| Company name | Category |  | 
              
                | W and W Communications | Communications ICs (wired) |  | 
              
                | Wacom Components | Touchscreens and touch sensors |  | 
              
                | Wadsworth Electronics | Cables and wires |  | 
              
                | Wago | Terminals and power |  | 
              
                | Waldmann Lighting | Electronics manufacturing materials |  | 
              
                | Waldom Electronics | Capacitors |  | 
              
                | Walters | Electronics manufacturing services |  | 
              
                | Walters OEP | Power supplies |  | 
              
                | Warth | Gaskets, seals and screens |  | 
              
                | Warwick Control Technologies | Networking hardware |  | 
              
                | Warwick Manufacturing | Embedded computing and control |  | 
              
                | Warwick Test Supplies | Plugs and sockets |  | 
              
                | Warwick Wireless | Wireless communications |  | 
              
                | Wasatch Photonics | Optoelectronics |  | 
              
                | Wasp | Touchscreens and touch sensors |  | 
              
                | Watchlink GSM | Wireless communications |  | 
              
                | Wavecom | Wireless communications |  | 
              
                | Wavesat | Communications ICs (wireless) |  | 
              
                | Waytronx | Heatsinks and thermal management |  | 
              
                | WBC | Microprocessors, microcontrollers and DSPs |  | 
              
                | Web-Feet Research | Exhibitions, courses, conferences, training |  | 
              
                | Webb Industries | Circuit protection devices |  | 
              
                | Weidmuller | Terminals and power |  | 
              
                | Welding Institute | Electronics manufacturing, packaging |  | 
              
                | Wells Research and Development | Stand-alone instruments |  | 
              
                | Welsh Electronics Forum | Recruitment, reports, resources |  | 
              
                | West Coast Engineering | Communications ICs (wired) |  | 
              
                | West Technology Research Solutions | Recruitment, reports, resources |  | 
              
                | Westdev | Design and development software |  | 
              
                | WF Electrical | Plugs and sockets |  | 
              
                | White Electronic Designs | Electronics manufacturing services |  | 
              
                | Whitney Blake | Cables and wires |  | 
              
                | Wi Boost | Wireless communications |  | 
              
                | Widevine Technologies | Design and development software |  | 
              
                | Wifi-Plus | Interconnection |  | 
              
                | Wilinx | Communications ICs (wireless) |  | 
              
                | William Hughes | Test accessories |  | 
              
                | Willow Technologies | Electromechanical components |  | 
              
                | Willtek Communications | Stand-alone instruments |  | 
              
                | Wilson Process Systems | Electronics manufacturing, packaging |  | 
              
                | Wimax Forum | Recruitment, reports, resources |  | 
              
                | Winbond Electronics | Memory devices and modules |  | 
              
                | Wind River Systems | Design and development software |  | 
              
                | Windale Technologies | Design and development software |  | 
              
                | Windmill Software | Sensors and data acquisition |  | 
              
                | Winsystems | Embedded computing and control |  | 
              
                | Wintegra | Communications ICs (wired) |  | 
              
                | Wipro-Newlogic | Intellectual property cores |  | 
              
                | Wireless Futures | Compliance engineering |  | 
              
                | Wireless Innovation Centre | Wireless communications |  | 
              
                | Wisair | Communications ICs (wireless) |  | 
              
                | Witech Embedded System | Design and development hardware |  | 
              
                | Wittenstein High Integrity Systems | Embedded software and operating systems |  | 
              
                | Wolfe Systems | Switches and keyboards |  | 
              
                | Wolfson Microelectronics | Analogue and mixed-signal ICs |  | 
              
                | Wood and Douglas | Wireless communications |  | 
              
                | Wordsworth Technology | Embedded computing and control |  | 
              
                | World Gold Council | Recruitment, reports, resources |  | 
              
                | World Micro Components | Embedded computing and control |  | 
              
                | World Star Technologies | Lasers |  | 
              
                | Worthy Design | Test accessories |  | 
              
                | WRL Consultancy | Design and development software |  | 
              
                | WTC Wicht Technologie Consulting | Recruitment, reports, resources |  | 
              
                | Wurth Elektronics | EMC components |  |