| Company |
County |
Employees |
Service |
| DeRoyal Industries |
Knox |
1000-4999 |
Medical device manufacturing |
| Radio Systems Corp. |
Knox |
500-999 |
Pet products: PetSafe, Invisible Fence Brand, SportDOG |
| Siemens Healthcare |
Knox |
250-499 |
Clinical imaging, preclinical and biomarker solutions |
| Bandit Lites |
Knox |
250-499 |
LED lighting fixtures for the entertainment industry |
| Protomet |
Anderson |
100-249 |
Products developed specifically for the marine industry |
| ProNova Solutions |
Knox |
100-249 |
Proton therapy treatment systems |
| Aqua-Chem |
Knox |
100-249 |
Water purification technologies |
| AESSEAL Inc. |
Blount |
100-249 |
Design, manufacture of mechanical seals and seal support systems |
| PerfectServe |
Knox |
100-249 |
Unified communications platform that connects clinicians in any care setting |
| Electric Power Research Institute (EPRI) |
Knox |
100-249 |
Technology solutions that enable the transformation of power systems to be more flexible, resilient and connected. |
| Fulton Bellows |
Knox |
100-249 |
Hydro formed metal bellows and welded assemblies; thermostatic actuators and diaphragms |
| Centrus Technical Solutions |
Anderson |
100-249 |
Provides technical solutions for the engineering, development, prototyping and manufacturing of complex engineered products |
| Vacuum Technology Incorporated (VTI) |
Anderson |
50-99 |
Calibrated Leaks and vacuum leak testing systems |
| Analysis and Measurement Services Corp. (AMS) |
Knox |
50-99 |
Qualifying the instrumentation and control systems of nuclear power plants through laboratory and in-plant testing services and specialized testing equipment and advanced monitoring technologies |
| Emerson Process Management |
Knox |
50-99 |
Development of software/hardware products for predictive/protective maintenance and vibration analysis equipment |
| Northrop Grumman Remotec |
Anderson |
50-99 |
Manufactures mobile robotic systems for inspecting and defusing explosives and other hazardous duty operations |
| Cryomagnetics |
Anderson |
50-99 |
Design and development of superconducting magnets, cryogenic systems, control electronics |
| Uster Technologies |
Knox |
50-99 |
Design, manufacture, install precision measuring instruments used for quality measurement and certification for the textile industry |
| Perceptics |
Knox |
50-99 |
Automatic license plate readers and other vehicle recognition equipment |
| Technology for Energy Corp. |
Knox |
50-99 |
Aircraft and helicopter on-the-wing ground support equipment, equipment for electric power metering, power quality, revenue protection of the electric power industry, monitoring equipment for nuclear power plants, X-ray diffraction analyzers |
| MS Technology |
Anderson |
50-99 |
Microwave industrial heating equipment including metal melting/casting furnaces and fluidized bed heat treating equipment |
| Cubic Transportation Systems/GRIDSMART |
Knox |
20-49 |
Traffic management system deploying proprietary technology and software. |
| Proton Power |
Loudon |
20-49 |
Manufactures a patented renewable energy system that utilizes renewable biomass and waste sources to generate electricity, heat, synthetic fuels, hydrogen |
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| Source: Book of Lists; Local County websites, Database USA 2025 |
