Company lists · Data refreshed September 2026

Top 21 Immunotherapy venture capital companies based in Boston, United States

Name: Immunotherapy venture capital companies based in Boston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 39 companies tracked

RevenueBase identified 39 immunotherapy venture capital companies headquartered in Boston, United States as of September 2026 and tracks 732 professional contacts across them, including 369 with verified work emails. Cambridge is the largest hub.

This list covers immunotherapy venture capital companies headquartered in Boston, 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.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

39Companies

732Contacts tracked

369Verified emails

Unlock all 39 companies Free signup · no credit card · 500 free credits

The 21 largest immunotherapy venture capital companies based in Boston, United States

Ranked by team size

Top 21 of 39 immunotherapy venture capital companies based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names immunotherapy venture capital companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Third Rock VenturesIndirect evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	51-200	110
	“We discover, launch and build great companies based on bold ideas that meet at the intersection of science, strategy, business and medicine – where transformational science meets…” Source: company website · checked Sep 3, 2026
2	Bicara TherapeuticsIndirect evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	51-200	96
	“Bicara is a clinical-stage biopharmaceutical company committed to bringing transformative bifunctional therapies to patients with solid tumors.” Source: company website · checked Sep 3, 2026
3	Pyxis OncologyIndirect evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	51-200	65
	“Pyxis Oncology is transforming the lives of patients with cancer by advancing our differentiated portfolio of biologics that specifically target tumor cells and overcome immune…” Source: company website · checked Sep 3, 2026
4	Compass Therapeutics INCIndirect evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	11-50	50
	“Compass Therapeutics, Inc.” Source: company website · checked Sep 3, 2026
5	Elicio TherapeuticsPartial evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	11-50	39
	“Elicio Therapeutics, Inc.(Nasdaq: ELTX) is a clinical-stage biotechnology company advancing novel immunotherapies for the treatment of high-prevalence cancers, including…” Source: company website · checked Sep 3, 2026
6	Hillstar BIOIndirect evidence	Boston, United StatesHQ checked Sep 3, 2026	11-50	19
	“Hillstar Bio is a precision immunology company based in Boston's Seaport neighborhood advancing a portfolio of programs against autoimmune diseases with unmet or underserved…” Source: company website · checked Sep 3, 2026
7	Cure VenturesStrong evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	1-10	14
	“Cure Ventures is a venture capital firm focusing on company formation around groundbreaking curative technologies.” Source: company website · checked Sep 3, 2026
8	Excel Venture Management, LLCPartial evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	1-10	12
	“Excel Venture Management builds companies that apply transformative life science technologies to solve problems in healthcare and beyond.” Source: company website · checked Sep 3, 2026
9	Clade TherapeuticsIndirect evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	51-200	11
	“Clade Therapeutics is a well-funded cell therapy company developing novel cell-based medicines for the treatment of cancer and other devastating diseases.” Source: company website · checked Sep 3, 2026
10	IFM TherapeuticsIndirect evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	11-50	9
	“At IFM Therapeutics, we work to improve the lives of patients with inflammatory disorders and cancer by developing transformative medicines that precisely target the innate immune…” Source: company website · checked Sep 3, 2026
11	Interon Laboratories, INCIndirect evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	1-10	8
	“Innovations in Neuro-Immunology” Source: company website · checked Sep 3, 2026
12	Catamaran BIOIndirect evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	11-50	8
	“At Catamaran, our mission is to harness the power of our proprietary TAILWIND™ Platform to develop safe and effective, off-the-shelf, allogeneic immune cell therapies for the…” Source: company website · checked Sep 3, 2026
13	Newpath PartnersStrong evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	1-10	6
	“Multi-stage venture capital firm building and investing in disruptive biotechnology companies.” Source: company website · checked Sep 3, 2026
14	ImmunoviveIndirect evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	1-10	6
	“Immunovive is a high-quality in vivo fee-for-service antibody discovery company with the mission to meld knowledge, innovation, and expertise in delivering the next generation of…” Source: company website · checked Sep 3, 2026
15	Solasta VenturesPartial evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	1-10	5
	“Solasta Ventures, Inc.(formerly known in the U.S.” Source: company website · checked Sep 3, 2026
16	Alloplex Biotherapeutics INCIndirect evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	1-10	5
	“Alloplex Biotherapeutics is dedicated to exploring the higher order combinatorial space of immunomodulators to develop an effective anti-tumor vaccine.” Source: company website · checked Sep 3, 2026
17	FlaskworksIndirect evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	1-10	5
	“Flaskworks LLC is a fully owned subsidiary of Northwest Biotherapeutics, Inc, a clinical stage biotechnology company focused on the development of personalized cancer vaccines.” Source: company website · checked Sep 3, 2026
18	Kiragen BIOPartial evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	1-10	4
	“KiraGen Bio is engineering the next generation of cancer immunotherapies to overcome the barriers that have limited CAR-T success in solid tumors.” Source: company website · checked Sep 3, 2026
19	Paratope BIO INCIndirect evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	1-10	3
	“Paratope Biosciences is an Immuno-oncology company focused on creating less toxic cancer treatments.” Source: company website · checked Sep 3, 2026
20	Oncopep, INCIndirect evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	11-50	3
	“Through targeting multiple tumor-associated antigens with an investigational multi-peptide vaccine and a multi-tumor antigen adoptive (MTAA) T cell therapy, OncoPep’s T cell…” Source: company website · checked Sep 3, 2026
21	FeromicsPartial evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	1-10	2
	“Feromics is a pioneering biotechnology company at the forefront of transforming immunotherapy and personalized medicine.” Source: company website · checked Sep 3, 2026

Showing 21 of 39 immunotherapy venture capital companies based in Boston, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 369 reachable decision-makers.

Free signup · no credit card

See all 39 companies

Immunotherapy venture capital companies based in Boston, United States at a glance

As of Sep 3, 2026

1-10Median size (employees)

CambridgeLargest hub · 50 HQs

Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

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 Boston, over 39 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 Boston, 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 Boston 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, 369 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 Boston, United States?

RevenueBase identified 39 immunotherapy venture capital companies headquartered in Boston, 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?

Third Rock Ventures, headquartered in Boston, 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 369 verified decision-maker contacts tracked across these 39 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.

Ready to reach these companies? Verified emails and direct dials for all 39 immunotherapy venture capital companies based in Boston, United States. Start with a free account, no credit card.

Get the full list

Related lists

Immunotherapy venture capital companies by geography

Browse the directory

Browse: Companies home · Immunotherapy venture capital companies in United States · All United States lists · All Immunotherapy venture capital companies lists · New lists

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.