Company lists · Data refreshed September 2026

Top 25 Clinical trial law firms based in Los Angeles, United States

Name: Clinical trial law firms based in Los Angeles, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 45 companies tracked

RevenueBase identified 45 clinical trial law firms headquartered in Los Angeles, United States as of September 2026 and tracks 690 professional contacts across them, including 384 with verified work emails. Across the United States, Houston is the largest hub for this category (95 companies); Los Angeles has 45.

This list covers clinical trial law firms headquartered in Los Angeles, 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 27, 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 27, 2026 86% judged on-target in blind review

45Companies

690Contacts tracked

384Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest clinical trial law firms based in Los Angeles, United States

Ranked by team size

Top 25 of 45 clinical trial law firms based in Los Angeles, United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to clinical trial 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	Panish Shea Ravipudi LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	51-200	100 contacts →
	Partial evidence “Panish \| Shea \| Ravipudi LLP is a plaintiffs personal injury law firm representing clients dealing with a life-altering injury, the death of a family member or other challenges…” Source: RevenueBase Database · checked Sep 27, 2026
2	Wisner Baum	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	51-200	85 contacts →
	Indirect evidence “We have championed our clients’ wrongful death and personal injury claims for over 40 years.” Source: RevenueBase Database · checked Sep 27, 2026
3	Miller Barondess, LLP	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	51-200	70 contacts →
	Strong evidence “Miller Barondess, LLP, is a Los Angeles-based law firm specializing in litigation, trial, and appellate practice in California and around the country.” Source: RevenueBase Database · checked Sep 27, 2026
4	Greenberg Gross LLP	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	51-200	55 contacts →
	Strong evidence “Greenberg Gross LLP is a nationally recognized plaintiff trial law firm representing individuals and families in life-altering disputes against powerful institutions.” Source: RevenueBase Database · checked Sep 27, 2026
5	Downtown LA LAW Group	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	51-200	54 contacts →
	Partial evidence “Downtown LA Law Group is an industry leading plaintiff civil litigation law firm headquartered in the heart of Los Angeles.” Source: RevenueBase Database · checked Sep 27, 2026
6	Arias Sanguinetti Trial Lawyers	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	11-50	48 contacts →
	Partial evidence “We are TRIAL LAWYERS AND COMPLEX LITIGATORS – we prepare every case for trial.” Source: RevenueBase Database · checked Sep 27, 2026
7	Stoll, Nussbaum & Polakov	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	11-50	18 contacts →
	Indirect evidence “Since 1970, Stoll, Nussbaum & Polakov has represented over clients in Southern California.” Source: RevenueBase Database · checked Sep 27, 2026
8	Taylor Ring	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	1-10	14 contacts →
	Indirect evidence “Los Angeles Personal Injury, Wrongful Death, Sexual Abuse and Employment Lawyers.” Source: RevenueBase Database · checked Sep 27, 2026
9	Deldar Legal	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	11-50	14 contacts →
	Indirect evidence “Deldar is a top personal injury firm, known for its aggressive and unwavering commitment to seeking justice in the courtroom.” Source: RevenueBase Database · checked Sep 27, 2026
10	Cowper LAW LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	1-10	11 contacts →
	Partial evidence “Cowper Law LLP is a boutique law firm that is different.” Source: RevenueBase Database · checked Sep 27, 2026
11	Biren LAW Group	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	1-10	11 contacts →
	Indirect evidence “Aggressive excellence in the contingency fee representation of people who have suffered brain injuries, spine injuries, other catastrophic injuries or death of a loved one.” Source: RevenueBase Database · checked Sep 27, 2026
12	Kermani LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	1-10	11 contacts →
	Partial evidence “What sets us apart is our vast trial experience.” Source: RevenueBase Database · checked Sep 27, 2026
13	Nadrich Accident Injury Lawyers	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	11-50	10 contacts →
	Partial evidence “Established in 1990, we are an aggressive and experienced California personal injury & mass torts law firm handling auto accidents, mass torts, pharmaceutical drug recall…” Source: RevenueBase Database · checked Sep 27, 2026
14	Selarz LAW	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	1-10	10 contacts →
	Partial evidence “Personal Injury Litigation & Trial Attorneys” Source: RevenueBase Database · checked Sep 27, 2026
15	Bridging Consulting LLC	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	1-10	9 contacts →
	Partial evidence “Bridging Consulting LLC is a boutique Regulatory, Quality and Clinical consulting firm dedicated to providing strategic and operational consulting services to AI startups and…” Source: RevenueBase Database · checked Sep 27, 2026
16	Levian LAW	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	1-10	8 contacts →
	Strong evidence “Levian Law is an experienced trial firm that helps clients resolve personal injury and employment law issues in California.” Source: RevenueBase Database · checked Sep 27, 2026
17	Deblase Brown Eyerly LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	1-10	8 contacts →
	Partial evidence “DeBlase Brown Eyerly LLP is a leading California law firm representing people and families harmed by asbestos, chemicals and other catastrophic injuries.” Source: RevenueBase Database · checked Sep 27, 2026
18	Philip Michels LAW	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	11-50	5 contacts →
	Partial evidence “For over 30 years, attorneys at the Law Offices of Michels & Lew, a Los Angeles based personal injury firm, have served clients throughout California and surrounding states.” Source: RevenueBase Database · checked Sep 27, 2026
19	Estrada LAW Group APC	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	11-50	5 contacts →
	Partial evidence “At Estrada Law Group, we stand by injured victims and their families, ensuring they receive the justice and compensation they deserve.” Source: RevenueBase Database · checked Sep 27, 2026
20	Nelson Hardiman, LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	11-50	5 contacts →
	Indirect evidence “Based in Los Angeles, Nelson Hardiman represents healthcare providers and other businesses affected by healthcare licensing, operational, and reimbursement requirements, from…” Source: RevenueBase Database · checked Sep 27, 2026
21	Sadeghian LAW Firm	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	1-10	4 contacts →
	Partial evidence “Nima Sadeghian is a nationally recognized trial attorney who always listens and works closely with his clients.” Source: RevenueBase Database · checked Sep 27, 2026
22	Paluch Law, P.C	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	1-10	3 contacts →
	Partial evidence “Paluch Law brings a unique combination of experience with a solid understanding of the challenges that clients in these heavily regulated industries face.” Source: RevenueBase Database · checked Sep 27, 2026
23	Medtech Impact Partners	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	1-10	3 contacts →
	Indirect evidence “Talk to the FDA Before You Talk to the FDA MedTech Impact Partners is a global leader in regulatory strategy and solutions.” Source: RevenueBase Database · checked Sep 27, 2026
24	Banafshe LAW Firm, PC	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	51-200	2 contacts →
	Partial evidence “Banafshe Law Firm, PC was established in 2003 with one goal in mind, to provide client focused legal services.” Source: RevenueBase Database · checked Sep 27, 2026
25	The Trial LAW Offices Of Bradley I. Kramer, M.D., ESQ	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	1-10	2 contacts →
	Strong evidence “The Trial Law Offices of Bradley I.” Source: RevenueBase Database · checked Sep 27, 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: clinical trial 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 clinical trial law firms.
Partial evidence: Its own public description names part of clinical trial law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name clinical trial 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 45 clinical trial law firms based in Los Angeles, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 384 reachable decision-makers.

Free signup · no credit card

View the full list →

Clinical trial law firms based in Los Angeles, United States at a glance

As of Sep 27, 2026

55.7%Verified-email coverage

15.3Average contacts per company

1-10Median size (employees)

Sep 27, 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 Los Angeles, so it is reported there. Company counts and contact totals on this page are exact for Los Angeles, over 45 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 clinical trial 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 Los Angeles, United States whose own description of what they do matches “clinical trial 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 clinical trial 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 clinical trial law firms, and records with no verified work email. Companies headquartered outside Los Angeles 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, 384 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 27, 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.

Clinical trial law firms 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 clinical trial 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 clinical trial law firms are there based in Los Angeles, United States?

RevenueBase identified 45 clinical trial law firms headquartered in Los Angeles, 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?

Panish Shea Ravipudi LLP, headquartered in Los Angeles, tops this list with the largest team on record.

Which city in the United States has the most clinical trial law firms?

Houston leads the United States with 95 headquartered companies, followed by Chicago (77) and New York (75). Los Angeles has 45.

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 384 verified decision-maker contacts tracked across these 45 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 27, 2026.

Ready to reach these companies? Verified emails and direct dials for all 45 clinical trial law firms based in Los Angeles, United States. Start with a free account, no credit card.

Download this list →

Related lists

Clinical trial law firms by geography

Browse the directory

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.