- Curamik Electronics - Offers ceramic printed circuit boards, metal-matrix composites for heat control applications, and cooling systems and more.
- Curtis Instruments - Involved in instrumentation, motor speed controllers & battery chargers in Northampton, United Kingdom.
- Cyclops Electronics Ltd - A dynamic electronic component distributor focussed on delivering outstanding service.
- Damian Srl - Offers vending equipment for snacks or pastries in Castellanza, Italy.
- DDM Hopt+Schuler - Specialized in electronics and precision mechanical design in Germany.
- E.ON AG - An integrated power and gas company in Düsseldorf, Germany.
- Eberspächer - Specialized in the development, production and sales of electrical heating systems as automobile original equipment.
- Eichenauer - Specialized in the development, production and sales of heating elements for manifold areas of use.
- Electrical Contractors' Association - UK trade association representing electrical, electronic, installation engineering and building services companies.
- Electricfor, S.A. - Offers flexible resistors, gas & liquids heating systems, custom made heating elements, thermostats and more in Barcelona, Spain.
- Electro Product Management Inc - Specialized in sales, test-laboratory, engineering, field engineering, parts management, and documentation development.
- Electrolux - Provides cookers and cooktops, ovens, fridges and freezers, dishwashers, washing machines, tumble dryers and vacuum.
- Elga - A specialized supplier of welding consumables and work is focussed on demanding customer segments.
- Elmet, spol. s.r.o. - Manufacturers of electronic devices including audio, video presenting technology, medical instruments and more.
- Elsys Electronic Systems - Specialized in the manufacturing of microwave products, in the range from 0,1-18GHz for ground, shipborne & airborne radars.
- Eltex Elektrostatik GmbH - Offers electrostatic systems & solutions for all kind of industrial sectors.
- EnerSys - A company offering motive power batteries or chargers in Zürich, Switzerland.
- Epcos AG - Develops, manufactures and markets electronic components, and focuses on leading-edge technology markets.
- Erich Jaeger Company - Provides wiring, plug-in connectors, electrical/electronic installations and trailer couplings for the automobile industry.
- Eurotel - Designs and develops systems and equipment for TV and radio broadcasting, low, medium and high power Transmitters.
- Excelsys Technologies Ltd. - A designer and manufacturer of high efficiency, low profile power supplies for a variety of specialist markets.
- Facon S.p.A. - Provides capacitors for power electronics, electrolytic capacitors for DC and AC applications & metallized film capacitors.
- Flamar S.r.l. - Makers of cables for electronics and computers, audio and video systems, robotics, instrumentation, industrial process control systems.
- Flextronics International - Designs, builds & ships electronics products for OEMs in the aerospace, automotive, computing & more.
- Glen Dimplex Group - Specialized in the manufacture and distribution of electric heating appliances in Dublin.
- Goepel Electronic GmbH - Develops and manufactures intelligent automated optical inspection, automotive test & boundary scan solutions.
- Harting Technology Group - Operates in the fields of electrical, electronic and optical connection, transmission and networking.
- HERZ Armaturen Ges.m.b.H. - An international producers of thermostatic radiator valves and heating and pipe fittings.
- Hilkar Electrotechnics Ltd, - Manufactures switchgears for low and medium voltage systems.
- Hirschmann - Offers electronic control systems, industrial connectors and more.
- Hitachi Europe GmbH - Sells inverters, PLC, servo drives, operator panels and continuous ink jet printer.
- HT S.p.a - Manufactures on demand a range of heating elements, controls and accessories for industrial and domestic applications in Susegana.
- HTM srl: Design and Production of electrical vehicle - Company HTM s.r.l. was founded to develop the main idea of its Chairman: to project and manufacture light electric vehicle at high efficiency.
- Hydor - Offers a range of equipment for aquariums and ponds.
- Icfind Co. Ltd - A supplier of production quantities of electronic and electrical components.