| # | Company | Employees |
|---|---|---|
| 1 |
Thermo Fisher Scientificthermofisher.com
A global leader in science services, providing innovative technologies and pharmaceutical support to make the world healthier, cleaner, and safer |
100,256 |
| 2 |
Charles River Laboratoriescriver.com
Guided by strong purpose, creating healthier lives, focusing on therapeutics for patients, animal care, planet well-being, and its passionate, skilled people. |
22,000 |
| 3 |
Waters Corporationwaters.com
A global leader in analytical instruments and software, pioneering innovations in chromatography, mass spectrometry, and thermal analysis for various sciences |
11,842 |
| 4 |
Biogenbiogen.com
Company pioneers innovative science, delivering new medicines to transform patients' lives, with a global presence and focus on superior treatment outcomes. |
7,724 |
| 5 |
Modernamodernatx.com
Pioneering mRNA technology for new medicines to improve patient lives by providing real-time instructions for protein production in cells |
6,906 |
| 6 |
Vertex Pharmaceuticalsvrtx.com
Global biotechnology company focusing on creating medicines for serious and life-threatening diseases, with a pioneering history in treating cystic fibrosis |
6,382 |
| 7 |
Alexion Pharmaceuticals, Inc.alexion.com
Development of innovative medicines targeting rare diseases, focusing on complement system biology, expanding global reach to serve patients worldwide. |
5,112 |
| 8 |
Brukerbruker.com
Development and provision of advanced analytical instrumentation and solutions for research, industrial production, quality assurance, and process reliability worldwide. |
4,824 |
| 9 |
Revvityrevvity.com
Revvity specializes in innovative health science solutions, technologies, and services for healthcare advancements worldwide, covering discovery, development, and diagnosis to cure |
3,569 |
| 10 |
Alnylam Pharmaceuticalsalnylam.com
A global biotech company pioneering RNAi therapeutics to treat rare genetic diseases, with a breakthrough product and a robust pipeline |
2,883 |
| 11 |
Life Technologiesthermofisher.com
Scientific leadership providing innovative technologies, analytical solutions, patient diagnostics, and laboratory productivity tools through premier brands to enable healthier and safer research environments. |
2,592 |
| 12 |
argenxargenx.com
Global immunology company focused on developing novel antibody-based medicines for severe autoimmune diseases through collaborations with leading researchers |
2,315 |
| 13 |
BeiGenebeonemedicines.com
Global oncology company developing accessible and affordable cancer treatments through innovative research, collaborations, and commitment to improving medicine access for patients worldwide |
1,967 |
| 14 |
Cell Signaling Technology (CST)cellsignal.com
A privately-owned research institute specializing in developing high-quality antibodies for cancer research, validated by PhD scientists for reliable results |
1,818 |
| 15 |
Foundation Medicinefoundationmedicine.com
A molecular information company focused on transforming cancer care by providing comprehensive genomic profiling to inform personalized treatment options |
1,775 |
| 16 |
Repligen Corporationrepligen.com
Provides innovative bioprocessing solutions for biotherapeutic manufacturing, including filtration, chromatography systems, process analytics, fluid management, and proteins, for biologics, cell and gene therapies, mRNA, and antibodies. |
1,432 |
| 17 |
Azenta Life Sciencesazenta.com
Global provider of life sciences solutions, specializing in cold-chain sample management and genomic services for drug development, clinical research, and cell therapies worldwide |
1,267 |
| 18 |
Sarepta Therapeuticssarepta.com
Development of precision genetic medicines targeting rare diseases with significant impact on patients' lives and futures. |
1,160 |
| 19 |
Bruker Daltonicsbruker.com
Development and manufacturing of advanced mass spectrometry instruments and software for pharmaceutical, biotechnology, diagnostics, and chemical analysis research applications. |
939 |
| 20 |
Organogenesisorganogenesis.com
A regenerative medicine company specializing in advanced wound care, surgical, and sports medicine solutions, offering innovative products to address patient needs |
930 |
| 21 |
ConcertAIconcertai.com
Innovative AI-powered SaaS data company specializing in healthcare, experiencing rapid growth as a leader in the industry |
840 |
| 22 |
New England Biolabsneb.com
Leading enzyme producer for molecular biology, offering extensive recombinant and native enzymes for genomic research and related biotechnologies. |
815 |
| 23 |
Blueprint Medicinesblueprintmedicines.com
Develop targeted medicines addressing allergy, inflammation, oncology, and hematology by focusing on root causes and advancing clinical programs. |
722 |
| 24 |
VA Boston Healthcare System
A biotechnology company located in Quincy, MA, specializing in healthcare research and development at the VA Boston Healthcare System |
655 |
| 25 |
Apellis Pharmaceuticalsapellis.com
Developing transformative therapies targeting the complement system's C3 to treat diseases in ophthalmology, nephrology, hematology, and neurology with broad platform potential |
621 |
| 26 |
Beam Therapeuticsbeamtx.com
Pioneering CRISPR base editing technology to develop precision genetic medicines for life-long cures, while fostering a community of fearless innovators |
592 |
| 27 | 533 | |
| 28 |
Ginkgo Bioworksginkgo.bio
Using biology to design, develop, and optimize products for various commercial applications, with a focus on sustainable solutions and promoting diversity and inclusion |
532 |
| 29 |
Vericelยฎ Corporationvcel.com
A leading provider of advanced cell therapies and specialty biologics for sports medicine and severe burn care markets Core values include integrity, teamwork, and innovation |
520 |
| 30 |
Ardelyx, Inc.ardelyx.com
Discover, develop, and commercialize innovative medicines addressing unmet medical needs, including approved products and early-stage pipeline candidates. |
512 |
| 31 | 510 | |
| 32 |
Quanterixquanterix.com
Innovative company digitizing biomarker analysis to revolutionize healthcare by enabling earlier disease detection and precise treatment methods for various therapeutic areas |
507 |
| 33 |
Intellia Therapeutics, Inc.intelliatx.com
Leading genome editing company focusing on developing curative gene editing treatments using CRISPR/Cas9 technology to transform the lives of patients with severe diseases |
495 |
| 34 |
BlueRock Therapeuticsbluerocktx.com
A leading engineered cell therapy company developing regenerative medicines for neurology, cardiology, and immunology indications through innovative cell+gene platform |
474 |
| 35 |
Rhythm Pharmaceuticals Inc.rhythmtx.com
A biopharmaceutical developing therapies for rare MC4R pathway diseases using the Rhythm Engine to improve understanding, diagnosis, and treatment |
471 |
| 36 |
Nucleatenucleate.xyz
A nonprofit organization empowering the next generation of biotech leaders, helping academics build transformational technologies by removing barriers |
422 |
| 37 |
Velseravelsera.com
Velsera connects healthcare and life sciences to enable precision medicine, using data to improve healthcare globally through multiomics insights |
421 |
| 38 |
Harvard Bioscienceharvardbioscience.com
Global developer, manufacturer, and marketer of specialized apparatus and scientific instruments for life science research worldwide, sold through catalog, websites, and distributors |
409 |
| 39 |
Replimunereplimune.com
This company is dedicated to developing innovative cancer treatments that activate a strong full-body anti-tumor response, aiming to make cancer curable |
403 |
| 40 |
Kiniksa Pharmaceuticalskiniksa.com
discovering, acquiring, developing, and commercializing novel therapies focused on cardiovascular diseases with unmet medical needs |
391 |
| 41 |
Wave Life Scienceswavelifesciences.com
Biotechnology company harnessing RNA medicines to develop treatments for various disorders, including rare diseases like Duchenne muscular dystrophy and prevalent conditions like obesity |
386 |
| 42 |
Advanced Instruments, LLCaicompanies.com
A leading developer and manufacturer of analytical instruments and services for biopharmaceutical, clinical, and food & beverage industries, with global innovative technologies and reliable support |
382 |
| 43 |
Wyss Institute at Harvard Universitywyss.harvard.edu
The company leverages nature's principles to develop biologically inspired engineering innovations in healthcare, energy, robotics, and manufacturing through collaborations and startups |
378 |
| 44 |
Viridian Therapeutics, Inc.viridiantherapeutics.com
A biotechnology company in Waltham, Massachusetts developing new treatments, including anti-IGF-1R monoclonal antibody for thyroid eye disease |
373 |
| 45 |
BostonGenebostongene.com
BostonGene specializes in providing transformative AI-integrated molecular analytics for precision matching of therapies for cancer and immune-related diseases, improving patient lives |
370 |
| 46 |
CRISPR Therapeuticscrisprtx.com
A leading gene editing company developing gene-based medicines for serious diseases, using CRISPR/Cas9 technology and collaborating with industry leaders |
351 |
| 47 |
Sobi - North Americasobi-northamerica.com
Develops treatments, provides extensive patient support networks for people with rare, difficult-to-treat diseases using world-class protein biochemistry and biologics manufacturing. |
350 |
| 48 |
XtalPi Inc.en.xtalpi.com
A quantum physics-based, AI-powered drug R&D company revolutionizing drug discovery with integrated technology platform and support from renowned investors |
349 |
| 49 |
Generate:Biomedicinesgeneratebiomedicines.com
Innovating in generative biology to develop innovative therapeutics that drive breakthroughs in the field |
335 |
| 50 |
Scholar Rockscholarrock.com
Biopharmaceutical company specializing in developing therapies targeting protein growth factors to treat serious diseases with high unmet need |
330 |
| 51 |
bluebird biolinkedin.com
This company focuses on developing curative gene therapies for severe genetic diseases like sickle cell, thalassemia, and cerebral adrenoleukodystrophy |
316 |
| 52 |
nferencenference.com
Leverages academic minds, researchers, and patient data to accelerate drug development, generate evidence, and improve clinical trials, offering comprehensive biological and clinical insights. |
314 |
| 53 |
Nuvalent, Inc.nuvalent.com
Precision oncology company developing targeted therapies for cancer patients, utilizing structure-based design to create innovative small molecules for improved outcomes and reduced side effects |
308 |
| 54 |
Kymera Therapeuticskymeratx.com
A clinical-stage biotechnology company pioneering targeted protein degradation to develop medicines for immunological diseases and oncology, improving patient outcomes |
302 |
| 55 |
HighRes Biosolutionshighres.com
Global leader in laboratory automation enabling scientists to connect instrumentation with informatics for enhanced productivity Innovative hardware and software for adaptive experiments worldwide |
284 |
| 56 |
Genezengenezen.com
Company is a gene therapy CDMO, partners with organizations for gene and cell therapies, from concept to commercial production. Viral vector manufacturing, global regulatory licenses. |
272 |
| 57 |
EyePointeyepoint.bio
Developing and commercializing innovative treatments for serious retinal diseases, specifically wet age-related macular degeneration and diabetic macular edema, using sustained delivery technology. |
262 |
| 58 |
Praxis Precision Medicines, Inc.praxismedicines.com
Clinical-stage biopharmaceutical company developing therapies for CNS disorders by translating genetic insights into selecting biological targets for rare and prevalent neurological disorders |
233 |
| 59 |
Biocytogenbiocytogen.com
Biocytogen provides integrated solutions for antibody drug development using gene editing technologies, animal models, and preclinical validation studies for global biomedical communities |
227 |
| 60 |
iGEM Competitioncompetition.igem.org
Annual synthetic biology competition for students to build genetically engineered systems using BioBricks, striving to make a positive impact on communities |
210 |
| 61 |
Parabilis Medicinesparabilismed.com
FogPharma is developing HeliconTM peptides, a new drug modality that combines monoclonal antibodies with small molecules for broad, efficient drug targeting |
195 |
| 62 |
Akcea Therapeuticsionispharma.com
Specializing in RNA therapeutics, we commercialize medicines and advance a pipeline of novel treatments, prioritizing bringing transformative drugs to patients globally |
193 |
| 63 |
Editas Medicineeditasmedicine.com
A clinical stage genome editing company focused on using CRISPR technology to develop transformative treatments for serious diseases worldwide |
183 |
| 64 |
GreenLight Biosciencesgreenlightbiosciences.com
Develop and commercialize environmentally friendly, easy-to-use crop protection solutions leveraging natural methods to support sustainable farming practices. |
182 |
| 65 |
Forma Therapeutics (Now Novo Nordisk)novonordisk.com
A clinical-stage biopharmaceutical company focused on developing novel therapeutics for rare hematologic diseases and cancers, aiming to transform patients' lives |
182 |
| 66 |
HTPbiochempeg.com
The company specializes in producing PEGlinkers, although specific details of their products or services are not mentioned |
178 |
| 67 |
Manusmanusbio.com
Leading platform accelerating the transition to sustainable bioalternatives through synthetic biology, working across industries to scale up production efficiently |
177 |
| 68 |
Treelinetreeline.bio
Developing innovative precision medicines to improve outcomes for cancer patients and those with other serious conditions |
172 |
| 69 |
Disc Medicinediscmedicine.com
Biopharmaceutical company focused on developing innovative therapies for hematologic disorders by targeting fundamental pathways of red blood cell biology |
169 |
| 70 |
BioLabsbiolabs.io
Innovative co-working spaces, supporting life science startups with resources and a community to foster growth and maximize capital efficiency |
167 |
| 71 |
Verastem Oncologyverastem.com
A late-stage biopharmaceutical company dedicated to developing and commercializing new medicines for cancer patients by inhibiting critical signaling pathways |
167 |
| 72 |
Voyager Therapeutics, Inc.voyagertherapeutics.com
A biotechnology company specializing in gene therapy and neurology, overcoming delivery challenges with cutting-edge expertise in capsid discovery and neuropharmacology |
163 |
| 73 |
Verve Therapeuticsvervetx.com
A clinical-stage biotech company focused on developing gene editing therapies to permanently lower LDL cholesterol levels and protect against heart disease |
160 |
| 74 |
Solid Biosciencessolidbio.com
Life science company developing neuromuscular and cardiac programs for diseases like Duchenne and BAG3-mediated dilated cardiomyopathy, aiming to improve patient daily life |
160 |
| 75 |
WuXi NextCODEwuxinextcode.com
Global biotech company leveraging genomic big data for drug discovery, clinical diagnoses, population health, and precision medicine through a comprehensive platform |
159 |
| 76 |
Vizgenvizgen.com
Innovative company pioneering in situ single cell spatial genomics tools for gaining new insights into human health and disease research |
158 |
| 77 |
Boston Heart Diagnosticsbostonheartdiagnostics.com
Innovative cardiovascular diagnostics company revolutionizing heart health through personalized diagnostics, reports, lifestyle programs, and improved clinician-patient communication |
156 |
| 78 |
Hamilton Storagehamiltoncompany.com
A worldwide supplier of automated sample storage systems for research, pharmaceutical, and governmental institutions, with products including biobanking, tube and plate management, and liquid handling integration |
154 |
| 79 |
Tango Therapeuticstangotx.com
Biotechnology company developing novel cancer therapies targeting vulnerabilities with advanced DNA sequencing and CRISPR technology, focusing on genetic subtypes for precision medicine |
153 |
| 80 |
eGenesisegenesisbio.com
Revolutionizing transplantation with gene editing technology to develop human-compatible organs, tissues, and cells as a scalable alternative to allotransplantation |
153 |
| 81 |
Drug Hunterdrughunter.com
A company providing a resource for R&D innovators in drug discovery, offering easy-to-access information, events, and subscription services to enhance scientific knowledge and partnerships |
153 |
| 82 |
enGeneengene.com
Innovative genetic medicine company developing non-viral gene delivery platform for treating diseases, with lead product candidate targeting bladder cancer |
152 |
| 83 |
TScan Therapeuticstscan.com
Innovative biotech company developing T cell therapies for cancer treatment by identifying specific antigens that activate the immune system |
152 |
| 84 | 152 | |
| 85 |
ODC Life Sciencesodclifesciences.com
Specializing in rare diseases, OrphanDC connects patients to orphan drugs, offers clinical trials support, and facilitates early access programs in Latin America |
151 |
| 86 |
Enanta Pharmaceuticalsenanta.com
Specializing in drug discovery for virology and immunology, with a focus on RSV and CSU, Enanta develops small molecule drugs like glecaprevir for various infections |
148 |
| 87 |
Asimovasimov.com
Builds tools to program living cells, integrating synthetic biology, computer-aided design, machine learning. Advancing biologics and gene therapies design and manufacture. |
121 |
| 88 |
MassBiologicsmassbiologics.org
Develops and manufactures vaccines and other biologic products. Publicly operated, FDA-licensed facility serving public health interests for Massachusetts. |
105 |
| 89 |
Mispromispro.com
An accredited contract vivarium organization offering vivarium research space, animal care, and compliance services for preclinical rodent studies in North America |
91 |
| 90 |
Evolved By Naturebiotech.evolvedbynature.com
Biotech company creating sustainable molecules with Activated Silkโข technology to improve product performance and environmental impact in various industries |
60 |
| 91 |
TCRยฒ Therapeutics Inc.tcr2.com
Clinical-stage cell therapy company developing novel T cell therapies targeting solid tumors by utilizing TCR Fusion Construct T cells to kill cancer cells |
54 |
| 92 |
Markimarkishkreli.com
Luxury haircare brand from France with sustainable, high-quality botanical ingredients for healthy and beautiful hair |
40 |
| 93 |
MiNK Therapeuticsminktherapeutics.com
This clinical stage biopharmaceutical company pioneers allogeneic iNKT cell therapies for cancer and immune diseases with scalable off-the-shelf manufacturing capabilities |
31 |
| 94 |
Health Policy Associates Inchealthpolicyassociates.com
Provider of high quality consulting services to medical biotechnology community since 1992, assisting with product development, regulatory consulting, strategic planning, staffing, and financing |
28 |
| 95 |
The Termeer Foundation
Connecting life science innovators to create new medicines, cultivate leaders, collaborate with healthcare stakeholders, and eliminate barriers to progress for patients worldwide |
15 |
| 96 | 10 | |
| 97 |
Beeken Biomedicalbeekenbiomedical.com
A medical device company specializing in developing, licensing, and commercializing innovative wound care products to stop bleeding and prevent infections |
9 |
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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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