Company lists · Data refreshed September 2026

Top 25 Pharmaceutical development companies based in San Diego, United States

Name: Pharmaceutical development companies based in San Diego, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 62 companies tracked

RevenueBase identified 62 pharmaceutical development companies headquartered in San Diego, United States as of September 2026 and tracks 2,385 professional contacts across them, including 865 with verified work emails. San Diego is the largest hub.

This list covers pharmaceutical development companies 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 17, 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 17, 2026 86% judged on-target in blind review

62Companies

2,385Contacts tracked

865Verified emails

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The 25 largest pharmaceutical development companies based in San Diego, United States

Ranked by team size

Top 25 of 62 pharmaceutical development companies based in San Diego, United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to pharmaceutical development companies: 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	Halozyme, INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	201-500	524 contacts →
	Indirect evidence “Halozyme is a biopharmaceutical company bringing disruptive solutions to significantly improve patient experiences and outcomes for emerging and established therapies.” Source: RevenueBase Database · checked Sep 17, 2026
2	Amylin Pharmaceuticals	Partial evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	509 contacts →
	Partial evidence “Amylin Pharmaceuticals, a wholly owned subsidiary of Bristol- Myers Squibb, is an exceptional company of extraordinary people.” Source: RevenueBase Database · checked Sep 17, 2026
3	scientist.com	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	51-200	126 contacts →
	Indirect evidence “Scientist.com is the world’s largest and first platform built for the intricacies of scientific outsourcing.” Source: RevenueBase Database · checked Sep 17, 2026
4	Arena Pharmaceuticals, INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	201-500	117 contacts →
	Indirect evidence “Arena is now part of Pfizer.” Source: RevenueBase Database · checked Sep 17, 2026
5	Sequoia Biotech Consulting	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	201-500	101 contacts →
	Indirect evidence “In September 2024, Sequoia Biotech Consulting merged with Syner-G and officially rebranded as Syner-G in 2025.” Source: RevenueBase Database · checked Sep 17, 2026
6	Huyabio International	Partial evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	51-200	93 contacts →
	Partial evidence “HUYABIO is the leader in accelerating the global development of novel biopharmaceutical product opportunities originating in China enabling faster, more cost-effective and…” Source: RevenueBase Database · checked Sep 17, 2026
7	Althea, CMO	Partial evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	201-500	75 contacts →
	Partial 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 17, 2026
8	Bora Biologics	Partial evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	201-500	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 17, 2026
9	Tanvex Biopharma Usa, INC	Strong evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	51-200	68 contacts →
	Strong 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 17, 2026
10	Chemdiv, INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	501-1,000	57 contacts →
	Indirect evidence “ChemDiv, a fully Integrated Target-to-Market Contract Research Organization (CRO) headquartered in San Diego, CA USA.” Source: RevenueBase Database · checked Sep 17, 2026
11	Primrose BIO	Partial evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	51-200	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 17, 2026
12	Sanford Laboratories For Innovative Medicines	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	11-50	31 contacts →
	Indirect evidence “Sanford Labs is an independent, not-for-profit biomedical research organization with a mission to discover and deliver the next generation of molecular medicines” Source: RevenueBase Database · checked Sep 17, 2026
13	Pharmatek	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	201-500	31 contacts →
	Indirect evidence “Pharmatek Laboratories, Inc.” Source: RevenueBase Database · checked Sep 17, 2026
14	Codera, LLC	Partial evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	51-200	30 contacts →
	Partial evidence “Codera is a Tang Capital company that provides in-house end-to-end drug development capabilities for its portfolio companies.” Source: RevenueBase Database · checked Sep 17, 2026
15	OEP Innovations INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	51-200	21 contacts →
	Indirect evidence “Orient Pharma (OP), focusing on R&D and manufacturing and established on Feb 1, 2008, is the subsidiary of Orient Europharma(OEP).” Source: RevenueBase Database · checked Sep 17, 2026
16	Tracon Pharmaceuticals	Partial evidence	San Diego, United StatesHQ checked Sep 17, 2026	11-50	17 contacts →
	Partial evidence “TRACON is a biopharmaceutical company focused on the development and commercialization of novel targeted therapeutics for cancer, and utilizes its cost efficient, contract…” Source: RevenueBase Database · checked Sep 17, 2026
17	Trotana, INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	11-50	15 contacts →
	Indirect evidence “Trotana is developing novel oral anti-inflammatory medicines” Source: RevenueBase Database · checked Sep 17, 2026
18	Somatek INC	Partial evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	11-50	13 contacts →
	Partial evidence “At Somatek, we provide consulting for the development of manufacturing processes for next generation biopharmaceuticals.” Source: RevenueBase Database · checked Sep 17, 2026
19	OBI Pharma USA	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	11-50	13 contacts →
	Indirect evidence “OBI Pharma USA, Inc.(OBI USA) is the wholly-owned subsidiary of OBI Pharma, Inc.(4174.TWO) OBI USA’s mission is to lead the US and European clinical trials of OBI’s novel…” Source: RevenueBase Database · checked Sep 17, 2026
20	Beloteca, INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	1-10	10 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
21	Pacific Research Network	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	11-50	10 contacts →
	Indirect 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 17, 2026
22	Biosapien	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	1-10	10 contacts →
	Indirect evidence “Biosapien is a late-stage pre clinical company focused on novel drug delivery platforms.” Source: RevenueBase Database · checked Sep 17, 2026
23	Create Biosciences	Partial evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	1-10	8 contacts →
	Partial evidence “Provider of development and contract manufacturing services across the life sciences and biotech industries.” Source: RevenueBase Database · checked Sep 17, 2026
24	Tega Therapeutics, INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	1-10	7 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
25	Mabplex Usa, INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	11-50	6 contacts →
	Indirect evidence “MABPLEX USA, INC offers our partners contract services from DNA to finished drug product.” Source: RevenueBase Database · checked Sep 17, 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: pharmaceutical development companies. 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 pharmaceutical development companies.
Partial evidence: Its own public description names part of pharmaceutical development companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name pharmaceutical development companies. 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 62 pharmaceutical development companies based in San Diego, United States

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Pharmaceutical development companies based in San Diego, United States at a glance

As of Sep 17, 2026

36.3%Verified-email coverage

38.5Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · San Diego

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 62 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 pharmaceutical development companies, 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 “pharmaceutical development companies”. 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 pharmaceutical development companies), 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 pharmaceutical development companies, 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, 865 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 17, 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.

Pharmaceutical development companies by metro in the United States

Pharmaceutical development companies in San Diego62
Pharmaceutical development companies in New York45
Pharmaceutical development companies in Boston38
Pharmaceutical development companies in Cambridge34
Pharmaceutical development companies in Miami32
Pharmaceutical development companies in Princeton28
Pharmaceutical development companies in Wilmington25

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 pharmaceutical development companies, 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 pharmaceutical development companies are there based in San Diego, United States?

RevenueBase identified 62 pharmaceutical development companies 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?

Halozyme, INC, headquartered in San Diego, tops this list with the largest team on record.

Which city has the most pharmaceutical development companies?

San Diego leads with 62 headquartered companies, followed by New York (45) and Boston (38).

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 865 verified decision-maker contacts tracked across these 62 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 17, 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.