| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| HARPENDEN SPORTS GROUND,LIMITED(THE) | 00205625 | 11/04/2005 | Gold |
| HARPENDEN SPORTS GROUND,LIMITED(THE) | 00205625 | 07/12/1994 | Gold |
| Kurk Warfield Limited | 02718912 | 05/12/2000 | Dissolved |
| THE RJB PARTNERSHIP LLP | OC428588 | 23/08/2019 | Dissolved |
| WARFIELD & BULL LLP | OC400190 | 04/06/2015 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AMPTHILL & DISTRICT COMMUNITY RUGBY CLUB LIMITED | 00629333 | 04/09/2006 | 06/01/2025 | Silver |
| AMPTHILL SPORTS GROUND LIMITED | 07504714 | 25/01/2011 | 06/01/2025 | Bronze |
| INSEQUA LIMITED | 08174453 | 09/08/2012 | 01/09/2012 | Amber |
| SPILLAWAY EUROPE LIMITED | 04239922 | 18/11/2004 | 31/10/2013 | Dissolved |
| SPILLAWAY INTERNATIONAL LIMITED | 04719907 | 02/04/2003 | 31/10/2013 | Dissolved |
| SPILLAWAY UK LIMITED | 04846291 | 18/11/2004 | 31/10/2013 | Dissolved |
| SQUARE E LIMITED | 07208359 | 30/03/2010 | 15/04/2010 | Dissolved |
| T W SQUARED DEVELOPMENTS LIMITED | 08641330 | 07/08/2013 | 31/01/2018 | Bronze |