Company lists · Data refreshed September 2026

Top 25 Insurance law firms based in the United States

Name: Insurance law firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 19,968 companies tracked

RevenueBase identified 19,968 company matches for insurance law firms associated with the United States as of September 2026 and tracks 362,791 professional contacts across them, including 194,807 with verified work emails and 186,649 with mobile numbers. New York is the largest hub.

This list covers company matches for insurance law firms associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 3, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 3, 2026 How this list was built

19,968Companies

362,791Contacts tracked

194,807Verified emails

186,649Mobile numbers

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The 25 largest insurance law firms based in the United States

Ranked by team size

Top 25 of 19,968 company matches for insurance law firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 3, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Alliant Insurance Services	Exact match	Irvine, CA, United StatesHQ recorded Sep 3, 2026	10001+	6,035 contacts →
	Exact match “Alliant Insurance Services is among the top 5 largest and fastest-growing insurance brokerage and consulting firms in the United States.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
2	Lewis Brisbois	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 3, 2026	1,001-5,000	3,066 contacts →
	Exact match “Established in 1979, Lewis Brisbois Bisgaard & Smith LLP is a national, full-service law firm with more than 1,600 attorneys and 54 offices in 30 states and the District of…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
3	Gordon Rees Scully Mansukhani, LLP	Exact match	San Francisco, CA, United StatesHQ recorded Sep 3, 2026	1,001-5,000	2,807 contacts →
	Exact match “As the only full-service law firm with offices and attorneys in all 50 states, Gordon Rees Scully Mansukhani delivers maximum value to our clients by combining the resources of a…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
4	Wilson Elser	Exact match	New York, IL, United StatesHQ recorded Sep 3, 2026	1,001-5,000	2,631 contacts →
	Exact match “Wilson Elser is the preeminent defense litigation firm in the United States.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
5	Husch Blackwell	Exact match	20+ U.s. Offices, TX, United StatesHQ recorded Sep 3, 2026	1,001-5,000	2,516 contacts →
	Exact match “Husch Blackwell is a different kind of law firm–structured around our clients’ industries and built on a culture of selfless service.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
6	Arnold & Porter	Exact match	Washington, DC, United StatesHQ recorded Sep 3, 2026	1,001-5,000	2,324 contacts →
	Exact match “Arnold & Porter combines sophisticated regulatory, litigation, and transactional capabilities to resolve clients’ most complex issues.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
7	Jackson Lewis P.C	Exact match	New York, KY, United StatesHQ recorded Sep 3, 2026	1,001-5,000	2,318 contacts →
	Exact match “Focused on employment and labor law since 1958, Jackson Lewis P.C.’s attorneys located in major cities nationwide consistently identify and respond to new ways workplace law…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
8	Seyfarth Shaw LLP	Exact match	Chicago, NC, United StatesHQ recorded Sep 3, 2026	1,001-5,000	2,176 contacts →
	Exact match “High stakes.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
9	FOX Rothschild	Exact match	Philadelphia, FL, United StatesHQ recorded Sep 3, 2026	1,001-5,000	2,161 contacts →
	Exact match “With bold growth, Fox Rothschild brings together attorneys coast to coast.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
10	Dechert LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 3, 2026	1,001-5,000	2,056 contacts →
	Exact match “Dechert is the law firm that helps business leaders lead.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
11	Nelson Mullins Riley & Scarborough	Exact match	Columbia, SC, United StatesHQ recorded Sep 3, 2026	1,001-5,000	2,036 contacts →
	Exact match “Established in 1897, Nelson Mullins is an Am Law 100 firm of more than attorneys, policy advisors and professionals with 33 offices in 17 states and Washington, D.C.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
12	Taft Stettinius & Hollister LLP	Exact match	Cincinnati, IN, United StatesHQ recorded Sep 3, 2026	1,001-5,000	1,963 contacts →
	Exact match “At Taft, we work as one team, driven and committed to helping you succeed.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
13	Debevoise & Plimpton	Exact match	New York, NY, United StatesHQ recorded Sep 3, 2026	1,001-5,000	1,885 contacts →
	Exact match “Debevoise & Plimpton LLP is a premier law firm with market-leading practices, a global perspective and strong New York roots.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
14	Troutman Pepper Locke LLP	Exact match	United StatesHQ recorded Sep 3, 2026	1,001-5,000	1,867 contacts →
	Exact match “Troutman Pepper Locke LLP helps clients solve complex legal challenges and achieve their business goals in an ever-changing global economy.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
15	Venable LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 3, 2026	1,001-5,000	1,791 contacts →
	Exact match “Committed to Your Success – As a law firm of more than 900 professionals, Venable delivers legal services globally in every area of regulatory compliance, government affairs…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
16	Ballard Spahr LLP	Exact match	Philadelphia, DC, United StatesHQ recorded Sep 3, 2026	1,001-5,000	1,720 contacts →
	Exact match “Ballard Spahr LLP, an Am Law 100 law firm with more than 750 lawyers in 19 U.S.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
17	Dinsmore & Shohl LLP	Exact match	Cincinnati, OH, United StatesHQ recorded Sep 3, 2026	1,001-5,000	1,709 contacts →
	Exact match “Dinsmore & Shohl LLP has a nationwide team of more than 750 attorneys who are trusted advisers to Fortune 500 companies, institutions, associations, governments, professional…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
18	Fisher Phillips	Exact match	Atlanta, GA, United StatesHQ recorded Sep 3, 2026	501-1,000	1,457 contacts →
	Exact match “With hundreds of attorneys across the globe, Fisher Phillips advises and advocates for employers internationally on some of the most complex and high-profile workplace matters.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
19	Bradley Arant Boult Cummings LLP	Exact match	Birmingham, AL, United StatesHQ recorded Sep 3, 2026	501-1,000	1,431 contacts →
	Exact match “Ranked in the Am Law 100, Bradley is a national law firm with a reputation for skilled legal work, exceptional client service, and impeccable integrity.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
20	Clark Hill LAW	Exact match	Detroit, MI, United StatesHQ recorded Sep 3, 2026	1,001-5,000	1,355 contacts →
	Exact match “At Clark Hill, our value proposition is simple.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
21	Quarles & Brady LLP	Exact match	Milwaukee, WI, United StatesHQ recorded Sep 3, 2026	1,001-5,000	1,333 contacts →
	Exact match “For over 125 years, Quarles & Brady LLP has provided quality legal services to a wide range of industries on a national stage.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
22	Snell & Wilmer	Exact match	Phoenix, CA, United StatesHQ recorded Sep 3, 2026	501-1,000	1,233 contacts →
	Exact match “Founded in 1938, Snell & Wilmer is a full-service business law firm with more than 500 lawyers practicing in 17 locations throughout the United States and in Mexico.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
23	Steptoe LLP	Exact match	Washington, TX, United StatesHQ recorded Sep 3, 2026	1,001-5,000	1,215 contacts →
	Exact match “In more than 100 years of practice, Steptoe* has earned an international reputation for vigorous representation of clients before governmental agencies, successful advocacy in…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
24	Buchanan Ingersoll & Rooney PC	Exact match	Pittsburgh, PA, United StatesHQ recorded Sep 3, 2026	501-1,000	1,204 contacts →
	Exact match “Buchanan Ingersoll & Rooney is a national law firm with a proven reputation for providing progressive, industry-leading legal, business, regulatory and government relations advice…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
25	Hinshaw & Culbertson LLP	Exact match	Chicago, CA, United StatesHQ recorded Sep 3, 2026	501-1,000	1,193 contacts →
	Exact match “Hinshaw & Culbertson LLP is a U.S-based law firm with offices nationwide.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “insurance law firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 19,968 insurance law firms based in the United States

See the full list, filter by size, metro and specialty, and access 194,807 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Insurance law firms based in the United States at a glance

As of Sep 3, 2026

53.7%Verified-email coverage

51.4%Mobile-number coverage

18.2Average contacts per company

1-10Median size (employees)

3.9%Largest-city concentration · New York

Sep 3, 2026Page data refreshed

Companies by employee count

1-10

11,599

11-50

6,360

51-200

1,522

201-500

222

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

17,55631–60

111,45361–90

64,97590–180

823180+

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United States whose business descriptions match “insurance law firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 194,807 professional contacts with verified work emails across the full matched dataset. 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 3, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Insurance law firms by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “insurance law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many insurance law firms are there based in the United States?

RevenueBase identified 19,968 company matches for insurance law firms associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Alliant Insurance Services tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most insurance law firms?

New York leads with 783 company records, followed by Houston (524) and Chicago (492).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 194,807 professional contacts with verified work emails tracked across these 19,968 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 3, 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 SmartSearch, 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.