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| 434509SP | K0082 | HELMET INTEGRATED SYSTEMS LTD |
| 9206085 | K4468 | R E L LTD |
| 928086 | K6111 | QIOPTIQ LIMITED |
| 53PSW90161A00 | K7253 | BOOKHAM TECHNOLOGY PLC |
| 660-04-811102-208-36 | U2982 | BAE SYSTEMS DEFENCE SYSTEMS LTD |
| 938420/02508 | K0268 | RAYTHEON SYSTEMS LIMITED |
| 991/4/02029/085 | K0668 | LEONARDO UK LTD |
| BS4183SMMCFCSL02-5X008CR4000NT | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| BS4183-TABLE 2 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS4183SMMCFCSL02-5X008CR4000NT | K9090 | MINISTRY OF DEFENCE |
| 9724038 | U0434 | MORGANITE ELECTRONIC INSTRUMENTS LTD |
| 991/4/02029/085 | U2248 | SELEX ELSAG LTD |
| 991/4/02029/085-C | U2982 | BAE SYSTEMS DEFENCE SYSTEMS LTD |