| Name | Total Supplied | |
|---|---|---|
| Department for Transport | £667,343 | |
| IBM | £325,635 | |
| NERA UK LIMITED | £238,200 | |
| CORPORATE TRAVEL MANAGEMENT (NORTH) LIMITED | £231,028 | |
| CALDER CONFERENCES LIMITED | £171,288 | |
| Interserve (Facilities Management) Ltd | £142,840 | |
| NATIONAL AUDIT OFFICE | £95,000 | |
| KPMG | £77,156 | |
| MONTAGU EVANS LLP | £25,327 |