Company lists · Data refreshed September 2026

Top 25 Securities law firms based in Boston, United States

Name: Securities 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 Sep 6, 2026 93 companies tracked

RevenueBase identified 93 securities law firms headquartered in Boston, United States as of September 2026 and tracks 3,951 professional contacts across them, including 1,973 with verified work emails. New York is the largest hub.

This list covers securities law firms headquartered in Boston, 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, how directly it supports the match, and when it was last checked. Data refreshed September 6, 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 HQ checked on every row Match evidence on every row Refreshed Sep 6, 2026 86% judged on-target in blind review

93Companies

3,951Contacts tracked

1,973Verified emails

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The 25 largest securities law firms based in Boston, United States

Ranked by team size

Top 25 of 93 securities law firms based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. Evidence rates how directly each company's own description names securities law firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	MINTZPartial evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	1,001-5,000	1,326
	“Mintz is a full-service law firm serving clients in the life sciences, energy, private equity, and technology industries.” Source: company website · checked Sep 6, 2026
2	Bingham Mccutchen LLPIndirect evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	1,001-5,000	575
	“Paul, Weiss, Rifkind, Wharton & Garrison LLP is a firm of about lawyers with diverse backgrounds, personalities, ideas and interests who provide innovative and effective solutions…” Source: company website · checked Sep 6, 2026
3	NutterIndirect evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	201-500	364
	“Welcome to Nutter, where legal expertise meets unparalleled dedication.” Source: company website · checked Sep 6, 2026
4	Sullivan & Worcester LLPPartial evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	201-500	359
	“As an international law firm with innovation in our DNA, we attract clients that are visionaries, trailblazers and game changers.” Source: company website · checked Sep 6, 2026
5	VerrillIndirect evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	201-500	286
	“Decency, honesty, and judgment.” Source: company website · checked Sep 6, 2026
6	Campbell Conroy & O'neil, P.CIndirect evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	51-200	83
	“Recognized both nationally and internationally for delivering results on high stakes, complex litigation throughout the United States, Campbell Conroy & O’Neil, P.C.” Source: company website · checked Sep 6, 2026
7	Conn KavanaughPartial evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	51-200	82
	“Conn Kavanaugh is a Boston-based law firm representing individuals, families, and organizations, from Fortune 100 companies to closely held, family businesses and everything in…” Source: company website · checked Sep 6, 2026
8	Ruberto, Israel & Weiner, P.CPartial evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	11-50	66
	“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.” Source: company website · checked Sep 6, 2026
9	Davis MalmIndirect evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	51-200	63
	“We want to get to know you.” Source: company website · checked Sep 6, 2026
10	Rich May, P.CIndirect evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	11-50	53
	Source: company website · checked Sep 6, 2026
11	Smith Duggan Cornell & Gollub LLPIndirect evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	11-50	53
	“Smith Duggan Cornell & Gollub LLP provides effective, innovative and timely legal advice to businesses, organizations, individuals and public entities in New England and across…” Source: company website · checked Sep 6, 2026
12	Berman TabaccoPartial evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	51-200	45
	“Berman Tabacco prosecutes class actions nationwide on behalf of institutions and individuals, helping them recoup losses caused by violations of securities, antitrust and consumer…” Source: company website · checked Sep 6, 2026
13	Adler Cohen Harvey Wakeman & Guekguezian, LLPIndirect evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	11-50	44
	“For more than twenty-five years, Adler, Cohen, Harvey, Wakeman & Guekguezian has consistently delivered successful results defending our clients in civil litigation and licensing…” Source: company website · checked Sep 6, 2026
14	Rudolph Friedmann LLPPartial evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	11-50	35
	“We are a full-service law firm, ready to assist businesses, organizations, individuals and families with any legal matter.” Source: company website · checked Sep 6, 2026
15	D'ambrosio LLPPartial evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	11-50	30
	“DLLP is a full-service law firm dedicated to offering the highest level of strategic counsel.” Source: company website · checked Sep 6, 2026
16	Mckenzie & Associates, P.CIndirect evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	1-10	30
	“Since 1984, McKenzie & Associates, P.C.” Source: company website · checked Sep 6, 2026
17	Murphy & King, Professional CorporationIndirect evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	51-200	29
	“Unraveling Complexity A business is a complex entity.” Source: company website · checked Sep 6, 2026
18	Block & Leviton LLPPartial evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	11-50	25
	“Block & Leviton LLP is a boutique law firm focused on complex litigation nationwide.” Source: company website · checked Sep 6, 2026
19	Pierce & Mandell, P.CIndirect evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	11-50	25
	Source: company website · checked Sep 6, 2026
20	Tarlow Breed Hart & Rodgers, P.CIndirect evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	11-50	25
	“Formed in 1991, Tarlow, Breed, Hart & Rodgers, P.C.” Source: company website · checked Sep 6, 2026
21	Dynamis LLPIndirect evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	11-50	18
	“Elite litigation boutique focusing on complex civil litigation and white-collar defense.” Source: company website · checked Sep 6, 2026
22	Lynch Fink Harrington & Gray LLPStrong evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	11-50	18
	“Full service Boston-based law firm specializing in Tax, Estate Planning, Trust, Corporate, and Securities” Source: company website · checked Sep 6, 2026
23	Gilman, Mclaughlin & Hanrahan, LLPPartial evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	11-50	11
	“At the law firm of Gilman, McLaughlin & Hanrahan, LLP, we have been serving individuals and businesses in and around Boston, eastern Massachusetts and Cape Cod since 1975.” Source: company website · checked Sep 6, 2026
24	Donnelly, Conroy & Gelhaar, LLPPartial evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	11-50	11
	“We are a Boston-based law firm known for excellence in white collar criminal and government investigation defense, SEC enforcement defense, and complex business litigation.” Source: company website · checked Sep 6, 2026
25	Mcgrath & Kane Attorneys At Law, INCIndirect evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	11-50	10
	Source: company website · checked Sep 6, 2026

Showing 25 of 93 securities law firms based in Boston, United States

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Securities law firms based in Boston, United States at a glance

As of Sep 6, 2026

1-10Median size (employees)

New YorkLargest hub · 461 HQs

Contacts with mobile numbers

Sep 6, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 93 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 securities law firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Boston, United States whose own description of what they do matches “securities law firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among securities law firms, and records with no verified work email. Companies headquartered outside Boston 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 an evidence 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, 1,973 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 6, 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.

Securities law firms by metro in the United States

Frequently asked

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

RevenueBase identified 93 securities law firms headquartered in Boston, 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?

MINTZ, headquartered in Boston, tops this list with the largest team on record.

Which city has the most securities law firms?

New York leads with 461 headquartered companies, followed by Chicago (186) and Los Angeles (152).

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 1,973 verified decision-maker contacts tracked across these 93 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 6, 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.