| # | 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 | 99,488 | |
| 3 |
Boston Scientificbostonscientific.com
Develops and provides innovative medical technologies including devices and therapies for various diseases, improving patient health and reducing healthcare costs worldwide. |
54,633 |
| 4 |
Analog Devicesanalog.com
Global semiconductor company combining analog, digital, and software technologies to advance digitized factories, mobility, healthcare, and climate solutions. |
27,234 |
| 5 |
Amazon Fulfillment Technologies & Roboticsamazon.jobs
The company partners people with intelligent robots to enhance order fulfillment accuracy, create new jobs worldwide, and improve customer experience |
17,911 |
| 6 |
Toastpos.toasttab.com
Toast empowers restaurants with cloud-based software and hardware to streamline operations, drive revenue, and enhance guest experience through POS, marketing, and HR solutions |
7,762 |
| 7 |
Sensata Technologiessensata.com
Supplier of sensing, electrical protection, control, and power management solutions enhancing safety, efficiency, and comfort across multiple industries worldwide. |
7,634 |
| 8 |
Hologic, Inc.hologic.com
Develops innovative medical products, especially for women's health, focusing on early detection and better outcomes across breast, skeletal, diagnostic, and GYN surgical solutions. |
6,921 |
| 9 |
Bose Corporationbose.com
Develops advanced audio technologies and products for home, automotive, portable, and public spaces, enhancing music listening experiences worldwide. |
6,699 |
| 10 |
Entegrisentegris.com
A global leader in advanced science-based solutions for technology challenges, driving innovation with artificial intelligence, augmented reality, and IoT technologies |
6,612 |
| 11 |
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 |
| 12 |
Saint-Gobain Abrasivessaint-gobain-surfacesolutions.com
The company offers powerful and precise abrasives solutions for various markets, focusing on customization, performance, and safety with global presence |
3,196 |
| 13 |
Watts Water Technologieswatts.com
Provides diverse water solutions for residential, industrial, and municipal applications, including plumbing, water quality, HVAC, and drainage systems. |
2,947 |
| 14 |
Viant Medicalviantmedical.com
Global provider of design and manufacturing services for medical devices across various specialties, offering end-to-end capabilities from development to packaging. |
2,921 |
| 15 |
NETSCOUTnetscout.com
This company provides a Visibility Without Borders platform to help essential organizations manage complex networks, unlock insights, anticipate problems, and stay unstoppable |
2,708 |
| 16 | 2,532 | |
| 17 |
Haemoneticshaemonetics.com
A global healthcare company offering innovative medical products and solutions to improve patient care and reduce healthcare costs in various medical markets |
2,530 |
| 18 |
Abiomedabiomed.com
A leading provider of medical technology based in Danvers, MA, offering products for circulatory support and oxygenation to help patients recover |
2,388 |
| 19 |
Symboticsymbotic.com
This company develops innovative robotics and software for advanced automation solutions in the supply chain industry to increase efficiency and profitability |
2,074 |
| 20 |
IPG Photonicsipgphotonics.com
Global leader in fiber laser technology, providing reliable and efficient laser solutions across various industries with a strong focus on innovation and customer needs |
1,901 |
| 21 |
CIRCOR International, Inc.circor.com
Manufacture engineered flow control products for oil and gas, power generation, industrial, aerospace, and defense infrastructure markets. |
1,790 |
| 22 |
FUJIFILM Healthcare Americas Corporationhealthcaresolutions-us.fujifilm.com
Provides comprehensive healthcare technology and expertise. Focuses on disease detection, diagnosis, and treatment through diagnostic, enterprise, endoscopic, surgical, and in-vitro solutions. |
1,709 |
| 23 |
Boston Dynamicsbostondynamics.com
Development of advanced mobile manipulation robots featuring mobility, dexterity, perception, and agility using sensor-based controls and computation. |
1,630 |
| 24 | 1,502 | |
| 25 |
Tecomet, Inctecomet.com
Precision manufacturing solutions for medical device, aerospace, and defense industries, ensuring exceptional quality and engineering expertise to bring innovative products to market |
1,492 |
| 26 |
Nova Biomedicalnovabiomedical.com
Development and manufacturing of clinical, biotech, and veterinary diagnostic instruments with focus on accuracy, innovation, and global healthcare impact. |
1,492 |
| 27 |
Keltronkeltroncorp.com
This company develops and manufactures life safety event management systems for various environments, providing integrated fire and life safety alarm monitoring solutions |
1,318 |
| 28 |
SimpliSafesimplisafe.com
This company designs easy-to-use, wireless home security systems with professional monitoring, innovative technology, and no long-term contracts, protecting over 2 million Americans |
1,278 |
| 29 |
Freudenberg Medicalfreudenbergmedical.com
Partnering with medical and pharmaceutical companies, designing and manufacturing high-quality medical devices, precision components, and custom tubing from ideation to market launch. |
1,132 |
| 30 |
Commonwealth Fusion Systemscfs.energy
A company specializing in commercial fusion energy, developing compact power plants using HTS magnet technology to combat climate change |
1,089 |
| 31 |
Instroninstron.com
A global leader in manufacturing and servicing cutting-edge materials testing equipment for research, design, and quality control in various industries |
1,041 |
| 32 |
Vicorvicorpower.com
Designs and manufactures modular power components and complete power systems for computing, industrial, telecom, transportation, aerospace, and defense markets. |
998 |
| 33 |
Bruker Daltonicsbruker.com
Development and manufacturing of advanced mass spectrometry instruments and software for pharmaceutical, biotechnology, diagnostics, and chemical analysis research applications. |
939 |
| 34 |
Eaton Corporationeaton.com
Designs and manufactures data center airflow management solutions, monitoring consoles, furniture, and workbench systems for high-tech environments Trusted by major tech companies and government agencies |
917 |
| 35 |
Analogicanalogic.com
A global provider of healthcare and security technology solutions, specializing in advanced imaging systems, threat detection for aviation security, and OEM products |
913 |
| 36 |
Gradiantgradiant.com
Provides advanced water and wastewater treatment solutions for critical industries, reducing water usage, reclaiming resources, and renewing wastewater into freshwater. |
859 |
| 37 |
Form Energyformenergy.com
Development and manufacturing of cost-effective multi-day energy storage systems to ensure a clean, secure, and reliable electric grid during prolonged stress periods. |
847 |
| 38 |
Inogenprovider.inogen.com
Global medical technology company offering innovative respiratory products for homecare Specializes in portable oxygen concentrators for long-term oxygen therapy |
845 |
| 39 |
Cynosure, LLC.cynosure.com
Leading developer and manufacturer of light-based aesthetic and medical treatment systems for practitioners worldwide, focusing on promoting beautiful energy inside and out |
831 |
| 40 | 818 | |
| 41 |
Doble Engineeringdoble.com
Providing diagnostics and engineering expertise for the energy industry, specializing in condition monitoring, enterprise asset management, in-service testing, protection testing, security, and compliance solutions |
782 |
| 42 |
Lifelinelifeline.com
The company is a leading provider of medical alert systems, offering services to ensure safety and support for subscribers |
754 |
| 43 |
Philips Lifelinelifeline.com
Lifeline offers trusted medical alert services for seniors, providing peace of mind and quick access to help when needed Stay connected by following |
696 |
| 44 |
TransMedics, Inc.transmedics.com
A leader in portable ex-vivo perfusion of donor organs for transplantation, focused on increasing organ utilization, improving outcomes, and reducing transplant costs |
692 |
| 45 |
Veraltoveralto.com
A global leader in essential technology solutions, focused on water quality management, product authentication, and safeguarding vital global resources |
617 |
| 46 |
NxStage Home Hemodialysishometherapies.freseniusmedicalcare.com
Pioneering the renal care revolution through innovative, portable, and simple therapeutic solutions to enhance patient freedom and satisfaction |
609 |
| 47 |
E Ink Corporationeink.com
Leader in ePaper technology, providing durable, low-power display products to influential brands and manufacturers for innovative applications and environments |
605 |
| 48 |
Candela Medicalcandelamedical.com
A global medical aesthetic device company focusing on safety, efficacy, and trust, providing energy-based solutions for various medical-aesthetic applications since 1970 |
603 |
| 49 |
BK Medicalgehealthcare.com
Provides surgeons with real-time intraoperative imaging solutions to support critical decision-making and improve surgical procedure outcomes. |
556 |
| 50 |
Sensitechsensitech.com
Supply chain visibility solutions providing tracking, monitoring, and protection for temperature-sensitive products across food, life sciences, consumer goods, and industrial global markets. |
555 |
| 51 |
Quanterixquanterix.com
Innovative company digitizing biomarker analysis to revolutionize healthcare by enabling earlier disease detection and precise treatment methods for various therapeutic areas |
507 |
| 52 |
Babcock Powerbabcockpower.com
A global leader in providing innovative energy products and services to various industries like power generation, industrial, and environmental sectors |
498 |
| 53 |
JEOL USAjeolusa.com
A global leader in electron optics and instrumentation for scientific research, providing innovative solutions for advanced scientific endeavors worldwide |
357 |
| 54 |
UNICOM Engineeringunicomengineering.com
A leading integrator of purpose-built appliances and application platforms, providing lifecycle deployment services for software developers and OEMs worldwide |
346 |
| 55 |
Panametricspanametrics.com
A provider of moisture, oxygen, liquid, and gas flow measurement solutions known for high-technology flow meters in tough environments |
257 |
| 56 |
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 |
| 57 |
Speedline Technologiesitweae.com
Global manufacturer of capital equipment for electronics manufacturing, including printing, soldering, and cleaning equipment, with facilities and offices worldwide |
142 |
| 58 |
Aerodyne Researchaerodyne.com
Provides research, development, advanced sensors, and software for environmental quality, clean energy, propulsion technologies, and defense remote sensing. |
104 |
| 59 |
Celera Motion, A Novanta Companyceleramotion.com
The company specializes in solving engineering challenges with precision motion systems and components for technology-driven OEMs worldwide, enhancing lives through innovation |
93 |
| 60 | 84 | |
| 61 |
Saint-Gobain Ceramics - SGPlinkedin.com
The company designs and manufactures advanced ceramic materials for various industries worldwide, offering tailored solutions to meet tough application requirements |
82 |
| 62 |
NP Medical Inc.npmedical.com
Innovative supplier of medical devices for infusion therapy and vascular access markets, focused on improving patient outcomes and caregiver safety affordably |
72 |
| 63 |
Innoventinnovent.com
Engineering and manufacturing company providing innovative solutions to hygiene, aerospace, and industrial clients worldwide Part of Standex International Corporation |
70 |
| 64 |
Optometricsoptometrics.com
Specializing in optical components for defense, security, research, academia, and OEM customers globally with a focus on high quality, cost competitive products and services |
45 |
| 65 |
VJ Electronixvjelectronix.com
An electrical/electronic manufacturing company located in Chelmsford, MA, United States, specializing in producing a variety of electronic products |
44 |
| 66 |
Videology Industrial-Grade Camerasvideologyinc.com
A global leader in designing, engineering, and manufacturing industrial-grade embedded video cameras for various applications with value-added services and expertise in assembly and integration |
28 |
| 67 |
Mitchell Machinemitchellmachine.com
Manufacturing automation solutions provider offering dependable machinery, innovative machine design, project engineering, and consultation services to enhance manufacturing efforts |
16 |
| 68 |
Accion Systemsaccion-systems.com
The company specializes in reinventing propulsion for New Space by creating a more efficient ion thruster called the Tiled Ionic Liquid Electrospray engine |
14 |
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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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