National Underwriter's Top 100 and Heads of the Lines lists — the data for which is provided by S&P Global Market Intelligence — offer a look at who's on top, who's taken a hit, and who's making progress in a crowded and highly competitive P&C market.

It also serves as a reminder that when it comes to premium earners in the top 100 groups and companies, there is the Top 10 — and then there's Everyone Else. The top 10 groups (ranked here by net premiums written, in $000s) represent some $182 billion (nearly 40%) of the approximate $473 billion total NPW among the top 100.

This week and next we'll bring you a comprehensive look at the top performers in P&C, a look at the best (and worst) in industry combined ratios, and the top writers in several select P&C lines. (The entire Top 100 package is also featured in NU's July print edition.)

Recommended For You

Want to continue reading?
Become a Free PropertyCasualty360 Digital Reader

Your access to unlimited PropertyCasualty360 content isn’t changing.
Once you are an ALM digital member, you’ll receive:

  • Breaking insurance news and analysis, on-site and via our newsletters and custom alerts
  • Weekly Insurance Speak podcast featuring exclusive interviews with industry leaders
  • Educational webcasts, white papers, and ebooks from industry thought leaders
  • Critical converage of the employee benefits and financial advisory markets on our other ALM sites, BenefitsPRO and ThinkAdvisor
NOT FOR REPRINT

© 2025 ALM Global, LLC, All Rights Reserved. Request academic re-use from www.copyright.com. All other uses, submit a request to [email protected]. For more information visit Asset & Logo Licensing.

Shawn Moynihan

Shawn Moynihan is Editor-in-Chief of National Underwriter Property & Casualty. A St. John’s University alum, Moynihan has earned 11 Jesse H. Neal Awards, the Pulitzers of the business press; seven Azbee Awards, from the American Society of Business Press Editors; two Folio Awards; and a SABEW award, from the Society of American Business Editors & Writers. Prior to joining ALM, he served as Managing Editor/Online Editor of journalism institution Editor & Publisher, the trade bible of the newspaper industry. Moynihan also has held editorial positions with AOL, Metro New York, and Newhouse Newspapers. He can be reached at [email protected].