The insurance brokering industry worldwide remains fiercely competitive, with the top 20 firms— including the top four—holding steady in the 2025 Best’s Review rankings based on 2024 revenues.
Marsh McLennan continues its dominance for the 15th straight year, boosting its revenue by $1.72 billion to a staggering $24.46 billion. Meanwhile, the landscape is shifting—new players are making their mark, and seasoned leaders are solidifying their positions.
Aon holds its ground at No. 2, while Gallagher and WTW round out the top four, maintaining their momentum from last year. Notable moves include Alliant Insurance Services jumping to No. 5 from No. 8, Howden climbing to No. 10, and Acrisure experiencing a slight dip to No. 8.
In a game-changing move, Brown & Brown announced a major strategic acquisition: purchasing RSC Topco, the holding company of No. 17, Accession Risk Management Group. This $9.83 billion deal—set to close in Q3—marks the largest in the firm’s history and highlights the ongoing consolidation shaping our industry.
For brokers navigating this dynamic environment, these shifts present exciting opportunities to innovate, grow, and redefine success.
Leave A Reply