| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ORION ENGINEERING SERVICES LIMITED | SC098014 | 01/09/2016 | Silver |
| ORION EXECUTIVE SEARCH LIMITED | SC556853 | 07/02/2017 | One Red Flag |
| Orion Technical Services Ltd | 02071129 | 01/09/2000 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| D GOW & SON LIMITED | SC190846 | 08/10/2002 | 23/12/2010 | Dissolved |
| D GOW & SON LIMITED | SC190846 | 08/10/2002 | 30/04/2007 | Dissolved |
| OBM LIMITED | SC391970 | 28/02/2011 | 31/12/2015 | Amber |
| OCCMS LIMITED | SC219224 | 19/04/2002 | 23/12/2010 | Amber |
| ORICAL LTD. | SC207742 | 29/06/2000 | 23/12/2010 | Dissolved |
| ORION ENGINEERING SERVICES LIMITED | SC098014 | 01/09/2000 | 23/12/2010 | Silver |
| ORION ENGINEERING SERVICES LIMITED | SC098014 | 31/01/2007 | 23/12/2010 | Silver |
| ORION EXECUTIVE LIMITED | SC188108 | 02/03/2001 | 23/12/2010 | Dissolved |
| ORION GROUP UK LIMITED | SC179778 | 21/06/2007 | 23/12/2010 | Dissolved |
| ORION INTERNET SYSTEMS LTD. | SC189332 | 11/01/2006 | 23/12/2010 | Dissolved |
| ORION PROJECT CONSULTANTS LIMITED | SC237407 | 27/09/2002 | 23/12/2010 | Gold |
| ORION PROJECT SERVICES LTD. | SC176193 | 28/05/2001 | 23/12/2010 | Dissolved |
| ORION RAIL LIMITED | SC222532 | 20/08/2002 | 23/12/2010 | Dissolved |
| ORION RAIL SERVICES LIMITED | SC208490 | 25/06/2001 | 23/12/2010 | Dissolved |