Company lists · Data refreshed September 2026
Top 25 Immunotherapy venture capital companies based in San Diego, United States
RevenueBase identified 49 immunotherapy venture capital companies headquartered in San Diego, United States as of September 2026 and tracks 1,313 professional contacts across them, including 762 with verified work emails. Cambridge is the largest hub.
This list covers immunotherapy venture capital 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 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.
The 25 largest immunotherapy venture capital companies based in San Diego, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 273 | ||||
Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 2 | 113 | ||||
“Our mission at Erasca is embedded in our name: To erase cancer.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 3 | 112 | ||||
“Janux is a clinical-stage company developing unique immunotherapies that have the potential to generate tumor-specific immune responses to attack and kill tumors without…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 4 | Rakuten MedicalIndirect evidence | 112 | |||
“Rakuten Medical, Inc.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 5 | Kumquat Biosciences INCIndirect evidence | 72 | |||
“Kumquat Biosciences’ vision is to develop innovative therapies to bring about sustainable and life-changing benefits to cancer patients.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 6 | 67 | ||||
“Ambrx (Nasdaq: AMAM) is a clinical stage biopharmaceutical company using an expanded genetic code technology platform to discover and develop next generation antibody drug…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 7 | 45 | ||||
“BioAtla is a protein therapeutic company that uses discovery and evolution to develop safer and more potent drugs for the treatment of cancer.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 8 | Turnstone BiologicsIndirect evidence | 41 | |||
“Turnstone Biologics is a clinical-stage biotechnology company developing a differentiated approach to treat and cure patients with solid tumors by pioneering selected…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 9 | Tr1xIndirect evidence | 39 | |||
“Tr1X is a private, clinical-stage biotechnology company focused on developing a novel class of regulatory T cell-based products to cure autoimmune and inflammatory diseases.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 10 | 38 | ||||
“Clinical stage biotechnology company dedicated to advancing the treatment of a range of immunological conditions” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 11 | 32 | ||||
“Equillium is a clinical-stage biotechnology company leveraging deep understanding of immunobiology to pioneer new products with a mission to dramatically improve the lives of…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 12 | 31 | ||||
“Curebound is a San Diego-based 501c3 philanthropic organization that raises and invests strategic funding into innovative cancer research projects aimed at accelerating new…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 13 | 22 | ||||
“Antharis Therapeutics is a multinational biopharmaceutical company developing new treatments for cancer and inflammatory diseases.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 14 | 21 | ||||
“Cellics has developed a novel, proprietary, first-in-class therapeutic platform to address the complex biology of significant unmet medical needs in Inflammation and Immunology.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 15 | Nielsen Biosciences, INCIndirect evidence | 21 | |||
Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 16 | Neuvogen, INCIndirect evidence | 20 | |||
“NEUVOGEN is an immunoncology company applying a systems approach to develop therapeutic whole cell cancer vaccines to transform how cancer is treated.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 17 | 19 | ||||
“Immunicom is developing a non-drug-based cancer therapy with the potential to reduce treatment side effects, enhance therapy response rates and improve cancer patients’ quality of…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 18 | OncosecIndirect evidence | 19 | |||
“OncoSec is a biotechnology company pioneering new technologies to stimulate the body’s immune system to target and attack cancer.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 19 | 15 | ||||
“Eitr Biologics, Inc,(Eitr) is a San Diego, CA based biotechnology company focused on the pursuit of novel next generation immunotherapeutics for the treatment of infectious…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 20 | Revelation Biosciences INCIndirect evidence | 14 | |||
“We are a clinical-stage biopharmaceutical company focused on harnessing the power of trained immunity for the prevention and treatment of disease” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 21 | 14 | ||||
“Avalon BioVentures is a biotech venture capital firm that builds on Avalon’s 40-year success in pursuing disruptive ideas to improve life.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 22 | Rybodyn INCIndirect evidence | 12 | |||
“RyboDyn, Inc.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 23 | Reignite Therapeutics, INCIndirect evidence | 8 | |||
Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 24 | Trio Pharmaceuticals, INCIndirect evidence | 8 | |||
“We are a cancer therapeutics company with a mission to improve efficacy, reduce toxicity and increase treatment affordability of cancer drugs.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 25 | 8 | ||||
“The Emerging Markets Cancer Ignition Fund (“EMCIFund”) is an oncology focused venture capital fund that leverages a pre-validated pathway between established and emerging markets…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 49 immunotherapy venture capital companies based in San Diego, United States
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Immunotherapy venture capital companies based in San Diego, United States at a glance
As of Sep 3, 2026Companies by employee count
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 49 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 immunotherapy venture capital companies, 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 “immunotherapy venture capital companies”. 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 immunotherapy venture capital 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 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, 762 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 3, 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.
Immunotherapy venture capital companies by metro in the United States
- Immunotherapy venture capital companies in Cambridge50
- Immunotherapy venture capital companies in San Diego49
- Immunotherapy venture capital companies in Boston39
- Immunotherapy venture capital companies in New York29
- Immunotherapy venture capital companies in South San Francisco28
- Immunotherapy venture capital companies in San Francisco26
Frequently asked
How many immunotherapy venture capital companies are there based in San Diego, United States?
RevenueBase identified 49 immunotherapy venture capital 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?
Vividion Therapeutics, INC, headquartered in San Diego, tops this list with the largest team on record.
Which city has the most immunotherapy venture capital companies?
Cambridge leads with 50 headquartered companies, followed by San Diego (49) and Boston (39).
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 762 verified decision-maker contacts tracked across these 49 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 3, 2026.
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Immunotherapy venture capital companies by geography
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- Immunotherapy venture capital companies based in Cambridge, United States
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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.
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