| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BALKAN PROPERTIES LIMITED | 09761199 | 03/09/2015 | Dissolved |
| BARNES WALLIS PARK LIMITED | 09834720 | 21/10/2015 | Dissolved |
| CARTNER PROPERTY SERVICES LIMITED | 07411039 | 18/10/2010 | Dissolved |
| DISCOVERY PARK (4) LIMITED | 08235724 | 01/10/2012 | Dissolved |
| DISCOVERY PARK (ENERGY) LIMITED | 10025720 | 25/02/2016 | Dissolved |
| DISCOVERY PARK (INSTRO) LIMITED | 10006590 | 16/02/2016 | Dissolved |
| DISCOVERY PARK (LAKESIDE) LIMITED | 10007015 | 16/02/2016 | Dissolved |
| EAST KENT SPORTS VILLAGE LIMITED | 09834837 | 21/10/2015 | Dissolved |
| EASTLAND (WYNYARD) LIMITED | 09214367 | 04/03/2015 | Dissolved |
| HELIOS (CITY) LTD | 03851466 | 09/07/2010 | Dissolved |
| HELIOS (INDUSTRIAL DEVELOPMENTS) LTD | 03452620 | 09/07/2010 | Dissolved |
| HELIOS (NETPARK) LTD | 04124976 | 09/07/2010 | Dissolved |
| HELIOS BALKANS LIMITED | 08790556 | 26/11/2013 | Dissolved |
| HELIOS DEVELOPMENT MANAGEMENT LTD | 03787018 | 09/07/2010 | Dissolved |
| HELIOS EASTERN EUROPE LIMITED | 08790609 | 26/11/2013 | Dissolved |
| HELIOS REAL ESTATE LIMITED | 07980931 | 07/03/2012 | Amber |
| HUTC LIMITED | 10084660 | 24/03/2016 | Dissolved |
| INVICTA ASSET MANAGEMENT LIMITED | 09170974 | 12/08/2014 | Silver |
| LEGACY (NE) LTD | 09882723 | 20/11/2015 | Amber |
| MANSTON PARK LIMITED | 09803434 | 01/10/2015 | Dissolved |
| MATCH DAY CENTRES LTD | 07207875 | 07/10/2010 | One Red Flag |
| NATZO LIMITED | 07516975 | 04/02/2011 | Dissolved |
| NATZONE LIMITED | 08095201 | 06/06/2012 | Dissolved |
| PARKSERVE LIMITED | 08175172 | 10/08/2012 | Dissolved |
| SELENE PROPERTY SERVICES LIMITED | 03253785 | 25/06/2008 | Dissolved |
| STONE HILL PARK LIMITED | 09223403 | 19/09/2014 | Silver |
| STRATEGIC SITES MIDDLESBROUGH LIMITED | 07759492 | 01/09/2011 | Dissolved |
| T C CATERING LIMITED | 07679612 | 23/06/2011 | Dissolved |
| TRAXPARK MANAGEMENT LIMITED | 03998040 | 09/07/2010 | Dissolved |
| TUNSTALL HOMES LIMITED | 08703603 | 16/05/2014 | Silver |
| Tameside Park Ltd | 03072170 | 28/03/1996 | Dissolved |
| WMC NORTH EAST LIMITED | 08514813 | 02/05/2013 | Dissolved |
| WYNYARD FOOD AND CATERING LIMITED | 07680860 | 08/07/2011 | Dissolved |
| WYNYARD PARK HOLDINGS LIMITED | 10876645 | 20/07/2017 | Amber |
| WYNYARD REGENERATION SERVICES LIMITED | 07750488 | 23/08/2011 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AIC STEEL EUROPE LIMITED | 08044764 | 25/04/2012 | 02/07/2013 | Dissolved |
| DISCOVERY PARK (NORTH) LIMITED | 08235332 | 01/10/2012 | 14/11/2016 | Gold |
| DISCOVERY PARK (SOUTH) LIMITED | 08692535 | 16/09/2013 | 12/06/2018 | Bronze |
| DISCOVERY PARK (WEST) LIMITED | 08235450 | 01/10/2012 | 12/06/2018 | Gold |
| DISCOVERY PARK LIMITED | 08089816 | 30/05/2012 | 14/11/2016 | Silver |
| DURHAM CITY ASSOCIATION FOOTBALL CLUB LIMITED | 04483009 | 04/11/2005 | 14/12/2009 | Bronze |
| DURHAM UNIVERSITY ENTERPRISE LTD | 02830763 | 03/12/2002 | 01/08/2007 | One Red Flag |
| Durham Pipeline Technology Ltd | 04208985 | 28/02/2003 | 29/08/2008 | Dissolved |
| FLAXBY PARK LIMITED | 10129702 | 18/04/2016 | 30/01/2023 | One Red Flag |
| HELIOS (PARTNERSHIPS) LIMITED | 03759498 | 09/07/2010 | 20/11/2015 | Dissolved |
| HELIOS GULLWING ASSET MANAGEMENT LIMITED | 05191616 | 28/07/2004 | 01/04/2012 | Dissolved |
| HELIOS GULLWING ASSET MANAGEMENT NO. 2 LIMITED | 05863839 | 24/11/2006 | 01/04/2012 | Dissolved |
| HELIOS GULLWING CI LIMITED | 05232290 | 16/09/2004 | 01/04/2012 | Dissolved |
| HELIOS WYNYARD LIMITED | 07101160 | 31/03/2010 | 19/11/2015 | Dissolved |
| HELIOSLOUGH LIMITED | 05026832 | 06/04/2004 | 01/02/2011 | Silver |
| HGAM NOMINEE 1 LIMITED | 05576369 | 28/09/2005 | 01/04/2012 | Dissolved |
| HGAM NOMINEE 2 LIMITED | 05576361 | 29/09/2005 | 01/04/2012 | Dissolved |
| HGCI NO. 2 LIMITED | 06007488 | 08/12/2006 | 01/04/2012 | Dissolved |
| HUDSON LUCAS CONSULTANTS LIMITED | 06875713 | 13/04/2009 | 01/10/2009 | Dissolved |
| MITCHELL & ORANGE SERVICES LIMITED | 07597394 | 08/04/2011 | 29/06/2015 | Dissolved |
| PARKPLUS LIMITED | 08175432 | 10/08/2012 | 16/08/2013 | Gold |
| PRSUK CAPITAL LIMITED | 09306948 | 12/11/2014 | 31/10/2016 | Amber |
| REVOLUTION PARK MANAGEMENT COMPANY LIMITED | 05935377 | 09/07/2010 | 30/09/2010 | One Red Flag |
| SEDD LEISURE LIMITED | 04106857 | 04/11/2005 | 15/11/2011 | Dissolved |
| SELENE PROPERTY SERVICES LIMITED | 03253785 | 09/09/2003 | 11/02/2008 | Dissolved |
| SHOE AND BOX LIMITED | 03186420 | 11/02/1997 | 12/11/2012 | Dissolved |
| TECHNICAL ENGINEERING SERVICES (NATIONWIDE) LIMITED | 07144576 | 01/04/2010 | 20/06/2011 | Dissolved |
| THORNEX LIMITED | 09046539 | 19/05/2014 | 14/10/2024 | One Red Flag |
| TUNSTALL SECURITIES LIMITED | 08944971 | 18/03/2014 | 27/10/2016 | Dissolved |
| UK STRATEGIC PARTNERSHIP LIMITED | 06319280 | 16/08/2011 | 08/12/2014 | Dissolved |
| ZONAT LIMITED | 08855346 | 21/01/2014 | 03/05/2017 | One Red Flag |