| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Atos Origin Uk Services Ltd | 02674501 | 08/01/2001 | Dissolved |
| INFINIT SOLUTIONS LIMITED | 02905752 | 14/03/1994 | Gold |
| JBCC LTD | 08683160 | 09/09/2013 | Strike Off |
| SANCTUM SOFTWARE LTD | 09191640 | 28/08/2014 | Silver |
| SANCTUM SYSTEMS LIMITED | 15301005 | 21/11/2023 | Amber |
| St. Mary's (Harrow on The Hill) Music Festival Ltd | 03445516 | 08/10/1998 | Dissolved |
| St. Mary's (Harrow on The Hill) Music Festival Ltd | 03445516 | 08/10/1998 | Dissolved |
| VICARAGE CLOSE MANAGEMENT LIMITED | 01834335 | 14/11/2001 | Gold |
| VICARAGE CLOSE MANAGEMENT NO. 2 LIMITED | 02166559 | 25/01/1999 | Gold |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ATOS CONSULTING LIMITED | 04312380 | 28/08/2003 | 29/01/2004 | Silver |
| ATOS LIMITED | 03290446 | 19/03/2001 | 29/01/2004 | Not Trading |
| ATOS ORIGIN COMPOWER LIMITED | 01102024 | 08/01/2001 | 29/01/2004 | Dissolved |
| ATOS ORIGIN PENSION TRUSTEES LIMITED | 03132432 | 13/07/2001 | 29/01/2004 | Dissolved |
| ATOS UK INTERNATIONAL IT SERVICES LIMITED | 02479329 | 08/01/2001 | 29/01/2004 | Bronze |
| ATOS UK IT HOLDINGS LIMITED | 04451247 | 04/07/2002 | 01/07/2003 | One Red Flag |
| ATOS UK IT LIMITED | 02479330 | 08/01/2001 | 29/01/2004 | Silver |
| Atos Origin Ukotib Ltd | 02634338 | 08/01/2001 | 29/01/2004 | Dissolved |
| ESPRIT DIGITAL SERVICES LIMITED | 04691604 | 24/03/2003 | 20/10/2004 | Not Trading |
| ST. LUKE'S HOSPICE (HARROW & BRENT) LTD. | 02141770 | 01/07/2005 | 13/06/2013 | Silver |
| THE PATIENTS ASSOCIATION | 02620761 | 17/09/2015 | 01/06/2017 | Gold |
| VICARAGE CLOSE MANAGEMENT LIMITED | 01834335 | 14/11/2001 | 20/09/2005 | Gold |