Company lists · Data refreshed September 2026

Top 25 Vaccine developers based in the United States

RevenueBase identified 95 company matches for vaccine developers associated with the United States as of September 2026 and tracks 42,514 professional contacts across them, including 20,234 with verified work emails. Cambridge is the largest hub.

This list covers company matches for vaccine developers associated with the 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 22, 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 22, 2026 How this list was built
95Companies
42,514Contacts tracked
20,234Verified emails
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The 25 largest vaccine developers based in the United States

Ranked by team size
Top 25 of 95 company matches for vaccine developers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 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 matchRahway, NJ, United StatesHQ recorded Sep 22, 202610001+38,156 contacts →

Exact match

“At Merck, known as MSD outside of the United States and Canada, we are unified around our purpose: We use the power of leading-edge science to save and improve lives around the…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
2Exact matchNew York, NY, United StatesHQ recorded Sep 22, 2026201-500351 contacts →

Exact match

“Translating scientific discoveries into affordable, globally accessible public health solutions.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3Exact matchMonument, CO, United StatesHQ recorded Sep 22, 2026n/a333 contacts →

Exact match

“Phizer Pharmaceuticals Inc is an information technology and services company based out of 3020 Vandenberg Ave, Monument, Colorado, United States.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4Exact matchBethesda, MD, United StatesHQ recorded Sep 22, 2026201-500308 contacts →

Exact match

“HJFMRI is a nonprofit corporation that supports international programs advancing medical research and providing HIV prevention, care, and treatment funded by PEPFAR.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5Exact matchRedmond, WA, United StatesHQ recorded Sep 22, 202651-200195 contacts →

Exact match

“At Inventprise, developing innovative and widely available vaccines is in our DNA.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6Exact matchCambridge, MA, United StatesHQ recorded Sep 22, 202651-200191 contacts →

Exact match

“The Gates Medical Research Institute is a non-profit organization dedicated to the development and effective use of novel biomedical interventions addressing substantial global…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchBuffalo, NY, United StatesHQ recorded Sep 22, 202651-200134 contacts →

Exact match

“ZeptoMetrix brings together some of the world's leading scientists in the fight against infectious disease.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8Exact matchWashington, DC, United StatesHQ recorded Sep 22, 202651-200124 contacts →

Exact match

“At Sabin, we develop impactful vaccines, fuel actionable research, champion data-driven advocacy, and strengthen immunization leadership in communities around the globe.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9Exact matchSeattle, WA, United StatesHQ recorded Sep 22, 2026201-50067 contacts →

Exact match

“The Center for Infectious Disease Research (formerly Seattle Biomedical Research Institute) was founded in 1976 by Dr.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10Exact matchCambridge, MA, United StatesHQ recorded Sep 22, 202651-20045 contacts →

Exact match

“VBI Vaccines Inc.(“VBI”) is a biopharmaceutical company driven by immunology in the pursuit of powerful prevention and treatment of disease.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11Exact matchSeattle, WA, United StatesHQ recorded Sep 22, 202611-5039 contacts →

Exact match

“AAHI is a nonprofit biotech research institute dedicated to developing vaccine technologies that are affordable, effective, and accessible to everyone - regardless of geography or…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12Exact matchLenexa, KS, United StatesHQ recorded Sep 22, 202611-5036 contacts →

Exact match

“At Hennessy Research we are deeply committed to the research and development of animal health products, vaccines and diagnostic tests.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13Exact matchAlpharetta, GA, United StatesHQ recorded Sep 22, 202611-5032 contacts →

Exact match

“LivFul is an unconventional life science company that prioritizes health access and impact before profit maximization.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchSilver Spring, MD, United StatesHQ recorded Sep 22, 2026201-50024 contacts →

Exact match

“MHRP is at the forefront of the battle against HIV.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15Exact matchFarmingdale, NY, United StatesHQ recorded Sep 22, 202611-5020 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16Exact matchHonolulu, HI, United StatesHQ recorded Sep 22, 202611-5018 contacts →

Exact match

“Hawaii Biotech, Inc.(HBI) is a privately held biotechnology company focused on the research and development of vaccines for established and emerging infectious diseases.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17Exact matchSeattle, WA, United StatesHQ recorded Sep 22, 202611-5017 contacts →

Exact match

“Icosavax is focused on developing safe and effective vaccines against infectious diseases that address important unmet medical needs and reduce healthcare costs.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18Exact matchSt. Paul, MN, United StatesHQ recorded Sep 22, 202611-5013 contacts →

Exact match

“Immunize.org (formerly Immunization Action Coalition) established its website in 1994.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19Exact matchGaithersburg, MD, United StatesHQ recorded Sep 22, 202611-5011 contacts →

Exact match

“At RNAimmune, we use mRNA technology to help people live full and healthy lives.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20Exact matchBethesda, MD, United StatesHQ recorded Sep 22, 202611-5011 contacts →

Exact match

“Longhorn Vaccines and Diagnostics, LLC is a research company Headquartered out of 7272 Wisconsin Avenue Bethesda, MD 20814 United States.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchHouston, TX, United StatesHQ recorded Sep 22, 202611-5011 contacts →

Exact match

“The Immunization Partnership (TIP) works to significantly increase state immunization rates by being a source of leading research, industry expertise and specialist knowledge…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22Exact matchNewark, DE, United StatesHQ recorded Sep 22, 202611-5010 contacts →

Exact match

“Founded in early 2018, Uvax Bio, a spin-off vaccine company from Scripps Research, La Jolla, CA, employs patented single-component self-assembling protein nanoparticle (1c-SApNP)…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23Exact matchAmes, IA, United StatesHQ recorded Sep 22, 20261-109 contacts →

Exact match

“Genvax is a startup animal vaccine company located in Ames, Iowa.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24Exact matchSt. Paul, MN, United StatesHQ recorded Sep 22, 202611-509 contacts →

Exact match

“Syntiron LLC, is dedicated to developing innovative vaccines for humans.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25Exact matchFarmington, CT, United StatesHQ recorded Sep 22, 20261-108 contacts →

Exact match

“CaroGen Corporation is an emerging biopharmaceutical company with an entirely new vaccine platform technology developed at Yale University School of Medicine.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

Showing 25 of 95 vaccine developers based in the United States

See the full list, filter by size, metro and specialty, and access 20,234 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Vaccine developers based in the United States at a glance

As of Sep 22, 2026
47.6%Verified-email coverage
447.5Average contacts per company
11-50Median size (employees)
5.3%Largest-city concentration · Cambridge
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
26
11-50
34
51-200
18
201-500
13
1,001-5,000
1
5,001-10,000
2
10001+
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 95 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 the United States whose business descriptions match “vaccine developers” 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 20,234 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 22, 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 “vaccine developers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many vaccine developers are there based in the United States?

RevenueBase identified 95 company matches for vaccine developers associated with the 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?

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

Which city has the most vaccine developers?

Cambridge leads with 5 company records, followed by Seattle (5) and Boston (4).

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 20,234 professional contacts with verified work emails tracked across these 95 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 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 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.