| # | Company | Employees |
|---|---|---|
| 1 | 40,813 | |
| 2 |
Agilent Technologiesagilent.com
Innovative company providing advanced analytical, research, and diagnostic solutions for various industries worldwide, including healthcare, environmental safety, and energy solutions |
25,000 |
| 3 | 18,287 | |
| 4 |
Gilead Sciencesgilead.com
A company focused on delivering innovative medicines in virology and oncology, addressing health inequities, and empowering people to live healthier lives |
14,891 |
| 5 |
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 |
| 6 |
Bio-Rad Laboratoriesbio-rad.com
Development and supply of innovative products for life science research and medical diagnostics, enhancing discovery and clinical results worldwide. |
9,416 |
| 7 |
Cepheidcepheid.com
Healthcare company pioneering molecular diagnostics with automated systems and tests for a wide range of infections, diseases, and oncology, delivering actionable results Partnered with industry leader for expertise and solutions |
4,675 |
| 8 |
Guardant Healthguardanthealth.com
Develops advanced blood and tissue tests using AI and real-world data to improve cancer detection, monitoring, and treatment selection. |
4,663 |
| 9 |
Kite Pharmakitepharma.com
development and manufacturing of engineered T cell therapies targeting hematologic cancers, focusing on personalized, patient-specific cancer immunotherapy treatments. |
4,024 |
| 10 |
BioMarin Pharmaceutical Inc.biomarin.com
A global biotechnology company focused on developing targeted therapies for rare genetic diseases, improving lives through genetic discovery and innovation |
3,198 |
| 11 |
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 |
| 12 |
10x Genomics10xgenomics.com
This company provides tools for single cell analysis, spatial analysis, and in situ tools to advance research in various biological fields |
2,364 |
| 13 |
Kemin Industrieskemin.com
Global manufacturer providing over 500 specialty ingredients for diverse industries including human health, animal feed, pet food, and crop technologies, improving quality of life. |
2,221 |
| 14 |
Roche Molecular Systemsroche.com
A California-based company part of Roche Diagnostics in Switzerland, specializing in developing and supplying innovative medical diagnostic products and services |
1,748 |
| 15 |
Exelixisexelixis.com
A diverse team dedicated to transforming science into new cancer treatments, driven by innovative drug discovery and commercialization efforts |
1,566 |
| 16 |
Ionis Pharmaceuticals, Inc.ionis.com
Leading pioneer developing RNA-targeted medicines and gene editing therapies to treat serious neurological and cardiovascular diseases through advanced disease biology research. |
1,546 |
| 17 |
Ultragenyxultragenyx.com
Development and commercialization of novel therapies targeting rare and ultrarare genetic diseases with high unmet medical needs. |
1,520 |
| 18 |
Liquid Treesliquidtrees.org
The company promotes the importance of diatoms in capturing carbon dioxide and producing oxygen, aiming to remove 10 billion tonnes of CO2 |
1,447 |
| 19 |
Twist Biosciencetwistbioscience.com
Company develops proprietary silicon-based manufacturing process for synthetic DNA, enabling cost-effective, rapid, precise, high-throughput DNA synthesis and sequencing for life science researchers across diverse fields. |
1,300 |
| 20 |
Revolution Medicinesrevmed.com
This company discovers and develops new drugs for cancer by leveraging natural products and evolutionary insights to target frontier oncology |
1,216 |
| 21 | 1,105 | |
| 22 |
Amyrisamyris.com
vertically integrated biomanufacturing company, specialty molecules for flavors, fragrances, materials, beauty, personal care, food, enhancing lives, protecting ecosystems |
989 |
| 23 |
Ambry Geneticsambrygen.com
A leading clinical genomic diagnostic company with the largest genetic sequencing lab worldwide, offering precision medicine solutions and partnering with non-profit organizations |
977 |
| 24 |
BridgeBiobridgebio.com
This company is focused on finding, developing, and delivering breakthrough medicines for genetic diseases, bridging the gap between science and patient needs |
977 |
| 25 |
CareDx, Inc.caredx.com
Innovative company specializing in non-invasive diagnostics for organ transplant patients, offering surveillance and pre-transplant solutions for kidney and heart transplants |
834 |
| 26 |
BillionToOnebilliontoone.com
A precision diagnostics company using a proprietary platform to accurately count DNA molecules for improved disease detection |
815 |
| 27 |
Auckland City Hospitalyolobh.com
Yolobh Universe is a company based in India that focuses on education, technology, love, security, and futuristic concepts |
813 |
| 28 |
Arrowhead Pharmaceuticalsarrowheadpharma.com
A clinical stage company developing RNAi-based therapies to treat intractable diseases by silencing target genes, offering potentially life-changing treatments |
799 |
| 29 |
Corcept Therapeuticscorcept.com
Leading the research and development of cortisol modulation for treating serious diseases through innovative glucocorticoid receptor antagonists and groundbreaking treatments |
787 |
| 30 |
Sanford Burnham Prebyssbpdiscovery.org
A renowned biomedical research institute advancing scientific discoveries in cancer, neuroscience, immunology, and children's diseases while focusing on drug discovery and improving human health |
786 |
| 31 |
Cytokineticscytokinetics.com
A biopharmaceutical company focused on developing muscle activators and inhibitors for treating diseases affecting muscle performance, recognized for workplace excellence |
781 |
| 32 |
Molecular Devicesmoleculardevices.com
Provider of advanced platforms for high-throughput screening, genomic and cellular analysis, colony selection, and microplate detection in research laboratories. |
727 |
| 33 |
Veracyte, Inc.veracyte.com
Developing genomic diagnostic tests to improve clinical outcomes by reducing inconclusive results and avoiding unnecessary surgeries for patients. |
716 |
| 34 |
Invitaeinvitae.com
providing accurate genetic information through advanced technology to support medical decisions and improve healthcare for individuals and families |
677 |
| 35 |
MP Biomedicalsmpbio.com
Manufacture and supply over 55,000 life science, fine chemical, and diagnostic products with global distribution and quality certifications. |
677 |
| 36 |
Phenomenexphenomenex.com
A global technology leader developing innovative analytical chemistry solutions for researchers in various industries, accelerating science and improving global health and well-being |
668 |
| 37 |
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 |
| 38 |
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 |
| 39 |
Arcus Biosciencesarcusbio.com
A rapidly growing biopharmaceutical company in San Francisco developing cancer treatments with a focus on combination therapies and stock options for employees |
644 |
| 40 |
Nektar Therapeuticsnektar.com
Development and commercialization of innovative therapies targeting autoimmune and inflammatory diseases through scientific research and strategic pharmaceutical partnerships. |
644 |
| 41 | 588 | |
| 42 |
Dendreondendreon.com
A pioneer in immunotherapy, Dendreon develops innovative treatments for prostate cancer using a patient's own immune cells to fight the disease |
583 |
| 43 |
Denali Therapeuticsdenalitherapeutics.com
Company dedicated to defeating neurodegenerative diseases through innovative research, brain delivery engineering, biomarkers, and collaborative, impact-focused work environment |
582 |
| 44 |
Hygienahygiena.com
The company delivers rapid microbial detection solutions to various industries worldwide, with a focus on innovative, easy-to-use technologies and excellent customer service |
570 |
| 45 |
PSC Biotechยฎ Corporationbiotech.com
PSC Biotech Corporation provides life science companies worldwide with consulting, software solutions, contract manufacturing, investment consulting, and metrology services |
568 |
| 46 |
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 |
| 47 |
Vaxcytevaxcyte.com
A vaccine innovation company developing high-fidelity vaccines to prevent bacterial diseases using advanced synthetic techniques and a broad-spectrum conjugate vaccine |
558 |
| 48 |
Halozyme, Inc.halozyme.com
Develop enzyme technology enhancing drug delivery, reducing treatment times, partnering with pharma companies to improve patient outcomes globally. |
536 |
| 49 |
FUJIFILM Biosciencesfujifilm.com
Global supplier of products and services for life sciences, discovery research, cell and gene therapy, biotherapeutics, and vaccine production. |
511 |
| 50 |
Mettler-Toledo Raininmt.com
Leading provider of advanced pipetting solutions for life scientists worldwide, offering manual and electronic pipettes, tips, and expert services with innovative design and superior quality |
509 |
| 51 |
Travere Therapeuticstravere.com
Specializing in rare disease therapies, we aim to identify, develop, and provide life-changing treatments for those affected #InRareForLife |
507 |
| 52 |
Standard BioToolsstandardbio.com
provides advanced proteomic and multi-omic technologies enabling researchers to uncover unique biological insights beyond conventional methods |
501 |
| 53 | 494 | |
| 54 |
Calico Life Sciencescalicolabs.com
Research and development focused on understanding human aging biology and creating therapeutics to extend healthy human lifespan and treat age-related diseases. |
479 |
| 55 |
Vir Biotechnology, Inc.vir.bio
Immunology company focusing on developing transformative medicines for infectious diseases using monoclonal antibodies and cutting-edge technologies like AI and machine learning |
470 |
| 56 |
Biohubczbiohub.org
A nonprofit research network pursuing long-term scientific challenges by understanding disease mechanisms, developing new technologies, and collaborating with leading academic institutions |
467 |
| 57 |
Cytek Biosciencescytekbio.com
A leading manufacturer of flow cytometry products, offering affordable instruments and support services for researchers and clinicians worldwide |
448 |
| 58 |
Arcutis Biotherapeutics, Inc. (Nasdaq: ARQT)arcutis.com
Developing and commercializing innovative dermatology products targeting inflammation and immunology to address unmet medical needs efficiently and effectively. |
448 |
| 59 |
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 |
| 60 |
Element Bioscienceselementbiosciences.com
A life science company developing disruptive DNA sequencing and multiomics technology to empower researchers with affordable, high-quality data |
445 |
| 61 |
Fulgent Geneticsfulgentgenetics.com
Development of flexible, affordable genomic diagnostics and therapeutics focused on oncology, pathology, infectious, rare diseases, and reproductive health. |
445 |
| 62 |
Eikon Therapeuticseikontx.com
Revolutionary biopharmaceutical company using innovative technology to discover treatments for life-threatening diseases by measuring protein movement in living cells |
429 |
| 63 |
Beta Bionicsbetabionics.com
Development and commercialization of advanced adaptive algorithm-based autonomous insulin delivery devices to improve diabetes treatment and patient quality of life. |
425 |
| 64 |
Technical Safety Servicestechsafety.com
A leading provider of compliance, calibration, and certification services for laboratories, hospitals, and pharmacies across the United States |
424 |
| 65 |
Freenomefreenome.com
Biotech company developing blood tests using multiomics and machine learning to detect cancer early, aiming to empower individuals in disease prevention and treatment |
402 |
| 66 |
Personalis, Inc.personalis.com
Transforming cancer care with personalized testing, Personalis offers highly sensitive assays for tumor profiling, MRD detection, recurrence monitoring, and targeted therapy selection Located in Fremont, California |
401 |
| 67 | 385 | |
| 68 |
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 |
| 69 |
Geron Corporationgeron.com
Innovative biotech company focused on developing potential life-changing treatments for blood cancers through pioneering research and clinical trials |
379 |
| 70 |
Nurix Therapeuticsnurixtx.com
This company discovers drugs targeting ubiquitin E3 ligases to control protein levels for treating cancer and other diseases with novel, small molecules |
370 |
| 71 |
IDEX Health & Science, LLCidex-hs.com
Global leader in fluidics and optics solutions for life sciences, offering innovative products and engineering expertise to solve complex challenges |
364 |
| 72 |
Vera Therapeutics, Inc.veratx.com
Clinical-stage biotech company developing treatments for immunological and inflammatory diseases to enhance patient outcomes and quality of life |
349 |
| 73 |
Novogene Americanovogene.com
A leading provider of genomic services with cutting-edge NGS and bioinformatics expertise, delivering high-quality data to support research goals globally |
330 |
| 74 |
Prolacta Bioscienceprolacta.com
A life sciences company dedicated to advancing human milk science to provide critically ill infants with human milk-based nutritional products nationwide |
326 |
| 75 |
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 |
| 76 |
mdxhealthmdxhealth.com
Provides actionable molecular diagnostic information to personalize cancer diagnosis and treatment. Tests based on genetic, epigenetic, and molecular technologies for urologic cancers. |
322 |
| 77 |
Genomic Healthexactsciences.com
Leading provider of genomic-based diagnostic tests optimizing cancer care with Oncotype IQยฎ Genomic Intelligence Platform for treatment planning and personalized cancer diagnosis |
319 |
| 78 | 317 | |
| 79 |
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 |
| 80 | 308 | |
| 81 |
Xencorxencor.com
This company specializes in developing antibody and protein biotherapeutics using proprietary protein engineering technologies to improve patient outcomes and quality of life |
302 |
| 82 |
FibroGen, Inc.fibrogen.com
This company is dedicated to developing groundbreaking therapeutics for various medical conditions, with a focus on improving the lives of people globally |
271 |
| 83 |
IDEAYA Biosciencesideayabio.com
Oncology-focused precision medicine company in South San Francisco developing targeted therapeutics based on molecular diagnostics, with a primary focus on synthetic lethality |
266 |
| 84 |
insitroinsitro.com
A data-driven drug discovery company using machine learning and high-throughput biology to create new medicines faster and cheaper |
255 |
| 85 |
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 |
| 86 |
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 |
| 87 |
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 |
| 88 |
Codexis, Inc.codexis.com
Enzyme engineering company utilizing proprietary platform to develop high-performance enzymes for pharmaceuticals, nucleic acid synthesis, and RNAi therapeutics manufacturing |
240 |
| 89 |
BioGenexbiogenex.com
BioGenex develops advanced molecular pathology systems for cancer diagnosis and personalized medicine, with a focus on innovation and customer care |
240 |
| 90 |
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 |
| 91 |
Lyell Immunopharmalyell.com
Develops advanced CAR T-cell therapies for cancer patients, focusing on T-cells that resist exhaustion and have durable stemness for long-lasting clinical response. |
227 |
| 92 | 225 | |
| 93 |
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 |
| 94 |
Coherus Oncologycoherus.com
development and commercialization of next-generation PD-1 inhibitor and pipeline candidates targeting multiple cancers with proprietary combination strategies |
213 |
| 95 |
Sutro Biopharma, Inc.sutrobio.com
A clinical-stage company focused on developing cancer therapeutics using innovative technology for improved patient experience, with a robust pipeline and industry collaborations |
210 |
| 96 |
Kariuskariusdx.com
The company uses genomics and AI to map a patient's microbial landscape from a blood sample for rapid infectious disease treatment decisions |
209 |
| 97 |
Biotixbiotix.com
A global leader in manufacturing laboratory consumables and liquid handling solutions, dedicated to providing innovative products for researchers worldwide |
202 |
| 98 |
Onyx Pharmaceuticals, Inc., an Amgen subsidiaryamgen.com
A company specializing in developing and commercializing innovative cancer therapies to improve patients' lives, acquired by Amgen in 2013 |
199 |
| 99 |
Teknovateknova.com
Innovates manufacturing critical reagents, offering customizable solutions for cell and gene therapy, molecular diagnostics, and synthetic biology, accelerating discovery and development of novel therapies. |
184 |
| 100 |
StemCyte Inc.stemcytebio.com
A global leader in cord blood banking, supplying units for treatments, involved in research for new therapies, and contributing to public cord blood inventory |
183 |
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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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