Company lists · Data refreshed September 2026

Top 25 Oncolytic virus therapy companies worldwide

RevenueBase identified 296 oncolytic virus therapy companies worldwide as of September 2026 and tracks 6,397 professional contacts across them, including 3,096 with verified work emails. The United States is the largest market and San Diego the largest hub.

This list covers oncolytic virus therapy companies worldwide, 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 20, 2026. Country and city lists for oncolytic virus therapy companies follow the table.

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 20, 2026 86% judged on-target in blind review
296Companies
6,397Contacts tracked
3,096Verified emails
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The 25 largest oncolytic virus therapy companies worldwide

Ranked by team size
Top 25 of 296 oncolytic virus therapy companies worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to oncolytic virus 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 evidenceAlameda, CA, United StatesHQ checked Sep 20, 20261,001-5,0001,426 contacts →

Indirect evidence

“Every Exelixis employee is united in an ambitious cause: to transform science into new treatments that give cancer patients and their families hope for the future.”

Source: RevenueBase Database · checked Sep 20, 2026
2Partial evidenceWoburn, MA, United StatesHQ checked Sep 20, 2026201-500479 contacts →

Partial evidence

“Replimune's mission is to revolutionize cancer treatment with therapies designed to activate a powerful and durable full-body anti-tumor response.”

Source: RevenueBase Database · checked Sep 20, 2026
3Partial evidenceBengaluru, IndiaHQ checked Sep 20, 2026201-500406 contacts →

Partial evidence

“Founded in 2001, we are a clinical stage biotech company committed to bringing novel and effective therapeutics for the treatment of cancer.”

Source: RevenueBase Database · checked Sep 20, 2026
4Partial evidenceSouth San Francisco, CA, United StatesHQ checked Sep 20, 202651-200167 contacts →

Partial evidence

“Nkarta is a clinical-stage biotechnology company advancing the development of allogeneic natural killer (NK) cell therapies.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 20, 2026501-1,000149 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
6Partial evidenceAgoura Hills, CA, United StatesHQ checked Sep 20, 202651-200120 contacts →

Partial evidence

“A2 Biotherapeutics (A2 Bio) is a clinical-stage biotechnology company developing first-in-class logic-gated cell therapies to address the high unmet need in cancers and other…”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceWestminster, CO, United StatesHQ checked Sep 20, 202651-200113 contacts →

Indirect evidence

“TriSalus Life Sciences is an oncology company integrating novel delivery technology with immunotherapy to transform treatment for patients with liver and pancreatic tumors.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 20, 202651-200112 contacts →

Indirect evidence

“Our mission at Erasca is embedded in our name: To erase cancer.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceBoston, MA, United StatesHQ checked Sep 20, 202611-50100 contacts →

Indirect evidence

“enGene (Nasdaq: ENGN) is a clinical-stage biotechnology company mainstreaming non-viral genetic medicines that can be delivered locally to the site of disease-starting with…”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceWaltham, MA, United StatesHQ checked Sep 20, 202651-20089 contacts →

Indirect evidence

“Xilio is a Waltham, Massachusetts-based clinical-stage biopharmaceutical company focused on defeating cancer.”

Source: RevenueBase Database · checked Sep 20, 2026
11Partial evidenceLexington, MA, United StatesHQ checked Sep 20, 202611-5077 contacts →

Partial evidence

“Curis is a publicly-traded biotechnology company (NASDAQ: CRIS) focused on the development of first-in-class and innovative therapeutics or the treatment of cancer.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 202651-20075 contacts →

Indirect evidence

“At HOOKIPA, we envision a world in which cancers and infectious diseases can be chronically managed or eradicated.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceNeedham, MA, United StatesHQ checked Sep 20, 202651-20070 contacts →

Indirect evidence

“Candel ($CADL) is a clinical stage biopharmaceutical company focused on developing off-the-shelf multimodal biological immunotherapies that elicit an individualized, systemic…”

Source: RevenueBase Database · checked Sep 20, 2026
14Partial evidenceGermanyHQ checked Sep 20, 202651-20060 contacts →

Partial evidence

“Medigene AG (FSE: MDG1) is a leading immuno-oncology platform company dedicated to developing T-cell therapies to effectively eliminate cancer.”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceRochester, MN, IndiaHQ checked Sep 20, 202651-20059 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceBs, SwitzerlandHQ checked Sep 20, 202611-5053 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceOxford, United KingdomHQ checked Sep 20, 202651-20052 contacts →

Indirect evidence

“Scancell is a clinical stage immunotherapy biotech company developing treatments for significant unmet needs in cancer.”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceSan Marino, CA, United StatesHQ checked Sep 20, 202651-20048 contacts →

Indirect evidence

“GenVivo was founded on the idea that we can effectively treat cancer patients with the latest gene delivery technologies.”

Source: RevenueBase Database · checked Sep 20, 2026
19Indirect evidenceIrelandHQ checked Sep 20, 202611-5043 contacts →

Indirect evidence

“At Shorla Oncology we develop and commercialize innovative oncology drugs.”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceVienna, VA, United StatesHQ checked Sep 20, 202651-20042 contacts →

Indirect evidence

“CEL-SCI believes that boosting a patient’s immune system while it is still intact should provide the greatest possible impact on survival.”

Source: RevenueBase Database · checked Sep 20, 2026
21Strong evidenceRichmond, BC, CanadaHQ checked Sep 20, 202651-20041 contacts →

Strong evidence

“Virogin Biotech aims to be a global, best-in-class oncolytic virus company that creates impactful drugs for patients of the highest medical need.”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceUnited StatesHQ checked Sep 20, 202611-5039 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceCulver City, CA, United StatesHQ checked Sep 20, 202651-20039 contacts →

Indirect evidence

“NantKwest (NASDAQ: NK) is a pioneering, next generation, clinical-stage immunotherapy company focused on harnessing the unique power of our immune system using natural killer (NK)…”

Source: RevenueBase Database · checked Sep 20, 2026
24Partial evidencePittsburgh, PA, United StatesHQ checked Sep 20, 202611-5037 contacts →

Partial evidence

“KaliVir Immunotherapeutics was founded in 2019 to pioneer a unique and novel approach to cancer treatment that engages a virus’ natural ability to replicate in and kill cancer…”

Source: RevenueBase Database · checked Sep 20, 2026
25Partial evidenceNotting Hill, United KingdomHQ checked Sep 20, 202611-5037 contacts →

Partial evidence

“Cartherics is a biotechnology company focused on developing innovative cancer therapies.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 296 oncolytic virus therapy companies worldwide

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Oncolytic virus therapy companies worldwide at a glance

As of Sep 20, 2026
48.4%Verified-email coverage
21.6Average contacts per company
11-50Median size (employees)
5.1%Largest-city concentration · San Diego
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
147
11-50
101
51-200
35
201-500
6
501-1,000
2
1,001-5,000
4

Email recency is reported on each country list linked below.

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 oncolytic virus 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.
Coverage
Every country. Country and city lists for oncolytic virus therapy companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “oncolytic virus 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 oncolytic virus 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 oncolytic virus therapy companies, and records with no verified work email.
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, 3,096 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 20, 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.

Oncolytic virus therapy companies by location

1 lists · largest first

Every Oncolytic virus therapy companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 oncolytic virus 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 oncolytic virus therapy companies are there worldwide?

RevenueBase identified 296 oncolytic virus therapy companies worldwide 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?

Exelixis, headquartered in Alameda, tops this list with the largest team on record.

Which country has the most oncolytic virus therapy companies?

The United States leads with 139 companies. Every oncolytic virus therapy companies list by country and city is linked on this page.

Which city has the most oncolytic virus therapy companies?

San Diego leads with 15 headquartered companies, followed by New York (9) and Philadelphia (7).

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 3,096 verified decision-maker contacts tracked across these 296 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 20, 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.