A Look at the Latest Data on Insurer Premiums & Market Share as of October 2025
Insurance Market Share Reports & Industry Trends

Mutual Insurers’ U.S. Market Share Holds at 40%, With New England Ranging From 31% to 46%
Annual NAMIC-Aon report takes a look at the state of Mutuals each year
Top Boiler & Machinery Insurers in Massachusetts & New England
Massachusetts is the largest market for Boiler & Machinery Insurance in NE
The Top Surety Companies in Massachusetts & New England
Introduction to the New England Surety Insurance Marketplace
Best’s Market Segment Report: AM Best Maintains Outlook on US Personal Lines Insurance Segment at Stable
Meaningful Improvement in Underwriting stems from aggressive rate increases and portfolio management.