Company lists · Data refreshed September 2026

Top 25 Research and development outsourcing providers based in San Diego, United States

RevenueBase identified 52 research and development outsourcing providers headquartered in San Diego, United States as of September 2026 and tracks 1,225 professional contacts across them, including 566 with verified work emails. San Diego is the largest hub.

This list covers research and development outsourcing providers 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
52Companies
1,225Contacts tracked
566Verified emails
Explore all 52 companies → Free signup · no credit card · 500 free credits

The 25 largest research and development outsourcing providers based in San Diego, United States

Ranked by team size
Top 25 of 52 research and development outsourcing providers based in San Diego, United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names research and development outsourcing providers: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Crown BiosciencePartial evidence
San Diego, CA, United StatesHQ checked Sep 5, 20261,001-5,000441

“Crown Bioscience, a JSR Life Sciences company, is a global contract research organization (CRO) providing discovery, preclinical, and translational platforms to advance oncology…”

Source: company website · checked Sep 5, 2026
2
Prosciento, INCPartial evidence
San Diego, CA, United StatesHQ checked Sep 5, 2026201-500181

“ProSciento is the leading clinical research organization focused on the continuum of metabolic diseases.”

Source: company website · checked Sep 5, 2026
3
Sequoia Biotech ConsultingIndirect evidence
San Diego, CA, United StatesHQ checked Sep 5, 2026201-500101

“In September 2024, Sequoia Biotech Consulting merged with Syner-G and officially rebranded as Syner-G in 2025.”

Source: company website · checked Sep 5, 2026
4
Therapeutics INCIndirect evidence
San Diego, CA, United StatesHQ checked Sep 5, 202651-20079
Source: company website · checked Sep 5, 2026
5
Chemdiv, INCPartial evidence
San Diego, CA, United StatesHQ checked Sep 5, 2026501-1,00057

“ChemDiv, a fully Integrated Target-to-Market Contract Research Organization (CRO) headquartered in San Diego, CA USA.”

Source: company website · checked Sep 5, 2026
6
Vanguard Clinical, INCIndirect evidence
San Diego, CA, United StatesHQ checked Sep 5, 202651-20056

“Healthcare is about people.”

Source: company website · checked Sep 5, 2026
7
NeublocPartial evidence
San Diego, CA, United StatesHQ checked Sep 5, 202651-20038

“Neubloc is a U.S-based, outsource software design and development firm, founded in, that employs a unique Rightsource model, coupling the best of nearshore design and project…”

Source: company website · checked Sep 5, 2026
8
PharmatekIndirect evidence
San Diego, CA, United StatesHQ checked Sep 5, 2026201-50031

“Pharmatek Laboratories, Inc.”

Source: company website · checked Sep 5, 2026
9
Pharmapace, INCIndirect evidence
San Diego, CA, United StatesHQ checked Sep 5, 202611-5024
Source: company website · checked Sep 5, 2026
10
Phenovista BiosciencesPartial evidence
San Diego, CA, United StatesHQ checked Sep 5, 202611-5020

“Founded in 2014, PhenoVista is a San Diego-based CRO specializing in the development of cell-based, in vitro assays, with an emphasis on phenotypic screening and high-content…”

Source: company website · checked Sep 5, 2026
11
Enqubio INCPartial evidence
San Diego, CA, United StatesHQ checked Sep 5, 202611-5020

“EnquBio is a wholly owned and operated drug development CRO out of San Diego, CA.”

Source: company website · checked Sep 5, 2026
12
AcelabioPartial evidence
San Diego, CA, United StatesHQ checked Sep 5, 202611-5017

“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: company website · checked Sep 5, 2026
13
Somatek INCPartial evidence
San Diego, CA, United StatesHQ checked Sep 5, 202611-5013

“At Somatek, we provide consulting for the development of manufacturing processes for next generation biopharmaceuticals.”

Source: company website · checked Sep 5, 2026
14
Acculab Life SciencesIndirect evidence
San Diego, CA, United StatesHQ checked Sep 5, 202611-5013

“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: company website · checked Sep 5, 2026
15
Clindart, INCIndirect evidence
San Diego, CA, United StatesHQ checked Sep 5, 20261-1011

“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: company website · checked Sep 5, 2026
16
L3 HealthcarePartial evidence
San Diego, CA, United StatesHQ checked Sep 5, 20261-109

“L3 Healthcare is a full-service contract research organization (CRO) and healthcare consulting firm focused on in vitro diagnostics (IVD) and medical devices.”

Source: company website · checked Sep 5, 2026
17
Mabplex Usa, INCIndirect evidence
San Diego, CA, United StatesHQ checked Sep 5, 202611-506

“MABPLEX USA, INC offers our partners contract services from DNA to finished drug product.”

Source: company website · checked Sep 5, 2026
18
Tioga ResearchIndirect evidence
San Diego, CA, United StatesHQ checked Sep 5, 202611-505

“We help our clients advance their topical and transdermal drug programs all the way from product concept assessment through to first regulatory filing, or with one or more stages…”

Source: company website · checked Sep 5, 2026
19
Acres BiosciencesStrong evidence
San Diego, CA, United StatesHQ checked Sep 5, 202611-504

“Acres Biosciences is a leading contract research organization dedicated to advancing drug discovery through cell line engineering, assay development, and in vivo preclinical…”

Source: company website · checked Sep 5, 2026
20
Prescos LLCPartial evidence
San Diego, CA, United StatesHQ checked Sep 5, 20261-104

“PRESCOS LLC, Preclinical Research and Scientific Consulting Services is a preclinical CRO that provides in vivo contract research services (disease models and PK studies), as…”

Source: company website · checked Sep 5, 2026
21
Ardence ConsultingIndirect evidence
San Diego, CA, United StatesHQ checked Sep 5, 20261-103

“We provide consulting and project-based solutions to pharmaceutical, biotechnology, and medical device companies nationwide.”

Source: company website · checked Sep 5, 2026
22San Diego, CA, United StatesHQ checked Sep 5, 20261-103

“The Pacesetter Clinical Research Group seeks to contribute to the scientific advancement of clinical research by facilitating collaboration, and strategic partnerships between…”

Source: company website · checked Sep 5, 2026
23
Caritas ClinicalIndirect evidence
San Diego, CA, United StatesHQ checked Sep 5, 202611-502

“Caritas Clinical Consulting Provides Trial Management, Monitoring (CRAs), Safety, Data, and Administrative (CTAs) Services Customized for Your Clinical Study.”

Source: company website · checked Sep 5, 2026
24
Global R&d Partners, LLCIndirect evidence
San Diego, CA, United StatesHQ checked Sep 5, 20261-102

“Global R&D Partners, LLC is a consulting firm that works closely with pharmaceutical and biotechnology companies to develop novel agents for the diagnosis and treatment of serious…”

Source: company website · checked Sep 5, 2026
25
Morpheus BiolabsPartial evidence
San Diego, CA, United StatesHQ checked Sep 5, 20261-102

“Morpheus Biolabs is a CRO founded in San Diego that provides platform-based services to pharmaceutical companies, biotech and CRO partners, and small to midsize research and…”

Source: company website · checked Sep 5, 2026

Showing 25 of 52 research and development outsourcing providers based in San Diego, United States

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Research and development outsourcing providers based in San Diego, United States at a glance

As of Sep 5, 2026
1-10Median size (employees)
San DiegoLargest hub · 52 HQs
Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
26
11-50
15
51-200
5
201-500
3
501-1,000
2
1,001-5,000
1

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for San Diego, over 52 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 research and development outsourcing providers, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “research and development outsourcing providers”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among research and development outsourcing providers, 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 an evidence 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, 566 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 5, 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.

Research and development outsourcing providers by metro in the United States

Frequently asked

How many research and development outsourcing providers are there based in San Diego, United States?

RevenueBase identified 52 research and development outsourcing providers 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?

Crown Bioscience, headquartered in San Diego, tops this list with the largest team on record.

Which city has the most research and development outsourcing providers?

San Diego leads with 52 headquartered companies, followed by New York (39) and Boston (34).

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 566 verified decision-maker contacts tracked across these 52 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 5, 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 SmartSearch, 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.