Guy Carpenter to be rebranded as Marsh Re

From January 2026, Marsh McLennan will change its brand name to Marsh and its reinsurance broking arm Guy Carpenter will go to market after a transition period as Marsh Re from 2027. It’s not yet clear what this means for the specialist capital markets, investment banking and insurance-linked securities (ILS) broker-dealer arm GC Securities.

“In an increasingly complex environment, clients are seeking advice, solutions and insights that draw on expertise from across our firm,” John Doyle, President and CEO of Marsh McLennan explained today.

“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.”

“Today, Marsh stands for excellence in risk advising and insurance broking. The new Marsh brand will also symbolize everything our company has to offer: a distinct combination of capabilities in professional services, scale and specialization for clients, enabled by cutting-edge AI and analytics,” added Doyle.

“Unifying under one brand will accelerate the impact we deliver to the marketplace and give clients even greater confidence to thrive through the power of perspective,” explained John Jones, Chief Marketing and Communications Officer of Marsh McLennan.

It marks the end of an era for the Guy Carpenter name in reinsurance, a broking brand that has been synonymous in the market since as far back as its founding in 1922 and was acquired by Marsh & McLennan Companies in 1923.

In the catastrophe bond and insurance-linked securities (ILS) marketplace, the GC Securities brand has been one of the leading structuring, bookrunning, broker-dealer units since the ILS market’s inception in the 1990’s.

GC Securities currently sits second in our catastrophe bond issuance banks & brokers leaderboard, with almost $21 billion in cat bond risk capital outstanding at this time.

A Marsh McLennan spokesperson told us that sub-brands such as GC Securities will be reviewed over the transition period, so we may not know the future for that brand until closer to 2027 it seems.

Marsh McLennan’s four main brands will adopt their new names from 2027, with Marsh and Mercer each set to go to market under the new Marsh brand, Guy Carpenter as Marsh Re and Oliver Wyman as Oliver Wyman, a Marsh business, while its operating unit Oliver Wyman Group will become Marsh Management Consulting.