Company lists · Data refreshed September 2026
Top 25 Protection and indemnity law firms based in the United States
RevenueBase identified 680 protection and indemnity law firms headquartered in the United States as of September 2026 and tracks 12,187 professional contacts across them, including 6,518 with verified work emails. New York is the largest hub.
This list covers protection and indemnity law firms 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 29, 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.
The 25 largest protection and indemnity law firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 696 contacts → | ||||
Indirect evidence “Thomas J.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 576 contacts → | ||||
Partial evidence “MGC is a metrics-driven law built specifically to serve the insurance industry, their insureds and self-insureds.#MGCLaw #TeamMGC” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 398 contacts → | ||||
Indirect evidence “For 75 years, Morrison Mahoney LLP has been committed to servicing its clients' needs and working with its clients to achieve desired goals and objectives.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 277 contacts → | ||||
Indirect evidence “Margolis Edelstein was founded in Philadelphia over 65 years ago.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 277 contacts → | ||||
Partial evidence “Conroy Simberg is a result-oriented insurance defense law firm offering a full range of legal services to insurance companies, self-insured organizations, businesses and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 271 contacts → | ||||
Partial evidence “Schouest, Bamdas, Soshea & BenMaier PLLC is a law firm focused on your needs.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 271 contacts → | ||||
Indirect evidence “Founded in 1983, Jones, Skelton & Hochuli's 100 trial and appellate attorneys defend insureds, self-insureds, government entities, corporations, and professional liability…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 237 contacts → | ||||
Partial evidence “Tressler LLP is a national law firm headquartered in Chicago, with ten offices located in six states - California, Illinois, Missouri, New Jersey, New York and Pennsylvania.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 237 contacts → | ||||
Indirect evidence “Kaufman Borgeest & Ryan LLP was founded over twenty years ago, by experienced and nationally recognized defense attorneys dedicated to providing the highest quality legal services…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 232 contacts → | ||||
Indirect evidence “Founded over 80 years ago, Clausen Miller represents businesses, insurers and professionals through strategic, cost-effective litigation and counseling across the nation and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 206 contacts → | ||||
Partial evidence “Founded in 1916, Mendes & Mount LLP is one of the largest firms in the country devoted exclusively to the practice of insurance law.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 192 contacts → | ||||
Partial evidence “Hamilton, Miller & Birthisel, LLP is an AV rated, minority certified law firm based in Florida with offices throughout the state and in Kingston, Jamaica and the U.S.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 192 contacts → | ||||
Indirect evidence “L’Abbate, Balkan, Colavita & Contini, L.L.P.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 182 contacts → | ||||
Strong evidence “A TEAM THAT FIGHTS FOR YOU The Carlson Law Firm has been representing and protecting clients across the nation since 1976.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 169 contacts → | ||||
Partial evidence “Semmes is one of the oldest and largest full-service law firms in the State of Maryland.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 159 contacts → | ||||
Indirect evidence “The American Equity Underwriters, Inc.(AEU) delivers specialized coverage and risk management solutions to waterfront employers across the United States.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 157 contacts → | ||||
Partial evidence “Founded in 1933, Mound Cotton Wollan & Greengrass LLP is among the oldest and most respected law firms in New York City, offering preeminent legal services in a wide array of…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 128 contacts → | ||||
Partial 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 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 118 contacts → | ||||
Indirect evidence “As a corporate policyholder, you expect your insurance provider to cover your claims.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 109 contacts → | ||||
Indirect evidence “Porteous, Hainkel & Johnson, LLP was founded in 1928 and the firm has a long history of success representing and defending local and national businesses, municipalities and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 101 contacts → | ||||
Strong evidence “BatesCarey LLP has dedicated its practice to protecting the interests of insurers and reinsurers while shaping the trends of insurance law throughout the United States and abroad.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 99 contacts → | ||||
Partial evidence “Frenkel Lambert Weiss Weisman & Gordon, LLP (“Frenkel Lambert”) is a law firm steeped in the best traditions of AV rated law firms while at the same time a leader in the legal…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 90 contacts → | ||||
Indirect evidence “Firm Overview At Peabody & Arnold, our attorneys handle complex and often highly sensitive matters, and have particular expertise in civil litigation and insurance services.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 89 contacts → | ||||
Indirect evidence “Thomas Quinn, LLP is founded on the principles of honesty and accountability.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 89 contacts → | ||||
Partial evidence “Rutter Mills has been THE Personal Injury Law Firm in Hampton Roads.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
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: protection and indemnity law firms. 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 protection and indemnity law firms.
- Partial evidence
- Its own public description names part of protection and indemnity law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name protection and indemnity law firms. 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 680 protection and indemnity law firms based in the United States
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Protection and indemnity law firms based in the United States at a glance
As of Sep 29, 2026Companies by employee count
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 680 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 protection and indemnity law firms, 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 “protection and indemnity law firms”. 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 protection and indemnity law firms), 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 protection and indemnity law firms, 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, 6,518 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 29, 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.
Protection and indemnity law firms by metro
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 protection and indemnity law firms, 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 protection and indemnity law firms are there based in the United States?
RevenueBase identified 680 protection and indemnity law firms 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?
Thomas J. Henry LAW, headquartered in Corpus Christi, tops this list with the largest team on record.
Which city has the most protection and indemnity law firms?
New York leads with 45 headquartered companies, followed by New Orleans (44) and Houston (39).
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 6,518 verified decision-maker contacts tracked across these 680 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 29, 2026.
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Protection and indemnity law firms by geography
- Protection and indemnity law firms based in Paris, France
- Protection and indemnity law firms based in Hamburg, Germany
- Protection and indemnity law firms based in Madrid, Spain
- Protection and indemnity law firms based in London, United Kingdom
- Protection and indemnity law firms based in Houston, United States
- Protection and indemnity law firms based in Miami, United States
- Protection and indemnity law firms based in New Orleans, United States
- Protection and indemnity law firms based in New York, United States
- Protection and indemnity law firms based in Australia
- Protection and indemnity law firms based in Belgium
- Protection and indemnity law firms based in Brazil
- Protection and indemnity law firms based in Canada
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.
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