Who are the largest property and casualty companies in the United States?

Top 25 U.S. Property And Casualty Companies

The Top 10 Insurance Companies Account For Almost 50% Of The Premiums Collected From The Insureds.

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The list is below is a market share report published in March of 2020 by the National Association of Insurance Commissioners (NAIC).

The National Association of Insurance Commissioners has ranked insurers from top-down order based on direct premium payments for policies written in 2019 for all lines of property/casualty insurance.1 The different lines of insurance included in the top 25 companies displayed in the rankings below are commercial auto, personal auto, workers’ compensation, homeowners, medical professional liability, and other liability (This list excludes auto liability).

25 Largest Property/Casualty Insurers
Rank	Insurer Name
1	State Farm
2	Berkshire Hathaway	Berkshire Hathaway owns many insurers such as GEICO, National Indemnity, MedPro Group, General Reinsurance Company, and BoatU.S.
3	Progressive
4	Liberty Mutual Grp.	Liberty Mutual Offers residential, commercial, and personal insurance coverage. Owns Ironshore, Ohio Casualty, Safeco, and Peerless Insurance.
5	Allstate	Sells personal, residential, and commercial coverages. Allstate also owns Esurance who is an online seller of personal insurance.
6	Travelers	Travelers Insurance also owns St. Paul Fire, Marine, and USF&G. They sell residential and commercial insurance
7	USAA	USAA insurance is for Military and Military Families.
8	Chubb Ltd. Grp	This firm was purchased by ACE in 2016 and the combined firm is called Chubb.
9	Farmers Ins. Grp.	US Farmers Insurance Company is a wholly-owned subsidiary of Zurich Insurance.
10	Nationwide
11	AIG	AIG owns dozens of subsidiaries’ insurance companies worldwide.
12	Zurich Ins. Grp.	Zurich Insurance Company owns Farmers Insurance Group.
13	Hartford
14	American Family
15	CNA
16	Auto Owners
17	Assurant
18	Erie Ins. Group	.
19	Tokyo Marine Holdings	Tokyo Marine Holdings owns the Philadelphia Insurance Companies, which offers commercial coverages, and professional liability
20	Fairfax Financial Group	Fairfax Financial Group owns several insurers that operate in the U.S., including Allied World, Zenith National (workers compensation insurance), and Crum & Forster (which sells property & casualty coverages).
21	AmTrust Fin. Serv. Group
22	W.R. Berkley	W.R. Berkley Companies include Admiral Insurance, Acadia Insurance, and many other subsidiaries that use the Berkley name.
23	AXA Insurance Group	AXA Insurance Group also owns AXA XL.
24	Markel Corp.
25	Allianz