| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| A B Chance U K Ltd | 02198643 | 24/06/1997 | Dissolved |
| Adam Holdings Ltd | 02254648 | 24/06/1997 | Dissolved |
| BRYANS SMI LIMITED | 02256316 | 24/06/1997 | Dissolved |
| Crofthill Investments Ltd | 01285242 | 24/06/1997 | Dissolved |
| Elemec Systems (U K) Ltd | 02295155 | 10/11/2000 | Dissolved |
| Gai Communications Ltd | 02805380 | 10/11/2000 | Dissolved |
| Grelco Ltd | 00854486 | 24/06/1997 | Dissolved |
| Grelco Realisations Ltd | 00346085 | 24/06/1997 | Dissolved |
| HAWKE CABLE LIMITED | 00548563 | 01/03/2002 | Dissolved |
| Hubbell Lighting Ltd | 03650461 | 10/11/1998 | Dissolved |
| Hubbell Power Systems Ltd | 03879317 | 19/01/2000 | Dissolved |
| Oberman (Watford) Ltd | 00358382 | 24/06/1997 | Dissolved |
| Robinson Instruments Ltd | 00917257 | 21/08/2001 | Dissolved |
| Watford Electric Co Ltd | 00315584 | 24/06/1997 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CHALMIT LIGHTING LIMITED | 03665670 | 21/08/2001 | 01/12/2011 | Gold |
| GAI-TRONICS LIMITED | 05879175 | 16/10/2006 | 01/12/2011 | Gold |
| HAWKE CABLE GLANDS LIMITED | 05879163 | 16/10/2006 | 01/12/2011 | Gold |
| HUBBELL HOLDINGS LIMITED | 04316671 | 12/02/2002 | 01/12/2011 | One Red Flag |
| HUBBELL LIMITED | 00669157 | 24/06/1997 | 01/12/2011 | Amber |