- Britannia Heat Transfer Ltd
 - UK-based designer and manufacturer of heat exchangers and components for marine, petrochemical, power generation, and industrial applications. - Peter Evans (Bolton)
- Specialises in electrical surface heating projects.
- Radyne Group
- Offers induction process heating equipment and services, including wire, billet, and bar heating, power supplies, pipe heating, melting, and plastic welding.
- Strayfield Fastran
- Covers the radio frequency drying sector. Produces high frequency dielectric heating equipment for textile, paper converting, glass fibre, woodworking, and food processing.
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