| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ABILITEC LIMITED | 05057231 | 30/12/2016 | Dissolved |
| ATOS ORIGIN BARBADOS LIMITED | 02144824 | 01/08/2008 | Dissolved |
| Computer Analysts & Programmers Ltd | 00723035 | 01/08/2008 | Dissolved |
| Convergent Europe Ltd | 02842825 | 01/08/2008 | Dissolved |
| INNOVISE ESM HOLDINGS LIMITED | 03741913 | 30/12/2016 | Dissolved |
| INNOVISE ESM LIMITED | 03711429 | 30/12/2016 | Dissolved |
| Sema Canada Ltd | 02767954 | 01/08/2008 | Dissolved |
| Syntax Managed Services Ltd | 02442594 | 01/08/2008 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ATOS APF SCOTLAND GP LIMITED | SC472414 | 13/03/2014 | 16/02/2016 | Gold |
| ATOS ASPS SCOTLAND GP LIMITED | SC472415 | 13/03/2014 | 16/02/2016 | Gold |
| ATOS CONSULTING LIMITED | 04312380 | 01/08/2008 | 16/02/2016 | Gold |
| ATOS INTERNATIONAL IT HOLDINGS LIMITED | 09608687 | 26/05/2015 | 16/02/2016 | Gold |
| ATOS INTERNATIONAL IT LIMITED | 01907841 | 01/08/2008 | 16/02/2016 | Bronze |
| ATOS INVESTMENTS LIMITED | 04140467 | 01/08/2008 | 16/02/2016 | Gold |
| ATOS IT SERVICES LIMITED | 01240677 | 01/08/2008 | 16/02/2016 | Amber |
| ATOS IT SERVICES UK LIMITED | 01245534 | 01/08/2008 | 16/02/2016 | Amber |
| ATOS IT SOLUTIONS AND SERVICES LIMITED | 01203466 | 03/08/2011 | 16/02/2016 | Not Trading |
| ATOS LIFE TRUSTEE LIMITED | 06433016 | 24/09/2014 | 16/02/2016 | Gold |
| ATOS LIMITED | 03290446 | 01/08/2008 | 16/02/2016 | Bronze |
| ATOS ORIGIN (SEMA) PENSION TRUSTEES LIMITED | 04044489 | 11/01/2013 | 16/02/2016 | Dissolved |
| ATOS ORIGIN CS PENSION TRUSTEES LIMITED | 04044483 | 11/01/2013 | 16/02/2016 | Dissolved |
| ATOS ORIGIN PENSION TRUSTEES LIMITED | 03132432 | 11/01/2013 | 16/02/2016 | Dissolved |
| ATOS SCOTLAND GP LIMITED | SC465208 | 04/12/2013 | 16/02/2016 | Gold |
| ATOS UK HOLDINGS LIMITED | 09612967 | 28/05/2015 | 16/02/2016 | Gold |
| ATOS UK INTERNATIONAL IT SERVICES LIMITED | 02479329 | 01/08/2008 | 16/02/2016 | Silver |
| ATOS UK IT HOLDINGS LIMITED | 04451247 | 20/07/2015 | 16/02/2016 | Amber |
| ATOS UK IT LIMITED | 02479330 | 08/08/2008 | 16/02/2016 | Silver |
| BARABAS LIMITED | 03294014 | 01/08/2008 | 16/02/2016 | Not Trading |
| BR BUSINESS SYSTEMS LIMITED | 03222541 | 01/08/2008 | 16/02/2016 | Not Trading |
| BULL FINANCIAL SERVICES LIMITED | 03238495 | 26/03/2015 | 16/02/2016 | Gold |
| BULL INFORMATION SYSTEMS LIMITED | 02017873 | 26/03/2015 | 16/02/2016 | Not Trading |
| ENGAGE ESM HOLDINGS LTD | 02944265 | 30/12/2016 | 01/02/2019 | Not Trading |
| ENGAGE ESM LTD | 04176016 | 30/12/2016 | 01/02/2019 | Silver |
| ESPRIT DIGITAL SERVICES LIMITED | 04691604 | 01/08/2008 | 16/02/2016 | Not Trading |
| SEMA INVESTMENT UK LIMITED | 04168291 | 01/08/2008 | 16/02/2016 | Gold |
| SHERE LIMITED | 00078235 | 26/03/2010 | 16/02/2016 | Gold |
| TUSCAN CONNECTS LIMITED | 05799215 | 26/03/2015 | 16/04/2015 | Dissolved |
| XINSYS LTD | 09580058 | 30/12/2016 | 01/02/2019 | Not Trading |