Company lists · Data refreshed September 2026

Top 25 Professional liability insurance providers based in the United States

Name: Professional liability insurance providers 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 297 companies tracked

RevenueBase identified 297 professional liability insurance providers headquartered in the United States as of September 2026 and tracks 7,621 professional contacts across them, including 3,748 with verified work emails. Tampa is the largest hub.

This list covers professional liability insurance providers 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

297Companies

7,621Contacts tracked

3,748Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest professional liability insurance providers based in the United States

Ranked by team size

Top 25 of 297 professional liability insurance providers 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 professional liability insurance providers: 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	Medpro Group	Partial evidence	Fort Wayne, IN, United StatesHQ checked Sep 17, 2026	501-1,000	980 contacts →
	Partial evidence “As the nation’s first provider of malpractice insurance, MedPro Group has served the healthcare community since 1899 – providing customized insurance and risk solutions across the…” Source: RevenueBase Database · checked Sep 17, 2026
2	Proassurance	Strong evidence	Birmingham, AL, United StatesHQ checked Sep 17, 2026	501-1,000	738 contacts →
	Strong evidence “Providing a Spectrum of Healthcare Liability and Other Insurance Solutions … and More ProAssurance’s group of insurance companies specializes in providing the full spectrum of…” Source: RevenueBase Database · checked Sep 17, 2026
3	Magmutual	Strong evidence	Atlanta, GA, United StatesHQ checked Sep 17, 2026	201-500	524 contacts →
	Strong evidence “MagMutual is a liability insurance provider and healthcare consultancy working to protect and support physicians and healthcare organizations.” Source: RevenueBase Database · checked Sep 17, 2026
4	Coverys	Indirect evidence	Boston, MA, United StatesHQ checked Sep 17, 2026	501-1,000	516 contacts →
	Indirect evidence “With healthcare’s constant complexities and distractions, it can be difficult to focus on patients.” Source: RevenueBase Database · checked Sep 17, 2026
5	Mlmic Insurance Company	Indirect evidence	Albany, NY, United StatesHQ checked Sep 17, 2026	201-500	250 contacts →
	Indirect evidence “No one knows NY better than MLMIC!” Source: RevenueBase Database · checked Sep 17, 2026
6	Beta Healthcare Group	Strong evidence	Alamo, CA, United StatesHQ checked Sep 17, 2026	51-200	197 contacts →
	Strong evidence “BETA Healthcare Group (BETA) is the largest professional liability insurer of hospitals on the West Coast, providing coverage to more than 650 hospital and healthcare facility…” Source: RevenueBase Database · checked Sep 17, 2026
7	Cooperative Of American Physicians, INC	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 17, 2026	51-200	157 contacts →
	Strong evidence “The Cooperative of American Physicians, Inc.(CAP), established in 1975, offers superior medical professional liability coverage through the Mutual Protection Trust (MPT).” Source: RevenueBase Database · checked Sep 17, 2026
8	Norcal Group	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 17, 2026	201-500	148 contacts →
	Strong evidence “NORCAL Group, part of ProAssurance, offers a full spectrum of medical professional liability insurance solutions to physicians and other healthcare providers.” Source: RevenueBase Database · checked Sep 17, 2026
9	Berkley Select A Berkley Company	Strong evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	51-200	130 contacts →
	Strong evidence “Berkley Select is a leading provider of professional liability insurance products across a full spectrum of disciplines and industries, for clients of virtually every size and…” Source: RevenueBase Database · checked Sep 17, 2026
10	ALAS	Strong evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	51-200	128 contacts →
	Strong evidence “Attorneys' Liability Assurance Society (ALAS) was founded by its owner-insured law firms to provide a superior source of insurance coverage along with a level of service that…” Source: RevenueBase Database · checked Sep 17, 2026
11	Physicians Insurance A Mutual Company	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	51-200	117 contacts →
	Indirect evidence “We stake our reputation on protecting yours.” Source: RevenueBase Database · checked Sep 17, 2026
12	Camico	Strong evidence	San Mateo, CA, United StatesHQ checked Sep 17, 2026	51-200	115 contacts →
	Strong evidence “CAMICO was founded by CPAs in the 1980s, introducing a new way of approaching Accountants’ Professional Liability Insurance that focuses on helping firms reduce their malpractice…” Source: RevenueBase Database · checked Sep 17, 2026
13	Ismie Mutual Insurance Company	Strong evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	201-500	101 contacts →
	Strong evidence “ISMIE Mutual is the leading medical liability insurance company in Illinois, offering coverage to health care professionals nationwide.” Source: RevenueBase Database · checked Sep 17, 2026
14	Alps Lawyers Malpractice Insurance & LAW Firm Insurance	Partial evidence	Missoula, MT, United StatesHQ checked Sep 17, 2026	51-200	89 contacts →
	Partial evidence “ALPS is law firm insurance made easy.” Source: RevenueBase Database · checked Sep 17, 2026
15	PICA	Strong evidence	Birmingham, AL, United StatesHQ checked Sep 17, 2026	51-200	88 contacts →
	Strong evidence “Podiatry Insurance Company of America (PICA), a ProAssurance company is the nation's leading provider of professional liability insurance for podiatric physicians in the U.S.” Source: RevenueBase Database · checked Sep 17, 2026
16	Medical Mutual Liability Insurance Society Of Maryland	Indirect evidence	Hunt Valley, MD, United StatesHQ checked Sep 17, 2026	51-200	78 contacts →
	Indirect evidence “MEDICAL MUTUAL was created for Maryland Physicians and is owned and directed by Maryland Physicians.” Source: RevenueBase Database · checked Sep 17, 2026
17	Princeton Insurance Company	Strong evidence	Princeton, NJ, United StatesHQ checked Sep 17, 2026	51-200	77 contacts →
	Strong evidence “Princeton Insurance is New Jersey's leading medical professional liability insurance provider.” Source: RevenueBase Database · checked Sep 17, 2026
18	Kelly, Trotter & Franzen	Strong evidence	Long Beach, CA, United StatesHQ checked Sep 17, 2026	51-200	77 contacts →
	Strong evidence “CKT & F was established in 1994 in Long Beach, California and specializes in professional liability defense.” Source: RevenueBase Database · checked Sep 17, 2026
19	MICA	Strong evidence	Phoenix, AZ, United StatesHQ checked Sep 17, 2026	51-200	73 contacts →
	Strong evidence “Mutual Insurance Company of Arizona® (MICA) is a member-owned and physician-directed mutual insurance company focused on providing medical professional liability insurance.” Source: RevenueBase Database · checked Sep 17, 2026
20	MIEC	Partial evidence	Oakland, CA, United StatesHQ checked Sep 17, 2026	51-200	71 contacts →
	Partial evidence “MIEC was founded in 1975 in the depths of the malpractice crisis by physicians and their medical societies when insurance was largely unavailable to the healthcare community.” Source: RevenueBase Database · checked Sep 17, 2026
21	Apogee Insurance Group, A Berkshire Hathaway Company	Strong evidence	Wayne, PA, United StatesHQ checked Sep 17, 2026	51-200	66 contacts →
	Strong evidence “Apogee Insurance Group is a Berkshire Hathaway specialty broker focused on Professional (E&O), Management (D&O, EPL, Crime, and Fiduciary), Cyber, and Pollution Liability risks.” Source: RevenueBase Database · checked Sep 17, 2026
22	Berkley Healthcare A Berkley Company	Partial evidence	Chesterfield, MO, United StatesHQ checked Sep 17, 2026	51-200	65 contacts →
	Partial evidence “Berkley Healthcare helps protect healthcare organizations and their executives against the professional, financial and reputational risks they face in today’s complex and changing…” Source: RevenueBase Database · checked Sep 17, 2026
23	Berkley Management Protection A Berkley Company	Strong evidence	West Hartford, CT, United StatesHQ checked Sep 17, 2026	11-50	63 contacts →
	Strong evidence “Founded in 2020, Berkley Management Protection aims to disrupt the Management and Professional Liability marketplace by providing a new way to engage the market with talent, data…” Source: RevenueBase Database · checked Sep 17, 2026
24	Minnesota Lawyers Mutual Insurance Company	Strong evidence	Minneapolis, MN, United StatesHQ checked Sep 17, 2026	51-200	61 contacts →
	Strong evidence “Founded in 1982 by members of the Minnesota State Bar Association, Minnesota Lawyers Mutual Insurance Company (MLM) provides lawyers professional liability insurance and risk…” Source: RevenueBase Database · checked Sep 17, 2026
25	Berkley Alliance Managers A Berkley Company	Strong evidence	Albany, NY, United StatesHQ checked Sep 17, 2026	51-200	45 contacts →
	Strong evidence “Berkley Alliance Managers offers innovative Professional Liability insurance coverage and risk management solutions.” 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: professional liability insurance providers. 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 professional liability insurance providers.
Partial evidence: Its own public description names part of professional liability insurance providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name professional liability insurance providers. 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 297 professional liability insurance providers based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 3,748 reachable decision-makers.

Free signup · no credit card

View the full list →

Professional liability insurance providers based in the United States at a glance

As of Sep 17, 2026

49.2%Verified-email coverage

25.7Average contacts per company

11-50Median size (employees)

2.7%Largest-city concentration · Tampa

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

128

11-50

111

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 297 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 professional liability insurance providers, 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 “professional liability insurance providers”. 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 professional liability insurance providers), 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 professional liability insurance providers, 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, 3,748 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 professional liability insurance providers, 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 professional liability insurance providers are there based in the United States?

RevenueBase identified 297 professional liability insurance providers 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?

Medpro Group, headquartered in Fort Wayne, tops this list with the largest team on record.

Which city has the most professional liability insurance providers?

Tampa leads with 8 headquartered companies, followed by Austin (7) and Chicago (7).

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 3,748 verified decision-maker contacts tracked across these 297 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.

Ready to reach these companies? Verified emails and direct dials for all 297 professional liability insurance providers based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Professional liability insurance providers by geography

Professional liability insurance providers based in the United Kingdom

Browse the directory

Browse: Companies home · All United States lists · All Professional liability insurance providers lists · New lists

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.