Continuing to Grow. Continuing to Lead.
Over the past 75 years, SOR Controls Group has evolved from humble beginnings into a globally recognized control instrumentation manufacturer specializing in the design and manufacturing of electronic and mechanical instrumentation for measuring pressure, temperature, level, and flow. Not content to stop there, we became an established expert in grab sampling systems.
Headquartered in Lenexa, Kansas, we’ve been expanding our presence by adding regional offices in Beijing, China and Dubai, United Arab Emirates, as well as a manufacturing facility in Houston, Texas. At the heart of our growth is a commitment to producing quality products and making the complex simple.
SOR Controls Group actively serves all sectors of the process industry and has significant experience with the Oil & Gas, Petrochemical, Chemical, and Power segments. When you work with our team, you get the guarantee of reliable solutions that are delivered quickly, backed by superior customer service, and industry leading warranties.
SOR Controls Group History
Click on a year to explore our 75+ year story.
Roy Dunlap starts MechniArts, a machine shop, with $2,000 from the Navy for his service during WWII.
MechniArts develops and manufactures in-flight tray tables to serve hungry passengers on TWA Airlines.
Roy Dunlap and University of Kansas Physics professor Ben Brown invent the static-o-ring pressure switch.
MechniArts changes its name to Static O Ring to capitalize on the brand name of their successful pressure switch.
SOR introduces a new line of temperature switch products.
Static O Ring changes its name to SOR to reflect a growing product line that is not dependent on the static-o-ring technology.
SOR introduces Nuclear Qualified Pressure Switches for the nuclear power generation industry.
SOR Acquires Magnetic Sensing Waves (MSW) a mechanical-level manufacturing company.
Introduces the 711 ULS Single Point Ultrasonic Level Switch for a wide array of uses in liquid-level applications.
SOR achieves ISO 9000 certification making it one of the first manufacturers to receive this certification in Kansas.
SOR introduces the 651 RF Admittance Single Point Level Switch to detect the level of liquids, slurries, granulars, and solids.
SOR introduces the 701 ULS Single Point Ultrasonic Level Switch for a wide array of uses in liquid-level applications.
SOR opens a regional sales office in Beijing, China.
SOR was named one of the top machine shops in the United States.
SOR introduces the 805PT Compact Pressure Transmitter.
SOR receives Safety Integration Level (SIL) certification for mechanical pressure and level products.
SOR acquires Smart Sensors (SSi), a manufacturer of temperature sensors in Houston, Texas.
SOR introduces the 805QS Compact Pressure Switch-Transmitter.
SOR introduces the 815PT Smart Compact Pressure Switch-Transmitter.
SOR acquires SETEX Products, a manufacturer of thermowells in Beaumont, Texas as a vertical integration to complement the SSi temperature sensors.
SOR opens a regional sales office in Dubai, United Arab Emirates.
SOR introduces the 815DT Smart Compact Differential Pressure Switch-Transmitter.
SOR opens a regional sales office in Chenai, India.
SOR establishes SENSOR Sampling Systems, a manufacturer of closed-loop grab sampling systems, based in Houston, TX.
SOR Measurement & Control introduces the 1100 Series Magnetic Level Indicator with a patented 200 degree viewing angle (U.S. Pat. No. 14/638,990 vista™).
Following the acquisition of SSi and SETEX and the establishment of SENSOR Sampling Systems, SOR changes its name to SOR Measurement & Control and establishes SOR Controls Group as the parent company for these associated brands.
SOR Measurement Control introduces the 1010 Flushing Rings.
Further expansion of the 800 Series Pressure Transmitter line happens with the release of the 815LT Submersible Pressure Transmitter.
SENSOR introduces RSS Sampling System and CONCENTRIC Needle system.
SENSOR introduces the HPSS Heavy Product Sampling System for collecting samples of hot, heavy liquids.
SOR introduces 1800 Series Conventional Pressure Transmitters.
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For decades, SOR Controls Group has provided unique solutions for a variety of industries. Use our Product Selector and explore how our high-quality products can solve even your most challenging applications.