| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| 4 VECTOR LIMITED | 10826460 | 18/02/2021 | Not Trading |
| BERKSHIRE MACADAMS LIMITED | 10465707 | 23/06/2020 | Not Trading |
| CONWAY AECOM LIMITED | 08309204 | 27/06/2020 | Gold |
| F M CONWAY LIMITED | 00706445 | 23/06/2020 | Silver |
| F.M. CONWAY BUILDING AND MAINTENANCE LIMITED | 02701475 | 18/02/2021 | Not Trading |
| HAMPSHIRE MACADAMS LIMITED | 10482105 | 23/06/2020 | Not Trading |
| HAWBURY CLEANSING LIMITED | 01744007 | 18/02/2021 | Not Trading |
| HEATHROW ASPHALT LIMITED | 08662528 | 23/06/2020 | Not Trading |
| MAP16 ASSET MANAGEMENT LTD | 10554183 | 19/03/2021 | Silver |
| THE CONWAY CHARITABLE FOUNDATION | 08486506 | 07/11/2022 | Gold |
| THE LONDON PAVING COMPANY LIMITED | 04134374 | 18/02/2021 | Not Trading |
| TOPPESFIELD LIMITED | 05054176 | 01/03/2021 | Gold |
| UNITED ASPHALT (CROYDON) LIMITED | 06227783 | 23/06/2020 | Not Trading |
| UNITED ASPHALT (THEALE) LIMITED | 06227771 | 23/06/2020 | Not Trading |
| UNITED ASPHALT CONTRACTING LIMITED | 06711369 | 23/06/2020 | Not Trading |
| UNITED ASPHALT LIMITED | 06227761 | 23/06/2020 | Not Trading |
| UNITED CONCRETE LIMITED | 06711269 | 23/06/2020 | Not Trading |
| UNITED CONSTRUCTION MATERIALS LIMITED | 07611938 | 23/06/2020 | Not Trading |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CARDIFF BAY INFRASTRUCTURE COMPANY LIMITED | 04971860 | 02/03/2012 | 12/08/2015 | Dissolved |
| CI-ONE CONSTRUCTION LIMITED | 09451654 | 02/02/2017 | 01/04/2020 | Dissolved |
| DOVE BROTHERS LIMITED | 01521211 | 27/05/2015 | 12/08/2015 | Dissolved |
| EXPLORE 2050 ENGINEERING LIMITED | 05117890 | 12/02/2013 | 27/05/2015 | Gold |
| INTERSERVE RAIL LIMITED | 00110192 | 01/02/2017 | 01/04/2020 | Dissolved |
| ISG CONSTRUCTION LIMITED | 00450103 | 28/09/2015 | 31/10/2016 | Insolvent |
| ISG NORTHERN LIMITED | 00315305 | 28/09/2015 | 31/10/2016 | Strike Off |
| ISG SCOTLAND LIMITED | SC388876 | 28/09/2015 | 31/10/2016 | Dissolved |
| ISG SOUTH LIMITED | 07276092 | 28/09/2015 | 31/10/2016 | Insolvent |
| ISG WESTERN LIMITED | 09069850 | 28/09/2015 | 30/10/2016 | Dissolved |
| JOHN LAING CONSTRUCTION LIMITED | 00172161 | 27/05/2015 | 12/08/2015 | Amber |
| LAING CONSTRUCTION LIMITED | 03074000 | 27/05/2015 | 12/08/2015 | Gold |
| LAING ENGINEERING LIMITED | 01541508 | 27/05/2015 | 12/08/2015 | Gold |
| LAING LIMITED | 03637584 | 27/05/2015 | 12/08/2015 | Amber |
| LAING MANAGEMENT (SCOTLAND) LIMITED | SC075712 | 27/05/2015 | 12/08/2015 | Dissolved |
| LAING MANAGEMENT LIMITED | 01488784 | 27/05/2015 | 12/08/2015 | Dissolved |
| LAING O'ROURKE GROUP SERVICES LIMITED | 04309410 | 27/05/2015 | 12/08/2015 | Dissolved |
| LAING O'ROURKE INFRASTRUCTURE LIMITED | 04309441 | 12/02/2013 | 27/05/2015 | Gold |
| LAING O'ROURKE INTERIORS LIMITED | 04424130 | 07/08/2014 | 18/11/2014 | Dissolved |
| LAING O'ROURKE PROPERTIES (ERITH) LIMITED | 04531115 | 27/05/2015 | 12/08/2015 | Gold |
| LAING O'ROURKE RETAIL INVESTMENTS LIMITED | 05054497 | 02/03/2012 | 12/08/2015 | Dissolved |
| MALLING PRE-CAST LIMITED | 00586199 | 07/08/2014 | 18/11/2014 | Dissolved |
| O'ROURKE CIVIL ENGINEERING LIMITED | 02810023 | 27/05/2015 | 12/08/2015 | Gold |
| O'ROURKE LIMITED | 04244212 | 27/05/2015 | 12/08/2015 | Dissolved |
| O.C. SUMMERS LIMITED | 00969372 | 27/05/2015 | 12/08/2015 | Gold |
| PARAGON MANAGEMENT UK LIMITED | 05437375 | 02/02/2017 | 01/04/2020 | Not Trading |
| TILBURY DOUGLAS CONSTRUCTION LIMITED | 00303359 | 19/12/2016 | 01/04/2020 | Silver |
| TILBURY DOUGLAS ENGINEERING LIMITED | 03044398 | 02/02/2017 | 01/04/2020 | Silver |
| TILBURY WATER TREATMENT LIMITED | 02496037 | 01/02/2017 | 01/04/2020 | Not Trading |
| WHITTLE CONTRACTS LIMITED | 02047119 | 01/02/2017 | 01/04/2020 | Dissolved |
| ZETA-FORM GROUP HOLDINGS LTD. | 02558967 | 07/08/2014 | 18/11/2014 | Dissolved |
| ZETA-FORM LIMITED | 02318980 | 07/08/2014 | 18/11/2014 | Dissolved |