| European Electronics Ltd | Staffordshire |
| European Electronique Ltd | Oxfordshire |
| European School of Economics | |
| European Spaceflight Ltd | |
| Europlus Direct Ltd | West Yorkshire |
| Euroquartz Ltd | Somerset |
| Eurosoft (Leeds) Ltd | West Yorkshire |
| Eurosoft (UK) Ltd | Dorset |
| Eurosoft Tech Ltd | |
| Eurospace Resourcing Ltd | |
| EuroStat Ltd | Bedfordshire |
| Eurotech Computer Services Ltd | Surrey |
| Eurotime Systems | West Midlands |
| EuroVine IT Ltd | East Sussex |
| Eusoft Ltd | |
| Ev Dot Energy Ltd | |
| EV Magazine | |
| Eva.ai | |
| Evalest | |
| Evaris Solutions plc | Hertfordshire |
| Evariste | |
| Evarvest Ltd | |
| EVE Diving | |
| Evenlogic | Greater London |
| Event Connections | East Sussex |
| EventHQ | Dorset |
| Eventsforce Solutions Ltd | |
| Eventum Orthopaedics Ltd | |
| Eventure Internet | Nottinghamshire |
| Ever Increasing Circles Ltd | |
| Everest Biotech Ltd | |
| Evergreen Computing Ltd | Gloucestershire |
| Everledger | |
| Evermind Digital Ltd | |
| Everon Ltd | West Yorkshire |
| Evershed Robotics Ltd | Shropshire |
| Everstake | |
| Everthere | Dorset |
| Every | |
| Everyday Practical Electronics | East Sussex |
| Everyman Hosting | Dorset |
| Everyone | |
| Everything Digital Ltd | |
| Everything IT Ltd | |
| EverythingTech | |
| Evestia Clinical Ltd | |
| EvidentBD Ltd | |
| eView-Software | |
| Eviid | |
| Evisible | |