| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| China Trade Centre Ltd | 02842127 | 15/09/1993 | Dissolved |
| Followspruce Ltd | 02759296 | 05/11/1992 | Dissolved |
| HAMILTON ASSOCIATES ARCHITECTS LIMITED | 04996202 | 16/12/2003 | Dissolved |
| HAMILTONS ARCHITECTS INTERNATIONAL LIMITED | 04995031 | 02/02/2004 | Dissolved |
| HAMILTONS ARCHITECTS LIMITED | 06900116 | 08/05/2009 | Gold |
| HAMILTONS PROJECTS LIMITED | 04953492 | 05/11/2003 | Dissolved |
| HAMILTONS TOTAL DESIGN LTD | 02690213 | 04/03/1992 | Dissolved |
| Hamilton Associates Bristol Ltd | 02395716 | 31/08/1991 | Dissolved |
| Hamilton Brown Associates Limited | 02772814 | 07/01/1993 | Dissolved |
| Hamilton Church Ltd. | 02751739 | 20/10/1992 | Dissolved |
| Hamilton Gill Associates Limited | 02257101 | 13/10/1991 | Dissolved |
| Hamiltons Holdings Ltd | 06981403 | 29/10/2009 | Dissolved |
| KAMVARI & HAMILTONS LTD | 06951875 | 03/07/2009 | Dissolved |
| London & Oriental Management Co Ltd | 02680244 | 23/01/1993 | Dissolved |
| PRP + HAMILTONS LIMITED | 11781694 | 22/01/2019 | Dissolved |
| Perseus Developments Ltd | 04785060 | 08/07/2003 | Dissolved |
| Perseus Investments Ltd | 04807871 | 08/07/2003 | Dissolved |
| Praiseraise Limited | 02772818 | 12/01/1993 | Dissolved |
| Tuscan Lettings Ltd | 05087443 | 29/03/2004 | Dissolved |
| Warren Hamilton International Consultancy Services Ltd | 02805619 | 13/09/1993 | Dissolved |
| Webpitch Ltd | 00951308 | 18/09/1992 | Dissolved |
| Wilton Innovations Limited | 02759289 | 09/11/1992 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Demandenergy Ltd | 02772000 | 16/12/1992 | 08/04/1994 | Dissolved |
| EASTER PROJECTS LIMITED | 02787006 | 05/02/1993 | 30/10/1993 | Dissolved |
| FLANAGAN LAWRENCE LIMITED | 01182202 | 31/12/1990 | 02/11/2009 | Bronze |
| HAMILTON ASSOCIATES REFURBISHMENT LTD | 05081236 | 26/04/2004 | 01/03/2010 | Insolvent |