| Network (London) Ltd | |
| Network Attached Storage (UK) Ltd | Oxfordshire |
| Network Cable Solutions Ltd | |
| Network Critical Solutions Ltd | Berkshire |
| Network Design Solutions | Hertfordshire |
| Network Digital Communications Ltd | |
| Network Experts Internet Ltd | Oxfordshire |
| Network Installation Solutions Ltd | Lancashire |
| Network Knowledge | |
| Network Ltd | West Midlands |
| Network Neds | |
| Network Needs | Essex |
| Network Notepad | Bristol |
| Network ROI Ltd | |
| Network Sales & Marketing Ltd | West Yorkshire |
| Network Strategies Ltd | East Sussex |
| Network Support London Ltd | |
| Network Support Services | Cambridgeshire |
| Network Systems NSL | Staffordshire |
| Network Technologies & Associates Ltd | |
| Networked Computer Maintenance Ltd | Shropshire |
| Networked Planet Ltd | Bristol |
| NetworkIQ | |
| NetworkMods Ltd | Cambridgeshire |
| Networks First | West Midlands |
| Networks Unlimited | West Sussex |
| NetXtra Ltd | Suffolk |
| Netzen Solutions Ltd | Somerset |
| Netzoll | |
| Neu | Glasgow |
| Neu Ocean Technologies Ltd | |
| NeuCurrent Ltd | |
| Neudata Ltd | |
| Neueda | |
| Neujuice | East Sussex |
| Neural Capital Ltd | Surrey |
| Neural Soft Solutions | |
| Neural Technologies Ltd | Hampshire |
| NeuralRays AI | Greater London |
| NeuralSpace | |
| Neuro Innovations | Buckinghamshire |
| Neuro-Bio Ltd | |
| Neurocentrx Pharma Ltd | |
| Neurocess, Inc. | |
| Neurochase | |
| Neurochase | |
| Neurolaboratories Ltd | |
| Neurons Lab Ltd | |
| NeuroSolutions Ltd | |
| NeuroSolv Therapeutics | |