Company lists · Data refreshed September 2026
Top 25 Securities litigation support firms based in the United States
RevenueBase identified 670 securities litigation support firms headquartered in the United States as of September 2026 and tracks 9,444 professional contacts across them, including 5,201 with verified work emails. New York is the largest hub.
This list covers securities litigation support 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 22, 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 securities litigation support firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,068 contacts → | ||||
Indirect evidence “Over the past 25 years, QPWB is one of the fastest-growing law firms in the US.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 675 contacts → | ||||
Indirect evidence “U.S.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 367 contacts → | ||||
Indirect evidence “IMS Legal Strategies is a trusted partner to law firms and corporations worldwide, providing the expertise and technology needed to elevate case strategies and overcome…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 338 contacts → | ||||
Partial evidence “Robbins Geller Rudman & Dowd LLP is one of the world’s leading complex class action firms representing plaintiffs in securities fraud, antitrust, breach of fiduciary duty…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 255 contacts → | ||||
Partial evidence “ARCHER Systems, LLC (“ARCHER”) is the leading provider of comprehensive litigation-related settlement solutions including claims administration, healthcare lien resolution, and…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 232 contacts → | ||||
Indirect evidence “Founded in 1998, Resolution Economics provides sophisticated economic, statistical, and financial analyses, forensic investigations, forensic technology, dispute advisory, expert…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 190 contacts → | ||||
Indirect 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 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 190 contacts → | ||||
Indirect evidence “For over 30 years, Reliable has been the trusted and cost-effective services provider to leading law firms, corporations, and other businesses throughout the United States.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 189 contacts → | ||||
Strong evidence “Founded in 1985, the Marker Group is the nation’s most trusted name in record collection, medical review, data analysis, and many other litigation support services.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 181 contacts → | ||||
Partial evidence “Kessler Topaz Meltzer & Check, LLP is one of the largest firms in the world specializing in the prosecution of complex litigation on a contingent basis.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 156 contacts → | ||||
Partial evidence “Financial Recovery Technologies is a technology-based services firm that helps institutional investors identify, file claims, and collect funds made available in securities class…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 150 contacts → | ||||
Strong evidence “Achieve more, every day, by shifting a variety of critical business functions – including litigation support, eDiscovery, digital forensics, paper discovery, managed review and…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 130 contacts → | ||||
Indirect evidence “Hagens Berman Sobol Shapiro LLP is an internationally recognized law firm headquartered in Seattle, Washington.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 105 contacts → | ||||
Partial evidence “We offer end-to-end solutions for financial services firms and their counsel, providing support throughout the lifecycle of their legal matters.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 95 contacts → | ||||
Partial evidence “Founded in 1998, Sichenzia Ross Ference Carmel LLP ("SRFC") has a long-standing reputation in the securities industry.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 81 contacts → | ||||
Strong evidence “Litigation law firm focusing on securities, construction, architect/engineer, labor and employment, coverage and environmental law.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 72 contacts → | ||||
Partial evidence “Hilgers Graben PLLC is an elite nationwide litigation and discovery counsel firm specializing in complex commercial and intellectual property litigation, discovery counsel…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 71 contacts → | ||||
Strong 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 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 70 contacts → | ||||
Indirect evidence “A recognized leader in forensic and financial consulting for more than 60 years.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 68 contacts → | ||||
Partial evidence “Peiffer Wolf Carr Kane Conway & Wise, LLP is a full-service litigation law firm with offices in New Orleans, Cleveland, Los Angeles, San Francisco, St.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 66 contacts → | ||||
Partial evidence “Founded in 1974, BVA is a boutique litigation, valuation, and financial advisory firm.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 62 contacts → | ||||
Strong evidence “Paszkiewicz Litigation Services is a court reporter-owned litigation support company headquartered in the St.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 57 contacts → | ||||
Partial evidence “Forensic accounting, economic damages, valuation and fraud expert witnesses for commercial and personal injury litigation matters and marital dissolution.” Source: RevenueBase Database · checked Sep 22, 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: securities litigation support 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 securities litigation support firms.
- Partial evidence
- Its own public description names part of securities litigation support firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name securities litigation support 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 670 securities litigation support firms based in the United States
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Securities litigation support firms based in the United States at a glance
As of Sep 22, 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 670 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 litigation support 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 “securities litigation support 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 securities litigation support 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 securities litigation support 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, 5,201 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 22, 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 litigation support firms by metro
- Securities litigation support firms in New York91
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 securities litigation support 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 securities litigation support firms are there based in the United States?
RevenueBase identified 670 securities litigation support 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?
Quintairos, Prieto, Wood & Boyer, P.A, headquartered in Miami, tops this list with the largest team on record.
Which city has the most securities litigation support firms?
New York leads with 91 headquartered companies, followed by Los Angeles (20) and Chicago (18).
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 5,201 verified decision-maker contacts tracked across these 670 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 22, 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.
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