| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| AB CONSULTING LIMITED | 01091265 | 01/03/2017 | Dissolved |
| FINANCIAL DECISIONS LIMITED | 02108267 | 01/03/2017 | Dissolved |
| GRAHAM CONSULTING GROUP LIMITED | 02428039 | 01/03/2017 | Dissolved |
| INTEGRATED BUILDING SERVICES DESIGN PARTNERSHIP LIMITED | 02606296 | 01/03/2017 | Dissolved |
| KENNEDY & DONKIN (ASIA) LIMITED | 04091710 | 01/03/2017 | Dissolved |
| KIRKBY AT LIMITED | 06255352 | 01/03/2017 | Dissolved |
| MERZ AND MCLELLAN CONSULTING ENGINEERS LIMITED | 03246982 | 01/03/2017 | Dissolved |
| OPUS INTERNATIONAL CONSULTANTS (UK) LIMITED | 02847568 | 19/01/2018 | Dissolved |
| OPUS INTERNATIONAL CONSULTANTS HOLDINGS (UK) LIMITED | 02497188 | 19/01/2018 | Dissolved |
| PARSONS BRINCKERHOFF HOLDINGS LIMITED | 03640733 | 01/03/2017 | Dissolved |
| PARSONS BRINCKERHOFF LTD | 02554514 | 01/03/2017 | Bronze |
| PB LTD | 00656314 | 01/03/2017 | Not Trading |
| PB POWER LTD | 04353230 | 01/03/2017 | Dissolved |
| SMITH CARTER UK LIMITED | 06219327 | 01/03/2017 | Dissolved |
| TOWER SURVEYS LIMITED | 03563870 | 09/04/2018 | Dissolved |
| WSP BUILDINGS LIMITED | 02859678 | 01/03/2017 | Dissolved |
| WSP CEL LIMITED | 03877626 | 01/03/2017 | Dissolved |
| WSP CIVILS LIMITED | 02430067 | 01/03/2017 | Dissolved |
| WSP ENVIRONMENTAL LIMITED | 01152332 | 01/03/2017 | Dissolved |
| WSP EUROPEAN HOLDINGS LIMITED | 04121721 | 01/03/2017 | Gold |
| WSP GROUP HOLDINGS LIMITED | 07773599 | 01/03/2017 | Silver |
| WSP GROUP LIMITED | 02136404 | 01/03/2017 | Gold |
| WSP HOLDING UK LIMITED | 08100508 | 01/03/2017 | Silver |
| WSP MANAGEMENT CONSULTANTS LIMITED | 05391063 | 13/12/2017 | Strike Off |
| WSP MANAGEMENT SERVICES LIMITED | 02454665 | 01/03/2017 | Silver |
| WSP NORTH LIMITED | 02257665 | 01/03/2017 | Dissolved |
| WSP REMEDIATION LIMITED | 02623378 | 24/04/2017 | Dissolved |
| WSP UK LIMITED | 01383511 | 01/03/2017 | Gold |
| WSP UK WATER SERVICES LIMITED | 02386601 | 01/03/2017 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| IDEAS PROJECT ENGINEERING LTD. | 03085684 | 01/03/2017 | 01/03/2017 | Dissolved |