| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| DRAKE & SCULL (SCOTLAND) LIMITED | SC010649 | 31/01/2022 | Strike Off |
| DRAKE & SCULL AIRPORT SERVICES LIMITED | 02668077 | 30/09/2021 | Not Trading |
| EMCOR (UK) LIMITED | 02353544 | 30/09/2021 | Gold |
| EMCOR ENERGY SERVICES LIMITED | 03114139 | 30/09/2021 | Not Trading |
| EMCOR ENGINEERING SERVICES LIMITED | 03667540 | 30/09/2021 | Not Trading |
| EMCOR FACILITIES SERVICES LIMITED | 03053121 | 30/09/2021 | Not Trading |
| EMCOR GROUP (UK) PLC | 00806888 | 30/09/2021 | Gold |
| EMCOR RAIL LIMITED | 03667538 | 30/09/2021 | Not Trading |
| MCCALL CONSULTING LTD | 13374026 | 04/05/2021 | Dissolved |
| PROJECT SPACE (HOLDINGS) LIMITED | 06962292 | 03/10/2018 | Dissolved |
| QUBE PLANNING LIMITED | 03748976 | 03/10/2018 | Dissolved |
| SALTROCK DEVELOPMENTS LTD | 08458179 | 22/03/2013 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ACM ODYSSEY I LIMITED | 07315115 | 03/10/2018 | 30/10/2020 | Silver |
| ACM ODYSSEY II LIMITED | 07315114 | 03/10/2018 | 30/10/2020 | Silver |
| AECOM CORPORATION HOLDINGS (UK) LIMITED | 03039328 | 24/09/2018 | 30/10/2020 | Bronze |
| AECOM DESIGN & CONSULTING SERVICES UK LIMITED | 07840752 | 19/09/2019 | 30/10/2020 | Silver |
| AECOM DESIGN BUILD (HOLDINGS) LIMITED | 03620676 | 03/10/2018 | 30/10/2020 | Amber |
| AECOM DESIGN BUILD LIMITED | 02699219 | 03/10/2018 | 30/10/2020 | Silver |
| AECOM ENVIRONMENTAL SOLUTIONS LIMITED | 08739848 | 22/03/2018 | 30/10/2020 | Bronze |
| AECOM EUROPE HOLDINGS LIMITED | 06765188 | 24/09/2018 | 30/10/2020 | One Red Flag |
| AECOM GLOBAL GROUP LIMITED | 02492136 | 10/12/2018 | 30/10/2020 | Amber |
| AECOM HOLDINGS LIMITED | 03745592 | 22/03/2018 | 11/02/2019 | Bronze |
| AECOM INFRASTRUCTURE & ENVIRONMENT UK LIMITED | 00880328 | 22/03/2018 | 30/10/2020 | Gold |
| AECOM LIMITED | 01846493 | 22/03/2018 | 30/10/2020 | Silver |
| AECOM UKRC LIMITED | 11577908 | 19/09/2018 | 30/10/2020 | Silver |
| AKT JV LIMITED | 08589206 | 19/02/2019 | 30/10/2020 | Dissolved |
| AMENTUM INTERNATIONAL HOLDINGS UK LTD. | 00530311 | 24/09/2018 | 14/10/2019 | Bronze |
| CAMERON TAYLOR CONSULTING LIMITED | 04433630 | 19/02/2019 | 30/10/2020 | Not Trading |
| CAMERON TAYLOR GROUP LIMITED | 03904241 | 03/10/2018 | 30/10/2020 | One Red Flag |
| CAMERON TAYLOR ONE LIMITED | 02700538 | 03/10/2018 | 30/10/2020 | Not Trading |
| CAMERON TAYLOR RESOURCES LIMITED | 02755193 | 03/10/2018 | 30/10/2020 | Not Trading |
| COWATER UK LIMITED | 11373728 | 21/05/2018 | 27/06/2019 | Gold |
| CTG (1999) LIMITED | 03585733 | 11/02/2019 | 30/10/2020 | Not Trading |
| DAMES & MOORE LIMITED | 02223084 | 03/10/2018 | 30/10/2020 | Dissolved |
| DAVIS LANGDON 2004 LIMITED | 02519561 | 03/10/2018 | 30/10/2020 | Not Trading |
| DAVIS LANGDON SERVICES (UK) LIMITED | 06997578 | 03/10/2018 | 30/10/2020 | Insolvent |
| GAULT AND CHAMBERS, BULLEN LIMITED | NI029176 | 03/10/2018 | 30/10/2020 | Not Trading |
| METAPRAXIS LIMITED | 01412766 | 01/01/2022 | 30/06/2023 | Pre-I |
| PROJECT SPACE (OVERSEAS) LIMITED | 06913243 | 03/10/2018 | 30/10/2020 | Dissolved |
| PROJECT SPACE (UK) LIMITED | 06962293 | 03/10/2018 | 30/10/2020 | Dissolved |
| SCHUMANN SMITH LIMITED | 02213394 | 03/10/2018 | 30/10/2020 | Insolvent |
| THORBURN COLQUHOUN HOLDINGS LIMITED | SC085696 | 03/10/2018 | 30/10/2020 | Not Trading |
| URS CORPORATION GROUP LIMITED | 05639381 | 31/12/2012 | 30/10/2020 | One Red Flag |
| URS CORPORATION LIMITED | SC118271 | 19/02/2019 | 30/10/2020 | Gold |
| WOODWARD-CLYDE LIMITED | SC136353 | 03/10/2018 | 30/10/2020 | Dissolved |