Insurance Brokerage M&A Activity Hits Third-Highest Volume on Record in 2024

Insurance brokerage M&A activity reached extraordinary heights in 2024, with 847 announced transactions marking the third-highest volume on record and a 5% increase over 2023, according to MarshBerry’s newly released 2024 M&A Year in Review.
“As industry consolidation accelerates, leaders must think beyond transaction value and consider how they differentiate and deliver in a more competitive, client-driven marketplace,” noted Phil Trem, president of financial advisory for MarshBerry.
Mega-Deals Reshape Industry Landscape
The insurance distribution marketplace witnessed several blockbuster transactions in 2024 that fundamentally altered the competitive landscape, according to the report. Leading the way was Arthur J. Gallagher & Co.’s $13.45 billion acquisition of Assured Partners, creating one of the largest insurance brokerages globally. Not to be outdone, Aon PLC completed a $13 billion acquisition of NFP Corp., significantly expanding its market presence. Marsh & McLennan also made headlines with its $7.75 billion purchase of McGriff Insurance Services.
These mega-deals represent more than just headline-grabbing numbers — they signal a strategic repositioning by industry leaders to achieve greater scale, specialized capabilities, and market presence, according to MarshBerry.
Market Dynamics Create Both Pressure and Opportunity
A significant imbalance continues to characterize the M&A marketplace, with buyer demand still exceeding seller supply by two to three times, Marsh Berry reported. This persistent gap has maintained upward pressure on valuations and created a favorable environment for potential sellers. The momentum shows no signs of slowing, with early 2025 deal activity already pacing 25% ahead of the previous year, the company noted.
Adding to the sector’s attractiveness, the U.S. property and casualty sector experienced a remarkable financial turnaround in 2024. Through the third quarter, the P&C insurance sector posted $4.1 billion in underwriting profit, a dramatic reversal from the $32.1 billion loss recorded during the same period in 2023. This improved profitability strengthens the financial foundation of many potential acquisition targets and enhances the sector’s appeal to investors, according to MarshBerry.
However, these dynamics create significant strategic questions for brokers, MarshBerry noted. The increasing consolidation means remaining independent requires thoughtful planning and substantial investment. Smaller and mid-sized firms face growing competitive pressures from these larger, more scaled organizations with expanded capabilities and specialized expertise.
Regardless of strategic path, MarshBerry emphasizes that firms must adapt to an increasingly competitive, client-driven marketplace. “The firms that will thrive are those who make strategic investments in talent, data, and specialization—or partner wisely to accelerate growth,” noted Trem.
Obtain the full report here. &