| Ultimodule Inc 556 E. Wendell Dr Sunnyvale, CA,94089-2107 USA | Machine Vision , Software | |
| Ultra Motion 22355 Route 48 Cutchogue, NY,11935 USA | Linear Actuator | |
| Universal Robots A/S Sivlandvænget 1 Odense S, ,DK-5260 Denmark | Robotics | |
| University of Cincinnati College of Engineering and Applied Science Cincinnati, OH,45221 USA | Training | |
| UQM Technologies Inc 4120 Specialty Place Longmont, CO,80504 US | Brushless DC Motor | |
![]() | US Digital Corporation 1400 NE 136th Ave Vancouver, WA,98684 United States | Absolute Encoder , Linear Encoder , Inclinometer , Cable , Incremental Encoder , Couplings , Optical Encoder , Stepper Motor , Rotary Encoder , Resolvers , Servo Drive Amplifier , Web-Based |
| UDT Instruments 727 South Wolfe Street Baltimore, MD,21231 USA | Motion Sensors | |
| Unico, Inc 3725 Nicholson Road Franksville, WI,53126-0505 USA | Motor Control | |
| Unitorq Engineers Pvt. Ltd. 8-B,SAHELI MARG Udaipur, ,313001 India | Components | |
| Universal Thread Grinding Company 30 Chambers Street Fairfield, CT,06430 USA | Linear Motion | |
| University of Michigan College of Engineering 153 Chrysler Center Ann Arbor, MI,48109 USA | Training | |
| US EuroteK, Inc 23561 Ridge Route Laguna Hills, CA,92653 USA | Piezoelectric |









