Company lists · Data refreshed September 2026

Top 25 Seed stage life sciences investors based in Boston, United States

RevenueBase identified 57 company matches for seed stage life sciences investors associated with Boston, United States as of September 2026 and tracks 880 professional contacts across them, including 447 with verified work emails. Across the United States, New York is the largest hub for this category (103 companies); Boston has 57.

This list covers company matches for seed stage life sciences investors associated with Boston, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 17, 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 RevenueBase SmartSearch · Exact Recorded Sep 17, 2026 How this list was built
57Companies
880Contacts tracked
447Verified emails
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The 25 largest seed stage life sciences investors based in Boston, United States

Ranked by team size
Top 25 of 57 company matches for seed stage life sciences investors based in Boston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchBoston, MA, United StatesHQ recorded Sep 17, 2026201-500251 contacts →

Exact match

“Founded in 2004, RA Capital Management is an active, multi-stage investment manager dedicated to evidence-based, science-led investing in public and private healthcare, life…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2Exact matchBoston, MA, United StatesHQ recorded Sep 17, 202651-200113 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3Exact matchBoston, MA, United StatesHQ recorded Sep 17, 202611-5095 contacts →

Exact match

“MPM BioImpact is a world-leading biotechnology investment firm with nearly three decades of experience creating and investing in companies that seek to translate scientific…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4Exact matchBoston, United StatesHQ recorded Sep 17, 202611-5060 contacts →

Exact match

“At Optum Ventures, we look for exceptional teams with data-driven technologies and services that are poised to deeply disrupt the status quo.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5Exact matchBoston, MA, United StatesHQ recorded Sep 17, 202611-5026 contacts →

Exact match

“Omega Funds is a leading international investment firm that creates and invests in life sciences companies that target the world’s most urgent medical needs.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6Exact matchBoston, MA, United StatesHQ recorded Sep 17, 20261-1023 contacts →

Exact match

“CHV (Catalyst Health Ventures) invests in transformative MedTech companies that are addressing global unmet healthcare needs and have the potential to become the new standard of…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7Exact matchBoston, MA, United StatesHQ recorded Sep 17, 202611-5022 contacts →

Exact match

“K2 HealthVentures (K2HV) is an alternative investment firm that provides flexible, long-term financing solutions to innovative private and public companies in the life sciences…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8Exact matchBoston, MA, United StatesHQ recorded Sep 17, 202611-5017 contacts →

Exact match

“Shields Health Innovations is focused on stage agnostic healthcare services investment partnership with unwavering focus on doing right by the patient and building better…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9Exact matchBoston, MA, United StatesHQ recorded Sep 17, 20261-1015 contacts →

Exact match

“Since 1993, Saturn has been an opportunistic investor that takes a hands-on approach to investing in proprietary seed and early stage venture capital opportunities located…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10Exact matchBoston, MA, United StatesHQ recorded Sep 17, 202611-5013 contacts →

Exact match

“Cormorant Asset Management LP is an Investment Manager based out of 200 Clarendon Street, Boston, Massachusetts, United States.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11Exact matchBoston, MA, United StatesHQ recorded Sep 17, 202611-5013 contacts →

Exact match

“LiquidMetal Ventures is a Boston based, early-stage focused venture capital fund focusing on Energy & Sustainability, Biotech & Healthcare and AI & Robotics, with a mission…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12Exact matchBoston, MA, United StatesHQ recorded Sep 17, 20261-1012 contacts →

Exact match

“Excel Venture Management builds companies that apply transformative life science technologies to solve problems in healthcare and beyond.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13Exact matchBoston, United StatesHQ recorded Sep 17, 202611-5011 contacts →

Exact match

“Delos Capital is a life sciences investment firm.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14Exact matchBoston, MA, United StatesHQ recorded Sep 17, 20261-109 contacts →

Exact match

“Innospark Ventures is an early-stage venture capital firm that invests in AI-native companies solving previously intractable problems across healthcare, life sciences, and…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15Exact matchBoston, MA, United StatesHQ recorded Sep 17, 20261-109 contacts →

Exact match

“Xontogeny (zon-TOJ-uh-nee) is a biotech aggregator with a differentiated business model to support the accelerated development of life science technologies in the pursuit of…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16Exact matchBoston, MA, United StatesHQ recorded Sep 17, 20261-109 contacts →

Exact match

“Boston Harbor Angels, Celebrating 20 Years of Angel Investing, like a lighthouse, helps entrepreneurs navigate and grow their start-up businesses through the treacherous waters of…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17Exact matchBoston, MA, United StatesHQ recorded Sep 17, 20261-107 contacts →

Exact match

“ADVANCING THE GROWTH OF MEDTECH: We are partner with the innovators who are changing the practice of medicine.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18Exact matchBoston, United StatesHQ recorded Sep 17, 20261-107 contacts →

Exact match

“quadraScope invests in early-stage healthcare companies developing pharmaceuticals, diagnostics, software, equipment and devices enabling biological age reversal, disease…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19Exact matchBoston, MA, United StatesHQ recorded Sep 17, 20261-107 contacts →

Exact match

“Iaso Ventures is a venture capital firm located in Boston.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20Exact matchBoston, MA, United StatesHQ recorded Sep 17, 20261-106 contacts →

Exact match

“In 2018, the Leducq Trust launched Longview Ventures to make investments in select portfolio companies of Broadview Ventures, a mission-driven investment organization focused on…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21Exact matchBoston, MA, United StatesHQ recorded Sep 17, 20261-106 contacts →

Exact match

“Multi-stage venture capital firm building and investing in disruptive biotechnology companies.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22Exact matchBoston, MA, United StatesHQ recorded Sep 17, 202651-2005 contacts →

Exact match

“A novel and effective investment vehicle aimed at bridging the infamous biotech startup “valley of death” and generating high returns, while furthering the development of medical…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23Exact matchBoston, MA, United StatesHQ recorded Sep 17, 20261-105 contacts →

Exact match

“Solasta Ventures, Inc.(formerly known in the U.S.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24Exact matchBoston, MA, United StatesHQ recorded Sep 17, 20261-105 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25Exact matchBoston, MA, United StatesHQ recorded Sep 17, 20261-103 contacts →

Exact match

“CR Ventures is a global life-science investor with a focus on companies entering Phase I or II clinical trials.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

Showing 25 of 57 seed stage life sciences investors based in Boston, United States

See the full list, filter by size, metro and specialty, and access 447 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Seed stage life sciences investors based in Boston, United States at a glance

As of Sep 17, 2026
50.8%Verified-email coverage
15.4Average contacts per company
1-10Median size (employees)
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
41
11-50
12
51-200
2
201-500
2

Email recency for this list is measured across the whole United States list rather than for Boston, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 57 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with Boston, United States whose business descriptions match “seed stage life sciences investors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 447 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “seed stage life sciences investors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many seed stage life sciences investors are there based in Boston, United States?

RevenueBase identified 57 company matches for seed stage life sciences investors associated with Boston, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

RA Capital Management tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most seed stage life sciences investors?

New York leads the United States with 103 company records, followed by San Francisco (61) and Boston (57).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 447 professional contacts with verified work emails tracked across these 57 companies; direct dials are available where recorded.

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 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.