Company lists · Data refreshed September 2026

Top 25 Mass tort litigation attorneys based in San Francisco, United States

Name: Mass tort litigation attorneys based in San Francisco, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 47 companies tracked

RevenueBase identified 47 mass tort litigation attorneys headquartered in San Francisco, United States as of September 2026 and tracks 607 professional contacts across them, including 246 with verified work emails. Houston is the largest hub.

This list covers mass tort litigation attorneys headquartered in San Francisco, 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 20, 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 20, 2026 86% judged on-target in blind review

47Companies

607Contacts tracked

246Verified emails

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The 25 largest mass tort litigation attorneys based in San Francisco, United States

Ranked by team size

Top 25 of 47 mass tort litigation attorneys based in San Francisco, United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to mass tort litigation attorneys: 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	Walkup, Melodia, Kelly & Schoenberger	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	51-200	60 contacts →
	Indirect evidence “Established in 1959, we are one of the premier personal injury firms in the western United States.” Source: RevenueBase Database · checked Sep 20, 2026
2	Sher Edling LLP	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	11-50	36 contacts →
	Indirect evidence “Sher Edling LLP represents states, tribes, water providers, public agencies, and businesses in high-impact, high-value environmental cases.” Source: RevenueBase Database · checked Sep 20, 2026
3	Girard Sharp LLP	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	11-50	30 contacts →
	Partial evidence “Over the past two decades, Girard Sharp lawyers have earned a distinguished reputation in the representation of plaintiffs in class actions and other complex litigation.” Source: RevenueBase Database · checked Sep 20, 2026
4	Lewis & Llewellyn LLP	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	11-50	28 contacts →
	Indirect evidence “Lewis & Llewellyn LLP is a California-based law firm that represents plaintiffs and defendants throughout the United States.” Source: RevenueBase Database · checked Sep 20, 2026
5	The Veen Firm	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	11-50	28 contacts →
	Partial evidence “We are nationally recognized trial attorneys who are experts at our craft.” Source: RevenueBase Database · checked Sep 20, 2026
6	Gallo LLP	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	1-10	22 contacts →
	Partial evidence “Gallo LLP focuses on complex civil litigation.” Source: RevenueBase Database · checked Sep 20, 2026
7	Arns Davis LAW	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	11-50	22 contacts →
	Indirect evidence “Arns Davis Law, based in San Francisco, has earned a national reputation for tenaciously representing individuals in cases involving catastrophic injuries, wrongful death, and…” Source: RevenueBase Database · checked Sep 20, 2026
8	Ongaro PC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	11-50	20 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
9	Gutride Safier LLP	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	11-50	16 contacts →
	Indirect evidence “Gutride Safier LLP is a nationally recognized law firm headquartered in San Francisco.” Source: RevenueBase Database · checked Sep 20, 2026
10	The Cartwright LAW Firm, INC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	11-50	11 contacts →
	Indirect evidence “In business for more than 50 years, The Cartwright Law Firm is nationally recognized as a leading authority in personal injury, wrongful death, product liability, employment law…” Source: RevenueBase Database · checked Sep 20, 2026
11	Phillips, Erlewine, Given & Carlin LLP	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	11-50	11 contacts →
	Indirect evidence “Our law firm's core mission is to serve our clients ethically, effectively, and efficiently.” Source: RevenueBase Database · checked Sep 20, 2026
12	Levin Simes	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	51-200	7 contacts →
	Indirect evidence “LEVIN SIMES LLP is one of the nation’s leading Product Liability and Mesothelioma law firms.” Source: RevenueBase Database · checked Sep 20, 2026
13	Blumenthal, Nordrehaug & Bhowmik	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	1-10	7 contacts →
	Indirect evidence “Blumenthal, Nordrehaug & Bhowmik is a California employment law and class action law firm that represents employees, consumers and investors throughout the state to recover from…” Source: RevenueBase Database · checked Sep 20, 2026
14	Carlson Calladine & Peterson LLP	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	11-50	7 contacts →
	Partial evidence “Complex litigation, significant wins and strategic advocacy are the hallmarks of Carlson, Calladine & Peterson LLP's practice.” Source: RevenueBase Database · checked Sep 20, 2026
15	Lexington LAW Group	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	1-10	7 contacts →
	Indirect evidence “The Lexington Law Group is a public interest law firm specializing in consumer protection and environmental cases.” Source: RevenueBase Database · checked Sep 20, 2026
16	Keller Grover, LLP	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	1-10	6 contacts →
	Partial evidence “With over 25 years of experience litigating fraud and employment cases, Keller Grover prides itself on putting its clients first.” Source: RevenueBase Database · checked Sep 20, 2026
17	Audet & Partners, LLP	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	11-50	5 contacts →
	Indirect evidence “Audet & Partners, LLP is a nationally recognized trial firm located in San Francisco and affiliated with firms throughout the United States.” Source: RevenueBase Database · checked Sep 20, 2026
18	Gross Klein PC	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	1-10	5 contacts →
	Partial evidence “Gross Klein PC represents individuals, businesses, non-profit organizations, governmental entities, and Indian tribes in litigation and regulatory proceedings throughout the…” Source: RevenueBase Database · checked Sep 20, 2026
19	Choulos Choulos And Wyle	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	1-10	5 contacts →
	Indirect evidence “I am a partner at Choulos Choulos & Wyle, a highly focused law firm consisting of partners only, who represent clients who have suffered serious personal injuries or the loss of…” Source: RevenueBase Database · checked Sep 20, 2026
20	Francis Gourgon & Gonzalez, LLP	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	1-10	4 contacts →
	Partial evidence “We are a civil litigation law firm specializing in plaintiff side personal injury and employment law.” Source: RevenueBase Database · checked Sep 20, 2026
21	Fiore Achermann	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	1-10	3 contacts →
	Indirect evidence “At Fiore Achermann, personal injury law is what we do.” Source: RevenueBase Database · checked Sep 20, 2026
22	The Abel Firm	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	1-10	2 contacts →
	Indirect evidence “The Abel Firm is experienced and trusted San Francisco personal injury law firm.” Source: RevenueBase Database · checked Sep 20, 2026
23	Rencher LAW Group, P.C	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	1-10	2 contacts →
	Partial evidence “Attorneys and Counselors At Law dedicated to serving those injured and who lost loved ones.” Source: RevenueBase Database · checked Sep 20, 2026
24	Oium Reyen & Pryor	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	11-50	1 contacts →
	Indirect evidence “Proudly established in San Francisco by experienced civil trial lawyers, Oium Reyen & Pryor is committed to providing aggressive, efficient representation of both individuals and…” Source: RevenueBase Database · checked Sep 20, 2026
25	Skikos, Crawford, Skikos & Joseph, LLP	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	11-50	1 contacts →
	Strong evidence “Skikos, Crawford, Skikos & Joseph represents clients in mass tort as well as single injury cases.” Source: RevenueBase Database · checked Sep 20, 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: mass tort litigation attorneys. 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 mass tort litigation attorneys.
Partial evidence: Its own public description names part of mass tort litigation attorneys, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name mass tort litigation attorneys. 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 47 mass tort litigation attorneys based in San Francisco, United States

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Mass tort litigation attorneys based in San Francisco, United States at a glance

As of Sep 20, 2026

40.5%Verified-email coverage

12.9Average contacts per company

1-10Median size (employees)

348.9%Largest-city concentration · Houston

Sep 20, 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 San Francisco, so it is reported there. Company counts and contact totals on this page are exact for San Francisco, over 47 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 mass tort litigation attorneys, 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 San Francisco, United States whose own description of what they do matches “mass tort litigation attorneys”. 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 mass tort litigation attorneys), 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 mass tort litigation attorneys, and records with no verified work email. Companies headquartered outside San Francisco 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, 246 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 20, 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.

Mass tort litigation attorneys by metro in the United States

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 mass tort litigation attorneys, 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 mass tort litigation attorneys are there based in San Francisco, United States?

RevenueBase identified 47 mass tort litigation attorneys headquartered in San Francisco, 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?

Walkup, Melodia, Kelly & Schoenberger, headquartered in San Francisco, tops this list with the largest team on record.

Which city has the most mass tort litigation attorneys?

Houston leads with 164 headquartered companies, followed by Chicago (142) and New York (131).

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 246 verified decision-maker contacts tracked across these 47 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 20, 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.