Omega Engineering designs and manufactures hermetically-sealed, linear immersion, "flag mount", bolt mount, and immersion thermistors. Also available are thermistor probes with PFA insulated cable, linear thermistor air temperature sensors,  and many others.

RTI Electronics Inc. manufactures PTC thermistors and NTC thermistors. The company's PTC thermistor line includes: standard PTC thermistors, silicon PTC thermistors, PTC thermistor probes, PTC over-temperature protectors, PTC over-current protectors, and PTC thermistors for custom applications. The NTC thermistor family includes: Surge Guard, disc and chip-style, Accu-Curve, surface mount, and mini-sensor-type thermistors. Both PTC and NTC thermistors are used for temperature measurement, temperature differential, temperature control, temperature compensation, time delay, and surge suppression within various industrial applications.

Measurement Specialities Inc. manufactures high precision NTC thermistors for medical and laboratory probe, military, aerospace, instrumentation, HVACR, appliance, and automotive applications. The company's line of thermistors includes: NTC leadless chip thermistors, NTC SMD thermistors, encapsulated NTC thermistors with leads, NTC space qualified thermistors, and precision NTC thermistors. Also offers are NTC thermistor probe assemblies including NTC surface temperature probes, NTC air-gas temperature probes, NTC liquid temperature probes, NTC HVACR temperature probes, and patient temperature monitoring probes.

GE Sensing & Inspection Technologies engineers NTC glass thermistors, NTC epoxy thermistors, SMD thermistors, radial-leaded NTC thermistors, and PTC thermistors for the measurement, control and protection of automobiles, medical devices, telecommunications systems, fluorescent lights, and domestic appliances.

AMWEI Thermistor Co. Ltd. manufactures through hole and SMD PTC and NTC thermistors. The company's PTC thermistors are used in over-current and overland protection, telecom, light switching, motor starting, temperature sensing and protection, and self-regulation heating applications. The NTC thermistors are available in either radial leaded, axial leaded or surface mount configurations.

Thermometrics supplies a number of NTC thermistor and PTC thermistor types. The line of NTC thermistor types includes: interchangeable, epoxy coated chip, glass encapsulated, uncoated disc with radial leads, disc with radial leads, disc for inrush current limiting, unleaded disc, surface mount chip, glass encapsulated surface mount chips, bare bead, glass coated bead, glass encapsulated bead and chip, and high temperature. Over temperature protection, over current protection, self-regulating heater, and liquid level sensing comprise the four PTC thermistor types.