Company lists · Data refreshed September 2026

Top 25 Drug development biotechnology firms based in the United States

Name: Drug development biotechnology firms 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 1,700 companies tracked

RevenueBase identified 1,700 drug development biotechnology firms headquartered in the United States as of September 2026 and tracks 382,179 professional contacts across them, including 152,185 with verified work emails. San Diego is the largest hub.

This list covers drug development biotechnology firms 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

1,700Companies

382,179Contacts tracked

152,185Verified emails

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The 25 largest drug development biotechnology firms based in the United States

Ranked by team size

Top 25 of 1,700 drug development biotechnology firms 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 drug development biotechnology firms: 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	Pfizer	Indirect evidence	New York, NY, United StatesHQ checked Sep 16, 2026	10001+	88,560 contacts →
	Indirect evidence “We’re celebrating over 175 years of daring scientific innovation-and we’re not done yet.” Source: RevenueBase Database · checked Sep 16, 2026
2	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
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	Johnson & Johnson Innovative Medicine	Indirect evidence	Titusville, NJ, United StatesHQ checked Sep 16, 2026	10001+	26,637 contacts →
	Indirect evidence “At Johnson & Johnson Innovative Medicine, we innovate with purpose, to lead where medicine is going.” Source: RevenueBase Database · checked Sep 16, 2026
5	Genentech	Indirect evidence	South San Francisco, CA, United StatesHQ checked Sep 16, 2026	10001+	17,217 contacts →
	Indirect evidence “About Genentech We're passionate about finding solutions for people facing the world's most difficult-to-treat conditions.” Source: RevenueBase Database · checked Sep 16, 2026
6	Regeneron	Indirect evidence	Tarrytown, NY, United StatesHQ checked Sep 16, 2026	10001+	16,043 contacts →
	Indirect evidence “At Regeneron we believe that when the right idea finds the right team, powerful change is possible.” Source: RevenueBase Database · checked Sep 16, 2026
7	Charles River Laboratories	Indirect evidence	Wilmington, MA, United StatesHQ checked Sep 16, 2026	10001+	14,166 contacts →
	Indirect evidence “At Charles River, we are guided by our strong purpose-to create healthier lives-which centers around the patients who rely on the therapeutics we help to develop, the animals in…” Source: RevenueBase Database · checked Sep 16, 2026
8	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
9	Vertex Pharmaceuticals	Partial evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	5,001-10,000	8,099 contacts →
	Partial evidence “Vertex is a global biotechnology company that invests in scientific innovation to create transformative medicines for people with serious diseases and has made significant…” Source: RevenueBase Database · checked Sep 16, 2026
10	Daiichi Sankyo US	Indirect evidence	Basking Ridge, NJ, United StatesHQ checked Sep 16, 2026	10001+	3,973 contacts →
	Indirect evidence “At Daiichi Sankyo, we create essential medicine for longer, better lives.” Source: RevenueBase Database · checked Sep 16, 2026
11	Incyte	Indirect evidence	Wilmington, DE, United StatesHQ checked Sep 16, 2026	1,001-5,000	3,224 contacts →
	Indirect evidence “Incyte is focused on advancing biopharmaceutical innovation.” Source: RevenueBase Database · checked Sep 16, 2026
12	Premier Research	Indirect evidence	Morrisville, NC, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,584 contacts →
	Indirect evidence “Premier Research International LLC (Premier) is a global leader in clinical research and consulting services with expertise in driving an efficient and effective path to market…” Source: RevenueBase Database · checked Sep 16, 2026
13	Eisai US	Indirect evidence	Nutley, NJ, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,570 contacts →
	Indirect evidence “At Eisai Inc, human health care (hhc) is our goal.” Source: RevenueBase Database · checked Sep 16, 2026
14	Legend Biotech	Partial evidence	Somerset, NJ, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,154 contacts →
	Partial evidence “Legend Biotech is a global, commercial-stage biotechnology company developing and manufacturing novel therapies.” Source: RevenueBase Database · checked Sep 16, 2026
15	Beigene	Indirect evidence	Cambridge, MA, United StatesHQ checked Sep 16, 2026	n/a	2,135 contacts →
	Indirect evidence “Effective March 17, 2025, The U.S.” Source: RevenueBase Database · checked Sep 16, 2026
16	Celgene	Indirect evidence	Summit, NJ, United StatesHQ checked Sep 16, 2026	5,001-10,000	2,098 contacts →
	Indirect evidence “We have merged with Bristol Myers Squibb creating a leading biopharma company, ideally positioned to discover, develop and deliver innovative medicines for patients fighting…” Source: RevenueBase Database · checked Sep 16, 2026
17	Arisglobal	Indirect evidence	Waltham, MA, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,905 contacts →
	Indirect evidence “ArisGlobal is an AI-first technology company at the forefront of life sciences and the creator of LifeSphere®, the platform trusted by hundreds of life sciences organizations…” Source: RevenueBase Database · checked Sep 16, 2026
18	KBI Biopharma	Strong evidence	Durham, NC, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,645 contacts →
	Strong 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
19	EMD Serono, INC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,578 contacts →
	Indirect evidence “We aspire to create, improve and prolong life for people living with difficult-to-treat conditions like infertility, multiple sclerosis and cancer.” Source: RevenueBase Database · checked Sep 16, 2026
20	Syneos Health Clinical Solutions	Indirect evidence	Morrisville, NC, United StatesHQ checked Sep 16, 2026	10001+	1,569 contacts →
	Indirect evidence “Syneos Health® is a leading fully integrated biopharmaceutical solutions organization built to accelerate customer success.” Source: RevenueBase Database · checked Sep 16, 2026
21	Insmed Incorporated	Indirect evidence	Bridgewater Township, NJ, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,512 contacts →
	Indirect evidence “Insmed is a people-rst global biopharmaceutical company striving to deliver rst- and best-in-class therapies to transform the lives of patients facing serious diseases.” Source: RevenueBase Database · checked Sep 16, 2026
22	Exelixis	Indirect evidence	Alameda, CA, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,426 contacts →
	Indirect evidence “Every Exelixis employee is united in an ambitious cause: to transform science into new treatments that give cancer patients and their families hope for the future.” Source: RevenueBase Database · checked Sep 16, 2026
23	Certara	Strong evidence	Radnor, PA, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,237 contacts →
	Strong evidence “Certara accelerates medicines using proprietary biosimulation software, technology and services to transform traditional drug discovery and development.” Source: RevenueBase Database · checked Sep 16, 2026
24	Valeant Pharmaceuticals	Indirect evidence	Bridgewater, NJ, United StatesHQ checked Sep 16, 2026	10001+	1,121 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
25	Allucent	Indirect evidence	Cary, NC, United StatesHQ checked Sep 16, 2026	1,001-5,000	977 contacts →
	Indirect evidence “Allucent is on a mission to help bring new therapies to light by solving the distinct challenges of small and mid-sized biotech companies.” 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: drug development biotechnology firms. 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 drug development biotechnology firms.
Partial evidence: Its own public description names part of drug development biotechnology firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name drug development biotechnology firms. 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 1,700 drug development biotechnology firms based in the United States

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Drug development biotechnology firms based in the United States at a glance

As of Sep 16, 2026

39.8%Verified-email coverage

224.8Average contacts per company

11-50Median size (employees)

5.9%Largest-city concentration · San Diego

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

801

11-50

536

51-200

198

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 1,700 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 drug development biotechnology firms, 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 “drug development biotechnology firms”. 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 drug development biotechnology firms), 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 drug development biotechnology firms, 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, 152,185 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.

Drug development biotechnology firms by metro

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 drug development biotechnology firms, 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 drug development biotechnology firms are there based in the United States?

RevenueBase identified 1,700 drug development biotechnology firms 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?

Pfizer, headquartered in New York, tops this list with the largest team on record.

Which city has the most drug development biotechnology firms?

San Diego leads with 100 headquartered companies, followed by Boston (81) and Cambridge (70).

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 152,185 verified decision-maker contacts tracked across these 1,700 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.