| Elements Website Design | |
| Elemica | Oxfordshire |
| Eleos Life Ltd | |
| Elephant Crew Ltd | |
| Elephant Marketing Ltd | |
| Eleusis Holdings Ltd | |
| Elevara Medicines | |
| Elevate Marketing | |
| Elevate Web Ltd | Cardiff |
| Eleven Therapeutics | |
| ELF Ltd | Dorset |
| ELF Productivity Ltd | Greater Manchester |
| Elford Tech Repairs | |
| Elgg | Oxfordshire |
| Elica Ltd | |
| eLife Sciences Publications Ltd | |
| EligoChem Ltd | |
| Elijah Nathan | |
| Elite Business Services Ltd | North Yorkshire |
| Elite Electronics System Ltd | Fermanagh and Omagh |
| Elite Interfaces Ltd | Berkshire |
| Elite Ltd | Hampshire |
| Elite Systems | |
| Elitetele.com plc | Lancashire |
| Elixel Ltd | |
| Ellidiss Software | Cheshire |
| Ellipses Pharma | |
| Elliptic Enterprises Ltd | |
| Ellis Security Ltd | Cornwall |
| Elmeridge Cables Ltd | East Sussex |
| ELMS Creative | |
| Elmstone Systems Ltd | |
| Eloit | |
| ElpaTech Ltd | Hampshire |
| Eltek Ltd | Cambridgeshire |
| Eltek Systems Ltd | Cambridgeshire |
| Elucidat | |
| Elvie | Greater London |
| Elvikom Lab Ltd | |
| Elwood Technologies Services Ltd | |
| Ely Web Solutions | Cambridgeshire |
| Elysia | |
| Elysium Healthcare Ltd | |
| Elysium Ltd | East Sussex |
| Elzware Ltd | Bristol |
| EM Analytical | |
| EM Studios | |
| EMA Technology Ltd | |
| Emagine Consulting Ltd | |
| Email Blaster | Northamptonshire |