Company lists · Data refreshed September 2026

Top 19 Lentiviral vector manufacturers based in the United States

RevenueBase identified 36 lentiviral vector manufacturers headquartered in the United States as of September 2026 and tracks 785 professional contacts across them, including 404 with verified work emails. Rockville is the largest hub.

This list covers lentiviral vector manufacturers headquartered in the 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026.

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 17, 2026 86% judged on-target in blind review
36Companies
785Contacts tracked
404Verified emails
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The 19 largest lentiviral vector manufacturers based in the United States

Ranked by team size
Top 19 of 36 lentiviral vector manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to lentiviral vector manufacturers: 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 evidenceRockville, MD, United StatesHQ checked Sep 17, 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 17, 2026
2Partial evidenceChicago, IL, United StatesHQ checked Sep 17, 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 17, 2026
3Indirect evidenceCollege Station, TX, United StatesHQ checked Sep 17, 202651-20080 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
4Indirect evidenceHouston, TX, United StatesHQ checked Sep 17, 2026201-50059 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
5Indirect evidenceCambridge, MA, United StatesHQ checked Sep 17, 2026201-50043 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
6Indirect evidenceRockville, MD, United StatesHQ checked Sep 17, 202611-5033 contacts →

Indirect evidence

“American Gene Technologies® International Inc.(AGT™) is a private biotechnology company pursuing cures and treatments for infectious diseases, cancers, and monogenic disorders.”

Source: RevenueBase Database · checked Sep 17, 2026
7Indirect evidencePhiladelphia, PA, United StatesHQ checked Sep 17, 202611-5031 contacts →

Indirect evidence

“Biotherapeutics manufacturing partner enabling scalable production while maintaining product quality.”

Source: RevenueBase Database · checked Sep 17, 2026
8Strong evidenceGaithersburg, MD, United StatesHQ checked Sep 17, 202611-5029 contacts →

Strong evidence

“Born from purpose and for patient access, Vector BioMed is a Public Benefit Corporation engineering the next frontier of lentivirus-based cell and gene therapy.”

Source: RevenueBase Database · checked Sep 17, 2026
9Indirect evidenceHouston, TX, United StatesHQ checked Sep 17, 202611-5017 contacts →

Indirect evidence

“Virovek specializes in customized and large-scale AAV (adeno-associated virus) production through our innovative and patented BAC-to-AAV and toxin-based cell ablation technologies.”

Source: RevenueBase Database · checked Sep 17, 2026
10Indirect evidenceNew York, NY, United StatesHQ checked Sep 17, 202611-5015 contacts →

Indirect evidence

“Apertura is a biotechnology company opening opportunities in gene therapy for treating debilitating diseases with limited options.”

Source: RevenueBase Database · checked Sep 17, 2026
11Indirect evidenceEvanston, IL, United StatesHQ checked Sep 17, 20261-1014 contacts →

Indirect evidence

“Syenex is a synbio technology company that provides genetic medicine developers with access to best-in-class targeted delivery technologies (ex vivo & in vivo).”

Source: RevenueBase Database · checked Sep 17, 2026
12Indirect evidenceHayward, CA, United StatesHQ checked Sep 17, 202611-5010 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
13Indirect evidenceDurham, NC, United StatesHQ checked Sep 17, 202651-20010 contacts →

Indirect evidence

“StrideBio is a product-driven, fully integrated gene therapy company focused on creating and developing innovative genetic medicines with life-changing or curative potential for…”

Source: RevenueBase Database · checked Sep 17, 2026
14Partial evidenceMalvern, PA, United StatesHQ checked Sep 17, 202611-5010 contacts →

Partial evidence

“Vector Biolabs', a Fortis Life Sciences ® company, mission has always been to offer the highest quality AAVs and adenoviruses to accelerate scientific discovery.”

Source: RevenueBase Database · checked Sep 17, 2026
15Indirect evidenceLexington, MA, United StatesHQ checked Sep 17, 202611-509 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
16Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 17, 20261-108 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
17Indirect evidenceBoston, MA, United StatesHQ checked Sep 17, 20261-107 contacts →

Indirect evidence

“NIVIRON is a next-generation biotechnology company developing gene therapy technologies using artificial intelligence, which we integrate into all scientific and business…”

Source: RevenueBase Database · checked Sep 17, 2026
18Indirect evidenceRockville, MD, United StatesHQ checked Sep 17, 202611-506 contacts →

Indirect evidence

“AAVnerGene is a leading Biotech company specializing in advanced gene therapy technologies using the AAV platform.”

Source: RevenueBase Database · checked Sep 17, 2026
19Partial evidenceMorrisville, NC, United StatesHQ checked Sep 17, 20261-102 contacts →

Partial evidence

“Clarus Biologics holds the intellectual property to develop and manufacture virus like particles or VLPs for safer and more efficient carrier mechanisms for innovator antigens.”

Source: RevenueBase Database · checked Sep 17, 2026

Showing 19 of 36 lentiviral vector manufacturers based in the United States

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Lentiviral vector manufacturers based in the United States at a glance

As of Sep 17, 2026
51.5%Verified-email coverage
21.8Average contacts per company
11-50Median size (employees)
13.9%Largest-city concentration · Rockville
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
10
11-50
14
51-200
5
201-500
5
501-1,000
1
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 36 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 lentiviral vector manufacturers, 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.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “lentiviral vector manufacturers”. 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 lentiviral vector manufacturers), 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 lentiviral vector manufacturers, and records with no verified work email. Companies headquartered outside United States 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 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, 404 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 17, 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.

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 lentiviral vector manufacturers, 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 lentiviral vector manufacturers are there based in the United States?

RevenueBase identified 36 lentiviral vector manufacturers headquartered in the 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?

Ascend Advanced Therapies, headquartered in Rockville, tops this list with the largest team on record.

Which city has the most lentiviral vector manufacturers?

Rockville leads with 5 headquartered companies, followed by Gaithersburg (3) and Boston (2).

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 404 verified decision-maker contacts tracked across these 36 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 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 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.