| Name | Region |
|---|---|
| Nourish | West Yorkshire |
| Nouveau Solutions | Berkshire |
| Nova Core Digital | |
| Nova IT Solutions | Kent |
| NovaBiotics Ltd | |
| Novacyt | |
| Novadata Tachograph Analysis Bureau Ltd | |
| NovaFori Ltd | |
| Novai Ltd | |
| NovalGen | |
| NovalGen Ltd | |
| Novalia | |
| Novasecta Ltd | |
| Novastar Ventures Ltd | |
| Novate | Nottinghamshire |
| Novatech Ltd | Hampshire |
| Novatura Ltd | |
| Novatus Global | |
| Noveeda | |
| Novella Satcoms Ltd | West Yorkshire |
| Noventiq Holdings plc | |
| Novi.Digital Ltd | Lancashire |
| Novobarn Agency | |
| Novocomms Ltd | |
| Novoda Ltd | |
| Novoic Ltd | |
| Novotronix Ltd | Staffordshire |
| NovusTech Consulting Ltd | |
| Now design | |
| NOW Design Ltd | Hertfordshire |
| Now Mobile | |
| Nowasys | |
| NP Projects Ltd | Cheshire |
| NPK Media | |
| NPL Management Ltd | |
| nPlan | Greater London |
| NRD Media Ltd | |
| NRG Digital | |
| NRG Therapeutics Ltd | |
| NS Group Software | |
| NS Optimum Ltd | Warwickshire |
| NSDesign Ltd | |
| nSpire | Lancashire |
| NSREEM | |
| NSSLGlobal Technologies | |
| NST.Agency | |
| NT Voice and Data Solutions Ltd | Nottinghamshire |
| NT-webspace | West Midlands |
| NTD Internet Solutions | East Sussex |
| Ntegra Ltd |