| # | Company | Employees |
|---|---|---|
| 1 |
Illuminaillumina.com
The company develops innovative technologies and assays for genetic analysis, enabling personalized medicine and advancing disease research, drug development, and molecular testing |
9,673 |
| 2 |
Neurocrine Biosciencesneurocrine.com
A neuroscience-focused biopharmaceutical company dedicated to discovering treatments for neurological, neuroendocrine, and neuropsychiatric disorders, providing hope for patients with limited options |
2,378 |
| 3 |
BioLegendbiolegend.com
Developing cutting-edge antibodies, proteins, and bioassays for biomedical research, offering superior products, customer service, and support Revolutionizing healthcare solutions and technologies globally |
660 |
| 4 |
ImmunityBio, Inc.immunitybio.com
Developing innovative cell and immunotherapy products to strengthen the immune system, target cancer and infectious diseases, and create immunological memory for long-term defense |
653 |
| 5 |
Crown Biosciencecrownbio.com
A global CRO specializing in oncology research, offering preclinical platforms, tumor organoid services, PDX models, biomarker analysis, and genomics services to optimize drug development |
566 |
| 6 |
Halozyme, Inc.halozyme.com
Develop enzyme technology enhancing drug delivery, reducing treatment times, partnering with pharma companies to improve patient outcomes globally. |
536 |
| 7 |
Travere Therapeuticstravere.com
Specializing in rare disease therapies, we aim to identify, develop, and provide life-changing treatments for those affected #InRareForLife |
507 |
| 8 | 494 | |
| 9 |
Avidity Biosciences, Inc.aviditybiosciences.com
The company utilizes a proprietary platform to develop RNA therapeutics that target genetic drivers of diseases, aiming to revolutionize therapy delivery |
447 |
| 10 |
Element Bioscienceselementbiosciences.com
A life science company developing disruptive DNA sequencing and multiomics technology to empower researchers with affordable, high-quality data |
445 |
| 11 |
Technical Safety Servicestechsafety.com
A leading provider of compliance, calibration, and certification services for laboratories, hospitals, and pharmacies across the United States |
424 |
| 12 |
Cue Healthcuehealth.com
Healthcare technology company empowering individuals to take control of their health with personalized diagnostics, real-time information, and at-home COVID-19 testing |
380 |
| 13 |
Prometheus Laboratories Inc.prometheuslabs.com
Prometheus Laboratories Inc develops and markets diagnostic tests for gastroenterology, enabling precision healthcare solutions and future growth through innovation |
324 |
| 14 | 317 | |
| 15 |
Kura Oncology, Inc.kuraoncology.com
A clinical-stage biopharmaceutical company developing small-molecule drug candidates targeting signaling pathways to improve outcomes for cancer patients |
315 |
| 16 | 308 | |
| 17 |
TriLink BioTechnologies, part of Maravai LifeSciencestrilinkbiotech.com
Global leader, nucleic acid and mRNA solutions, delivering chemical and biological expertise, CDMO services, high-quality materials including patented CleanCap mRNA capping technology for pharmaceutical and biotech. |
250 |
| 18 |
Inova Diagnostics, A Werfen Companyinovadx.com
A leader in autoimmune technologies, Inova Diagnostics develops and manufactures IVD systems and reagents for diagnosis and monitoring of complex disorders worldwide |
249 |
| 19 |
Calibre Scientific Groupcalibrescientific.com
Global provider of life science products & services for lab research, diagnostics, & biopharmaceuticals through acquisitions & organic growth, serving customers in 175+ countries |
248 |
| 20 |
Genogenomatica.com
Accelerates world's transformation to sustainable materials, replacing fossil fuels with plants. Creates molecules, ingredients, materials from sustainable sources. Powers high-performance for brands. |
232 |
| 21 |
Fate Therapeutics Inc.fatetherapeutics.com
Developing off-the-shelf, iPSC-derived cell products for cancer and autoimmune diseases, including T-cell and natural killer cell immunotherapies with synthetic controls. |
225 |
| 22 |
Biotixbiotix.com
A global leader in manufacturing laboratory consumables and liquid handling solutions, dedicated to providing innovative products for researchers worldwide |
202 |
| 23 |
Bionanobionano.com
Innovative genomic company advancing cancer research, bioengineering, and genome discovery with cutting-edge mapping and analysis tools for improved genome structure understanding |
175 |
| 24 |
Samumed, LLCsamumed.com
Leader in medical research for tissue regeneration, specializing in small molecule-based therapeutics for degenerative diseases, regenerative medicine, and oncology |
170 |
| 25 |
Singular Genomicssingulargenomics.com
A leader in multiomics, specializing in advanced NGS and multiomic technologies, offering innovative products for researchers and clinicians with rapid turnaround times |
161 |
| 26 | 159 | |
| 27 |
Arcturus Therapeuticsarcturusrx.com
Develops messenger RNA medicines for liver and respiratory rare diseases, utilizing LUNARยฎ delivery, STARRยฎ mRNA technology, and manufacturing expertise for various RNA therapeutics. |
155 |
| 28 |
Gossamer Biogossamerbio.com
San Diego-based biopharmaceutical company developing seralutinib for pulmonary arterial hypertension, with a focus on enhancing the lives of those affected |
151 |
| 29 |
Agena Bioscienceagenabio.com
Advancing genomics in healthcare with mass spectrometry platform for cancer profiling, genetic testing, pharmacogenetics, and clinical research globally |
151 |
| 30 |
Artiva Biotherapeuticsartivabio.com
Immunotherapy company producing allogeneic NK cell therapies at scale for autoimmune diseases and cancers, focusing on enhancing monoclonal antibody activity |
108 |
| 31 |
Poseida Therapeutics, Inc.poseida.com
Clinical-stage biopharmaceutical company advancing allogeneic cell therapies and genetic medicines with capacity to cure, utilizing proprietary genetic editing platforms and manufacturing. |
81 |
| 32 |
NanogenNanogen.com
Develops diagnostic products for improved patient care, focusing on cardiovascular disease and infectious diseases with molecular diagnostic kits and rapid test kits for point-of-care use |
74 |
| 33 |
Althea, CMOaltheacmo.com
Contract development and manufacturing organization for process development, drug substance, and drug product manufacturing, including formulation and aseptic fill finish. |
72 |
| 34 |
OZ Biosciencesozbiosciences.com
Product development company specializing in advanced delivery systems for bioactive materials such as DNA, siRNA, proteins, and antibodies to accelerate scientific discoveries |
22 |
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How this list is built
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 9, 2026.
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