he Ultimate 2025-2026 Guide to the Top Insurance Companies in the USA, UK, and Worldwide highlights the industry’s giants based on key metrics like total assets, net premiums written, revenue, and market influence. Data draws from recent 2025-2026 rankings by AM Best, S&P Global, Forbes, and other sources, reflecting performance through late 2024/early 2025 figures (with projections into 2026).
The global insurance sector remains resilient amid economic shifts, with strong growth in health, property/casualty (P&C), and life segments. Berkshire Hathaway has overtaken Allianz as the world’s largest by non-banking assets, while UnitedHealth Group dominates in premiums/revenue due to its health insurance focus.
Worldwide: The Global Leaders
Ranked primarily by non-banking assets (AM Best January 2026 rankings, reflecting 2024 data with 2025 updates), these are the dominant players operating across borders.
- Berkshire Hathaway Inc. (USA) — ~$1.15 trillion in assets Led by Warren Buffett, it tops the list after surpassing Allianz, with diverse holdings including major P&C operations.
- Allianz SE (Germany) — ~$1.09 trillion A longtime leader now in second, with strong global presence in life, health, and P&C.
- China Life Insurance (Group) Co. (China) — ~$1.02 trillion Massive in life insurance within the world’s largest market.
- Ping An Insurance (Group) Co. of China Ltd. (China) — High assets with rapid growth via tech integration.
- Prudential Financial Inc. (USA) — Strong in life and retirement products.
Other notables: AXA S.A. (France), Legal & General Group (UK), Manulife Financial (Canada), MetLife (USA), and UnitedHealth Group (USA, leading in net premiums written at ~$308-435 billion TTM revenue).
By revenue/premiums, UnitedHealth Group often ranks #1 globally due to its health focus, followed by Berkshire Hathaway and Chinese giants.
USA: Top Insurance Companies
The U.S. market emphasizes health, auto, home, and life. Key players include:
- UnitedHealth Group — Dominant in health insurance; massive revenue leader.
- Berkshire Hathaway (via subsidiaries like GEICO) — Tops many P&C and overall asset rankings.
- State Farm — #1 in auto/P&C market share; strong customer trust.
- Progressive — Rapidly rising in auto; fourth-largest P&C by premiums in recent years.
- Allstate, Nationwide, Liberty Mutual, Farmers, and USAA (highly rated for service).
For life insurance, standouts include Northwestern Mutual, New York Life, MassMutual, and State Farm (A++ ratings). Forbes and JD Power rankings highlight trust and satisfaction leaders like Mutual of Omaha and State Farm.
UK: Leading Insurance Companies
The UK focuses on general (P&C), life, and health. Aviva leads domestic rankings.
- Aviva — Tops UK general insurers by gross written premium (GWP); extended lead after acquisitions.
- AXA (including AXA Health) — Strong in health and general; high customer satisfaction.
- Allianz UK — Excellent ratings for service.
- Direct Line Group (now under Aviva influence), Legal & General (major in life/pensions), Bupa (health specialist), RSA, and Zurich.
Aviva Insurance Limited ranks #1 in UK top 100 lists, with strong performers in car, home, and life like Vitality, Royal London, and HSBC Life.
Key Trends for 2025-2026
- Growth drivers — Health and digital innovation (e.g., Ping An, UnitedHealth); P&C rate stabilization after hard cycles.
- Challenges — Social inflation, claims severity, and currency impacts on global players.
- Customer focus — High-rated firms excel in claims handling, digital tools, and value (e.g., Forbes/Statista global satisfaction rankings favor responsive providers like AXA UK).
This guide spotlights scale and influence, but the “best” company depends on your needs (e.g., auto vs. life, price vs. service). Always compare quotes and check current ratings for your situation. The industry evolves quickly—2026 may see continued consolidation and tech-driven shifts.