| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| 14000 & ONE SOLUTIONS LIMITED | 03745047 | 03/05/2011 | Dissolved |
| ALLIANCE PLANNING LIMITED | 06694185 | 10/09/2014 | Dissolved |
| DISCIMUS LIMITED | 06985526 | 08/08/2009 | Dissolved |
| DOY WEBSTER (HOLDINGS) LIMITED | 03175043 | 03/05/2011 | Dissolved |
| DWP CONSULTING LIMITED | 03682096 | 03/05/2011 | Dissolved |
| ERNEST GREEN PARTNERSHIP LIMITED | 01871269 | 03/05/2011 | Dissolved |
| FARNINGHAM MCCREADIE PARTNERSHIP LIMITED | SC209454 | 03/05/2011 | Dissolved |
| FISHER WILSON PLANNING LIMITED | 03753182 | 03/05/2011 | Dissolved |
| GLEEDS CORPORATE SERVICES LIMITED | 03547158 | 02/03/2020 | One Red Flag |
| HAWTHORNE KAMM LIMITED | 02066641 | 03/05/2011 | Dissolved |
| INDEPENDENT TRANSPORT CONSULTANTS LIMITED | 02941756 | 03/05/2011 | Dissolved |
| LANLEY PROPERTY DEVELOPMENTS LIMITED | 10229673 | 01/11/2016 | Dissolved |
| SAVELL BIRD & AXON LIMITED | 06002232 | 03/05/2011 | Dissolved |
| TWEEDS PROJECT SERVICES LTD. | 03033165 | 03/05/2011 | Dissolved |
| WHITE YOUNG GREEN QUEST TRUSTEE LIMITED | 04387285 | 12/12/2011 | Dissolved |
| WHITE YOUNG TRUSTEE LIMITED | 02579388 | 12/12/2011 | Dissolved |
| WYG 22 LIMITED | 03076421 | 03/05/2011 | Dissolved |
| WYNTHOMASGORDONLEWIS LIMITED | 03837186 | 03/05/2011 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ALLIANCE ENVIRONMENT AND PLANNING LIMITED | 03598361 | 30/03/2015 | 31/10/2019 | Silver |
| ARNDALE 22 LIMITED | 08514303 | 02/05/2013 | 23/05/2013 | Dissolved |
| DELTA PARTNERSHIP SOLUTIONS LIMITED | 04046958 | 29/09/2016 | 31/10/2019 | Dissolved |
| FMW CONSULTANCY LTD | 05760849 | 08/06/2015 | 31/10/2019 | Silver |
| GLEEDS CORPORATE SERVICES LIMITED | 03547158 | 02/03/2020 | 01/12/2024 | One Red Flag |
| INTERNATIONAL ECONOMIC & ENERGY CONSULTING LIMITED | 02281002 | 03/05/2011 | 31/10/2019 | Dissolved |
| INTERNATIONAL MANAGEMENT CONSULTANTS LIMITED | 01761585 | 03/01/2018 | 31/10/2019 | Dissolved |
| MANAGEMENT CONSULTANTS GROUP LIMITED | 03462585 | 03/05/2011 | 31/10/2019 | Dissolved |
| NEIL ALLEN ASSOCIATES LIMITED | 06165280 | 18/05/2018 | 31/10/2019 | Silver |
| NORTH ASSOCIATES (CUMBRIA) LIMITED | 07493435 | 29/10/2015 | 31/10/2019 | Amber |
| SIGNET PLANNING LIMITED | 05214986 | 05/01/2016 | 11/05/2020 | Amber |
| TAYLOR & HARDY LIMITED | 03977505 | 29/10/2015 | 31/10/2019 | Silver |
| TETRA TECH ENVIRONMENT PLANNING TRANSPORT LIMITED | 03050297 | 12/07/2019 | 31/10/2019 | Not Trading |
| TETRA TECH ENVIRONMENTAL AND PLANNING (NORTHERN IRELAND) LIMITED | NI050736 | 18/05/2012 | 31/10/2019 | Not Trading |
| TETRA TECH INTERNATIONAL DEVELOPMENT BV | FC034786 | 21/11/2017 | 16/01/2018 | Bronze |
| TETRA TECH LIMITED | 01959704 | 15/01/2018 | 31/10/2019 | Silver |
| TETRA TECH MANAGEMENT SERVICES (NORTHERN IRELAND) LIMITED | NI021970 | 18/05/2012 | 31/10/2019 | Not Trading |
| TETRA TECH MANAGEMENT SERVICES LIMITED | 04807864 | 12/07/2019 | 31/10/2019 | Not Trading |
| TETRA TECH PLANNING LIMITED | 05241035 | 05/01/2016 | 31/10/2019 | Not Trading |
| TRENCH FARROW LIMITED | 01433914 | 03/05/2011 | 31/10/2019 | Amber |
| UPPER QUARTILE LLP | SO301345 | 13/07/2017 | 31/10/2019 | Dissolved |
| WHITE YOUNG GREEN INTERNATIONAL LIMITED | 03734619 | 03/05/2011 | 31/10/2019 | Not Trading |
| WHITE YOUNG GREEN LIMITED | 05111508 | 03/05/2011 | 31/10/2019 | Not Trading |
| WYG ADVISORY LIMITED | 10705397 | 03/04/2017 | 31/10/2019 | Not Trading |
| WYG CONSULTING LIMITED | 10470582 | 09/11/2016 | 31/10/2019 | Not Trading |
| WYG ENGINEERING (NORTHERN IRELAND) LIMITED | NI020346 | 18/05/2012 | 31/10/2019 | Insolvent |