| # | Company | Employees |
|---|---|---|
| 1 |
Otis Elevator Co.otis.com
The company specializes in providing innovative elevator, escalator, and moving walkway solutions to enhance urban mobility for over 160 years |
30,719 |
| 2 |
Insightinsight.com
A Fortune 500 solutions integrator specializing in accelerating digital transformation, modernizing businesses, and maximizing technology value through deep partnerships |
19,219 |
| 3 | 12,630 | |
| 4 |
First Solarfirstsolar.com
Leading American company specializing in advanced thin film photovoltaic technology, manufacturing high-performance solar modules for reliable power generation. |
6,686 |
| 5 | 5,633 | |
| 6 |
Honeywell Aerospaceaerospace.honeywell.com
Provides aerospace products, control systems, sensing, and security technologies to customers worldwide, focusing on innovation and manufacturing. |
5,473 |
| 7 |
VIAVI Solutionsviavisolutions.com
Provides network and service enablement technologies along with optical security products for mobile operators, governments, enterprises, and contractors. |
5,055 |
| 8 |
Fairchild - now part of ON Semiconductoronsemi.com
A pioneer in the semiconductor industry, focusing on energy-efficient innovations for mobile, industrial, automotive, and computing industries Partnered with ON Semiconductor |
2,598 |
| 9 |
Rogers Corporationrogerscorp.com
Global technology leader in specialty engineered materials, enabling high performance and reliability across EV/HEV, wireless infrastructure, automotive safety, and portable electronics. |
2,210 |
| 10 |
Comtech Telecommunications Corp.comtech.com
Global technology company providing terrestrial, wireless, and satellite communication solutions, as well as cloud capabilities and next-generation 9-1-1 services to worldwide commercial and government clients |
1,765 |
| 11 |
Confluent Medical Technologiesconfluentmedical.com
Applies materials science to MedTech innovation, specializing in design, development, and manufacturing of catheter-based devices and implants, including Nitinol, catheters, and polymer tubing. |
1,586 |
| 12 |
Verra Mobilityverramobility.com
A leading provider of smart mobility technology solutions, enhancing transportation safety, efficiency, and connectivity globally through innovative solutions and services |
1,512 |
| 13 |
Universal Electronicsuei.com
Designs and manufactures wireless control and sensor technology for home entertainment, smart home devices, and HVAC systems integration. |
1,506 |
| 14 |
Hexagon Mininghexagon.com
Provides advanced measurement and autonomous technology solutions for mining, enhancing safety, productivity, and sustainability through AI and digital tools. |
1,448 |
| 15 | 1,043 | |
| 16 |
Hydac
Provider of hydraulic components and systems for various industries, including wind turbines, machine tools, agricultural machinery, excavators, aerospace, power plants, and solar energy plants |
862 |
| 17 |
Local Motorshousegrail.com
Digital OEM specializing in micro-manufacturing, sales, service, and operations through local microfactories for a distributed production model |
762 |
| 18 |
TASER Internationalaxon.com
A leader in public safety technology, offering non-lethal weapons, body cameras, and evidence management solutions to law enforcement agencies worldwide |
657 |
| 19 |
Cranial Technologies, Inc.cranialtech.com
The company specializes in non-surgical treatment for plagiocephaly using custom-made cranial helmets, with over 35 years of proven results |
587 |
| 20 |
Ventana Medical Systemsdiagnostics.roche.com
Innovates and manufactures instruments and reagents for cancer diagnostics and drug development research, specializing in automated tissue processing and slide staining |
565 |
| 21 |
Cordiacordiaenergy.com
Sustainable energy solutions provider specializing in district energy, combined heat and power, and microgrids for various sectors across the United States |
220 |
| 22 |
Universal Laser Systemsulsinc.com
Global manufacturer of laser technology for cutting, engraving, and marking materials, providing innovative and cost-effective solutions through CO2 and fiber laser advancements |
102 |
| 23 | 43 | |
| 24 |
Delta Technology, LLCdeltatech1.com
The company specializes in providing robotics, automation, and custom solutions for manufacturing challenges, offering equipment and services to various industries since 1997 |
31 |
| 25 |
AdValue Photonics Incadvaluephotonics.com
Manufacturer of innovative fiber lasers for materials processing, scientific, LIDAR, and medical markets Specializes in glass and ceramic solutions Delivering groundbreaking products since 2007 |
22 |
| 26 |
Kyocera Solar Energykyocerasolar.com
A leading producer of solar-powered solutions with a focus on reliability, quality, and sustainability through vertically integrated manufacturing processes |
22 |
| 27 |
Glass Dyenamicsglassdyenamics.com
A leading smart glass company founded by MIT PhD's, specializing in innovative technology that reduces costs and offers customizable colors |
9 |
| 28 |
Clearway Community Energyclearwaycommunityenergy.com
Comprehensive energy solutions provider specializing in district energy, combined heat and power, and microgrids for a sustainable, resilient energy future |
8 |
| 29 |
Creative Power Solutions (USA)cpsusainc.net
The company specializes in advanced technology solutions for the energy sector, focusing on turbomachinery components, combustion systems, emissions optimization, and distributed power generation |
8 |
| 30 |
F.I.R.M. Inc.firminc.us
Agricultural equipment design and manufacturing company with over 20 years of experience, focused on innovation, food safety, and customer service excellence |
6 |
| 31 |
KEPP Energykeppenergy.com
This company offers innovative energy solutions to help the world produce and store clean, cost-effective energy and become power independent |
4 |
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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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