| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| AYR GAIETY PARTNERSHIP LIMITED | SC363209 | 28/07/2009 | Dissolved |
| BORDERLINE THEATRE COMPANY LIMITED (THE) | SC064588 | 27/01/2000 | One Red Flag |
| Rehab Goodwill (Glasgow) Ltd | SC066230 | 26/05/2003 | Dissolved |
| Rehab Remanufacturing Services Ltd | SC142501 | 26/05/2003 | Dissolved |
| THE SPACE PLACE (PRESTWICK) LIMITED | SC185796 | 14/05/1998 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AYR UNITED FOOTBALL ACADEMY LIMITED | SC294025 | 07/10/2006 | 21/12/2017 | Silver |
| AYRSHIRE DEVELOPMENT FUND LIMITED | SC126942 | 01/11/2002 | 31/03/2007 | Dissolved |
| AYRSHIRE FESTIVAL LIMITED THE | SC075267 | 30/09/1989 | 30/09/1991 | Dissolved |
| Ayr Locality Enterprise Resources Trust Ltd | SC086336 | 30/04/1991 | 07/05/1992 | Dissolved |
| BORDERLINE THEATRE COMPANY LIMITED (THE) | SC064588 | 27/06/1996 | 27/05/1999 | One Red Flag |
| DRUMCHAPEL L.I.F.E. | SC230928 | 29/04/2002 | 07/06/2004 | Amber |
| Direct Time Ltd | 02365853 | 10/11/2008 | 30/10/2009 | Dissolved |
| GLASGOW PRESTWICK AIRPORT LIMITED | SC135362 | 04/02/1992 | 24/10/1997 | One Red Flag |
| HAVEN PRODUCTS LIMITED | SC023852 | 30/06/2004 | 30/10/2009 | Silver |
| IRVINE BAY URBAN REGENERATION COMPANY | SC310674 | 19/10/2006 | 01/10/2010 | Dissolved |
| MAY-TAG LIMITED | SC112692 | 09/08/2004 | 28/06/2012 | Dissolved |
| MOMENTUM CARE SERVICES | SC182092 | 05/01/2004 | 30/10/2009 | Dissolved |
| Mountwest 591 Ltd | SC176435 | 21/08/2007 | 30/10/2009 | Dissolved |
| PRESTWICK AVIATION HOLDINGS LIMITED | SC130620 | 13/02/1992 | 24/08/1997 | Not Trading |
| PRESTWICK TENNIS AND FITNESS | SC273788 | 24/09/2004 | 21/11/2012 | Bronze |
| REHAB SCOTLAND LIMITED | SC229520 | 16/10/2008 | 30/10/2009 | Dissolved |
| REHAB UK | 03005672 | 28/06/2007 | 30/10/2009 | Dissolved |
| SCOTTISH ENTERPRISE AYRSHIRE | SC130872 | 05/04/2002 | 31/03/2007 | Not Trading |
| TBG LEARNING LTD | 02236017 | 10/11/2008 | 30/10/2009 | Silver |
| THE CHASELEY TRUST | 04344486 | 18/07/2007 | 30/10/2009 | Silver |
| THE KILMARNOCK FOOTBALL CLUB LIMITED | SC006219 | 21/04/1999 | 31/05/2001 | Silver |
| THE TRAINING AND BUSINESS GROUP LIMITED | 02367127 | 10/11/2008 | 30/10/2009 | Dissolved |
| The Caring Business (Scotland) Ltd | SC282967 | 21/08/2007 | 30/10/2009 | Dissolved |
| The Training & Business Factory (South London) Ltd | 02460824 | 10/11/2008 | 30/10/2009 | Dissolved |
| YOU DECIDE LIMITED | SC306061 | 20/11/2006 | 27/05/2008 | Dissolved |