| Company name | Category |  | 
              
                | H Tinsley | Stand-alone instruments |  | 
              
                | H-Squared Electronics | Batteries and chargers |  | 
              
                | H2I Technologies | Switches and keyboards |  | 
              
                | Habey | Embedded computing and control |  | 
              
                | Habia Cable Group | Cables and wires |  | 
              
                | Hacker-Datentechnik | Board-level instruments |  | 
              
                | Hall Research Technologies | Networking hardware |  | 
              
                | Hamamatsu Photonics | Sensors and data acquisition |  | 
              
                | Hammond Electronics | Handheld and other small enclosures |  | 
              
                | Hantarex | Monitors |  | 
              
                | Hantro | Embedded software and operating systems |  | 
              
                | Hardent | Electronics manufacturing services |  | 
              
                | Hardi Electronics | Design and development hardware |  | 
              
                | Harland Simon UPS | UPSs |  | 
              
                | Harmonic Software | ATE systems |  | 
              
                | Hart Coating Technology | Electronics manufacturing materials |  | 
              
                | Hawco | Stand-alone instruments |  | 
              
                | Hawco Direct | Circuit protection devices |  | 
              
                | HCV Wireless | Wireless communications |  | 
              
                | HD Lab | Design services |  | 
              
                | HDL Works | Design and development software |  | 
              
                | HDP User Group | Recruitment, reports, resources |  | 
              
                | Head Acoustics | Compliance engineering |  | 
              
                | Hectronic | Embedded computing and control |  | 
              
                | Heidelberg Instruments | IC and hybrid processing equipment |  | 
              
                | Heim Data Systems | Sensors and data acquisition |  | 
              
                | Helapet | Electronics manufacturing, packaging |  | 
              
                | Hello Soft | Embedded software and operating systems |  | 
              
                | Helping Hand Software | Embedded software and operating systems |  | 
              
                | Hemisphere GPS | Wireless communications |  | 
              
                | Hendon Semiconductors | Power-supply ICs and controllers |  | 
              
                | Henkel Loctite Adhesives | Electronics manufacturing materials |  | 
              
                | Heraeus Sensor Technology | Sensors and data acquisition |  | 
              
                | Hesse and Knipps | IC and hybrid processing equipment |  | 
              
                | Hevday Logic | Design and development hardware |  | 
              
                | Hewlett Packard | Industry news |  | 
              
                | Hi-Tech | Boards and backplanes |  | 
              
                | HID | Embedded computing and control |  | 
              
                | Hier Design | Design and development software |  | 
              
                | High-Tech Conversions | Electronics manufacturing materials |  | 
              
                | Highland Technology | Board-level instruments |  | 
              
                | Hillstone Products | ATE systems |  | 
              
                | Hirose Electric | Plugs and sockets |  | 
              
                | Hirschmann Electronics | Networking hardware |  | 
              
                | Hitachi | Microprocessors, microcontrollers and DSPs |  | 
              
                | Hitachi Cable | Cables and wires |  | 
              
                | Hitachi Display Products | LCD modules |  | 
              
                | Hitachi High Technologies | Stand-alone instruments |  | 
              
                | Hitachi High Technologies - Electronic Components | Analogue and mixed-signal ICs |  | 
              
                | Hitaltech | Cables and wires |  | 
              
                | Hitec Sheet Metal | Floor-standing racks, cabinets, enclosures |  | 
              
                | Hiteg | Design and development hardware |  | 
              
                | Hitek | Stand-alone instruments |  | 
              
                | Hitek Electronic Materials | EMC components |  | 
              
                | Hitek Power | AC/DC power supplies |  | 
              
                | Hitex Development Tools | Design and development hardware |  | 
              
                | Hoffman | Floor-standing racks, cabinets, enclosures |  | 
              
                | Holland Shielding Systems | Gaskets, seals and screens |  | 
              
                | Holotouch | Switches and keyboards |  | 
              
                | Holt Broadcast Services | Floor-standing racks, cabinets, enclosures |  | 
              
                | Holtek Semiconductor | Microprocessors, microcontrollers and DSPs |  | 
              
                | Holystone | Capacitors |  | 
              
                | Honda Connectors | PCB connectors |  | 
              
                | Honeywell Control Systems - Sensing and Control | Sensors and data acquisition |  | 
              
                | Honeywell Defense and Space Electronic Systems | Microprocessors, microcontrollers and DSPs |  | 
              
                | Honeywell Power Products | AC/DC power supplies |  | 
              
                | Hongfa | Electromechanical components |  | 
              
                | Hopling Technologies | Wireless communications |  | 
              
                | Horiba Jobin Yvon | Optoelectronics |  | 
              
                | Horizon Semiconductors | Communications ICs (wired) |  | 
              
                | Horizon Technology | Touchscreens and touch sensors |  | 
              
                | Horstmann Controls | Industry news |  | 
              
                | Huawei Technologies | Networking hardware |  | 
              
                | Huber and Suhner | Plugs and sockets |  | 
              
                | Hueggenberg | Exhibitions, courses, conferences, training |  | 
              
                | Hulasi Metals | Floor-standing racks, cabinets, enclosures |  | 
              
                | Humiseal | Electronics manufacturing materials |  | 
              
                | Hunt Engineering | Embedded computing and control |  | 
              
                | Hunter Cable Assembly | Cables and wires |  | 
              
                | Huntsman Advanced Materials | Electronics manufacturing materials |  | 
              
                | HVVI Semiconductors | Discrete power devices |  | 
              
                | Hybricon | Instrument cases, benchtop, wall-mounting enclosures |  | 
              
                | Hybrid Graphics | Embedded software and operating systems |  | 
              
                | Hyperformix | Design and development software |  | 
              
                | Hypertransport Consortium | Recruitment, reports, resources |  | 
              
                | Hypres | Communications ICs (wireless) |  | 
              
                | Hyptra | Antennas and feeders |  | 
              
                | Hytec Electronics | VMEbus boards, assemblies |  | 
              
                | Hytek Automation | Sensors and data acquisition |  |