| # | Company | Employees |
|---|---|---|
| 1 |
Analog Devicesanalog.com
Global semiconductor company combining analog, digital, and software technologies to advance digitized factories, mobility, healthcare, and climate solutions. |
27,234 |
| 2 |
Sensata Technologiessensata.com
Supplier of sensing, electrical protection, control, and power management solutions enhancing safety, efficiency, and comfort across multiple industries worldwide. |
7,634 |
| 3 |
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 |
| 4 |
Teradyneteradyne.com
This company provides advanced test solutions for semiconductors, electronic systems, wireless devices, and robotics to improve productivity and lower costs for manufacturers worldwide |
6,210 |
| 5 | 4,581 | |
| 6 |
MIT Lincoln Laboratoryll.mit.edu
Research and development center applying advanced technology to national security problems, focusing on long-term innovation and rapid prototyping. |
4,083 |
| 7 |
Draperdraper.com
A nonprofit engineering innovation company advancing technologies for national security through collaboration with government, academia, and industry to solve complex challenges |
2,932 |
| 8 |
Cognex Corporationcognex.com
Advanced machine vision technology enabling manufacturing and distribution companies to improve quality, efficiency, and automation with AI-powered vision sensors and systems. |
2,580 |
| 9 |
Mercury Systemsmrcy.com
A technology company pushing processing power to the tactical edge for aerospace and defense missions, enabling innovation and decision superiority worldwide |
2,300 |
| 10 |
Novanta Inc.novanta.com
Supplier of advanced technology solutions in precision medicine, manufacturing, robotics, and surgery, enabling high-performance, tailored equipment for OEMs. |
2,189 |
| 11 | 2,182 | |
| 12 |
Brooks Automationbrooks.com
Provider of automation solutions for the semiconductor industry, specializing in robotics, automation systems, and contamination control to empower chip manufacturers worldwide |
1,982 |
| 13 |
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 |
| 14 |
Creation Technologiescreationtech.com
Global Electronics Manufacturing Services provider with 14 locations worldwide offering Full Product Development, Manufacturing, Test & Design Services for OEMs in various industries |
1,882 |
| 15 |
Vicorvicorpower.com
Designs and manufactures modular power components and complete power systems for computing, industrial, telecom, transportation, aerospace, and defense markets. |
998 |
| 16 |
Rochester Electronics, LLCrocelec.com
Provider of a full range of semiconductors, including end-of-life and active components, with manufacturing services and solutions for faster time-to-market |
710 |
| 17 |
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 |
| 18 |
Trexontrexon.com
Offers unique connectivity solutions. Withstands tough environments, exacting applications. Provides wide variety of high-performance wire and cable solutions through collective brand strength. |
525 |
| 19 |
Evident Industrialevidentscientific.com
Design, manufacture advanced inspection technologies, industrial products, ensuring integrity critical assets, diverse sectors including electronics, aerospace, oil and gas, and mining. |
492 |
| 20 |
JEOL USAjeolusa.com
A global leader in electron optics and instrumentation for scientific research, providing innovative solutions for advanced scientific endeavors worldwide |
357 |
| 21 |
Tech Etchtechetch.com
Specializing in manufacturing precision thin metal components, flexible printed circuits, and EMI/RFI shielding for aerospace, military, medical, telecommunication, and electronics industries |
270 |
| 22 |
NextPhase Medical Devicesnextphasemed.com
A leading EMS partner for medical device OEMs, offering design, development, manufacturing, and assembly solutions with a focus on quality and positive patient impact |
118 |
| 23 |
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 |
| 24 |
Segue Manufacturing Services | ElectroMech, Cable & Harness, PCBA | USA, Mexico & China Solutionssegue-mfg.com
Global contract electronics manufacturer specializing in electro-mechanical integration, cable assembly, and engineering services for high-reliability industries, with facilities in USA and China |
83 |
| 25 |
Remtec, Inc.remtec.com
Specializing in advanced ceramic packaging technology, this company provides mission-critical solutions for military, semiconductor, medical, industrial, and telecom sectors worldwide |
52 |
| 26 |
Accutronicsaccutronics.us
A high-end electronics manufacturer based in Massachusetts, offering services from NPI to medium-volume production for a variety of industries with a focus on quality and expertise |
47 |
| 27 |
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 |
| 28 |
VJ Electronixvjelectronix.com
An electrical/electronic manufacturing company located in Chelmsford, MA, United States, specializing in producing a variety of electronic products |
44 |
| 29 |
Schleifring North America, LLCschleifring.com
A manufacturing company specializing in electrical and electronic products based in Chelmsford, MA, United States |
32 |
| 30 |
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 |
| 31 |
Photofabrication Engineering Inc.photofabrication.com
A leading provider of engineering and manufacturing solutions for renewable energy, automotive, medical, aerospace, and defense industries, specializing in photochemical etching and metal part production |
25 |
| 32 |
ECRM Imaging Systems, An ISO 13485 Registered Companyecrm.com
Specializing in laser-based optical systems for production equipment and medical devices, providing high-quality OEM and contract manufacturing services with a focus on customer engagement and engineering excellence |
20 |
| 33 |
Valley Design Corp.valleydesign.com
Manufacturer of precision optical components, wafers, substrates, windows Specializes in ultra-thin, ultra-flat, super polishing, tight tolerances, and CNC machining services |
7 |
| 34 |
Doonryan Electricdoonryanelectric.com
An electrical/electronic manufacturing company located in Roslindale, Massachusetts, specializing in the production of electrical components and electronic devices |
3 |
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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 24, 2026.
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