| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BENNACHIE CONSULTING LIMITED | SC422267 | 02/07/2012 | Dissolved |
| BENNCON LIMITED | SC470690 | 04/04/2014 | One Red Flag |
| ORCHID NEWTON LIMITED | SC438836 | 19/02/2013 | One Red Flag |
| PI ASSET INTEGRITY LIMITED | SC292210 | 10/01/2006 | Dissolved |
| PI GAS TURBINES (SWEDEN) LIMITED | SC342698 | 28/05/2008 | Dissolved |
| PI MINERVA LIMITED | SC331502 | 12/10/2007 | Dissolved |
| PI ROTATING MACHINERY LIMITED | SC311894 | 04/01/2007 | Dissolved |
| S2 PROPERTY LIMITED | SC293978 | 12/12/2005 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| LANCASHIRE RENEWABLES LIMITED | 05881147 | 01/06/2010 | 03/02/2011 | Amber |
| METRON GROUP LIMITED | SC467010 | 05/01/2015 | 14/08/2015 | Gold |
| PERFORMANCE IMPROVEMENTS (P I) LIMITED | SC173714 | 20/03/1997 | 20/07/2012 | Dissolved |
| PERFORMANCE IMPROVEMENTS (PI) GROUP LIMITED | SC209758 | 12/07/2001 | 20/07/2012 | Dissolved |
| PI CONTROL TECHNOLOGIES LIMITED | SC332213 | 12/10/2007 | 20/07/2012 | Dissolved |
| PI ENERGY & EMISSIONS LIMITED | SC209704 | 12/07/2001 | 20/07/2012 | Dissolved |
| PI GAS TURBINES LIMITED | SC209759 | 12/07/2001 | 20/07/2012 | Dissolved |
| PI RECRUITMENT LIMITED | SC283157 | 02/05/2005 | 20/07/2012 | Dissolved |