Company lists · Data refreshed September 2026

Top 25 Biotech manufacturing companies based in the United States

Name: Biotech manufacturing companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 770 companies tracked

RevenueBase identified 770 biotech manufacturing companies headquartered in the United States as of September 2026 and tracks 205,690 professional contacts across them, including 80,405 with verified work emails. San Diego is the largest hub.

This list covers biotech manufacturing companies 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 16, 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 16, 2026 86% judged on-target in blind review

770Companies

205,690Contacts tracked

80,405Verified emails

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The 25 largest biotech manufacturing companies based in the United States

Ranked by team size

Top 25 of 770 biotech manufacturing companies based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to biotech manufacturing 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	ELI Lilly And Company	Indirect evidence	Indianapolis, IN, United StatesHQ checked Sep 16, 2026	10001+	49,409 contacts →
	Indirect evidence “We're a medicine company turning science into healing to make life better for people around the world.” Source: RevenueBase Database · checked Sep 16, 2026
2	MERCK	Indirect evidence	Rahway, NJ, United StatesHQ checked Sep 16, 2026	10001+	38,156 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
3	AMGEN	Indirect evidence	Thousand Oaks, CA, United StatesHQ checked Sep 16, 2026	10001+	33,433 contacts →
	Indirect evidence “Amgen harnesses the best of biology and technology to fight the world’s toughest diseases, and make people’s lives easier, fuller and longer.” Source: RevenueBase Database · checked Sep 16, 2026
4	MSD	Indirect evidence	Rahway, NJ, United StatesHQ checked Sep 16, 2026	10001+	23,184 contacts →
	Indirect evidence “At MSD, known as Merck & Co, Inc, Rahway, NJ, USA in the United States and Canada, we are unified around our purpose: We use the power of leading-edge science to save and improve…” Source: RevenueBase Database · checked Sep 16, 2026
5	Biogen	Partial evidence	Cambridge, MA, United StatesHQ checked Sep 16, 2026	5,001-10,000	10,389 contacts →
	Partial evidence “Founded in 1978, Biogen is a leading biotechnology company that pioneers innovative science to deliver new medicines to transform patients’ lives and to create value for…” Source: RevenueBase Database · checked Sep 16, 2026
6	Bio-Rad Laboratories	Indirect evidence	Hercules, CA, United StatesHQ checked Sep 16, 2026	5,001-10,000	8,149 contacts →
	Indirect evidence “Bio-Rad provides the healthcare industry with innovative and useful products that help life science researchers accelerate the discovery process and medical diagnostic labs obtain…” Source: RevenueBase Database · checked Sep 16, 2026
7	Danaher	Indirect evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	10001+	2,941 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
8	AGC Biologics	Partial evidence	Bothell, WA, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,510 contacts →
	Partial evidence “AGC Biologics is a leading global biopharmaceutical Contract Development and Manufacturing Organization (CDMO) with a strong commitment to delivering the highest standard of…” Source: RevenueBase Database · checked Sep 16, 2026
9	Legend Biotech	Strong evidence	Somerset, NJ, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,154 contacts →
	Strong evidence “Legend Biotech is a global, commercial-stage biotechnology company developing and manufacturing novel therapies.” Source: RevenueBase Database · checked Sep 16, 2026
10	KBI Biopharma	Indirect evidence	Durham, NC, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,645 contacts →
	Indirect evidence “KBI Biopharma is an award-winning biopharmaceutical contract services organization providing fully-integrated, accelerated drug development and biomanufacturing services to…” Source: RevenueBase Database · checked Sep 16, 2026
11	Resilience	Partial evidence	Blue Ash, OH, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,270 contacts →
	Partial evidence “Resilience is a North American contract development and manufacturing organization (CDMO) focused on delivering high-quality, scalable manufacturing solutions for advanced…” Source: RevenueBase Database · checked Sep 16, 2026
12	Repligen Corporation	Partial evidence	Waltham, MA, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,254 contacts →
	Partial evidence “Repligen, a global, bioprocessing-focused life sciences company, provides innovative solutions for the advancement of biotherapeutic manufacturing.” Source: RevenueBase Database · checked Sep 16, 2026
13	Genscript	Partial evidence	Piscataway, NJ, United StatesHQ checked Sep 16, 2026	5,001-10,000	1,194 contacts →
	Partial evidence “GenScript Life Science Group is a part of GenScript Biotech Corporation.” Source: RevenueBase Database · checked Sep 16, 2026
14	Nova Biomedical	Indirect evidence	Waltham, MA, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,107 contacts →
	Indirect evidence “Nova Biomedical is entering a new chapter.” Source: RevenueBase Database · checked Sep 16, 2026
15	Medimmune	Indirect evidence	Gaithersburg, MD, United StatesHQ checked Sep 16, 2026	1,001-5,000	886 contacts →
	Indirect evidence “MedImmune is the global biologics research and development arm of AstraZeneca, a global, innovation-driven biopharmaceutical business that focuses on the discovery, development…” Source: RevenueBase Database · checked Sep 16, 2026
16	Aldevron	Indirect evidence	Fargo, ND, United StatesHQ checked Sep 16, 2026	1,001-5,000	802 contacts →
	Indirect evidence “Aldevron is proud to be part of Danaher.” Source: RevenueBase Database · checked Sep 16, 2026
17	MGS Mfg. Group	Partial evidence	Germantown, WI, United StatesHQ checked Sep 16, 2026	1,001-5,000	658 contacts →
	Partial evidence “As a global provider of healthcare manufacturing solutions, MGS provides the right balance to drive vital innovations: robust, vertically integrated global capabilities combined…” Source: RevenueBase Database · checked Sep 16, 2026
18	Takeda Pharmaceuticals America, INC	Indirect evidence	Lincolnshire, IL, United StatesHQ checked Sep 16, 2026	10001+	561 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
19	Vaxcyte	Indirect evidence	San Carlos, CA, United StatesHQ checked Sep 16, 2026	501-1,000	485 contacts →
	Indirect evidence “Vaxcyte is a vaccine innovation company engineering high-fidelity vaccines to protect humankind from the consequences of bacterial diseases.” Source: RevenueBase Database · checked Sep 16, 2026
20	ABEC	Strong evidence	Bethlehem, PA, United StatesHQ checked Sep 16, 2026	501-1,000	430 contacts →
	Strong evidence “ABEC engineered solutions and services for biotech manufacturing Since 1974, ABEC has been a global leader in delivering integrated process solutions and services for…” Source: RevenueBase Database · checked Sep 16, 2026
21	Antylia Scientific	Indirect evidence	Vernon Hills, United StatesHQ checked Sep 16, 2026	1,001-5,000	428 contacts →
	Indirect evidence “When scientific advancement and technological innovation converge, we meet the needs of our customers everywhere.” Source: RevenueBase Database · checked Sep 16, 2026
22	Meissner	Indirect evidence	Camarillo, CA, United StatesHQ checked Sep 16, 2026	501-1,000	373 contacts →
	Indirect evidence “Meissner manufactures advanced microfiltration and single-use systems.” Source: RevenueBase Database · checked Sep 16, 2026
23	Avid Bioservices	Indirect evidence	Tustin, CA, United StatesHQ checked Sep 16, 2026	201-500	356 contacts →
	Indirect evidence “Avid Bioservices is a biologics CDMO and partner focused on delivering quality, speed, and predictability from DNA to CGMP.” Source: RevenueBase Database · checked Sep 16, 2026
24	Microbiologics	Indirect evidence	Saint Cloud, MN, United StatesHQ checked Sep 16, 2026	201-500	337 contacts →
	Indirect evidence “We are the world’s leading experts and go-to collaborators in biological products and services, focused on protecting the health and safety of people around the world.” Source: RevenueBase Database · checked Sep 16, 2026
25	Phizer Pharmaceuticals INC	Indirect evidence	Monument, CO, United StatesHQ checked Sep 16, 2026	n/a	333 contacts →
	Indirect evidence “Phizer Pharmaceuticals Inc is an information technology and services company based out of 3020 Vandenberg Ave, Monument, Colorado, United States.” Source: RevenueBase Database · checked Sep 16, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: biotech manufacturing companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names biotech manufacturing companies.
Partial evidence: Its own public description names part of biotech manufacturing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name biotech manufacturing companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 770 biotech manufacturing companies based in the United States

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Biotech manufacturing companies based in the United States at a glance

As of Sep 16, 2026

39.1%Verified-email coverage

267.1Average contacts per company

11-50Median size (employees)

5.3%Largest-city concentration · San Diego

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

305

11-50

244

51-200

114

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 770 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 biotech manufacturing 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “biotech manufacturing 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 biotech manufacturing 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 biotech manufacturing companies, 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, 80,405 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 16, 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.

Biotech manufacturing companies by metro

Biotech manufacturing companies in San Diego41

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 biotech manufacturing 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 biotech manufacturing companies are there based in the United States?

RevenueBase identified 770 biotech manufacturing companies 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?

ELI Lilly And Company, headquartered in Indianapolis, tops this list with the largest team on record.

Which city has the most biotech manufacturing companies?

San Diego leads with 41 headquartered companies, followed by Boston (20) and New York (18).

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 80,405 verified decision-maker contacts tracked across these 770 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 16, 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.