GE offers an extensive line of thermistors such as NTC epoxy thermistors, SMD thermistors, NTC glass thermistors, radial leaded NTC thermistors, and PTC thermistors. The NTC epoxy thermistors are offered as interchangeable thermistors and type RL epoxy thermistors. SMD Thermistors are offered in 0402, 0603, 0805 and 1206 sizes. Radial leaded NTC thermistors feature wide resistance, beta and dimensional image.

Omega Engineering, Inc. delivers thermistors, thermistor probes, thermistor elements and thermistor sensors. Product line includes quick disconnect thermistor probes, general purpose thermistor probes, wall mount thermistor sensors, thermistor elements with lead wires, surface measurement thermistor elements, and precision and specialized thermistor probes.

Selco delivers NTC thermistors available in various styles such as epoxy, glass, thin film and surface mount, in a range of bead diameters of 0.019" to 0.095" and in customized options of materials, configurations, leads and connections. Product line includes diode type NTC thermistors, thin-film NTC thermistors, surface mount NTC thermistors, custom NTC thermistors, custome NTC thermistor probes, interchangeable NTC thermistors, NTC thermistors with bare leads, thermistors with insulated leads, NTC thermistors with bare leads, point matched NTC thermistors, surface mount chip thermistors and TR thermistor series.

Quality Thermistor, Inc. (QTI) manufactures both Positive Temperature Coefficient (PTC) thermistors, Negative Temperature Coefficient (NTC) thermistors, surface mount thermistors, leaded miniature thermistors, and military and space thermistors as well as NTC thermistor probes.

Fluke offers standard and secondary probe thermistors. The series of standard thermistors includes three models with a temperature range of 0 °C to 60 °C and two models with a temperature range of 0 °C to 100 °C. The series of secondary probe thermistors includes five models with a temperature range of 0 °C to 100 °C.

RTI Electronics, Inc. manufactures NTC and PTC thermistors. The line of NTC thermistors include the Surge-Gard thermistors, Disc & Chip style thermistors, Accu-Curve thermistors, surface mount thermistors, Mini-Sensor thermistors, probes and assemblies. The line of PTC thermistors includes standard PTC thermistors, PTC Over-temperature protectors, PTC Over-current protectors, silicon PTC thermistors, PTC thermistor probes, and special application probes and assemblies.

U.S. Sensor manufactures a variety of NTC thermistors, thermistor probes, and thermistor assemblies. Products related to thermistors include models of leaded thermistors, surface mount thermistors, UL recognized thermistors, calibrated thermistor probes, and inrush current limiting power thermistors.

Measurement Specialites offers high precision NTC thermistors, temperature probe assemblies and thermophiles including leaded thermistors and space qualified thermistors. Leaded thermistors include a range fo epoxy coated discretes, glass encapsulated thermistor components and polymide and mylar thermistor components.

AMWEI Thermistor is a manufacturer of PTC and NTC thermistors. Models of PTC thermistors include PTC heater/PTC liquid heater/PTC air heater, linear PTC thermistor/silicon temperature sensor, overcurrent protection in Telecom, switching lighting application, overload and over-current protection, temperature sensing protection, PTC motor starter, and degaussing circuit. Models of NTC thermistors include leaded/epoxy temperature measurement, axial glass package/high temperature measurement, inrush current limiter power thermistor, temperature measurement/compensation, temperature compensation/sensing/SMD type, temperature sensor probe assemblies, radial glass package/high temperature sensing, and epoxy/radial leaded/medical sensor.

Watlow develops sensor products including RTDs and thermisotrs. Its platinum resistance elements are made with controlled purity platinum wire and high purity ceramic parts. Features include a temperature range of -200°C (-328°F) to 650°C (1200°F), accuracy, sensitivity, standardization, interchangeability, and repeatability.

Durex Industries offers thermistor assemblies designed for temperature ranges up to 300°C  but can also be used in lower temperature applications. Housings can be manufactured of stainless steel, brass, or plastic. Thermistor elements can be customized with selected tolerances at specific temperatures for precision accuracy.

United Electric (UE) Controls provides thermistors that measure temperatures from -45° to 260° C (-50° to 500° F) with speed, high output and two-wire ohms measurement.