| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Bramall (Laser Hire) Ltd | 01368614 | 17/01/1991 | Dissolved |
| Clarkson Lord & Co Ltd | 00939656 | 22/01/1991 | Dissolved |
| Clarkson,A,& Co Ltd | 00959980 | 22/01/1991 | Dissolved |
| Elks,D C,& Son Ltd | 00928160 | 22/01/1991 | Dissolved |
| Ellar Data Services Ltd | 02055463 | 21/01/1991 | Dissolved |
| Get Securities Ltd | 02324517 | 15/11/1991 | Dissolved |
| Goffin Evans & Co. Ltd | 01124286 | 31/10/1991 | Dissolved |
| Hall & Watts (Defence Sales) Ltd | 02062420 | 05/02/1991 | Dissolved |
| Hall & Watts (Developments) Ltd | 02419883 | 05/09/1991 | Dissolved |
| Hall & Watts (International) Ltd | 01272453 | 22/11/1991 | Dissolved |
| Hall & Watts (London) Ltd | 00149097 | 22/01/1992 | Dissolved |
| Hall & Watts (Management Services), Ltd | 01283098 | 21/01/1991 | Dissolved |
| Hall & Watts (Middle East) Ltd | 02095851 | 22/11/1991 | Dissolved |
| Hall & Watts Locators Ltd | 02504888 | 23/05/1992 | Dissolved |
| Hall & Watts Technical & Training Services Limited | 02698787 | 21/05/1992 | Dissolved |
| Lewis Instruments Ltd | 01320071 | 22/01/1991 | Dissolved |
| Milburn Enterprises Limited | 02444896 | 21/11/1991 | Dissolved |
| Site Instruments (Newcastle) Ltd | 01132074 | 17/01/1991 | Dissolved |
| Watts Instruments Ltd | 00351120 | 22/01/1991 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Agama Rugged Computers Ltd | 05098489 | 10/05/2004 | 28/02/2007 | Dissolved |
| Anglo Swiss Optical Co Ltd | 02509242 | 06/06/1991 | 28/02/2007 | Dissolved |
| HALL & WATTS (AFRICA) LIMITED | 02783872 | 09/02/1993 | 28/02/2007 | Dissolved |
| HALL & WATTS DEFENCE OPTICS LTD | 00464047 | 08/02/1992 | 20/01/2009 | Bronze |
| HALL & WATTS LTD | 01236664 | 22/01/1992 | 28/02/2007 | Dissolved |
| HALL & WATTS PROPERTIES LIMITED | 01922899 | 22/01/1991 | 20/01/2009 | Strike Off |
| LOGISTIC SERVICES & SPARES LIMITED | 03044825 | 01/05/1998 | 01/05/2004 | Dissolved |
| MAS ZENGRANGE LIMITED | 03113846 | 15/01/1998 | 28/02/2007 | One Red Flag |
| MCCARTHY TAYLOR SYSTEMS LIMITED | 02339960 | 21/01/1991 | 24/05/1995 | Silver |
| Zengrange Defence Systems Ltd | 02696360 | 04/09/1992 | 28/02/2007 | Dissolved |