PostCode Index - NP
| NP11 5AN | Axiom Manufacturing Services Ltd - Newport (Gwent) |
| NP11 7BH | Tyco Electronics UK Ltd - Identification - Newport (Gwent) |
| NP12 2DG | Aramec Ltd - Blackwood |
| NP15 1HY | Unite Technologies Ltd (EAG) - Usk |
| NP16 5LR | Velec Communications Ltd. - Chepstow |
| NP16 5PB | Ensigma Technologies Ltd - Chepstow |
| NP16 5PB | P M R Products Ltd. - Chepstow |
| NP16 6EA | Dobney Com - Chepstow |
| NP18 1AG | Intelligent Information Systems Ltd - Newport (Gwent) |
| NP19 7AA | AMK Technology Services Ltd - Newport (Gwent) |
| NP19 7AP | Apex Computer Services (Wales) Ltd. - Newport |
| NP20 1FU | T2 Group - Newport (Gwent) |
| NP23 8XA | Baytek Systems Ltd. - Ebbw Vale |
| NP23 8XA | Nasim Consulting Ltd - Ebbw Vale |
| NP25 4AJ | Janus Computers U K Ltd. - Monmouth |
| NP26 5PS | Ultrasound Technologies Ltd - Newport (Gwent) |
| NP26 5UG | Computer Troubleshooters - Newport (Gwent) |
| NP4 0DQ | DJJ Precision Engineering Ltd - Pontypool |
| NP4 0LS | Gwentech Electronic Services - Pontypool |