Mercer, Marsh’s HR and investment consulting unit, posted Q4 revenue of $1.5 billion, a 3% increase (5% underlying). Growth was led by Wealth (up 4% underlying), Health (up 5% underlying), and Career (up 7% underlying). For the full year, Mercer’s revenue increased 3% (5% underlying). Oliver Wyman, the firm’s management consulting arm, reported Q4 revenue of $954 million, up 11% (7% underlying). For the full year, Oliver Wyman’s revenue increased 9% (6% underlying) to $3.4 billion.
Marsh McLennan completed the acquisition of McGriff Insurance Services, LLC for $7.75 billion in November 2024, marking the largest acquisition in the company’s history. The