| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Clearwater Process Control Ltd | 05384187 | 24/03/2005 | Dissolved |
| ENVIRONMENTAL TREATMENT SYSTEMS LTD | NF004339 | 16/06/2009 | Dissolved |
| Sensor Services Ltd | NI039266 | 24/02/2006 | Dissolved |
| Sensor Systems (Signalman) Ltd | NI031744 | 24/02/2006 | Dissolved |
| Stanley Cylinders Ltd | 01214072 | 24/11/2006 | Dissolved |
| Yorkshire Cylinders Ltd | 02949972 | 24/11/2006 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| A.L.B.S. LIMITED | 03413679 | 24/11/2006 | 31/12/2012 | Dissolved |
| ALBION WATER HEATERS | 03413752 | 24/11/2006 | 31/12/2012 | Dissolved |
| ATLAS TANKS LTD | NI040526 | 17/10/2007 | 21/04/2008 | Dissolved |
| ATLAS TANKS LTD | NI040526 | 17/10/2007 | 31/12/2012 | Dissolved |
| COATES DESIGN PARTNERSHIP LIMITED | 04389682 | 29/03/2007 | 31/12/2012 | Dissolved |
| CRENDON TIMBER ENGINEERING LIMITED | 01992573 | 29/06/2018 | 01/02/2020 | Gold |
| DEVON AND SOMERSET ENGINEERING COMPANY LIMITED | 01844814 | 17/10/2007 | 25/04/2008 | Dissolved |
| DEVON AND SOMERSET ENGINEERING COMPANY LIMITED | 01844814 | 17/10/2007 | 31/12/2012 | Dissolved |
| ENVIRONMENTAL TREATMENT SYSTEMS LIMITED | 03888183 | 10/12/1999 | 31/12/2012 | Strike Off |
| KEC (OLD) LIMITED | NI023187 | 08/06/2000 | 31/12/2012 | Dissolved |
| KINGSPAN E&R SERVICES | 02702796 | 24/11/2006 | 31/12/2012 | Dissolved |
| KINGSPAN HOT WATER SYSTEMS LIMITED | 04357772 | 24/11/2006 | 31/12/2012 | Dissolved |
| KINGSPAN RENEWABLES LIMITED | NI065407 | 10/08/2007 | 31/12/2012 | Dissolved |
| KINGSPAN SOLAR LIMITED | 05486212 | 29/03/2007 | 31/12/2012 | Dissolved |
| KINGSPAN WATER & ENERGY LIMITED | NI017631 | 06/07/1984 | 31/12/2012 | Gold |
| KS TREASURY LIMITED | NI663107 | 18/07/2019 | 28/02/2020 | One Red Flag |
| MANCHESTER COPPERSMITHS LIMITED | 05630047 | 12/12/2006 | 31/12/2012 | Dissolved |
| NI61087 LIMITED | NI061087 | 17/10/2007 | 30/11/2007 | Dissolved |
| NI61087 LIMITED | NI061087 | 17/10/2007 | 31/12/2012 | Dissolved |
| NORBROOK HOLDINGS LIMITED | 02258447 | 28/05/2020 | 31/12/2022 | Gold |
| NORBROOK LABORATORIES LIMITED | NI007665 | 26/03/2020 | 31/12/2022 | Gold |
| NOTTARB LIMITED | 02654204 | 17/10/2007 | 25/04/2008 | Dissolved |
| NOTTARB LIMITED | 02654204 | 17/10/2007 | 25/08/2009 | Dissolved |
| PLASTIC DEVELOPMENT CENTRE LIMITED | NI025429 | 11/04/1991 | 31/12/2012 | Dissolved |
| POLMERIC MOULDINGS | NI017766 | 05/09/1984 | 31/12/2012 | Dissolved |
| RCM STAINLESS LIMITED | 04767069 | 24/11/2006 | 31/12/2012 | Dissolved |
| SENSOR SYSTEMS WATCHMAN | NI020631 | 24/02/2006 | 31/12/2012 | Dissolved |
| T.T. PLASTICS LIMITED | NI020013 | 24/11/2006 | 31/12/2012 | Gold |
| TIMBER FRAME SERVICES LIMITED | 01639174 | 28/03/2019 | 01/02/2020 | Gold |
| TITAN PLASTECH | 03900916 | 05/01/2000 | 31/12/2012 | Dissolved |
| TITAN POLLUTION CONTROL LIMITED | 01222218 | 12/02/1999 | 08/08/2007 | Dissolved |
| TYRRELL TANKS LIMITED | NI010553 | 23/01/1975 | 31/12/2012 | Dissolved |
| W.D. IRWIN & SONS LIMITED | NI059204 | 03/02/2014 | 01/03/2016 | Amber |
| WB TIMBER INNOVATIONS LIMITED | 07529871 | 23/01/2017 | 01/02/2020 | Bronze |
| WBTI LTD | 09180530 | 23/01/2017 | 01/02/2020 | Silver |