| Ebbon-Dacs Ltd | Oxfordshire |
| EBI Solutions Ltd | |
| eBiz Designs & Web Solutions Ltd | |
| eBoss Online Recruitment Solutions Ltd | Dorset |
| Ebotech Consulting Ltd | Greater Manchester |
| eBrands Global Ltd | |
| ebrik | |
| EBS (UK) Ltd | Northamptonshire |
| eBuilders | Norfolk |
| Ebury Partners UK Ltd | Greater London |
| eBusiness UK Ltd | Lancashire |
| Ebuyer UK Ltd | East Riding of Yorkshire |
| EC Computers | |
| EC Electronics Ltd | |
| EC-PC | Aberdeen |
| ECA Services Ltd | Berkshire |
| Ecatenate Ltd | Glasgow |
| ECCE | Kent |
| Ecce Media Ltd | |
| Eccel Technology | Leicestershire |
| eCentury Ltd | West Midlands |
| Echion Technologies Ltd | |
| Echo Internet Ltd | Suffolk |
| Echo Web Ltd | |
| Echo Web Solutions Ltd | |
| EchoApps360 | |
| EchoStar Mobile Ltd | |
| eChromatics | |
| Eckoh | Hertfordshire |
| Eclectic Designs | Highland |
| Eclectic Energy Ltd | Nottinghamshire |
| Eclipse Computing | |
| Eclipse Creative Consultants Ltd | |
| Eclipse Software Ltd | Greater Manchester |
| Eclipse Veterinary Software Ltd | |
| ECM Selection (Holdings) Ltd | Cambridgeshire |
| Eco & Tech | |
| Eco Hosting | |
| Eco SEO | |
| Ecofye Ltd | |
| eCom Learning Solutions | |
| eCom Scotland | Fife |
| Ecom Software | Belfast |
| Ecometrica | |
| ecommand | |
| Ecommerce Jobs | |
| eCommerce Website Design Ltd | West Midlands |
| eCommerce23 Ltd | |
| EcommerceShoppingCartSolutions.co.uk | |
| Ecommnet Technologies | |