Company lists · Data refreshed September 2026

Top 25 Mutual insurance companies based in the United States

Name: Mutual insurance companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 154 companies tracked

RevenueBase identified 154 mutual insurance companies headquartered in the United States as of September 2026 and tracks 29,613 professional contacts across them, including 12,103 with verified work emails. Indianapolis is the largest hub.

This list covers mutual insurance companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

154Companies

29,613Contacts tracked

12,103Verified emails

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The 25 largest mutual insurance companies based in the United States

Ranked by team size

Top 25 of 154 mutual insurance companies based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to mutual insurance companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Mutual Of Omaha	Strong evidence	Omaha, NE, United StatesHQ checked Sep 17, 2026	1,001-5,000	8,621 contacts →
	Strong evidence “Founded in 1909, Mutual of Omaha is a highly-rated, Fortune 300 organization offering a variety of insurance and financial products for individuals, businesses and groups…” Source: RevenueBase Database · checked Sep 17, 2026
2	Shelter Insurance Companies	Partial evidence	Columbia, MO, United StatesHQ checked Sep 17, 2026	1,001-5,000	3,912 contacts →
	Partial evidence “Shelter Insurance® is a property casualty insurance company offering auto and home insurance in addition to several other insurance products, including: Life Insurance Renters…” Source: RevenueBase Database · checked Sep 17, 2026
3	Amica Insurance	Indirect evidence	Lincoln, RI, United StatesHQ checked Sep 17, 2026	1,001-5,000	3,040 contacts →
	Indirect evidence “When you look at Amica, you’ll see we’re different.” Source: RevenueBase Database · checked Sep 17, 2026
4	Fcci Insurance Group	Partial evidence	Sarasota, FL, United StatesHQ checked Sep 17, 2026	501-1,000	1,036 contacts →
	Partial evidence “FCCI Insurance Group provides commercial property and casualty insurance.” Source: RevenueBase Database · checked Sep 17, 2026
5	Encova Insurance	Partial evidence	Columbus, OH, United StatesHQ checked Sep 17, 2026	1,001-5,000	824 contacts →
	Partial evidence “Encova Insurance provides commercial, auto and home insurance.” Source: RevenueBase Database · checked Sep 17, 2026
6	Grinnell Mutual	Indirect evidence	Grinnell, IA, United StatesHQ checked Sep 17, 2026	501-1,000	684 contacts →
	Indirect evidence “Now in our second century of service, still committed to our trusted relationships with you.” Source: RevenueBase Database · checked Sep 17, 2026
7	Greater NEW York Insurance Companies	Partial evidence	New York, NY, United StatesHQ checked Sep 17, 2026	201-500	351 contacts →
	Partial evidence “Greater New York Insurance Companies are leading providers of middle market property and casualty insurance focusing on commercial real estate, including condominiums, co-op…” Source: RevenueBase Database · checked Sep 17, 2026
8	Security Mutual Life Insurance Company Of NEW York	Strong evidence	Binghamton, NY, United StatesHQ checked Sep 17, 2026	201-500	324 contacts →
	Strong evidence “Since 1886, Security Mutual Life Insurance Company of New York has been helping protect families and businesses during periods of prosperity, as well as during wars and times of…” Source: RevenueBase Database · checked Sep 17, 2026
9	SBLI	Partial evidence	Woburn, MA, United StatesHQ checked Sep 17, 2026	201-500	267 contacts →
	Partial evidence “Since 1907, SBLI has helped millions of people protect what matters most with simple, dependable life insurance.” Source: RevenueBase Database · checked Sep 17, 2026
10	Norfolk & Dedham Insurance	Partial evidence	Dedham, MA, United StatesHQ checked Sep 17, 2026	51-200	267 contacts →
	Partial evidence “Norfolk & Dedham Insurance has been protecting homes, autos, and businesses since 1825.” Source: RevenueBase Database · checked Sep 17, 2026
11	Guarantee Trust Life Insurance Company	Partial evidence	Glenview, IL, United StatesHQ checked Sep 17, 2026	201-500	265 contacts →
	Partial evidence “Guarantee Trust Life Insurance Company has a long history of operating on the values of integrity, quality products and personal customer service.” Source: RevenueBase Database · checked Sep 17, 2026
12	Vermont Mutual Insurance Group	Strong evidence	Montpelier, VT, United StatesHQ checked Sep 17, 2026	201-500	251 contacts →
	Strong evidence “Chartered in 1828, the Vermont Mutual Insurance Company is one of the 10 oldest mutual property/casualty insurers in the United States.” Source: RevenueBase Database · checked Sep 17, 2026
13	Indiana Farmers Insurance	Strong evidence	Indianapolis, IN, United StatesHQ checked Sep 17, 2026	201-500	221 contacts →
	Strong evidence “A mutual company founded in 1877, Indiana Farmers Insurance knows insurance, but just as important we know the Midwest.” Source: RevenueBase Database · checked Sep 17, 2026
14	Goodville Mutual Casualty Company	Strong evidence	New Holland, PA, United StatesHQ checked Sep 17, 2026	51-200	150 contacts →
	Strong evidence “Goodville Mutual was founded in 1926 by a small group of Mennonite aware of the growing need for automobile insurance in Lancaster County, Pennsylvania.” Source: RevenueBase Database · checked Sep 17, 2026
15	National Association Of Mutual Insurance Companies Namic	Strong evidence	Indianapolis, IN, United StatesHQ checked Sep 17, 2026	51-200	122 contacts →
	Strong evidence “The National Association of Mutual Insurance Companies consists of more than 1,300 member companies, including six of the top 10 property/casualty insurers in the United States.” Source: RevenueBase Database · checked Sep 17, 2026
16	Bear River Mutual	Partial evidence	Murray, UT, United StatesHQ checked Sep 17, 2026	51-200	118 contacts →
	Partial evidence “Since 1909, Bear River Mutual has been committed to serving the people of Utah.” Source: RevenueBase Database · checked Sep 17, 2026
17	Betterlife Insurance	Partial evidence	Madison, WI, United StatesHQ checked Sep 17, 2026	51-200	110 contacts →
	Partial evidence “BetterLife is a member-owned life insurance company that offers reliable protection, friendly service, & financial guidance, all with you and your loved ones in mind.” Source: RevenueBase Database · checked Sep 17, 2026
18	Badger Mutual Insurance Company	Indirect evidence	Milwaukee, WI, United StatesHQ checked Sep 17, 2026	51-200	108 contacts →
	Indirect evidence “Named a Top Workplace by the Milwaukee Journal Sentinel in 2019, 2020, 2021, 2022, & 2023.” Source: RevenueBase Database · checked Sep 17, 2026
19	Fremont Insurance Company	Partial evidence	Fremont, MI, United StatesHQ checked Sep 17, 2026	51-200	105 contacts →
	Partial evidence “Fremont Insurance has been insuring and investing in Michigan exclusively since 1876.” Source: RevenueBase Database · checked Sep 17, 2026
20	Union Mutual	Strong evidence	Montpelier, VT, United StatesHQ checked Sep 17, 2026	51-200	83 contacts →
	Strong evidence “Located in the Green Mountains of central Vermont and first established in 1874, Union Mutual has been providing quality insurance products for over 140 years.” Source: RevenueBase Database · checked Sep 17, 2026
21	Cumberland Mutual	Partial evidence	Bridgeton, NJ, United StatesHQ checked Sep 17, 2026	51-200	73 contacts →
	Partial evidence “Since 1844, the Board, management, and staff of Cumberland Mutual have dedicated themselves to building a company whose integrity and vision would provide individuals, families…” Source: RevenueBase Database · checked Sep 17, 2026
22	Hochheim Prairie Farm Mutual Insurance Association	Indirect evidence	Yoakum, TX, United StatesHQ checked Sep 17, 2026	51-200	71 contacts →
	Indirect evidence “We’re Texans Insuring Texans.” Source: RevenueBase Database · checked Sep 17, 2026
23	Northern Neck Insurance Company	Indirect evidence	Irvington, VA, United StatesHQ checked Sep 17, 2026	51-200	68 contacts →
	Indirect evidence “VIRGINIANS PROTECTING VIRGINIANS If you owned a home in the late 1800s, you lived in mortal fear of fire.” Source: RevenueBase Database · checked Sep 17, 2026
24	Triangle Insurance Company	Partial evidence	Enid, OK, United StatesHQ checked Sep 17, 2026	51-200	65 contacts →
	Partial evidence “Triangle Insurance Company, is cooperatively owned agribusiness insurance company based out of Enid, Oklahoma, United States.” Source: RevenueBase Database · checked Sep 17, 2026
25	Rockford Mutual Insurance Company	Strong evidence	Rockford, IL, United StatesHQ checked Sep 17, 2026	51-200	63 contacts →
	Strong evidence “Rockford Mutual Insurance has helped families, individuals and businesses today and during time of need for 125 years and counting.” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: mutual insurance companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names mutual insurance companies.
Partial evidence: Its own public description names part of mutual insurance companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name mutual insurance companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 154 mutual insurance companies based in the United States

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Mutual insurance companies based in the United States at a glance

As of Sep 17, 2026

40.9%Verified-email coverage

192.3Average contacts per company

11-50Median size (employees)

2.6%Largest-city concentration · Indianapolis

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 154 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among mutual insurance companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “mutual insurance companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names mutual insurance companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among mutual insurance companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 12,103 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 17, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names mutual insurance companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many mutual insurance companies are there based in the United States?

RevenueBase identified 154 mutual insurance companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Mutual Of Omaha, headquartered in Omaha, tops this list with the largest team on record.

Which city has the most mutual insurance companies?

Indianapolis leads with 4 headquartered companies, followed by Madison (3) and Bedford (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 12,103 verified decision-maker contacts tracked across these 154 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.