| | Telecom Connect Limited |  | Suite 33, 21 Barker Gate, Nottingham, Nottinghamshire, NG1 2JU tel: 08000157850 |
| | Komtech Ltd |  | London Road, Headington, Oxford, Oxfordshire, OX3 9EH tel: 01865 763377 |
| | A D Horner Limited |  | 51 Bridge Street, Pershore, Worcester, Worcestershire, WR10 1AL tel: 01386 555486 |
| | Boreham Welsh Ltd |  | Unit 8, Standingford House, 26 Cave Street, Oxford, Oxfordshire, OX4 1BA  |