| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| G&R WRENN LIMITED | 10668750 | 14/03/2017 | Silver |
| H.R.C.A (SALES) LIMITED | 11218897 | 26/06/2023 | One Red Flag |
| H.R.C.A. LTD | 11146345 | 26/06/2023 | Silver |
| INSTITUTION OF ELECTRONICS(THE) | 00304499 | 21/09/2022 | Amber |
| PEAK INTERCONNECT LTD | 03313126 | 27/11/2020 | Dissolved |
| PEAK PHOTONICS LIMITED | 04755947 | 10/11/2020 | Dissolved |
| PEAKCO LIMITED | 06186995 | 27/03/2007 | Gold |
| Peak Meshtronic Ltd | 03287468 | 01/06/1997 | Dissolved |
| Peak Meshtronic Ltd | 03287468 | 07/11/2001 | Dissolved |
| STOPFORD WORKSHOP LIMITED | 06326938 | 17/10/2012 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Biolustre (Northern) Ltd | 06337351 | 08/08/2007 | 24/09/2007 | Dissolved |
| Blazar Ltd | 05718284 | 22/02/2006 | 18/05/2006 | Dissolved |
| DISCRETE TIME COMMUNICATIONS (UK) LIMITED | 04389630 | 13/03/2002 | 09/05/2008 | Bronze |
| DISCRETE TIME COMMUNICATIONS (UK) LIMITED | 04389630 | 14/09/2011 | 31/05/2020 | Bronze |
| ENVIROTEKNICAL LIMITED | 05718272 | 22/02/2006 | 29/06/2006 | Dissolved |
| H.R.C.A (SALES) LIMITED | 11218897 | 26/06/2020 | 30/04/2022 | One Red Flag |
| H.R.C.A. LTD | 11146345 | 26/06/2020 | 30/04/2022 | Silver |
| LAZY GAMES STUDIO LIMITED | 06868377 | 02/04/2012 | 13/05/2014 | Dissolved |
| LEARNING SUPPORT LIMITED | 06000861 | 16/11/2006 | 18/03/2008 | Dissolved |
| MULTIPLEX PHOTONICS LIMITED | 04360097 | 30/01/2002 | 25/01/2004 | Dissolved |
| MULTIPLEX PHOTONICS LIMITED | 04360097 | 12/03/2002 | 25/01/2004 | Dissolved |
| PEAK INTERCONNECT LTD | 03313126 | 03/05/2001 | 25/02/2008 | Dissolved |
| PEAK INTERCONNECT LTD | 03313126 | 03/05/2001 | 15/03/2008 | Dissolved |
| PEAK MANUFACTURING LTD | 03303066 | 17/01/1997 | 25/02/2008 | Dissolved |
| PEAK MANUFACTURING LTD | 03303066 | 17/01/1997 | 15/03/2008 | Dissolved |
| PEAK PHOTONICS LIMITED | 04755947 | 08/05/2003 | 09/05/2008 | Dissolved |
| PEAK PHOTONICS LIMITED | 04755947 | 08/05/2003 | 31/12/2007 | Dissolved |
| Peak Navigation Ltd | 06403592 | 18/10/2007 | 01/04/2008 | Dissolved |
| Podlite Ltd | 05181729 | 16/07/2004 | 31/12/2006 | Dissolved |
| Proven Systems Ltd | 05897674 | 07/08/2006 | 17/06/2008 | Dissolved |
| STOPFORD WORKSHOP LIMITED | 06326938 | 27/07/2007 | 17/04/2008 | Dissolved |
| Staccato (Europe) Ltd | 05605497 | 27/10/2005 | 09/05/2008 | Dissolved |
| TOPBUILD PROJECTS LIMITED | 05911887 | 21/08/2006 | 14/04/2008 | Dissolved |
| ZARRE LIMITED | 05638604 | 29/11/2005 | 27/10/2009 | Not Trading |