| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| 117 SOUTH EAST ROAD (SOUTHAMPTON) MANAGEMENT COMPANY LIMITED | 06788447 | 12/01/2009 | Dissolved |
| ALIVE NATIONWIDE LTD | 16027918 | 18/10/2024 | Amber |
| ALLROUND PLANT LIMITED | 03041916 | 06/04/1995 | One Red Flag |
| Arch Limited | 02609215 | 09/05/1991 | Dissolved |
| BLANDFORD AUCTION ROOMS LLP | OC317951 | 23/02/2006 | Dissolved |
| BLAZE CONSTRUCTION (SOUTHAMPTON) LLP | OC374538 | 20/04/2012 | Dissolved |
| BLAZE CONSTRUCTION LIMITED | 02638533 | 16/08/1992 | Bronze |
| BLAZE PLANT HIRE LIMITED | 12839420 | 26/08/2020 | Gold |
| CARVER DEVELOPMENTS LIMITED | 04691918 | 13/03/2003 | Dissolved |
| EDEN COUNTRY HOMES LIMITED | 05507369 | 13/07/2005 | Dissolved |
| KELLS HOLDINGS LIMITED | 04394255 | 02/07/2002 | Gold |
| KOELBAAI LIMITED | 08789927 | 26/11/2013 | Dissolved |
| Keane & Reilly Ltd | 02027696 | 31/12/1992 | Dissolved |
| RIVERSIDE INDUSTRIAL PARK LIMITED | 10806364 | 07/06/2017 | Bronze |
| Roseburn Builders Ltd | 04409406 | 04/04/2002 | Dissolved |
| SHOLING PROPERTY DEVELOPMENT LIMITED | 06827986 | 24/02/2009 | Dissolved |
| Sholing Property Development Llp | OC341807 | 02/12/2008 | Dissolved |
| Troveland Ltd | 01849060 | 31/12/1992 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AEROPARK DEVELOPMENTS LIMITED | 02378751 | 03/05/1991 | 13/07/1993 | Bronze |
| BLAZE COMMERCIAL LIMITED | 04585337 | 08/11/2002 | 09/03/2004 | Gold |
| BLAZE COMMERCIAL LIMITED | 04585337 | 08/11/2002 | 04/09/2015 | Gold |
| BLAZE CONSTRUCTION LIMITED | 02638533 | 16/08/1992 | 05/03/2003 | Bronze |
| CARVER DEVELOPMENTS LIMITED | 04691918 | 13/03/2003 | 31/07/2003 | Dissolved |
| CEDAR COURT SOUTHAMPTON (2006) MANAGEMENT COMPANY LIMITED | 06059240 | 19/01/2007 | 19/02/2008 | Amber |
| CHILCOMB (WINCHESTER) LLP | OC402354 | 16/10/2015 | 31/01/2017 | Bronze |
| Carlton Construction Ltd | 04226597 | 06/06/2001 | 27/01/2004 | Dissolved |
| EVEREST PLANT LIMITED | 04797391 | 01/11/2005 | 12/07/2011 | Bronze |
| IWERNE MINSTER MANAGEMENT COMPANY (2006) LIMITED | 05886578 | 25/07/2006 | 01/10/2007 | Silver |
| KOELBAAI LTD | 07601854 | 05/01/2012 | 10/01/2013 | Dissolved |
| Michael Reilly (Civil Engineering Contractors) Limited | 02791008 | 17/02/1993 | 15/12/1993 | Dissolved |
| OAKMOUNT MANAGEMENT LIMITED | 02573326 | 17/05/1993 | 23/09/1994 | Silver |
| PACKHORSE BRIDGE MANAGEMENT COMPANY LIMITED | 04490050 | 19/07/2002 | 27/01/2004 | Gold |
| Roseburn Builders Ltd | 04409406 | 04/04/2002 | 10/07/2002 | Dissolved |
| SENTA PROPERTIES LLP | OC312453 | 30/03/2005 | 05/04/2011 | One Red Flag |
| SHILLINGSTONE LLP | OC402326 | 15/10/2015 | 31/01/2017 | Bronze |
| UTILI-LIGHT LIMITED | 06246608 | 08/08/2007 | 26/01/2009 | Silver |
| UTILI-LIGHT LIMITED | 06246608 | 14/05/2007 | 03/06/2011 | Silver |
| UTILITY SERVICE SOLUTIONS LIMITED | 07477156 | 23/12/2010 | 01/12/2018 | Bronze |