| Current (1) |
| Management | 2024 |
| Former (20) |
| Management | 1986 – 1990 |
| Founder | 1986 – 2001 |
| Management | 1986 – 1998 |
| Management | 2001 – 2001 |
| Management | 2003 – 2004 |
| Management | 1986 – 1988 |
| Management | 1986 – 1988 |
| Management | 1986 – 1990 |
| Management | 2004 – 2013 |
| Management | 2015 – 2017 |
| Chief Executive Officer | 2002 – 2003 |
| Management | 2017 – 2017 |
| Management | 1998 – 2001 |
| Management | 2017 – 2018 |
| Management | 2013 – 2015 |
| Founder | 1986 – 2001 |
| Management | 2018 – 2024 |
| Management | 1986 – 1989 |
| Management | 1986 – 1991 |
| Founder | 1986 – 2001 |