Company lists · Data refreshed September 2026

Top 22 Targeted therapy companies based in South San Francisco, United States

RevenueBase identified 33 targeted therapy companies headquartered in South San Francisco, United States as of September 2026 and tracks 19,019 professional contacts across them, including 9,068 with verified work emails. San Diego is the largest hub.

This list covers targeted therapy companies headquartered in South San Francisco, 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 22, 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 22, 2026 86% judged on-target in blind review
33Companies
19,019Contacts tracked
9,068Verified emails
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The 22 largest targeted therapy companies based in South San Francisco, United States

Ranked by team size
Top 22 of 33 targeted therapy companies based in South San Francisco, United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to targeted therapy 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceSouth San Francisco, CA, United StatesHQ checked Sep 22, 202610001+17,217 contacts →

Indirect evidence

“About Genentech We're passionate about finding solutions for people facing the world's most difficult-to-treat conditions.”

Source: RevenueBase Database · checked Sep 22, 2026
2Partial evidenceSouth San Francisco, CA, United StatesHQ checked Sep 22, 2026201-500282 contacts →

Partial evidence

“Sutro Biopharma, Inc, is relentlessly focused on the discovery and development of precisely designed cancer therapeutics to transform what science can do for patients.”

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceSouth San Francisco, CA, United StatesHQ checked Sep 22, 202651-200224 contacts →

Indirect evidence

“IDEAYA is an oncology-focused precision medicine company.”

Source: RevenueBase Database · checked Sep 22, 2026
4Partial evidenceSouth San Francisco, CA, United StatesHQ checked Sep 22, 2026501-1,000223 contacts →

Partial evidence

“Formerly based in South San Francisco, California, Onyx Pharmaceuticals was engaged in the development and commercialization of innovative therapies for improving the lives of…”

Source: RevenueBase Database · checked Sep 22, 2026
5Strong evidenceSouth San Francisco, CA, United StatesHQ checked Sep 22, 202611-50125 contacts →

Strong evidence

“At Alumis, our goal is to significantly improve the lives of patients by replacing broad immunosuppression with targeted therapies.”

Source: RevenueBase Database · checked Sep 22, 2026
6Indirect evidenceSouth San Francisco, CA, United StatesHQ checked Sep 22, 202651-200123 contacts →

Indirect evidence

“ORIC Pharmaceuticals is a clinical stage biopharmaceutical company dedicated to improving patients’ lives by Overcoming Resistance In Cancer.”

Source: RevenueBase Database · checked Sep 22, 2026
7Partial evidenceSouth San Francisco, CA, United StatesHQ checked Sep 22, 202651-200100 contacts →

Partial evidence

“CytomX Therapeutics, Inc.”

Source: RevenueBase Database · checked Sep 22, 2026
8Partial evidenceSouth San Francisco, CA, United StatesHQ checked Sep 22, 202651-20074 contacts →

Partial evidence

“Abdera Therapeutics Inc.”

Source: RevenueBase Database · checked Sep 22, 2026
9Indirect evidenceSouth San Francisco, CA, United StatesHQ checked Sep 22, 202651-20068 contacts →

Indirect evidence

“In 2015, Pionyr Immunotherapeutics embarked on a journey to forge a new path in immuno-oncology for patients in need.”

Source: RevenueBase Database · checked Sep 22, 2026
10Partial evidenceSouth San Francisco, CA, United StatesHQ checked Sep 22, 202651-20058 contacts →

Partial evidence

“ALX Oncology (Nasdaq: ALXO) is a clinical-stage biotechnology company advancing therapies that boost the immune system to treat cancer and extend patients’ lives.”

Source: RevenueBase Database · checked Sep 22, 2026
11Partial evidenceSouth San Francisco, CA, United StatesHQ checked Sep 22, 202611-5032 contacts →

Partial evidence

“3T is an immunotherapy company developing next-generation, transformative therapies for the treatment of solid tumors and other immune-mediated diseases in broad patient…”

Source: RevenueBase Database · checked Sep 22, 2026
12Strong evidenceSouth San Francisco, CA, United StatesHQ checked Sep 22, 202651-20028 contacts →

Strong evidence

“Calithera Biosciences is a clinical-stage biopharmaceutical company pioneering the discovery and development of targeted therapies that disrupt cellular metabolic pathways to…”

Source: RevenueBase Database · checked Sep 22, 2026
13Partial evidenceSouth San Francisco, CA, United StatesHQ checked Sep 22, 202611-5027 contacts →

Partial evidence

“Link Cell Therapies was launched by Stanford founders Robbie Majzner and Crystal Mackall in partnership with investors Samsara BioCapital and Sheatree Capital.”

Source: RevenueBase Database · checked Sep 22, 2026
14Partial evidenceSouth San Francisco, CA, United StatesHQ checked Sep 22, 202611-5022 contacts →

Partial evidence

“Tizona Therapeutics, Inc, is an immunology company harnessing the power of the immune system to develop treatments for cancer and autoimmune diseases.”

Source: RevenueBase Database · checked Sep 22, 2026
15Partial evidenceSouth San Francisco, CA, United StatesHQ checked Sep 22, 202611-5020 contacts →

Partial evidence

“At PACT Pharma, our vision is to create potentially curative T cell therapies for solid cancers that are tailored for each and every patient.”

Source: RevenueBase Database · checked Sep 22, 2026
16Partial evidenceSouth San Francisco, CA, United StatesHQ checked Sep 22, 20261-1018 contacts →

Partial evidence

“At Apertor we have developed a new class of therapeutics to address one of the toughest challenges in drug discovery, selective disruption of disease-causing protein-protein…”

Source: RevenueBase Database · checked Sep 22, 2026
17Partial evidenceSouth San Francisco, CA, United StatesHQ checked Sep 22, 202611-5015 contacts →

Partial evidence

“At CERo, we are expanding the armamentarium of engineered cell therapies to create a whole new class of innovative medicines for oncology.”

Source: RevenueBase Database · checked Sep 22, 2026
18Indirect evidenceSouth San Francisco, CA, United StatesHQ checked Sep 22, 202611-5014 contacts →

Indirect evidence

“Leapfrog Bio is a clinical-stage precision oncology company accelerating cancer drug development by identifying clinical-stage molecules that can be retargeted as directed…”

Source: RevenueBase Database · checked Sep 22, 2026
19Partial evidenceSouth San Francisco, CA, United StatesHQ checked Sep 22, 20261-1013 contacts →

Partial evidence

“Olio Labs develops combination therapies that deliver better outcomes with fewer side effects.”

Source: RevenueBase Database · checked Sep 22, 2026
20Indirect evidenceSouth San Francisco, CA, United StatesHQ checked Sep 22, 20261-109 contacts →

Indirect evidence

“Synlico is a patient-native causal AI biotech building a generative causal discovery and inference platform SynCausal(TM) that learns directed gene causal graphs from primary…”

Source: RevenueBase Database · checked Sep 22, 2026
21Partial evidenceSouth San Francisco, CA, United StatesHQ checked Sep 22, 20261-107 contacts →

Partial evidence

“At Tegmine we target glycoproteins, which are a hallmark of numerous solid cancers and drive aggressive disease.”

Source: RevenueBase Database · checked Sep 22, 2026
22Indirect evidenceSouth San Francisco, CA, United StatesHQ checked Sep 22, 20261-105 contacts →

Indirect evidence

“PrimeVax Immuno-Oncology, Inc.”

Source: RevenueBase Database · checked Sep 22, 2026

Showing 22 of 33 targeted therapy companies based in South San Francisco, United States

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Targeted therapy companies based in South San Francisco, United States at a glance

As of Sep 22, 2026
47.7%Verified-email coverage
576.3Average contacts per company
11-50Median size (employees)
248.5%Largest-city concentration · San Diego
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
7
11-50
12
51-200
11
201-500
1
501-1,000
1
10001+
1

Email recency for this list is measured across the whole United States list rather than for South San Francisco, so it is reported there. Company counts and contact totals on this page are exact for South San Francisco, over 33 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 targeted therapy 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 South San Francisco, United States whose own description of what they do matches “targeted therapy 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 targeted therapy 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 targeted therapy companies, and records with no verified work email. Companies headquartered outside South San Francisco 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, 9,068 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 22, 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.

Targeted therapy companies by metro in the United States

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 targeted therapy 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 targeted therapy companies are there based in South San Francisco, United States?

RevenueBase identified 33 targeted therapy companies headquartered in South San Francisco, 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?

Genentech, headquartered in South San Francisco, tops this list with the largest team on record.

Which city has the most targeted therapy companies?

San Diego leads with 82 headquartered companies, followed by Cambridge (63) and New York (44).

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 9,068 verified decision-maker contacts tracked across these 33 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 22, 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.