| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ATOS ORIGIN (SEMA) PENSION TRUSTEES LIMITED | 04044489 | 20/06/2008 | Dissolved |
| ATOS ORIGIN BARBADOS LIMITED | 02144824 | 20/06/2008 | Dissolved |
| ATOS ORIGIN BARBADOS LIMITED | 02144824 | 29/01/2004 | Dissolved |
| ATOS ORIGIN COMPOWER LIMITED | 01102024 | 29/01/2004 | Dissolved |
| ATOS ORIGIN CS PENSION TRUSTEES LIMITED | 04044483 | 20/06/2008 | Dissolved |
| ATOS ORIGIN PENSION TRUSTEES LIMITED | 03132432 | 20/06/2008 | Dissolved |
| Atos Origin Ukotib Ltd | 02634338 | 29/01/2004 | Dissolved |
| CRISIS MANAGEMENT SERVICES LIMITED | 02485393 | 29/01/2004 | Dissolved |
| Computer Analysts & Programmers Ltd | 00723035 | 20/06/2008 | Dissolved |
| Computer Analysts & Programmers Ltd | 00723035 | 29/01/2004 | Dissolved |
| Convergent Europe Ltd | 02842825 | 20/06/2008 | Dissolved |
| Convergent Europe Ltd | 02842825 | 29/01/2004 | Dissolved |
| Data Recovery Ltd | 02019782 | 29/01/2004 | Dissolved |
| L H S Europe Ltd | 03114370 | 29/01/2004 | Dissolved |
| Meridian Information Systems Ltd | 01672402 | 29/01/2004 | Dissolved |
| Metra-Hos Ltd | 01782522 | 29/01/2004 | Dissolved |
| Perthcrest Ltd | 01856208 | 29/01/2004 | Dissolved |
| Perthcrest Managed Services Ltd | 01533793 | 29/01/2004 | Dissolved |
| SEMA CONSULTING LIMITED | 00949745 | 29/01/2004 | Dissolved |
| SEMA PARTNER 1 LIMITED | 04125843 | 29/01/2004 | Dissolved |
| SEMA SYSTEMS LIMITED | 01417035 | 29/01/2004 | Dissolved |
| SEMA-LHS (UK) LIMITED | 04106026 | 29/01/2004 | Dissolved |
| Sema Atlanta Ltd | 04089345 | 29/01/2004 | Dissolved |
| Sema Canada Ltd | 02767954 | 20/06/2008 | Dissolved |
| Sema Canada Ltd | 02767954 | 29/01/2004 | Dissolved |
| Sema Mobile Communications Ltd | 00450335 | 29/01/2004 | Dissolved |
| Sema Outsourcing Plc | 02002981 | 29/01/2004 | Dissolved |
| Sema Partner 2 Ltd | 04125837 | 29/01/2004 | Dissolved |
| Sema Quest Trustee Ltd | 03871219 | 29/01/2004 | Dissolved |
| Sema Telecom Services Ltd | 03958430 | 29/01/2004 | Dissolved |
| Sema Us Ltd | 04089348 | 29/01/2004 | Dissolved |
| Sema-Lhs (Europe Holdings) Ltd | 04106076 | 29/01/2004 | Dissolved |
| Syntax Managed Services Ltd | 02442594 | 20/06/2008 | Dissolved |
| Syntax Managed Services Ltd | 02442594 | 29/01/2004 | Dissolved |
| YARROW LIMITED | 00121699 | 29/01/2004 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ATOS CONSULTING LIMITED | 04312380 | 20/06/2008 | 28/02/2020 | Silver |
| ATOS CONSULTING LIMITED | 04312380 | 20/01/2005 | 28/02/2020 | Silver |
| ATOS INTERNATIONAL IT LIMITED | 01907841 | 20/06/2008 | 28/02/2020 | Silver |
| ATOS INTERNATIONAL IT LIMITED | 01907841 | 29/01/2004 | 28/02/2020 | Silver |
| ATOS INVESTMENTS LIMITED | 04140467 | 20/06/2008 | 28/02/2020 | Silver |
| ATOS INVESTMENTS LIMITED | 04140467 | 29/01/2004 | 28/02/2020 | Silver |
| ATOS IT SERVICES LIMITED | 01240677 | 20/06/2008 | 28/02/2020 | Amber |
| ATOS IT SERVICES LIMITED | 01240677 | 27/06/2008 | 28/02/2020 | Amber |
| ATOS IT SERVICES UK LIMITED | 01245534 | 20/06/2008 | 28/02/2020 | Amber |
| ATOS IT SERVICES UK LIMITED | 01245534 | 29/01/2004 | 28/02/2020 | Amber |
| ATOS IT SOLUTIONS AND SERVICES LIMITED | 01203466 | 17/05/1995 | 06/03/2000 | Not Trading |
| ATOS IT SOLUTIONS AND SERVICES LIMITED | 01203466 | 03/08/2011 | 28/02/2020 | Not Trading |
| ATOS LIFE TRUSTEE LIMITED | 06433016 | 20/06/2008 | 28/02/2020 | Not Trading |
| ATOS LIFE TRUSTEE LIMITED | 06433016 | 27/03/2008 | 28/02/2020 | Not Trading |
| ATOS LIMITED | 03290446 | 20/06/2008 | 28/02/2020 | Not Trading |
| ATOS LIMITED | 03290446 | 29/01/2004 | 28/02/2020 | Not Trading |
| ATOS ORIGIN (SEMA) PENSION TRUSTEES LIMITED | 04044489 | 15/10/2002 | 21/07/2003 | Dissolved |
| ATOS ORIGIN CS PENSION TRUSTEES LIMITED | 04044483 | 29/01/2004 | 29/01/2004 | Dissolved |
| ATOS PENSION SCHEMES LIMITED | 06948732 | 30/06/2009 | 19/09/2017 | Not Trading |
| ATOS UK INTERNATIONAL IT SERVICES LIMITED | 02479329 | 20/06/2008 | 28/02/2020 | Bronze |
| ATOS UK INTERNATIONAL IT SERVICES LIMITED | 02479329 | 29/01/2004 | 14/02/2013 | Bronze |
| ATOS UK IT HOLDINGS LIMITED | 04451247 | 20/06/2008 | 28/02/2020 | One Red Flag |
| ATOS UK IT LIMITED | 02479330 | 20/06/2008 | 28/02/2020 | Silver |
| ATOS UK IT LIMITED | 02479330 | 30/11/2006 | 28/02/2020 | Silver |
| BARABAS LIMITED | 03294014 | 20/06/2008 | 28/02/2020 | Not Trading |
| BARABAS LIMITED | 03294014 | 29/01/2004 | 28/02/2020 | Not Trading |
| BR BUSINESS SYSTEMS LIMITED | 03222541 | 20/06/2008 | 28/02/2020 | Not Trading |
| BR BUSINESS SYSTEMS LIMITED | 03222541 | 29/01/2004 | 28/02/2020 | Not Trading |
| ESPRIT DIGITAL SERVICES LIMITED | 04691604 | 20/06/2008 | 28/02/2020 | Not Trading |
| ESPRIT DIGITAL SERVICES LIMITED | 04691604 | 29/05/2008 | 28/02/2020 | Not Trading |
| ETOURISM LIMITED | SC226890 | 29/01/2004 | 29/10/2006 | Silver |
| H.E. INFORMATION SYSTEMS LIMITED | 02920388 | 30/05/1996 | 14/02/2000 | Dissolved |
| H.E. INFORMATION SYSTEMS LIMITED | 02920388 | 30/05/1996 | 14/11/1997 | Dissolved |
| HEATHSHOTT PROPERTY MANAGEMENT LIMITED | 02634970 | 13/10/1997 | 05/12/2018 | Gold |
| SCHLUMBERGER COMMON INVESTMENT FUND LIMITED | 04429259 | 27/01/2003 | 05/07/2004 | Not Trading |
| SEMA INVESTMENT UK LIMITED | 04168291 | 20/06/2008 | 28/02/2020 | Silver |
| SEMA INVESTMENT UK LIMITED | 04168291 | 29/01/2004 | 28/02/2020 | Silver |
| SHERE LIMITED | 00078235 | 26/03/2010 | 28/02/2020 | Silver |
| Siemens Energy Services Ltd | 03848176 | 12/10/1999 | 06/03/2000 | Dissolved |
| Siemens Energy Services Ltd | 03848176 | 12/10/1999 | 06/03/2000 | Dissolved |
| TUSCAN CONNECTS LIMITED | 05799215 | 26/03/2015 | 16/04/2015 | Dissolved |
| Unimotive Ltd | 03385654 | 04/07/1997 | 06/03/2000 | Dissolved |
| Unimotive Ltd | 03385654 | 04/07/1997 | 12/10/1998 | Dissolved |