| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ALOPUC LIMITED | 08538477 | 14/07/2016 | Silver |
| ATRIUM 5 LIMITED | 02861145 | 06/02/2013 | Gold |
| ATRIUM CORPORATE CAPITAL LIMITED | 12850620 | 01/09/2020 | Silver |
| ATRIUM GROUP SERVICES LIMITED | 06022662 | 06/02/2013 | Silver |
| ATRIUM INSURANCE AGENCY LIMITED | 05993519 | 09/11/2006 | Gold |
| ATRIUM NOMINEES LIMITED | 09396827 | 20/01/2015 | Silver |
| ATRIUM RISK MANAGEMENT SERVICES (WASHINGTON) LTD. | FC037886 | 19/12/2020 | Gold |
| ATRIUM UNDERWRITERS LIMITED | 01958863 | 01/10/2002 | Gold |
| ATRIUM UNDERWRITING GROUP LIMITED | 02860390 | 20/08/2010 | Silver |
| ATRIUM UNDERWRITING HOLDINGS LIMITED | 02861307 | 06/02/2013 | Dissolved |
| NOMINA NO 207 LLP | OC323523 | 01/01/2015 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| GRACECHURCH UTG NO. 383 LIMITED | 02861129 | 06/02/2013 | 19/12/2019 | Dissolved |
| GRACECHURCH UTG NO. 384 LIMITED | 02861131 | 06/02/2013 | 19/12/2019 | Dissolved |
| GRACECHURCH UTG NO. 385 LIMITED | 02861134 | 06/02/2013 | 19/12/2019 | Strike Off |
| GRACECHURCH UTG NO. 386 LIMITED | 02861143 | 06/02/2013 | 19/12/2019 | Strike Off |
| GRACECHURCH UTG NO. 387 LIMITED | 03411497 | 06/02/2013 | 19/12/2019 | Dissolved |
| GRACECHURCH UTG NO. 388 LIMITED | 03411536 | 06/02/2013 | 19/12/2019 | Dissolved |
| GRACECHURCH UTG NO. 389 LIMITED | 03411529 | 06/02/2013 | 19/12/2019 | Dissolved |
| GRACECHURCH UTG NO. 390 LIMITED | 03411534 | 06/02/2013 | 19/12/2019 | Dissolved |
| GRACECHURCH UTG NO. 391 LIMITED | 03411528 | 06/02/2013 | 19/12/2019 | Strike Off |
| GRACECHURCH UTG NO. 392 LIMITED | 02966649 | 06/02/2013 | 19/12/2019 | Dissolved |
| SGL NO.1 LIMITED | 06454514 | 07/12/2016 | 14/07/2023 | Bronze |