- Xenopus Systems
- 01594 862515 - Anchorage, Central Lydbrook, Lydbrook, Gloucestershire, GL17 9SB
- Rootkin Associates
- 0845 3736639 - Kempley Green, Kempley, Dymock, Gloucestershire, GL18 2BN
- Amteck
- 01594 564894 - 14 Severn View Road, Yorkley, Lydney, Gloucestershire, GL15 4SF
- Imagitec Ltd
- 0870 7574481 - 17 High Street, Lydney, Gloucestershire, GL15 5DP
- Helyx Secure Info Systems
- 01531 670215 - Tipsgrove Fm, Pixley, Ledbury, Herefordshire, HR8 2RW
- Infosafe
- 01531 638910 - Richmond Villa, New Street, Ledbury, Herefordshire, HR8 2EB
- EBS Computer Services
- 01531 637319 - 6 Kempley Brook Drive, Ledbury, Herefordshire, HR8 2FJ