Company lists · Data refreshed October 2026

Top 25 Insurance defense law firms based in Boston, United States

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

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 133 companies tracked

RevenueBase identified 133 company matches for insurance defense law firms associated with Boston, United States as of October 2026 and tracks 3,208 professional contacts across them, including 2,012 with verified work emails. Across the United States, New York is the largest hub for this category (504 companies); Boston has 133.

This list covers company matches for insurance defense law firms associated with Boston, 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 October 1, 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 Oct 1, 2026 How this list was built

133Companies

3,208Contacts tracked

2,012Verified emails

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The 25 largest insurance defense law firms based in Boston, United States

Ranked by team size

Top 25 of 133 company matches for insurance defense law firms based in Boston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 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	MG M The LAW Firm	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	201-500	514 contacts →
	Exact match “MG+M is a national litigation firm with deep expertise in a wide range of practice areas.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2	Morrison Mahoney LLP	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	201-500	398 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3	Boyle Shaughnessy LAW	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	51-200	137 contacts →
	Exact match “Recognized as one of the region's most experienced, reliable and persistent litigation firms, Boyle \| Shaughnessy Law builds confidence with each client by achieving winning…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4	Todd & Weld LLP	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	51-200	104 contacts →
	Exact match “Todd & Weld LLP is a Boston-based firm of trial lawyers.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5	Cetrulo LLP	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	51-200	100 contacts →
	Exact match “For over 25 years, our dedicated attorneys have been setting the standard for exceptional representation in liability defense litigation.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6	Sherin And Lodgen LLP	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	51-200	93 contacts →
	Exact match “Clients throughout New England and beyond rely on Sherin and Lodgen’s experience and understanding in real estate, litigation, business law, and employment.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7	Peabody & Arnold LLP	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	51-200	90 contacts →
	Exact match “Firm Overview At Peabody & Arnold, our attorneys handle complex and often highly sensitive matters, and have particular expertise in civil litigation and insurance services.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8	Campbell Conroy & O'neil, P.C	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	51-200	83 contacts →
	Exact match “Recognized both nationally and internationally for delivering results on high stakes, complex litigation throughout the United States, Campbell Conroy & O’Neil, P.C.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9	Melick & Porter, LLP	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	51-200	79 contacts →
	Exact match “We know our way around a courtroom.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10	Cmbg3 LAW	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	51-200	75 contacts →
	Exact match “CMBG3 Law is a dynamic law firm that litigates, counsels, and navigates its clients through complex legal matters throughout New England, northern and southern California, and a…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11	Lawson & Weitzen, LLP	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	51-200	73 contacts →
	Exact match “Since 1973, our full-service firm has identified opportunities, surmounted challenges, and optimized results for our clients at reasonable rates.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12	Ruberto, Israel & Weiner, P.C	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	11-50	66 contacts →
	Exact match “Ruberto, Israel & Weiner is a well established business law firm based in Boston, providing legal services to a diverse client base throughout the region, across the U.S.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13	Altman Nussbaum Shunnarah Trial Attorneys	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	51-200	60 contacts →
	Exact match “With over 34 years of combined experience under the law firm's belt, Altman Nussbaum Shunnarah Trial Attorneys, P.C.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14	Smith Duggan Cornell & Gollub LLP	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	11-50	53 contacts →
	Exact match “Smith Duggan Cornell & Gollub LLP provides effective, innovative and timely legal advice to businesses, organizations, individuals and public entities in New England and across…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15	Morgan, Brown & Joy, LLP	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	11-50	52 contacts →
	Exact match “Morgan, Brown & Joy is among New England's oldest and largest management-side employment law firm.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16	Tkck LAW	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	51-200	48 contacts →
	Exact match “Tentindo, Kendall, Canniff & Keefe LLP (TKCK) concentrates in the representation of insurers, businesses, and employers in Massachusetts, New Hampshire, Connecticut, Rhode Island…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17	Pierce Davis & Perritano LLP	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	11-50	47 contacts →
	Exact match “At Pierce Davis & Perritano we embrace a simple philosophy - clients deserve more than just effort, they deserve results.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18	Fitch LAW Partners LLP	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	11-50	46 contacts →
	Exact match “Fitch Law Partners LLP is a litigation law firm distinguished by its preeminent lawyers and the successful results it has achieved for its sophisticated group of clients in…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19	Adler Cohen Harvey Wakeman & Guekguezian, LLP	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	11-50	44 contacts →
	Exact match “For more than twenty-five years, Adler, Cohen, Harvey, Wakeman & Guekguezian has consistently delivered successful results defending our clients in civil litigation and licensing…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20	Michael Kelly Injury Lawyers	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	11-50	39 contacts →
	Exact match “Michael Kelly Injury Lawyers is made up of attorneys that are experienced in personal injury law and are trained to help you through your particular set of difficult circumstances.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21	Donovan Hatem LLP	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	51-200	39 contacts →
	Exact match “Donovan Hatem LLP is a multi-practice law firm comprised of more than 35 litigation and general business attorneys serving a diverse clientele of public and private companies…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22	Murphy & Riley, P.C	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	11-50	38 contacts →
	Exact match “Murphy & Riley is a leading civil litigation firm, concentrating in the defense of personal injury, professional liability, business and insurance litigation matters in all state…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23	Hirsch Roberts Weinstein LLP	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	11-50	36 contacts →
	Exact match “HRW’s team of experienced attorneys helps employers remain in compliance with the law and avoid or resolve every manner of workplace dispute.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24	Martin, Magnuson, Mccarthy & Kenney	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	11-50	36 contacts →
	Exact match “Founded in 1957, Martin, Magnuson, McCarthy & Kenney is a mid-sized law firm with extensive civil litigation and appellate experience.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25	Burns & Farrey	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	11-50	34 contacts →
	Exact match “Burns & Farrey has a 65-year history of providing litigation defense solutions to its national and international client base.” Recorded in the RevenueBase company graph · Oct 1, 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 defense 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 133 insurance defense law firms based in Boston, United States

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Insurance defense law firms based in Boston, United States at a glance

As of Oct 1, 2026

62.7%Verified-email coverage

24.1Average contacts per company

1-10Median size (employees)

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole United States list rather than for Boston, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 133 companies.

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 Boston, United States whose business descriptions match “insurance defense 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 2,012 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 October 1, 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 defense law firms by metro in the United States

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 defense law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many insurance defense law firms are there based in Boston, United States?

RevenueBase identified 133 company matches for insurance defense law firms associated with Boston, United States as of October 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?

MG M The LAW Firm tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most insurance defense law firms?

New York leads the United States with 504 company records, followed by Chicago (376) and Houston (371). Boston has 133.

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 2,012 professional contacts with verified work emails tracked across these 133 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 October 1, 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.