion—joining a trend of mega deals last year. While independent agency M&A has leveled off so far in 2025, more large deals are predicted to fuel growth, according to OPTIS Partners.

AnneMarie McPherson Spears is IA news editor.