| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ASHACT LIMITED | 03860676 | 12/06/2015 | Dissolved |
| BTP (1992) LIMITED | 02387786 | 12/06/2015 | Dissolved |
| E C HARRIS PROJECT MANAGEMENT LIMITED | 01723807 | 01/03/2014 | Dissolved |
| HARRIS, FRANKLIN & ANDREWS LIMITED | 02597076 | 01/03/2014 | Dissolved |
| MARCUS HODGES ENVIRONMENT LIMITED | 00616332 | 12/06/2015 | Dissolved |
| RPA QUANTITY SURVEYORS LIMITED | 03495060 | 12/06/2015 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ACER JOHN TAYLOR LIMITED | 01348874 | 12/06/2015 | 21/03/2018 | Dissolved |
| ACER PARTNERSHIPS LIMITED | 02561362 | 12/06/2015 | 21/03/2018 | Dissolved |
| ACER SIR BRUCE WHITE LIMITED | 02560699 | 12/06/2015 | 21/03/2018 | Dissolved |
| ARCADIS (UK) LIMITED | 01093549 | 01/03/2014 | 21/01/2019 | Gold |
| ARCADIS ASSET MANAGEMENT LIMITED | 07476870 | 14/08/2014 | 21/03/2018 | Dissolved |
| ARCADIS CONSULTING (UK) LIMITED | 02212959 | 12/06/2015 | 21/01/2019 | Silver |
| ARCADIS CONSULTING AUSTRALIA HOLDINGS LIMITED | 09818546 | 12/10/2015 | 21/03/2018 | N/A |
| ARCADIS CONSULTING EUROPE LIMITED | 02273559 | 26/02/2015 | 01/01/2020 | Silver |
| ARCADIS CONSULTING GROUP LIMITED | 02115472 | 26/02/2015 | 21/03/2018 | One Red Flag |
| ARCADIS CONSULTING HOLDINGS LIMITED | 04052317 | 25/02/2015 | 01/01/2020 | Silver |
| ARCADIS GEN UK (SEAMS) LIMITED | 04097101 | 02/01/2018 | 12/08/2019 | Amber |
| ARCADIS GROUP LIMITED | 02950545 | 01/03/2014 | 21/03/2018 | Silver |
| ARCADIS GULF LIMITED | 01934617 | 01/03/2014 | 09/01/2017 | Dissolved |
| ARCADIS GULF O&G LIMITED | 01803667 | 01/03/2014 | 01/11/2016 | Dissolved |
| ARCADIS HUMAN RESOURCES LIMITED | 03021358 | 01/03/2014 | 21/03/2018 | Silver |
| ARCADIS INTERNATIONAL HOLDINGS LIMITED | 02824756 | 01/03/2014 | 21/03/2018 | Silver |
| ARCADIS NUCLEAR SAFETY AND RISK CONSULTANCY LIMITED | 04966931 | 12/06/2015 | 21/03/2018 | Dissolved |
| ARCADIS SERVICES LIMITED | 00775541 | 01/08/2008 | 01/08/2010 | Dissolved |
| ARNOLD PROJECT SERVICES LIMITED | 02077545 | 01/03/2014 | 21/03/2018 | Dissolved |
| CHRISTAL CONSTRUCTION MANAGEMENT LIMITED | SC228432 | 05/09/2014 | 21/03/2018 | Dissolved |
| CONSTRUCTION INDUSTRY RELIEF, ASSISTANCE AND SUPPORT FOR THE HOMELESS AND HOSPICES LIMITED | 03175906 | 12/08/2014 | 14/05/2024 | Gold |
| CORPORATE PROPERTY ADVISERS LIMITED | 06919195 | 07/04/2014 | 21/03/2018 | Dissolved |
| CRESSWELL ASSOCIATES (ENVIRONMENTAL CONSULTANTS) LIMITED | 02282693 | 12/06/2015 | 21/03/2018 | Dissolved |
| E C HARRIS PROJECT MANAGEMENT LIMITED | 01723807 | 01/08/2008 | 01/08/2010 | Dissolved |
| EC HARRIS (UK) LIMITED | 05013681 | 01/03/2014 | 21/03/2018 | Dissolved |
| EEBEE PARTNERS LLP | OC304988 | 01/10/2003 | 19/12/2024 | Gold |
| ESR TECHNOLOGY LIMITED | 05462871 | 12/06/2015 | 07/12/2016 | Bronze |
| HYDER 1 LIMITED | 02480999 | 12/06/2015 | 21/03/2018 | Dissolved |
| HYDER CONSULTING GROUP HOLDINGS LIMITED | 00768087 | 28/07/2015 | 21/03/2018 | Gold |
| HYDER CONSULTING OVERSEAS HOLDINGS LIMITED | 04723408 | 25/02/2015 | 21/03/2018 | Amber |
| HYDER CONSULTING OVERSEAS LIMITED | 03745578 | 25/08/2015 | 21/03/2018 | Insolvent |
| SEAMS (GLOBAL) LIMITED | 09279126 | 02/01/2018 | 12/08/2019 | Amber |
| SOMER RENTS LIMITED | 06882880 | 01/01/2016 | 21/03/2018 | Dissolved |
| SR3C MANAGEMENT LIMITED | 08441222 | 12/06/2015 | 21/03/2018 | Dissolved |
| ULTRA EVC LIMITED | 03021356 | 01/03/2014 | 21/03/2018 | Gold |
| VALUE MANAGEMENT LIMITED | 02756243 | 01/08/2008 | 01/08/2010 | Dissolved |
| VECTRA (MIDDLE EAST) LIMITED | 04778774 | 01/01/2015 | 01/11/2016 | Insolvent |
| WPD TRADEMARKS LIMITED | 05667666 | 23/12/2015 | 21/03/2018 | Not Trading |