Company lists · Data refreshed September 2026

Top 25 Clinical research consulting firms based in Los Angeles, United States

Name: Clinical research consulting 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 58 companies tracked

RevenueBase identified 58 clinical research consulting firms headquartered in Los Angeles, United States as of September 2026 and tracks 293 professional contacts across them, including 119 with verified work emails. Across the United States, Boston is the largest hub for this category (158 companies); Los Angeles has 58.

This list covers clinical research consulting 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

58Companies

293Contacts tracked

119Verified emails

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The 25 largest clinical research consulting firms based in Los Angeles, United States

Ranked by team size

Top 25 of 58 clinical research consulting 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 research consulting 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	Amicis Research Center	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	11-50	47 contacts →
	Strong evidence “Amicis Research Center is an organization dedicated in fulfilling the mantra, “Enthusiasm, Motivation and Empathy” in the field of clinical research.” Source: RevenueBase Database · checked Sep 27, 2026
2	RDI	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	11-50	30 contacts →
	Indirect evidence “RDI is a tech-enabled CRO, Biobank, and Lab that helps In Vitro Diagnostic manufacturers who struggle to get FDA clearance for their products by sourcing the blood samples they…” Source: RevenueBase Database · checked Sep 27, 2026
3	People Science	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	11-50	27 contacts →
	Strong evidence “Founded by the pioneers of decentralized clinical trials, People Science is a clinical research company transforming how alternative, functional, and natural health products are…” Source: RevenueBase Database · checked Sep 27, 2026
4	Axis Clinical Trials	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	51-200	22 contacts →
	Indirect evidence “AXIS represents the center where sub specialties and expertise meet.” Source: RevenueBase Database · checked Sep 27, 2026
5	MT Group	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	11-50	18 contacts →
	Partial evidence “MT Group is a leading biospecimen Contract Research Organization (CRO) that has been enhancing biomarker discovery and validation for pharmaceutical, biotechnology, and diagnostic…” Source: RevenueBase Database · checked Sep 27, 2026
6	Macro Trials	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	1-10	12 contacts →
	Strong evidence “Macro Trials is the precision research clinical platform, driving increased research velocity and an amplified patient experience to unlock value for all stakeholders in the…” Source: RevenueBase Database · checked Sep 27, 2026
7	Axon Clinical Research	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	1-10	12 contacts →
	Strong evidence “We work with minority physicians and specialty practices who wish to incorporate Clinical Research Trials into their current clinic.” Source: RevenueBase Database · checked Sep 27, 2026
8	Medqia, LLC	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	51-200	9 contacts →
	Strong evidence “MedQIA is a global, full service, contract research organization specializing in Quantitative Image Analysis for clinical trials.” Source: RevenueBase Database · checked Sep 27, 2026
9	Compliagent	Partial evidence	Los Angeles, United StatesHQ checked Sep 27, 2026	11-50	9 contacts →
	Partial evidence “Compliagent is a Los Angeles‐based regulatory consulting firm serving healthcare providers nationally.” Source: RevenueBase Database · checked Sep 27, 2026
10	Bridging Consulting LLC	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	1-10	9 contacts →
	Strong 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
11	Clarity Clinical Research	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	1-10	8 contacts →
	Strong evidence “Clarity Clinical Research is a dedicated multi-specialty research site that conducts Phase II-IV research studies, located in the heart of the Los Angeles California area.” Source: RevenueBase Database · checked Sep 27, 2026
12	Results Patient Recruitment Media, Corporation	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	11-50	5 contacts →
	Indirect evidence “CEO, Taryn Poole knows that true success with patient recruitment advertising requires a rare amalgam of different knowledge bases.” Source: RevenueBase Database · checked Sep 27, 2026
13	Landmark Science	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	11-50	4 contacts →
	Indirect evidence “We are a CRO providing RWE and HEOR generation to support the product lifecycle.” Source: RevenueBase Database · checked Sep 27, 2026
14	Research Mind	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	1-10	3 contacts →
	Partial evidence “Our mission is to push the boundaries of knowledge and understanding through cutting-edge research across a variety of disciplines.” Source: RevenueBase Database · checked Sep 27, 2026
15	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
16	Alliance Research Institute	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	1-10	3 contacts →
	Strong evidence “Alliance Research Institute is a clinical trial company that manages the development of tomorrows healthcare practices, providing exceptional patient care and ensuring efficient…” Source: RevenueBase Database · checked Sep 27, 2026
17	AOC Oncology	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	1-10	3 contacts →
	Indirect evidence “SECURE THE FUTURE OF YOUR HOSPITAL'S CANCER PROGRAM Trends predict substantial market growth in the outpatient cancer services in the next decade.” Source: RevenueBase Database · checked Sep 27, 2026
18	Target BIO Research	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	1-10	2 contacts →
	Partial evidence “Target Bio Research is a Life Sciences Research and Recruitment agency; assisting healthcare and drug development groups in the strategic growth and scaling of their businesses.” Source: RevenueBase Database · checked Sep 27, 2026
19	PRUVN	Indirect evidence	Los Angeles, United StatesHQ checked Sep 27, 2026	1-10	2 contacts →
	Indirect evidence “We're revolutionizing the way the wellness industry operates.” Source: RevenueBase Database · checked Sep 27, 2026
20	Compliance Regulators	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	1-10	1 contacts →
	Partial evidence “Compliance Regulators is your indie one-stop shop to help your brand ensure product compliance and substantiate claims with validated testing and research.” Source: RevenueBase Database · checked Sep 27, 2026
21	The Springboard Company	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	1-10	1 contacts →
	Strong evidence “The Springboard Company is a marketing research and consulting firm that knows how to translate key consumer insights in to revenue.” Source: RevenueBase Database · checked Sep 27, 2026
22	Illume Insights	Partial evidence	Los Angeles, United StatesHQ checked Sep 27, 2026	1-10	1 contacts →
	Partial evidence “Consultancy for consumer insights & brand strategy with a focus on quantitative research.” Source: RevenueBase Database · checked Sep 27, 2026
23	The Contract Advisory	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	1-10	1 contacts →
	Indirect evidence “TCA brings the knowledge and experience gained from over in financial agreement negotiation to the world of medical professionals.” Source: RevenueBase Database · checked Sep 27, 2026
24	Blue Raven Scientific LLC	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	1-10	1 contacts →
	Partial evidence “Blue Raven Scientific LLC is a woman-owned small business consulting firm that brings together Ph.D.” Source: RevenueBase Database · checked Sep 27, 2026
25	PV Safety Solutions	Indirect evidence	Los Angeles, United StatesHQ checked Sep 27, 2026	1-10	1 contacts →
	Indirect evidence “Expert consultants providing Pharmacovigilance Services” 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 research consulting 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 research consulting firms.
Partial evidence: Its own public description names part of clinical research consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name clinical research consulting 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 58 clinical research consulting firms based in Los Angeles, United States

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Clinical research consulting firms based in Los Angeles, United States at a glance

As of Sep 27, 2026

40.6%Verified-email coverage

5.1Average contacts per company

1-10Median size (employees)

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 58 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 research consulting 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 research consulting 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 research consulting 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 research consulting 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, 119 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 research consulting 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 research consulting 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 research consulting firms are there based in Los Angeles, United States?

RevenueBase identified 58 clinical research consulting 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?

Amicis Research Center, headquartered in Los Angeles, tops this list with the largest team on record.

Which city in the United States has the most clinical research consulting firms?

Boston leads the United States with 158 headquartered companies, followed by New York (153) and San Diego (137). Los Angeles has 58.

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 119 verified decision-maker contacts tracked across these 58 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.

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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.