Company lists · Data refreshed September 2026
Top 25 Biotech contract development organizations based in San Diego, United States
RevenueBase identified 127 biotech contract development organizations headquartered in San Diego, United States as of September 2026 and tracks 3,143 professional contacts across them, including 1,383 with verified work emails. San Diego is the largest hub.
This list covers biotech contract development organizations 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 16, 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 biotech contract development organizations based in San Diego, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 456 contacts → | ||||
Indirect evidence “Abzena is the leading end-to-end bioconjugate, ADC, and complex biologics CDMO + CRO.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 441 contacts → | ||||
Partial evidence “Crown Bioscience, a JSR Life Sciences company, is a global contract research organization (CRO) providing discovery, preclinical, and translational platforms to advance oncology…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 405 contacts → | ||||
Partial evidence “Ascential Medical & Life Sciences, now including Aspect, D&K Engineering, Kinematic, Korvis, Quantum 3, and NACS, is a turnkey development and manufacturing partner for highly…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 217 contacts → | ||||
Indirect evidence “Invetech is a global engineering and manufacturing partner for cell and gene therapy, diagnostics, IVD, and medtech companies.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 101 contacts → | ||||
Partial evidence “In September 2024, Sequoia Biotech Consulting merged with Syner-G and officially rebranded as Syner-G in 2025.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 79 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 75 contacts → | ||||
Strong evidence “Althea is a fully integrated contract development and manufacturing organization (CDMO) committed to the success of our clients for process development, drug substance…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 74 contacts → | ||||
Partial evidence “Bora Biologics is a global biologics CDMO delivering integrated development and GMP manufacturing solutions from First‑in‑Human through licensed commercial supply.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 69 contacts → | ||||
Indirect evidence “eMolecules is the leading online platform to buy specialty chemistry and hard-to-find molecules.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 68 contacts → | ||||
Partial evidence “Tanvex BioPharma USA, Inc is a biologic pharmaceutical product development and manufacturing organization aiming to provide high quality, value added capabilities to accelerate…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 58 contacts → | ||||
Indirect evidence “Enlaza Therapeutics is pioneering the field of covalent biologics.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 57 contacts → | ||||
Partial evidence “ChemDiv, a fully Integrated Target-to-Market Contract Research Organization (CRO) headquartered in San Diego, CA USA.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 55 contacts → | ||||
Indirect evidence “Eton Bioscience Inc.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 53 contacts → | ||||
Partial evidence “Excellos is a unique full-service CDMO that pairs the collection of critical human cells and tissues with manufacturing and development services to drive innovation in the cell…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 47 contacts → | ||||
Partial evidence “Primrose Bio offers radically new products and tools that unlock unexplored possibilities for the discovery, development, and manufacturing of new molecules.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 40 contacts → | ||||
Partial evidence “Headquartered in San Diego, CA, iXCells Biotechnologies is a leading cell biology and cell technology company specializing in preclinical drug discovery solutions with focus on…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 33 contacts → | ||||
Indirect evidence “Blackthorn delivers AI agents for pharma and life sciences teams that need more than generic automation.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 32 contacts → | ||||
Indirect evidence “AlivaMab Biologics provides fully integrated solutions for biologics drug discovery through our continuously expanding platform of innovative capability modules.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 31 contacts → | ||||
Indirect evidence “Pharmatek Laboratories, Inc.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 28 contacts → | ||||
Indirect evidence “COI Pharma provides life science inventors with an environment where entrepreneurial and scientific risks are encouraged and rewarded.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 24 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 24 contacts → | ||||
Strong evidence “A Novel Biomarker Discovery Solution for Personalized Drug Development Denovo Biopharma is a private San Diego based biotech company providing a novel biomarker solution to…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 22 contacts → | ||||
Partial evidence “OZ Biosciences is a product development company that creates, develops and commercializes delivery systems of bioactive materials (DNA, siRNA, proteins, antibodies.), intended for…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 20 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 20 contacts → | ||||
Partial evidence “EnquBio is a wholly owned and operated drug development CRO out of San Diego, CA.” Source: RevenueBase Database · checked Sep 16, 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: biotech contract development organizations. 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 biotech contract development organizations.
- Partial evidence
- Its own public description names part of biotech contract development organizations, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name biotech contract development organizations. 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 127 biotech contract development organizations based in San Diego, United States
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Biotech contract development organizations based in San Diego, United States at a glance
As of Sep 16, 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 127 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 biotech contract development organizations, 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 “biotech contract development organizations”. 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 biotech contract development organizations), 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 biotech contract development organizations, 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, 1,383 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 16, 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.
Biotech contract development organizations by metro in the United States
- Biotech contract development organizations in San Diego127
- Biotech contract development organizations in Boston78
- Biotech contract development organizations in Cambridge47
- Biotech contract development organizations in San Francisco43
- Biotech contract development organizations in New York37
- Biotech contract development organizations in Philadelphia29
- Biotech contract development organizations in Raleigh27
- Biotech contract development organizations in Durham26
- Biotech contract development organizations in Houston26
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 biotech contract development organizations, 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 biotech contract development organizations are there based in San Diego, United States?
RevenueBase identified 127 biotech contract development organizations 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?
Abzena, headquartered in San Diego, tops this list with the largest team on record.
Which city has the most biotech contract development organizations?
San Diego leads with 127 headquartered companies, followed by Boston (78) and Cambridge (47).
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 1,383 verified decision-maker contacts tracked across these 127 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 16, 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.
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