| 18-003-06 | K8179 | FAIREY ELECTRONICS LTD |
| 18-003-06 | U2180 | RACAL COMSEC LTD |
| 23501-114 | K0835 | QINETIQ LTD |
| 23501-114 | K1488 | BRITISH AEROSPACE PLC NAVAL AND ELECTRONIC SYSTEMS DIVISION |
| 25258-419 | U0146 | MEGGER LTD |
| 23501-114 | U6441 | ATLANTIC INERTIAL SYSTEMS LIMITED |
| 5AA70264 | K0361 | THORN E M I ELECTRONICS LTD |
| 3801-4314-001 | K0656 | BAE SYSTEMS (OPERATIONS) LIMITED |
| 3AQC28-49 | K0656 | BAE SYSTEMS (OPERATIONS) LIMITED |
| 533209J | K0656 | BAE SYSTEMS (OPERATIONS) LIMITED |
| 59-3PT6 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| 397-679539 | K6984 | DEFENCE LOGISTICS AGENCY |
| 829537 | U1940 | CINTEL INTERNATIONAL LIMITED |
| 5AA70264 | U4338 | THALES UK LIMITED DBA THALES UK LTDDEFENCE MISSION SYSTEMS |
| C0M1718 | K0100 | MEGGITT (UK) LIMITED |
| B24794-001 | K0233 | THALES OPTRONICS LIMITED |
| H2101B | K0536 | HARWIN PLC |
| H2101B01 | K0536 | HARWIN PLC |
| K397-679539 | K6984 | DEFENCE LOGISTICS AGENCY |
| PTP2101HB | K8206 | SEDGEWALL COMMUNICATION GROUP LTD |
| PTP2101HB | U0459 | SEDGEWALL COMMUNICATION GROUP LTD |
| MVEE39294A3 | U0795 | QINETIQ |