Company lists · Data refreshed September 2026

Top 25 Class action law firms based in New York, United States

Name: Class action law firms based in New York, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 8, 2026 251 companies tracked

RevenueBase identified 251 class action law firms headquartered in New York, United States as of September 2026 and tracks 5,670 professional contacts across them, including 3,456 with verified work emails and 2,628 with mobile numbers. New York is the largest hub.

This list covers class action law firms headquartered in New York, 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 8, 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 8, 2026 86% judged on-target in blind review

251Companies

5,670Contacts tracked

3,456Verified emails

2,628Mobile numbers

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The 25 largest class action law firms based in New York, United States

Ranked by team size

Top 25 of 251 class action law firms based in New York, United States, ranked by team size, largest first. Data refreshed Sep 8, 2026. RevenueBase Smart Search rates how each company's information relates to class action law firms: 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	Boies Schiller Flexner LLP	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	501-1,000	537 contacts →
	Indirect evidence “A firm of internationally recognized trial lawyers, crisis managers, and strategic advisors known for our creative, aggressive, and efficient pursuit of success for our clients.” Source: RevenueBase Database · checked Sep 8, 2026
2	Weitz & Luxenberg PC	Partial evidence	New York, NY, United StatesHQ checked Sep 8, 2026	201-500	530 contacts →
	Partial evidence “Weitz & Luxenberg is New York City’s largest personal injury and mass-tort plaintiffs’ law firm.” Source: RevenueBase Database · checked Sep 8, 2026
3	Slater Slater Schulman LLP	Partial evidence	New York, NY, United StatesHQ checked Sep 8, 2026	51-200	209 contacts →
	Partial evidence “Slater Slater Schulman LLP is a leading, full-service law firm with decades of experience representing survivors of traumatic and catastrophic events.” Source: RevenueBase Database · checked Sep 8, 2026
4	Labaton Keller Sucharow LLP	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	51-200	207 contacts →
	Indirect evidence “With more than 60 years of experience, Labaton Keller Sucharow stands as a tenacious advocate for investors and consumers, having secured billions of dollars in landmark…” Source: RevenueBase Database · checked Sep 8, 2026
5	Bernstein Litowitz Berger & Grossmann LLP	Partial evidence	New York, NY, United StatesHQ checked Sep 8, 2026	51-200	190 contacts →
	Partial evidence “Bernstein Litowitz Berger & Grossmann LLP ("BLB & G") is a leading law firm advising institutional investors on issues related to corporate governance, shareholder rights, and…” Source: RevenueBase Database · checked Sep 8, 2026
6	Selendy GAY Pllc	Indirect evidence	New York, United StatesHQ checked Sep 8, 2026	51-200	181 contacts →
	Indirect evidence “Selendy Gay's practice is dedicated to excellence in commercial litigation, investigations, appellate advocacy, and arbitration.” Source: RevenueBase Database · checked Sep 8, 2026
7	Gallo Vitucci Klar LLP	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	51-200	159 contacts →
	Indirect evidence “Gallo Vitucci Klar LLP is a full service litigation firm consisting of more than 130 attorneys and having an extensive practice dedicated to providing experienced and innovative…” Source: RevenueBase Database · checked Sep 8, 2026
8	Outten & Golden LLP	Partial evidence	New York, NY, United StatesHQ checked Sep 8, 2026	51-200	150 contacts →
	Partial evidence “Outten & Golden is a nationally recognized law firm for employees.” Source: RevenueBase Database · checked Sep 8, 2026
9	Sanford Heisler Sharp Mcknight, LLP	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	51-200	145 contacts →
	Indirect evidence “At Sanford Heisler Sharp McKnight, our team of knowledgeable attorneys is committed to representing clients in their claims against powerful entities.” Source: RevenueBase Database · checked Sep 8, 2026
10	Scott Scott	Partial evidence	New York, NY, United StatesHQ checked Sep 8, 2026	51-200	135 contacts →
	Partial evidence “Scott+Scott is an international law firm known for its expertise in representing corporate clients, institutional investors, businesses, and individuals harmed by anticompetitive…” Source: RevenueBase Database · checked Sep 8, 2026
11	Napoli Shkolnik	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	201-500	134 contacts →
	Indirect evidence “Napoli Shkolnik is a national litigation firm providing representation to victims of defective prescriptions drugs and medical devices, asbestos-related illnesses, aviation…” Source: RevenueBase Database · checked Sep 8, 2026
12	Landman Corsi Ballaine & Ford P.C	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	51-200	98 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 8, 2026
13	Pomerantz LLP	Strong evidence	New York, NY, United StatesHQ checked Sep 8, 2026	51-200	87 contacts →
	Strong evidence “Pomerantz LLP is one of the nation’s foremost specialists in corporate, securities, antitrust, and ERISA class action litigation.” Source: RevenueBase Database · checked Sep 8, 2026
14	Parker Waichman LLP	Partial evidence	New York, NY, United StatesHQ checked Sep 8, 2026	51-200	87 contacts →
	Partial evidence “Parker Waichman LLP is a leading personal injury, mass tort and environmental law firm that represents plaintiffs nationwide.” Source: RevenueBase Database · checked Sep 8, 2026
15	Levy Konigsberg	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	51-200	82 contacts →
	Indirect evidence “Based in New York and New Jersey, Levy Konigsberg represents clients nationwide in complex civil litigation.” Source: RevenueBase Database · checked Sep 8, 2026
16	Chaffin Luhana LLP	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	51-200	81 contacts →
	Indirect evidence “Chaffin Luhana LLP is a plaintiffs-only national trial firm dedicated to representing individuals and families in serious personal injury and mass tort cases.” Source: RevenueBase Database · checked Sep 8, 2026
17	Siri & Glimstad LLP	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	51-200	79 contacts →
	Indirect evidence “Siri & Glimstad LLP has offices across the country and represents individuals and corporations in federal and state courts nationwide.” Source: RevenueBase Database · checked Sep 8, 2026
18	Mololamken LLP	Partial evidence	New York, NY, United StatesHQ checked Sep 8, 2026	51-200	78 contacts →
	Partial evidence “MoloLamken is a law firm focused exclusively on representing clients in complex disputes.” Source: RevenueBase Database · checked Sep 8, 2026
19	Skarzynski Marick & Black LLP	Partial evidence	New York, NY, United StatesHQ checked Sep 8, 2026	51-200	78 contacts →
	Partial evidence “Skarzynski Marick is a business law firm with extensive experience in insurance.” Source: RevenueBase Database · checked Sep 8, 2026
20	Constantine Cannon LLP	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	51-200	74 contacts →
	Indirect evidence “No other.” Source: RevenueBase Database · checked Sep 8, 2026
21	Levi & Korsinsky, LLP	Partial evidence	New York, NY, United StatesHQ checked Sep 8, 2026	201-500	71 contacts →
	Partial evidence “Levi & Korsinsky, LLP is a leading plaintiffs’ law firm that has recovered billions of dollars for defrauded investors in global securities litigation and has been at the…” Source: RevenueBase Database · checked Sep 8, 2026
22	Sullivan Papain Block Mcmanus Coffinas & Cannavo P.C	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	51-200	69 contacts →
	Indirect evidence “ATTORNEY ADVERTISING DISCLAIMER All content on this page may be deemed or considered attorney advertising.” Source: RevenueBase Database · checked Sep 8, 2026
23	Bursor & Fisher, P.A	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	11-50	69 contacts →
	Indirect evidence “BURSOR & FISHER lawyers have represented both plaintiffs and defendants in state and federal courts throughout the country, primarily in the fields of telecommunications…” Source: RevenueBase Database · checked Sep 8, 2026
24	Subin Associates	Indirect evidence	New York, NY, United StatesHQ checked Sep 8, 2026	51-200	66 contacts →
	Indirect evidence “We are personal injury litigators in practice for over 50 years representing the seriously injured.” Source: RevenueBase Database · checked Sep 8, 2026
25	Haworth Barber & Gerstman, LLC	Partial evidence	New York, NY, United StatesHQ checked Sep 8, 2026	11-50	52 contacts →
	Partial evidence “Haworth Barber & Gerstman, LLC is a trial and litigation law firm with offices in New York and New Jersey.” Source: RevenueBase Database · checked Sep 8, 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: class action 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 class action law firms.
Partial evidence: Its own public description names part of class action law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name class action 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 251 class action law firms based in New York, United States

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Class action law firms based in New York, United States at a glance

As of Sep 8, 2026

61.0%Verified-email coverage

46.3%Mobile-number coverage

22.6Average contacts per company

11-50Median size (employees)

121.1%Largest-city concentration · New York

Sep 8, 2026Page data refreshed

Companies by employee count

1-10

120

11-50

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

3,2120–30

23031–60

061–90

090–180

14180+

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 class action 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 New York, United States whose own description of what they do matches “class action 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 class action 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 class action law firms, and records with no verified work email. Companies headquartered outside New York 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, 3,456 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 8, 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.

Class action law firms by metro in the United States

Class action law firms in New York304
Class action law firms in Los Angeles222
Class action law firms in Houston219
Class action law firms in Chicago178
Class action law firms in Atlanta139
Class action law firms in San Diego125
Class action law firms in Dallas121
Class action law firms in San Francisco108

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 class action 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 class action law firms are there based in New York, United States?

RevenueBase identified 251 class action law firms headquartered in New York, 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?

Boies Schiller Flexner LLP, headquartered in New York, tops this list with the largest team on record.

Which city has the most class action law firms?

New York leads with 304 headquartered companies, followed by Los Angeles (222) and Houston (219).

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 3,456 verified decision-maker contacts tracked across these 251 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 8, 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 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.