| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ACM ODYSSEY I LIMITED | 07315115 | 30/10/2020 | Gold |
| ACM ODYSSEY II LIMITED | 07315114 | 30/10/2020 | Gold |
| AECOM CORPORATION HOLDINGS (UK) LIMITED | 03039328 | 30/10/2020 | Bronze |
| AECOM DESIGN BUILD (HOLDINGS) LIMITED | 03620676 | 30/10/2020 | Amber |
| AECOM GHC1 LIMITED | 09924871 | 05/03/2019 | Gold |
| AECOM GLOBAL GROUP LIMITED | 02492136 | 30/10/2020 | Amber |
| AECOM GLOBAL HOLDINGS UK LIMITED | 06973874 | 05/03/2019 | Silver |
| AECOM GR1 LIMITED | 08754897 | 03/07/2019 | Bronze |
| AECOM GR2 LIMITED | 08755026 | 03/07/2019 | Silver |
| AECOM HC1 LIMITED | 09924899 | 03/07/2019 | Not Trading |
| AECOM HOLDINGS LIMITED | 03745592 | 08/02/2019 | Bronze |
| AECOM UKHOLDCO1 LIMITED | 09924878 | 03/07/2019 | Gold |
| AECOM UKRC LIMITED | 11577908 | 30/10/2020 | Gold |
| AECOM WORLDWIDE HOLDINGS UK LIMITED | 08002197 | 05/03/2019 | Gold |
| AKT JV LIMITED | 08589206 | 19/02/2019 | Dissolved |
| BASING VIEW INVESTMENTS LTD | 03022390 | 03/07/2019 | Insolvent |
| CAMERON TAYLOR CONSULTING LIMITED | 04433630 | 30/10/2020 | Not Trading |
| CAMERON TAYLOR GROUP LIMITED | 03904241 | 30/10/2020 | One Red Flag |
| CAMERON TAYLOR ONE LIMITED | 02700538 | 30/10/2020 | Not Trading |
| CAMERON TAYLOR RESOURCES LIMITED | 02755193 | 30/10/2020 | Not Trading |
| CTG (1999) LIMITED | 03585733 | 30/10/2020 | Not Trading |
| DAMES & MOORE LIMITED | 02223084 | 30/10/2020 | Dissolved |
| DAVIS LANGDON 2004 LIMITED | 02519561 | 30/10/2020 | Not Trading |
| DAVIS LANGDON SERVICES (UK) LIMITED | 06997578 | 08/02/2019 | Insolvent |
| DGP INTERNATIONAL LTD | 03686895 | 03/07/2019 | Dissolved |
| EDAW PLC | 02733032 | 25/01/2021 | Dissolved |
| FERGUSON & MCILVEEN HOLDINGS LIMITED | NI037752 | 11/02/2019 | Dissolved |
| MAUNSELL INTERNATIONAL PROJECTS LIMITED | 01921890 | 09/06/2021 | Dissolved |
| MULHOLLAND & DOHERTY LIMITED | NI045133 | 03/07/2019 | Dissolved |
| PROJECT SPACE (HOLDINGS) LIMITED | 06962292 | 08/02/2019 | Dissolved |
| PROJECT SPACE (OVERSEAS) LIMITED | 06913243 | 08/02/2019 | Dissolved |
| PROJECT SPACE (UK) LIMITED | 06962293 | 08/02/2019 | Dissolved |
| SCHUMANN SMITH LIMITED | 02213394 | 30/10/2020 | Insolvent |
| SCOTT WILSON (REDTREE) LTD | 01135304 | 03/07/2019 | Dissolved |
| SCOTT WILSON PIESOLD LTD | 02894693 | 03/07/2019 | Dissolved |
| SCOTT WILSON RAILWAYS LTD | 03033277 | 03/07/2019 | Not Trading |
| SCOTT WILSON SCOTLAND LTD. | SC048951 | 03/07/2019 | Not Trading |
| THORBURN COLQUHOUN HOLDINGS LIMITED | SC085696 | 30/10/2020 | Not Trading |
| UNIVERSE BIDCO LIMITED | 07289402 | 03/07/2019 | Bronze |
| UNIVERSE HOLDCO LIMITED | 07289421 | 03/07/2019 | One Red Flag |
| URS CORPORATION GROUP LIMITED | 05639381 | 30/10/2020 | Amber |
| URS CORPORATION LIMITED | SC118271 | 19/02/2019 | Gold |
| URS EUROPE LIMITED | 03678568 | 03/07/2019 | Silver |
| URS UNITED PROCESS LIMITED | 07877535 | 03/07/2019 | Dissolved |
| WGI MIDDLE EAST (UK) LTD. | 04438911 | 03/07/2019 | Dissolved |
| WOODWARD-CLYDE LIMITED | SC136353 | 30/10/2020 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| @HOME MMC LIMITED | 09924910 | 03/07/2019 | 26/04/2021 | Bronze |
| AECOM DESIGN & CONSULTING SERVICES UK LIMITED | 07840752 | 03/07/2019 | 19/09/2019 | Gold |
| AECOM INTERCONTINENTAL HOLDINGS UK LIMITED | 07972017 | 05/03/2019 | 04/05/2023 | Gold |
| AMENTUM FACILITY MANAGEMENT UK LTD. | 04444814 | 18/07/2019 | 20/01/2020 | Amber |