California insurance market share

Top writers by direct premiums written, from the California regulator's market share report. Companies marked agent only sell only through independent agents: no website quote, no call center, and they never show up on comparison sites. The agent-only page explains how that works.

Auto insurance, 2025

Rank	Company	Direct premiums written	Market share
1	State Farm Mut Auto Ins Co	$6,692,734,680	13.8%
2	Interins Exch Of The Automobile Club	$4,892,369,423	10.1%
3	Geico Gen Ins Co	$4,752,424,632	9.8%
4	CSAA Ins Exch	$3,887,376,030	8.0%
5	Allstate Northbrook Ind Co	$3,108,073,014	6.4%
6	Mercury Ins Co	$2,692,743,127	5.6%
7	Farmers Ins Exch	$2,176,219,532	4.5%
8	Infinity Ins Co	$2,079,921,343	4.3%
9	United Financial Cas Co	$1,838,185,730	3.8%
10	Drive Ins Co	$945,767,198	2.0%
11	Safeco Ins Co Of Ameragent only	$897,017,518	1.9%
12	Aspire Gen Ins Co	$874,224,102	1.8%
13	American Family Connect Prop & Cas I	$860,498,107	1.8%
14	Integon Natl Ins Co	$851,667,397	1.8%
15	USAA Cas Ins Co	$794,331,232	1.6%
16	Wawanesa Gen Ins Co	$791,634,544	1.6%
17	Progressive Select Ins Co	$749,137,291	1.5%
18	Tesla Ins Co	$725,036,860	1.5%
19	USAA Gen Ind Co	$596,750,716	1.2%
20	United Serv Automobile Assn	$552,550,316	1.1%
21	Garrison Prop & Cas Ins Co	$543,083,187	1.1%
22	Coast Natl Ins Co	$504,802,201	1.0%
23	Travelers Commercial Ins Co	$488,659,521	1.0%
24	GEICO Protection Ins Co	$468,665,625	1.0%
25	21st Century Cas Co	$455,049,841	0.9%
26	Mid Century Ins Co	$423,012,213	0.9%
27	Nationwide Ins Co Of Ameragent only	$421,370,391	0.9%
28	Viking Ins Co Of WI	$348,905,891	0.7%
29	California Automobile Ins Co	$331,094,257	0.7%
30	State Natl Ins Co Inc	$321,564,659	0.7%
31	Integon Preferred Ins Co	$289,653,968	0.6%
32	California Cas Ind Exch	$233,414,389	0.5%
33	Loya Cas Ins Co	$222,399,499	0.5%
34	Hartford Underwriters Ins Co	$198,666,659	0.4%
35	Amica Mut Ins Co	$150,978,616	0.3%
36	Essentia Ins Co	$126,052,060	0.3%
37	Anchor Gen Ins Co	$122,087,339	0.3%
38	Permanent Gen Assur Corp	$119,232,598	0.2%
39	Encompass Ins Co	$115,511,139	0.2%
40	Root Ins Co	$105,572,371	0.2%
41	Federal Ins Coagent only	$90,961,771	0.2%
42	Progressive Direct Ins Co	$90,729,580	0.2%
43	California Capital Ins Coagent only	$83,625,507	0.2%
44	Incline Natl Ins Co	$81,379,352	0.2%
45	American Natl Prop & Cas Co	$70,125,356	0.1%
46	Horace Mann Ins Co	$64,730,402	0.1%
47	Foremost Ins Co Grand Rapids MI	$63,250,829	0.1%
48	Metromile Ins Co	$61,008,931	0.1%
49	Seaview Ins Co	$60,278,633	0.1%
50	Knightbrook Ins Co	$56,022,321	0.1%
51	Trumbull Ins Co	$55,980,196	0.1%
52	CSAA Gen Ins Co	$53,732,589	0.1%
53	Privilege Underwriters Recp Exch	$53,035,527	0.1%
54	Progressive Cas Ins Co	$45,160,543	0.1%
55	Geico Ind Co	$40,285,129	0.1%
56	Granwest Ins Co	$38,863,252	0.1%
57	National Gen Ins Co	$36,815,574	0.1%
58	Commerce W Ins Co	$35,184,365	0.1%
59	Orion Ind Co	$35,042,198	0.1%
60	Travelers Prop Cas Ins Co	$34,661,498	0.1%
61	Safeway Ins Co	$34,651,633	0.1%
62	American States Preferred Ins Co	$33,562,478	0.1%
63	The Cincinnati Ins Coagent only	$29,989,364	0.1%
64	AIG Prop Cas Co	$28,040,647	0.1%
65	Hartford Cas Ins Co	$27,815,717	0.1%
66	National Gen Assur Co	$27,799,509	0.1%
67	Bankers Standard Ins Coagent only	$27,762,741	0.1%
68	Allstate Ins Co	$27,092,902	0.1%
69	Nations Ins Co	$26,547,674	0.1%
70	Response Ind Co Of CA	$24,033,239	0.0%
71	First Acceptance Ins Co Inc	$22,168,507	0.0%
72	Horace Mann Prop & Cas Ins Co	$20,003,964	0.0%
73	Accredited Surety & Cas Co Inc	$19,570,071	0.0%
74	Mapfre Ins Co	$15,404,589	0.0%
75	Qualitas Ins Co	$13,250,133	0.0%
76	Stillwater Ins Co	$10,932,193	0.0%
77	American Alt Ins Corp	$10,659,184	0.0%
78	Philadelphia Ind Ins Co	$10,488,199	0.0%
79	21st Century Centennial Ins Co	$8,750,379	0.0%
80	Sterling Cas Ins Co	$8,301,061	0.0%
81	Crestbrook Ins Coagent only	$8,209,780	0.0%
82	Safeco Ins Co Of ILagent only	$7,903,957	0.0%
83	American Modern Prop & Cas Ins Co	$7,743,935	0.0%
84	Nationwide Mut Ins Coagent only	$7,703,850	0.0%
85	National Specialty Ins Co	$6,769,960	0.0%
86	Spinnaker Ins Co	$5,827,089	0.0%
87	MIC Gen Ins Corp	$5,089,868	0.0%
88	Pacific Star Ins Co	$4,333,675	0.0%
89	Eagle W Ins Coagent only	$3,158,228	0.0%
90	Trisura Ins Co	$2,887,382	0.0%
91	Trans Pacific Ins Co	$2,363,949	0.0%
92	Century Natl Ins Co	$1,797,676	0.0%
93	Pacific Specialty Ins Co	$1,626,697	0.0%
94	First Natl Ins Co Of Amer	$1,113,947	0.0%
95	Foremost Prop & Cas Ins Co	$988,675	0.0%
96	National Unity Ins Co	$951,160	0.0%
97	American Bankers Ins Co Of FL	$838,347	0.0%
98	Equity Ins Co	$618,090	0.0%
99	Markel Amer Ins Co	$596,713	0.0%
100	XL Specialty Ins Co	$585,159	0.0%
101	Twin City Fire Ins Co Co	$492,304	0.0%
102	Aegis Security Ins Co	$431,179	0.0%
103	Everest Natl Ins Co	$427,358	0.0%
104	Ocean Harbor Cas Ins Co	$416,062	0.0%
105	RiverStone Intl Ins Inc	$299,817	0.0%
106	QBE Ins Corp	$226,317	0.0%
107	Oregon Mut Ins Co	$67,005	0.0%
108	Starr Ind & Liab Co	$46,502	0.0%
109	DB Ins Co Ltd (US Branch)	$43,029	0.0%
110	Midvale Ind Co	$41,607	0.0%
111	Pharmacists Ins Co	$38,985	0.0%
112	MS Transverse Ins Co	$29,665	0.0%
113	Geico Cas Co	$18,154	0.0%
114	American Modern Home Ins Co	$7,437	0.0%
115	Incline Cas Co	$6,774	0.0%
116	Government Employees Ins Co	$6,539	0.0%
117	Nevada Gen Ins Co	$5,990	0.0%
118	American Family Home Ins Co	$304	0.0%

Homeowners insurance, 2025

Rank	Company	Direct premiums written	Market share
1	State Farm Gen Ins Co	$3,300,825,564	20.1%
2	California Automobile Ins Co	$1,214,926,899	7.4%
3	Farmers Ins Exch	$1,101,575,067	6.7%
4	CSAA Ins Exch	$1,066,974,077	6.5%
5	Interins Exch Of The Automobile Club	$1,033,249,605	6.3%
6	Fire Ins Exch	$851,003,997	5.2%
7	Allstate Ins Co	$821,527,205	5.0%
8	Standard Fire Ins Co	$663,221,410	4.0%
9	Homesite Ins Co Of The Midwest	$476,466,468	2.9%
10	Mid Century Ins Co	$413,274,532	2.5%
11	Sutton National Ins Co	$403,590,023	2.5%
12	United Serv Automobile Assn	$336,369,366	2.0%
13	General Ins Co Of Amer	$336,364,550	2.0%
14	USAA Cas Ins Co	$322,532,608	2.0%
15	Liberty Ins Corp	$252,852,036	1.5%
16	Federal Ins Coagent only	$228,798,736	1.4%
17	Nationwide Mut Ins Coagent only	$224,960,351	1.4%
18	Pacific Specialty Ins Co	$201,509,337	1.2%
19	USAA Gen Ind Co	$193,418,527	1.2%
20	Foremost Ins Co Grand Rapids MI	$154,092,864	0.9%
21	Homesite Ins Co Of CA	$152,453,590	0.9%
22	Garrison Prop & Cas Ins Co	$147,937,761	0.9%
23	DB Ins Co Ltd (US Branch)	$137,568,412	0.8%
24	Safeco Ins Co Of Ameragent only	$122,033,919	0.7%
25	Privilege Underwriters Recp Exch	$119,303,652	0.7%
26	American Bankers Ins Co Of FL	$107,846,633	0.7%
27	Spinnaker Ins Co	$106,240,102	0.6%
28	Amica Mut Ins Co	$105,281,106	0.6%
29	Bankers Standard Ins Coagent only	$97,775,651	0.6%
30	American Modern Prop & Cas Ins Co	$93,767,236	0.6%
31	Lemonade Ins Co	$93,330,222	0.6%
32	California Cas Ind Exch	$91,704,137	0.6%
33	Stillwater Ins Co	$90,347,587	0.5%
34	Safeco Ins Co Of ILagent only	$84,363,423	0.5%
35	Integon Natl Ins Co	$76,401,086	0.5%
36	California Capital Ins Coagent only	$75,933,447	0.5%
37	Residence Mut Ins Co	$75,302,321	0.5%
38	Zurich Amer Ins Co	$73,532,316	0.4%
39	ASI Select Ins Corp	$67,451,413	0.4%
40	Property & Cas Ins Co Of Hartford	$67,358,637	0.4%
41	First Natl Ins Co Of Amer	$61,255,556	0.4%
42	Wawanesa Gen Ins Co	$57,373,087	0.3%
43	Incline Cas Co	$56,380,332	0.3%
44	Aegis Security Ins Co	$55,094,639	0.3%
45	Universal N Amer Ins Co	$49,308,411	0.3%
46	American Family Connect Prop & Cas I	$47,511,657	0.3%
47	Liberty Mut Ins Co	$45,356,942	0.3%
48	QBE Ins Corp	$44,127,658	0.3%
49	Encompass Ins Co	$41,713,088	0.3%
50	The Cincinnati Ins Coagent only	$41,637,848	0.3%
51	Horace Mann Ins Co	$34,310,348	0.2%
52	Stillwater Prop & Cas Ins Co	$33,030,812	0.2%
53	Trumbull Ins Co	$31,600,846	0.2%
54	American Modern Home Ins Co	$20,529,722	0.1%
55	Response Ind Co Of CA	$20,208,739	0.1%
56	Metromile Ins Co	$17,156,959	0.1%
57	Granwest Ins Co	$16,531,207	0.1%
58	American Natl Prop & Cas Co	$15,413,694	0.1%
59	US Coastal Prop & Cas Ins Co	$15,351,280	0.1%
60	Sentinel Ins Co Ltd	$15,237,528	0.1%
61	American Security Ins Co	$15,098,773	0.1%
62	Mapfre Ins Co	$14,996,464	0.1%
63	Foremost Prop & Cas Ins Co	$13,652,209	0.1%
64	Horace Mann Prop & Cas Ins Co	$11,861,282	0.1%
65	Markel Amer Ins Co	$11,749,323	0.1%
66	Praetorian Ins Co	$10,779,335	0.1%
67	Standard Guar Ins Co	$9,238,127	0.1%
68	Century Natl Ins Co	$7,310,468	0.0%
69	Obsidian Pacific Ins Co	$6,826,593	0.0%
70	Armed Forces Ins Exch	$5,671,329	0.0%
71	Incline Natl Ins Co	$3,808,655	0.0%
72	Eagle W Ins Coagent only	$2,926,227	0.0%
73	Fidelity & Deposit Co Of MD	$2,772,481	0.0%
74	Hyundai Marine & Fire Ins Co Ltd	$1,504,671	0.0%
75	Vigilant Ins Coagent only	$1,415,316	0.0%
76	21st Century Premier Ins Co	$1,356,146	0.0%
77	Crestbrook Ins Coagent only	$1,354,905	0.0%
78	California Mut Ins Co	$1,130,603	0.0%
79	Pacific Ind Coagent only	$1,089,961	0.0%
80	Allstate Ind Co	$1,039,169	0.0%
81	Western Mut Ins Co	$651,310	0.0%
82	Twin City Fire Ins Co Co	$520,309	0.0%
83	Affiliated Fm Ins Co	$241,943	0.0%
84	State Natl Ins Co Inc	$202,820	0.0%
85	Ace Amer Ins Coagent only	$192,137	0.0%
86	Tokio Marine Amer Ins Co	$180,263	0.0%
87	Great Northern Ins Coagent only	$103,693	0.0%
88	Chubb Natl Ins Coagent only	$80,643	0.0%
89	Knightbrook Ins Co	$79,728	0.0%
90	Liberty Mut Fire Ins Co	$46,433	0.0%
91	Executive Risk Ind Incagent only	$38,560	0.0%
92	CSAA Fire & Cas Ins Co	$27,112	0.0%
93	Chubb Ind Ins Coagent only	$20,296	0.0%
94	American Southern Home Ins Co	$4,281	0.0%
95	Civic Prop & Cas Co	$3,145	0.0%
96	Golden Bear Ins Co	$2,983	0.0%
97	Neighborhood Spirit Prop & Cas Co	$1,385	0.0%
98	American Family Home Ins Co	$1,231	0.0%

Source: California insurance regulator, market share report. Companies appear exactly as named in the state file, which lists legal entities rather than brands; several entities can belong to one group you know by a single name.