| Name | Region |
|---|---|
| Epic Signs | |
| epicX | |
| Epigos AI | |
| EpilepsyGTx | |
| Episode One | |
| Epistem Ltd | |
| ePitope Informatics Ltd | Northumberland |
| EpiValence | |
| Epix Sytems Ltd | |
| EPLAN Competence Centre | South Yorkshire |
| Eploy | Worcestershire |
| EPM Bus Solutions Ltd | |
| epm.agency | |
| Epoch BioDesign Ltd | |
| Epoq IT Ltd | Buckinghamshire |
| Epoq Legal Ltd | Hertfordshire |
| EPOS | Worcestershire |
| Epos Company | Greater London |
| Epsilis Ltd | Norfolk |
| Epsilogen Ltd | |
| Epsilon Engineering Ltd | Kent |
| Eptica | Berkshire |
| EPX Ltd | Staffordshire |
| Eqela | |
| EQL Ltd | |
| Equate Digital | Leicestershire |
| Equate Scotland | |
| Equator (Scotland) Ltd | |
| Equator Africa UK, LLP | |
| Eque2 | |
| Eque2 | |
| Eque2 Ltd | |
| Equifax Ltd | |
| Equilibrium Security | |
| EquiLoomPRO | |
| Equinet Media | |
| Equiniti-ICS Ltd | Belfast |
| Equinox | |
| Equinox Information Services Ltd | Greater London |
| Equinox Training Solutions | Northamptonshire |
| Equip Systems Ltd | Bedfordshire |
| Equiphase Ltd | West Midlands |
| Equisys Ltd | |
| Equitix Ltd | |
| Equity Networks Ltd | |
| Equity Ventures Ltd | Gloucestershire |
| EQV (UK) Ltd | Leicestershire |
| Eqvi Ltd | |
| Erbo | |
| ERGOMED Group |