Company lists · Data refreshed September 2026
Top 25 Clinical research staffing agencies based in San Diego, United States
RevenueBase identified 60 clinical research staffing agencies headquartered in San Diego, United States as of September 2026 and tracks 1,107 professional contacts across them, including 333 with verified work emails. Across the United States, New York is the largest hub for this category (98 companies); San Diego has 60.
This list covers clinical research staffing agencies headquartered in San Diego, 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.
The 25 largest clinical research staffing agencies based in San Diego, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 314 contacts → | ||||
Indirect evidence “Our fundamental mission here at Medical Professionals is to promote HAPPY and HEALTHY lives – for you, for your team and our team, for the healthcare candidates we recruit, for…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 137 contacts → | ||||
Indirect evidence “At R&D Partners, part of Acacium Group, we connect skilled life sciences professionals with world leading innovators.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 79 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 56 contacts → | ||||
Indirect evidence “Healthcare is about people.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 46 contacts → | ||||
Indirect evidence “For more information please also visit this page: Put our 30 years of healthcare recruiting expertise to the test.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 45 contacts → | ||||
Partial evidence “Astrya Medical Staffing is a San Diego-based medical staffing agency that empowers healthcare professionals by connecting them with tailored opportunities that align with their…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 31 contacts → | ||||
Partial evidence “Where Quality and Staffing Meet Located in the heart of San Diego’s Life Sciences and Hi-Tech hub of Sorrento Valley, QualStaff Resources is an established professional recruiting…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 31 contacts → | ||||
Indirect evidence “Hire Possibilities" Brio Resource Group - Your biopharmaceutical recruiting experts - is transforming the way today's most sought after "A" Talent is introduced and placed in…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 27 contacts → | ||||
Indirect evidence “UniTriTeam is a small, woman-owned boutique technology services and staff augmentation business that started because our founders had a passion for empowering women in the…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 24 contacts → | ||||
Partial evidence “Founded in 2006, Trialfacts specializes in patient recruitment for clinical trials across the United States, New Zealand, and Australia.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 24 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 20 contacts → | ||||
Indirect evidence “EnquBio is a wholly owned and operated drug development CRO out of San Diego, CA.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 17 contacts → | ||||
Strong evidence “AcelaBio, wholly owned by The Alimentiv Health Trust, was incorporated in 2020 and aims to meet the growing clinical research demand for quality and efficiency in laboratory…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 13 contacts → | ||||
Strong evidence “M&B Sciences, Inc, is a minority owned, tech focused life science research firm that is an industry leader in recruiting patients for global clinical trials, market research and…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 13 contacts → | ||||
Indirect evidence “Acculab is a rapidly growing, OLAW-assured, preclinical CRO in the San Diego area, designed to assist you with every step along the R&D in vivo journey.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 13 contacts → | ||||
Indirect evidence “As a boutique firm, we are able to take the time to understand our clients and their business.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 11 contacts → | ||||
Partial evidence “ClinDART is a pioneer in designing custom data management and statistical programming solutions that maximize your chances of a successful clinical trial in the pharmaceutical…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 11 contacts → | ||||
Partial evidence “From scientific content to digital marketing to flexible staffing, we're here to help.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 10 contacts → | ||||
Strong evidence “Pacific Research Network (PRN) is a Southern California clinical research facility that specializes in examining new, investigational medications for the treatment of a variety of…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 9 contacts → | ||||
Partial evidence “L3 Healthcare is a full-service contract research organization (CRO) and healthcare consulting firm focused on in vitro diagnostics (IVD) and medical devices.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 7 contacts → | ||||
Strong evidence “Apex Clinical Research is a dedicated clinical trials research site that focuses on Phase I through Phase IV studies.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 6 contacts → | ||||
Indirect evidence “A well executed aggressive start helps set the pace for your study.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 6 contacts → | ||||
Indirect evidence “HK Recruiting is a specialized recruiting partner to the biotech, life sciences, pharmaceutical, and medical device industries.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 5 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 4 contacts → | ||||
Partial evidence “Acres Biosciences is a leading contract research organization dedicated to advancing drug discovery through cell line engineering, assay development, and in vivo preclinical…” Source: RevenueBase Database · checked Sep 27, 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: clinical research staffing agencies. 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 staffing agencies.
- Partial evidence
- Its own public description names part of clinical research staffing agencies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name clinical research staffing agencies. 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 60 clinical research staffing agencies based in San Diego, United States
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 333 reachable decision-makers.
Free signup · no credit card
Clinical research staffing agencies based in San Diego, United States at a glance
As of Sep 27, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for San Diego, so it is reported there. Company counts and contact totals on this page are exact for San Diego, over 60 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 staffing agencies, 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 Diego, United States whose own description of what they do matches “clinical research staffing agencies”. 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 staffing agencies), 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 staffing agencies, and records with no verified work email. Companies headquartered outside San Diego 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, 333 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 staffing agencies by metro in the United States
- Clinical research staffing agencies in New York98
- Clinical research staffing agencies in Miami65
- Clinical research staffing agencies in Houston60
- Clinical research staffing agencies in Atlanta54
- Clinical research staffing agencies in Dallas43
- Clinical research staffing agencies in Chicago39
- Clinical research staffing agencies in Austin36
- Clinical research staffing agencies in Boston35
- Clinical research staffing agencies in Raleigh35
- Clinical research staffing agencies in Los Angeles32
- Clinical research staffing agencies in Philadelphia30
- Clinical research staffing agencies in Tampa28
- Clinical research staffing agencies in San Antonio27
- Clinical research staffing agencies in Orlando25
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 staffing agencies, 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 staffing agencies are there based in San Diego, United States?
RevenueBase identified 60 clinical research staffing agencies headquartered in San Diego, 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?
Medical Professionals, headquartered in San Diego, tops this list with the largest team on record.
Which city in the United States has the most clinical research staffing agencies?
New York leads the United States with 98 headquartered companies, followed by Miami (65) and Houston (60). San Diego has 60.
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 333 verified decision-maker contacts tracked across these 60 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 60 clinical research staffing agencies based in San Diego, United States. Start with a free account, no credit card.
Download this list →Related lists
Clinical research staffing agencies by geography
- Clinical research staffing agencies based in Ahmedabad, India
- Clinical research staffing agencies based in Hyderabad, India
- Clinical research staffing agencies based in Atlanta, United States
- Clinical research staffing agencies based in Austin, United States
- Clinical research staffing agencies based in Boston, United States
- Clinical research staffing agencies based in Chicago, United States
- Clinical research staffing agencies based in Dallas, United States
- Clinical research staffing agencies based in Houston, United States
- Clinical research staffing agencies based in Los Angeles, United States
- Clinical research staffing agencies based in Miami, United States
- Clinical research staffing agencies based in New York, United States
- Clinical research staffing agencies based in Orlando, United States
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Clinical research staffing agencies based in Ahmedabad, India
- Clinical research staffing agencies based in Hyderabad, India
- Clinical research staffing agencies based in Atlanta, United States
- Clinical research staffing agencies based in Austin, United States
- Clinical research staffing agencies based in Boston, United States
- Clinical research staffing agencies based in Chicago, United States