The largest P&C insurers in the United States

This Top 100 U.S. Property & Casualty Insurance Companies directory is based on research data from rating agency A.M. Best.

Listing the top property and casualty insurance companies in the United States, this directory provides a simple way to analyse the top P&C insurance companies in the U.S.

The property and casualty insurance groups featured are ranked by net premiums written in 2021. You can sort the table by any of the headings and search it to analyse individual insurance companies.

Ranking	P/C insurance company name	2021 Net premiums written (US $ 000)	% change from previous year
1	State Farm Group	69,647,810	6.1
2	Berkshire Hathaway Ins	68,340,644	20.7
3	Progressive Ins Group	46,611,138	13.7
4	Allstate Ins Group	38,623,313	5.9
5	Liberty Mutual Ins Cos	36,138,703	3.1
6	Travelers Group	29,794,289	7.1
7	USAA Group	24,547,842	2.1
8	Chubb INA Group	21,704,092	10.6
9	Nationwide Group	18,823,680	4.9
10	Farmers Ins Group	15,964,977	-10.7
11	American Intl Group (AIG)	13,225,069	5.3
12	American Family Insurance Group	12,660,817	9.7
13	Hartford Ins Group	12,552,196	9
14	Fairfax Financial (USA) Group	10,409,209	21
15	Munich-American Hldg Corp Cos	9,784,220	38.6
16	Auto-Owners Ins Group	9,654,047	7.6
17	Tokio Marine US PC Group	8,188,441	12.4
18	W. R. Berkley Ins Group	8,002,745	20.8
19	Erie Ins Group	7,996,722	4.1
20	Everest Re US Group	7,736,535	16.1
21	CNA Ins Cos	7,634,801	3.5
22	Alleghany Ins Holdings Group	6,790,200	13
23	Cincinnati Ins Cos	6,297,092	10.7
24	FM Global Group	5,274,947	12.3
25	Great Amer P&C Ins Grp	5,234,028	10.6
26	Markel Corp Group	5,227,059	27.5
27	Zurich Finl Svcs NA Group	5,061,938	16.2
28	The Hanover Ins Grp Prop & Cas Cos	4,986,655	8.2
29	Kemper PC Companies	4,870,623	7.6
30	Sompo Hldgs US Group	4,626,736	38.9
31	Auto Club Enterprises Ins Group	4,604,414	3
32	CSAA Ins Group	4,151,795	6.9
33	Swiss Reinsurance Group	4,113,379	14.6
34	Mercury Gen Group	3,816,673	6.9
35	Arch Ins Group	3,488,717	10.3
36	Allianz US P&C Ins Companies	3,297,118	41.3
37	Selective Ins Group	3,189,713	15
38	QBE Americas Group	3,144,613	13.1
39	AXA U.S. Group	3,127,508	-4.6
40	Assurant P&C Group	3,055,173	4.3
41	Sentry Ins Group	2,849,732	11.2
42	Old Republic Ins Group	2,753,455	2.9
43	AmTrust Group	2,716,547	30.9
44	COUNTRY Financial PC Group	2,671,280	3.3
45	Auto Club Group	2,616,907	0.6
46	PartnerRe US Group	2,289,520	8.7
47	Scor US Group	2,280,883	3.9
48	AXIS US Operations	2,278,621	13.8
49	Amica Mutual Group	2,236,398	-2.9
50	Starr Intl Group	2,134,471	8
51	Shelter Ins Cos	2,046,658	4.7
52	EMC Ins Cos	2,029,002	4.4
53	Federated Mutual Group	1,970,109	8.4
54	NJM Ins Group	1,920,937	4.5
55	Westfield Group	1,920,682	7.3
56	Acuity, A Mutual Ins Co	1,888,911	11.5
57	State Ins Fund WC Fund	1,733,104	7.6
58	MAPFRE North America Group	1,676,647	-2.2
59	AF Group	1,621,158	1.3
60	Amer Natl Prop & Cas Companies	1,586,322	8.5
61	West Bend Mutual Ins Co	1,536,116	12.9
62	Southern Farm Bureau Cas Group	1,520,421	3.8
63	TN Farmers Ins Cos	1,508,309	4.1
64	Farm Bureau P&C Group	1,495,096	6.6
65	Core Specialty	1,469,190	180.9
66	Alfa Ins Group	1,445,883	3.9
67	IAT Ins Group	1,445,474	7.9
68	ICW Pool	1,396,103	13
69	Intact US Ins Group	1,379,334	12.2
70	Grange Ins Pool	1,374,160	3.8
71	Citizens Property Ins Corporation	1,358,442	44
72	Utica Natl Ins Group	1,314,665	10.2
73	Argo Group	1,300,061	6.4
74	Texas Farm Bureau Group	1,276,833	1.3
75	State Compensation Ins Fund	1,221,227	14.9
76	Doctors Co Ins Group	1,128,969	15.6
77	KY Farm Bureau Group	1,096,411	3.5
78	Envoca Mutual Ins Group	1,095,688	2.1
79	Universal Ins Hldgs Group	1,082,351	7.2
80	CUMIS Ins Society Group	1,069,679	10.5
81	RLI Group	1,057,533	18.5
82	RenaissanceRe US Group	1,037,058	37.5
83	NC Farm Bureau Ins Group	1,035,650	4.6
84	Mortgage Guar Group	969,078	4.3
85	Donegal Ins Group	961,854	3.1
86	TX Mutual Ins Co	957,323	-0.2
87	ProAssurance Group	950,416	-1.4
88	Radian Group	944,545	-6.6
89	Church Mutual Ins Group	934,049	3.2
90	Enact Mortgage Ins Group	914,150	2.2
91	United Fire & Cas Group	908,230	-10.2
92	FCCI Ins Group	907,548	5.3
93	Palisades Group	904,626	-1.5
94	Arbella Ins Group	834,514	6.9
95	Secura Ins Cos	805,519	10.7
96	Aspen US Ins Group	800,893	-18.9
97	MI Farm Bureau Group	797,531	2.7
98	Coaction Specialty Ins Group	788,603	12.5
99	Frankenmuth Ins Group	776,671	7.2
100	Penn NatI Ins Cos	771,248	2.8

Source: © A.M. Best Company, Inc. — used by permission.