Top Biotech companies in New York

Companies applying biology, chemistry, and computation to therapeutics and tooling. Filtered to companies headquartered in New York.

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Built from a search like: “Top Biotech companies in New York”

Ranked by current headcount across Biotech companies headquartered in New York. Refreshed daily.

1
Regeneron· Tarrytown, New York, United States
At Regeneron we believe that when the right idea finds the right team, powerful change is possible. As we work across our expanding global network to invent, develop and commercialize life-transforming medicines for people with serious diseases, we’re establishing new ways to think about science, manufacturing and commercialization. And new ways to think about health. Connect with us so we can learn more about you, and you can learn more about our biopharmaceutical medicines. And join us, as we build a future we believe in. Please visit www.regeneron.com/social-media-terms for information on how to engage with us on social media. An important note about privacy: Regeneron is committed to your privacy and will not ask for sensitive personal information such as social security number, date of birth or bank account details via email or social media.
- Post-IPO equity
- 17.3k employees
- Founded 1988
2
Flatiron Health· New York, New York, United States
Flatiron Health’s mission is to improve and extend lives by learning from the experience of every person with cancer.
- Series D
- 1.5k employees
- Founded 2012
3
Certified Group· Melville, New York, United States
Certified Group partners with customers to deliver innovative scientific solutions and expertise – So The World Can Trust In What It Consumes®. Our network of 30+ North American laboratories serves the food & beverage, dietary supplements, cosmetics, OTC, tobacco/nicotine, cannabis, and hemp industries.Certified Group includes Food Safety Net Services (FSNS), FSNS Certification & Audit, Certified Laboratories, EAS Consulting Group, and Labstat International Inc.
- 1.4k employees
- Founded 2019
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4
Axsome Therapeutics, Inc.· New York, New York, United States
Axsome Therapeutics, Inc. is a biopharmaceutical company developing novel therapies for central nervous system (CNS) conditions that have limited treatment options.Through development of therapeutic options with novel mechanisms of action, we are transforming the approach to treating CNS conditions. At Axsome, we are intensely committed to developing products that meaningfully improve the lives of patients and provide additional therapeutic options for physicians.
- Post-IPO debt
- 1.2k employees
- Founded 2012
5
Menarini Stemline· New York, New York, United States
The Menarini Group ("Menarini"), a leading Italian pharmaceutical and diagnostics company, and Stemline Therapeutics, Inc. ("Stemline"), a wholly-owned subsidiary of the Menarini Group focused on bringing transformational oncology treatments to people living with cancer. Inspired by the goal to improve outcomes for those with unmet medical needs, Menarini Stemline is driven to discover and develop innovative therapeutics for the treatment of cancer. Netiquette & Privacy Notice: https://bit.ly/48X6JSN
- Post-IPO equity
- 804 employees
- Founded 2003

6
ACM Global Laboratories· Rochester, New York, United States
ACM Global Laboratories, an affiliate of Rochester Regional Health in Rochester, New York, is a recognized leader global clinical trial testing services. ACM Global Laboratories operates in more than 65 countries around the globe, with wholly owned facilities in the U.S.A., England, India, and Singapore. Our full-time staff of laboratory experts performs more than 20 million tests annually, spanning all medical disciplines including pathology, microbiology, molecular diagnostics, toxicology and more.For more information, visit www.ACMGlobalLab.com or call 1-866-405 0400
- 522 employees
- Founded 1997
7
Taconic Biosciences· Rensselaer, New York, United States
Taconic Biosciences is a fully-licensed, global leader in genetically engineered rodent models and services. Founded in 1952, Taconic provides the best animal solutions so that customers can acquire, custom generate, breed, precondition, test, and distribute valuable research models worldwide. Specialists in genetically engineered mouse and rat models, precision research mouse models, and integrated model design and breeding services, Taconic operates three service laboratories and six breeding facilities in the U.S. and Europe, maintains distributor relationships in Asia and has global shipping capabilities to provide animal models almost anywhere in the world.
- 508 employees
- Founded 1952
8
BioIVT· Woodbury, New York, United States
BioIVT, formerly BioreclamationIVT, is a leading global provider of high-quality biological specimens and value-added services. We specialize in control and disease state samples including human and animal tissues, cell products, blood and other biofluids. Our unmatched portfolio of clinical specimens directly supports precision medicine research and the effort to improve patient outcomes by coupling comprehensive clinical data with donor samples.Our Research Services team works collaboratively with clients to provide in vitro hepatic modeling solutions. And as the world’s premier supplier of ADME-Tox model systems, including hepatocytes and subcellular fractions, BioIVT enables scientists to better understand the pharmacokinetics and drug metabolism of newly discovered compounds and the effects on disease processes. By combining our technical expertise, exceptional customer service, and unparalleled access to biological specimens, BioIVT serves the research community as a trusted partner in ELEVATING SCIENCE®.
- undisclosed
- 476 employees
- Founded 1981
9N
North Central Bronx Hospital· Bronx, New York, United States
North Central Bronx Hospital is a biotechnology company based out of 3424 Kossuth Ave, Bronx, New York, United States.
- 393 employees
10
Syndax Pharmaceuticals· New York, New York, United States
Syndax Pharmaceuticals is a commercial-stage biopharmaceutical company advancing innovative cancer therapies. Highlights of the Company’s pipeline include a menin inhibitor for R/R acute leukemia and a monoclonal antibody that blocks the CSF-1 receptor for chronic graft-versus-host disease. Fueled by our commitment to reimagining cancer care, Syndax is working to unlock the full potential of its pipeline and is conducting several clinical trials across the continuum of treatment. Review our social media community guidelines below:https://syndax.com/social-media-community-guidelines/
- Post-IPO debt
- 337 employees
- Founded 2005

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Find engineers at Biotech companies in New York

New York has long been a hub for Biotech, and the list above ranks the largest Biotech companies headquartered there by current headcount, drawn from public LinkedIn and Crunchbase records. With 303 matching companies in Refolk’s index, this is a good map of where the Biotech talent in New York lives - useful whether you’re recruiting, partnering, or sizing a market.

The biggest Biotech companies in New York tend to be the gravitational centres for specialised talent - senior engineers, ML researchers, applied scientists, designers - while the smaller ones compete on speed, equity, and proximity to founders.

Refolk converts this list into a live search. Ask for “Biotech engineers in New York hiring senior staff” or “founders of Biotech companies in New York who left in the last 12 months” and Refolk returns a ranked shortlist with the evidence that earned each person a spot.

How this list is built

Refolk pulled Biotech companies headquartered in New York from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 10 employees. The list refreshes once a day.

Last refreshed: Wed, 05 Aug 2026 18:00:37 GMT

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The list draws on the public company graph - headcount and growth signals, funding history, and recency. The criteria chips at the top show exactly which filters produced it, and the methodology section explains the ranking.

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