| Teddington Controls Ltd. http://www.tedcon.com/ Manufacture of pressure, temperature, and flow rate control products, and electronic control systems. | |
| Tateyama Electronics Corp. http://www5.ocn.ne.jp/~tateyama/telemetrysys/en/ Manufacturer of the wireless telemeter equipment. | |
| TTK UK Ltd http://www.ttkuk.com/ Offers a range of sensing cables, digital central units and accessories that detect leaks. | |
| TOSS GmbH http://www.toss.de/ Manufactures sensors for temperature, air humidity, air pressure, precipitation, wind velocity and direction, global radiation, density of light, and UV radiation. | |
| T.W. MacKay & Son http://www.twmackay.com/ Suppliers of industrial instrumentation and process control equipment in the province of British Columbia. Suppliers of food processing and packaging machinery in the western Canadian provinces of British Columbia, Alberta, Saskatchewan, and Manitoba. | |
| Systematic Controls Corporation http://www.systematiccontrols.com/ Manufacturer of industrial control instruments, ultrasonic level measurement and pressure measuring instruments. | |
| Syscon Instruments http://www.sysconinstruments.com/ Manufactures leak detectors, load cells, pressure cells, LVDT, displacement transducers and torque transducers. | |
| Synectic Design Ltd. http://www.synectic.co.uk/ Design and manufacture industrial process control and measurement instrumentation and systems. Products include amplifiers, batch controllers, portable load meters, data loggers, signal converters, and industrial displays. | |
| Sunsui Process Systems http://www.sunsuiprocess.com/ Process control and measuring instrumentation. | |
| Stroud Instruments Ltd. http://www.sil.co.uk/ Provides solutions in measurement, control, display, instrumentation. | |
| Strain Measurement Devices http://www.smdsensors.com/ Manufacturer of fluid switches, load cells, force sensors and pressure transducers. | |
| Stotz USA http://www.stotz-usa.com/ Designs, manufactures and sells pneumatic-electronic gauges and control devices. | |
| Stevens Water Monitoring Systems Inc. http://www.stevenswater.com/ Manufacture of water level sensors, water quality sensors, soil moisture sensors, water flow measurement, and basic weather monitoring sensors. | |
| Smith Systems Inc. http://www.smith-systems-inc.com/ Manufacturer of custom proximity, speed, Hall effect, motion, and temperature sensors and custom cabling. | |
| Skyl-Tech, Inc. http://www.skyltech.com/ Manufacture pressure/vacuum feedthroughs, design type T thermocouples, and offer thermal validation consulting and custom fabrication services. | |
| Silicon Designs, Inc. http://www.silicondesigns.com/ Manufacturer of micro-machined capacitive accelerometers, sensors, systems for acceleration measurement. | |
| Sigrist Photometer Ag http://www.photometer.com/ Manufacturers process photometers for continuous monitoring of safety, purity, quality optimization and control of all process steps. | |
| Showa Instrument Information co.ltd http://www.showa-kk.com/ Manufacturer of industrial flowmeters, level meters and automatic control equipment, based in Tokyo, Japan. In English and Japanese. | |
| Sherborne Sensors http://www.sherbornesensors.com/ Manufactures precision accelerometers and inclinometers for applications ranging from military, civil aviation, road, bridge and tunnel building, robotics and satellite communications. | |
| Serem http://www.serem-electronics.com/ Manufacturers of instruments for electrolysis industry, ammeter clamps and portable instruments. From France. | |
