The below list includes entrants and attendees of past Elektra Awards:
| 514 Media Ltd |
| Abracon |
| Advantech |
| Altium |
| AMD |
| AMPHENOL |
| ams |
| AMS Spectral UV |
| Analog Devices |
| Anglia |
| Arm |
| Armitage Communications |
| Arrow |
| Artesyn |
| Arylabs |
| Avnet |
| Avnet Abacus |
| Avnet Silica |
| AVX |
| Axiom Manufacturing Services |
| Axis |
| Beryl |
| Beverley Morris and Co Solicitors |
| Black Dox |
| Blu Wireless Technology |
| BlueBadger |
| Bourns |
| BT |
| BWW Communications |
| ByteSnap Design |
| Cadence Design Systems |
| Catapult |
| Ccel |
| CircuitBuilder |
| CMR Surgical |
| Component Master Ltd |
| Components in Electronics |
| Compound Semiconductor Applications Catapult |
| Context |
| CUI |
| Custom Interconnect Ltd |
| Cyber Security Challenge UK |
| Cypress Semicondutor |
| Data Team |
| DataQuest Solutions Ltd. |
| Digikey |
| Digital Catapult |
| Dyson |
| Eagle Labs |
| Edwards |
| Efficient Power Conversion Corporation (EPC) |
| Electronic Components Supply Network |
| Electronic Specifier |
| Ensilica |
| ETES - Southern Manufacturing & Electronics |
| Farnell |
| Future Facilities |
| GaN Systems |
| Gemini Marketing |
| Global Invacom |
| Golin |
| Gooe |
| Grand Bridges |
| Greenliant |
| Hardware Pioneers |
| HARTING |
| Harwin |
| He-Man Dual Controls Ltd |
| Icomera UK |
| Ignys Ltd |
| Imagination Technologies |
| Indra Renewable Energy |
| Inductosense |
| Intel PSG |
| Intelligent Distributed Controls' (IDC Derby) |
| ISDI Ltd |
| Ismosys |
| ITECH |
| Jacarem |
| KAVX |
| Kemet |
| Keysight Technologies |
| Kigen UK Limited |
| Lattice Semiconductor |
| Leyton UK |
| Littlefuse |
| LLC R-NOX |
| LMD |
| Lynx Software Technologies |
| Magnetic Systems Technology Ltd |
| Mainly Marketing |
| Market Traction International Ltd |
| Marvell |
| Mascarenhas PR Ltd |
| Maxim Integrated |
| Maxlinear |
| MediaTek |
| Melexis |
| Mentor, a Siemens Business |
| Micro:bit Educational Foundation |
| Microchip |
| Micron |
| Microsemi |
| Microsolve Recruitment |
| Molex |
| Moortec |
| Mornsun |
| Mouser Electronics |
| Murata |
| Nanusens Ltd |
| Napier |
| Neesham |
| Nestlé UK&I |
| Nexperia |
| Nicomatic |
| Nordic Semiconductor |
| NXP Semiconductors |
| Octavo Systems |
| OEM Secrets |
| OMC |
| Omron Electronic Components Europe B.V |
| onsemi |
| On-Systems |
| OSI Panasonic |
| P2i PEI-Genesis Ltd |
| Panasonic Industry Europe GmbH |
| Peratech |
| Pico Technology |
| Picocom |
| Plessey Semiconductors Ltd |
| Power Integrations |
| Powerbox International AB |
| PPM Power |
| Premier Farnell |
| Princeps |
| Prototype Electronics Ltd and Southern Manufacturing Electronics Ltd |
| Publitek |
| Pulsiv |
| Quantum Power Transformation Ltd |
| Quectel Wireless Solutions |
| Rapid Electronics |
| Raspberry Pi |
| Red Pitaya |
| Red Tree Solutions |
| Redpines |
| Renesas Electronics |
| Renishaw |
| Rohde & Schwarz |
| Rohm Semiconductor GmbH |
| Rolls-Royce |
| RS Components |
| RS Group Plc |
| RUTRONIK Electronics Worldwide |
| SamacSys |
| Samsung Electronics |
| Samsung Semiconductor Europe |
| Secure Thingz |
| SemiKron |
| Sensor City |
| Sensuron |
| Siccar |
| Siemens Digital Industries Software |
| Siemens EDA |
| Sifive |
| Silica |
| Silicon Labs |
| Siretta |
| Smiths Interconnect |
| SMS |
| Socionext Europe GmbH |
| Sourcing Bot |
| Spacechips Ltd. |
| Spectrum Instrumentation |
| Startupbootcamp IoT |
| STMicroelectronics Limited |
| Stone Junction |
| Supply Frame |
| Sure Petcare |
| Susuvo |
| Swindon Silicon Systems |
| Synaptics |
| Synopsys |
| T&M Business Development Manager |
| TDK |
| TE Connectivity |
| TechUK |
| Tektronix UK Ltd |
| Texas Instruments |
| Thalia Design Automation |
| The Hoffman Agency |
| The University of Manchester |
| TKO Marketing Consultants |
| Toshiba Electronics Europe |
| Trier & Company |
| TTI Inc |
| Ultrahaptics |
| UltraSoC Technologies Limited |
| UnitedSiC |
| University of Bristol |
| University of Hertfordshire |
| University of Kent |
| University of Southampton |
| VCC – Visual Communications Company |
| VCHRGD |
| Vicor |
| Vishay |
| Vitis PR |
| VNC Automotive |
| Vortex PR |
| WFS Technologies Ltd |
| Wildfire PR |
| WISEBATT |
| Wittra Networks AB |
| Working Word |
| Xilinx |
| XMOS Ltd |
| XP Power |
| Yageo |
| Zero Point Motion |
| ZofzPCB |