Tempco Electric Heater Corporation
- Manufacturer of heating elements and thermocouples . Products include cartridge heaters, band heaters, and cast-in heaters.
- http://www.tempco.com

Thermion Systems International, Inc
- USA. Custom design and manufacture of patented electrothermal surface heating systems for aerospace, industrial, consumer products and materials joining applications, from nickel coated carbon fibers laminated in various thermoplastic materials. Extensive
- http://www.thermion.com/

ATCT Ltd.
- Development, production, and marketing of advanced PTC electrical heating elements. Applications include use in domestic, industrial, automotive, aviation, military, and medical markets. Israel.
- http://www.atct.co.il

Heatex Ltd.
- Manufacturers of industrial electric heating equipment and controls for both safe and hazardous areas. Immersion, flow, overside, submersible, and fan assisted heaters in standard and explosionproof construction.
- http://www.heatex.co.uk/

I Squared R Element Company Inc.
- A manufacturer of silicon carbide heating elements and molybdenum disilicide heating elements.
- http://www.isquaredrelement.com/

Thermaglow Ltd.
- Manufacture and supply of electric heating elements. Product range includes: mineral, embedded tubular elements , open spiral, ceramic, flexible foil , heater cable and mica .
- http://www.thermaglow.co.uk

Infrared Internationale of North America, Ltd.
- Manufacture ceramic infrared heating elements and panels. The company are also distributors of infrared heaters for thermoforming and other industrial processing.
- http://www.infraredheaters.com/

Elmatic (Cardiff) Ltd
- Manufacturers of industrial heating elements. Products include include mica bands and plates, cartridge heaters, ceramic knuckle and cast ceramic heaters, cast aluminium or bronze heaters and coolers.
- http://www.elmatic.co.uk/