| Company | Timeline | Status | |
| Certification International Limited Secretary • Unreported | 28 Feb 1995←17 Years→19 Dec 2012 | Active | |
| Socotec Certification United Kingdom Limited Secretary • Unreported | 20 Feb 1992←20 Years→19 Dec 2012 | Active | |
| Neville-Clarke International Limited Secretary • Unreported | 11 Jan 1992←3 Years→8 Jan 1996 | Active | |
