Company lists · Data refreshed September 2026

Top 25 Adenoviral vector companies worldwide

RevenueBase identified 251 adenoviral vector companies worldwide as of September 2026 and tracks 7,075 professional contacts across them, including 3,433 with verified work emails. The United States is the largest market and Rockville the largest hub.

This list covers adenoviral vector 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 19, 2026. Country and city lists for adenoviral vector 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 19, 2026 86% judged on-target in blind review
251Companies
7,075Contacts tracked
3,433Verified emails
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The 25 largest adenoviral vector companies worldwide

Ranked by team size
Top 25 of 251 adenoviral vector companies worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to adenoviral vector 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 evidenceOxford, United KingdomHQ checked Sep 19, 2026501-1,000861 contacts →

Indirect evidence

“OXB (LSE: OXB) is a global quality and innovation-led contract development and manufacturing organisation (CDMO) in cell and gene therapy with a mission to enable its clients to…”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceColumbus, OH, United StatesHQ checked Sep 19, 2026201-500456 contacts →

Indirect evidence

“Forge, a member of Ajinomoto Bio-Pharma Services, is a gene therapy development engine, focused on enabling access to life changing gene therapies and helping bring them from idea…”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceLondon/new York, United KingdomHQ checked Sep 19, 202651-200398 contacts →

Indirect evidence

“MeiraGTx (Nasdaq: MGTX) is a vertically integrated, clinical-stage genetic medicine company with a broad pipeline of late-stage clinical programs supported by end-to-end…”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceRockville, MD, United StatesHQ checked Sep 19, 2026201-500393 contacts →

Indirect evidence

“REGENXBIO is a leading clinical-stage biotechnology company seeking to improve lives through the curative potential of gene therapy.”

Source: RevenueBase Database · checked Sep 19, 2026
5Partial evidenceSan Sebastián, SpainHQ checked Sep 19, 2026201-500348 contacts →

Partial evidence

“Viralgen Vector Core becomes the convergence point from experienced specialized organizations in biotechnology and life science fields, united with the aim of creating a CDMO in…”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceColumbus, OH, United StatesHQ checked Sep 19, 2026201-500281 contacts →

Indirect evidence

“Andelyn Biosciences is a gene therapy CDMO dedicated to Turning Hope Into Reality™.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceLexington, MA, United StatesHQ checked Sep 19, 2026201-500243 contacts →

Indirect evidence

“Founded in 2014 in Indianapolis, IN, Genezen is a best-in-class gene therapy CDMO with over a decade of experience supporting the cell and gene therapy manufacturing market…”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidencePennington, NJ, United StatesHQ checked Sep 19, 2026201-500181 contacts →

Indirect evidence

“ProBio is a global contract development and manufacturing (CDMO) organization, which aims to accelerate the manufacturing of life-changing drugs, discover novel therapeutic…”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceRoma, ItalyHQ checked Sep 19, 202651-200148 contacts →

Indirect evidence

“ReiThera Srl is a CDMO company dedicated to technology and process development and GMP manufacturing, providing support for the clinical translation of genetic vaccines and…”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceÉvry, FranceHQ checked Sep 19, 202651-200147 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceCambridge, United KingdomHQ checked Sep 19, 202651-200129 contacts →

Indirect evidence

“4basebio is enabling next generation cell and gene therapies and vaccines with it's technologies and solutions.”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceDonostia-san Sebastian, SpainHQ checked Sep 19, 202651-200117 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceRockville, MD, United StatesHQ checked Sep 19, 202651-200115 contacts →

Indirect evidence

“Ascend is gene to GMP partner with deep expertise in advanced therapy development and commercialization.”

Source: RevenueBase Database · checked Sep 19, 2026
14Partial evidenceChicago, IL, United StatesHQ checked Sep 19, 2026501-1,00096 contacts →

Partial evidence

“As a trusted partner for thousands of labs and biotech/pharma companies across the globe, VectorBuilder offers a full spectrum of gene delivery solutions covering virtually all…”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceWatertown, MA, United StatesHQ checked Sep 19, 202651-20083 contacts →

Indirect evidence

“Landmark Bio is now Artis BioSolutions.”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceCollege Station, TX, United StatesHQ checked Sep 19, 202651-20080 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
17Partial evidenceAmsterdam, NetherlandsHQ checked Sep 19, 202651-20077 contacts →

Partial evidence

VectorY combines the therapeutic potential of antibodies and gene therapy to develop long-lasting therapeutic solutions for large disease areas of high unmet medical need.”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceNivelles, BelgiumHQ checked Sep 19, 202651-20070 contacts →

Indirect evidence

“Univercells Technologies is a global provider of innovative biomanufacturing technologies to achieve cost-effective viral production from R&D to commercial scales.”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceLondon, United KingdomHQ checked Sep 19, 202611-5059 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceHouston, TX, United StatesHQ checked Sep 19, 2026201-50059 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceRochester, MN, IndiaHQ checked Sep 19, 202651-20059 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceBs, SwitzerlandHQ checked Sep 19, 202611-5053 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
23Partial evidenceWestmead, AustraliaHQ checked Sep 19, 202651-20049 contacts →

Partial evidence

“Viral Vector Manufacturing Facility (VVMF)- Unlocking the Future of Medicine VVMF is an Australian Contract Development and Manufacturing Organisation (CDMO) dedicated to…”

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceCambridge, MA, United StatesHQ checked Sep 19, 202651-20045 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
25Indirect evidenceCambridge, MA, United StatesHQ checked Sep 19, 2026201-50043 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 251 adenoviral vector companies worldwide

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Adenoviral vector companies worldwide at a glance

As of Sep 19, 2026
48.5%Verified-email coverage
28.2Average contacts per company
11-50Median size (employees)
2.8%Largest-city concentration · Rockville
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
95
11-50
93
51-200
37
201-500
20
501-1,000
2
1,001-5,000
2
10001+
1

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 adenoviral vector 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 adenoviral vector companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “adenoviral vector 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 adenoviral vector 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 adenoviral vector 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, 3,433 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 19, 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.

Adenoviral vector companies by location

1 lists · largest first

Every Adenoviral vector 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 adenoviral vector 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 adenoviral vector companies are there worldwide?

RevenueBase identified 251 adenoviral vector 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?

OXB, headquartered in Oxford, tops this list with the largest team on record.

Which country has the most adenoviral vector companies?

The United States leads with 89 companies. Every adenoviral vector companies list by country and city is linked on this page.

Which city has the most adenoviral vector companies?

Rockville leads with 7 headquartered companies, followed by Boston (6) and London (6).

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 3,433 verified decision-maker contacts tracked across these 251 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 19, 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.