| # | Company | Employees |
|---|---|---|
| 1 |
Regeneronregeneron.com
Develops and commercializes life-transforming medicines for serious diseases, establishing new approaches in science, manufacturing, and health. Building a future in biopharmaceuticals. |
16,874 |
| 2 |
Pall Life Sciencespall.com
A global leader in filtration and purification solutions, helping diverse customers improve processes, protect patients, enhance manufacturing, and deliver sustainable benefits |
1,480 |
| 3 |
Flatiron Healthflatiron.com
Improving and extending lives by leveraging the experiences of individuals with cancer |
1,442 |
| 4 |
Certified Groupcertifiedgroup.com
Family of laboratory and consulting companies offering expert testing, consulting, and auditing services for various industries across North America |
1,359 |
| 5 |
Axsome Therapeutics, Inc.axsome.com
Biopharmaceutical company focused on developing novel therapies for central nervous system conditions with limited treatment options, improving patient lives and providing more therapeutic options |
846 |
| 6 |
Menarini Stemlinestemline.com
Development and commercialization of innovative targeted therapies for cancer patients, including FDA-approved ELZONRIS and clinical-stage candidates. |
792 |
| 7 |
ACM Global Laboratoriesacmgloballab.com
A global leader in clinical trial testing services with facilities in multiple countries, conducting over 20 million tests annually across various medical disciplines |
516 |
| 8 |
Taconic Biosciencestaconic.com
A global leader in genetically engineered rodent models and services, providing custom solutions for research model acquisition, breeding, testing, and distribution worldwide |
502 |
| 9 |
BioIVTbioivt.com
Global provider of high-quality biological specimens and services for precision medicine research, in vitro hepatic modeling, ADME-Tox model systems, and drug metabolism studies |
476 |
| 10 |
North Central Bronx Hospital
North Central Bronx Hospital is a biotechnology company located in Bronx, New York that focuses on healthcare solutions and medical advancements |
391 |
| 11 |
Syndax Pharmaceuticalssyndax.com
A biotechnology company located in Waltham, MA focusing on developing pharmaceuticals |
334 |
| 12 |
Immunovantimmunovant.com
A clinical-stage immunology company developing targeted therapies for autoimmune diseases to improve the lives of affected individuals Visit immunovantcom for more information |
315 |
| 13 |
Certified Laboratories, Inc.certified-laboratories.com
A leading food industry laboratory offering full service quality testing services across various sectors with expertise in microbiology and FDA nutritional labeling |
313 |
| 14 |
Roivantroivant.com
Roivant builds nimble biotech and healthcare technology companies to deliver innovative medicines targeting various diseases with a focus on unmet medical needs |
229 |
| 15 |
Labconco Corporationlabconco.com
Manufacturing laboratory equipment: ventilation products, safety cabinets, glassware washers, forensic enclosures, centrifugal concentrators, lyophilizers, evaporators, water purification systems. Custom products also available. |
224 |
| 16 |
Formation Bioformation.bio
Technology platform optimizing clinical drug development, accelerating trial design, completion, and data quality to speed up new treatment access. |
196 |
| 17 |
Opentrons Labworks Inc.opentrons.com
Development of user-friendly liquid handling robots and genome-scale cell engineering solutions to accelerate research and innovation in life sciences. |
196 |
| 18 |
Immunaiimmunai.com
Utilizing single-cell biology and AI to map and reprogram the immune system for innovative drug development and improved patient outcomes |
177 |
| 19 |
Acorda Therapeutics, Inc.acorda.com
A biotechnology company focused on developing therapies for neurological disorders, known for innovation, collaboration, employee retention, and industry leadership |
170 |
| 20 |
Enzo Life Sciences, Inc.enzo.com
Development and supply of high-quality antibodies, probes, assays, and biochemicals supporting biomedical research and drug development worldwide. |
168 |
| 21 |
Genencorgenencor.com
A global leader in industrial biotechnology, developing innovative enzymes and bio-based solutions to improve performance and reduce environmental impact in various industries |
146 |
| 22 |
Y-mAbs Therapeutics, Inc.ymabs.com
A clinical biopharmaceutical company developing novel antibody-based cancer therapeutics to address unmet medical needs in pediatric and adult patients |
61 |
| 23 |
Biocogent LLCbiocogent.com
Provider of high technology products and services for personal care and cosmetic industries using biotechnology for innovative functional ingredients and customer support |
38 |
| 24 |
Canon BioMedicalcanon-biomedical.com
The company focuses on developing, manufacturing, and marketing innovative technologies for biomedical research and healthcare, aiming to advance science and improve health |
30 |
| 25 | 26 | |
| 26 |
Natural Biologics, Inc.naturalbiologics.com
This company provides natural solutions for livestock producers by offering products with rigorously selected ingredients to improve animal health and performance |
14 |
| 27 |
The Channel Group, LLC
A New York-based biomedical venture firm specializing in creating, developing, and managing life sciences companies, as well as advising on strategic transactions |
7 |
| 28 |
Apath, LLCapath.com
A technology licensing company focused on applying virology and viral genetics to help pharmaceutical companies develop therapies for viral infections |
5 |
| 29 |
The Cure Is Nowthecureisnow.org
A national non-profit organization dedicated to eliminating diseases through awareness, education, and scientific research using emerging technologies |
5 |
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Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Oct 24, 2026.
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