| Founding Deputy Leader | Australian Chamber Orchestra | 1974 - 1977 |
| Member | Academy of St Martin in the Fields | 1977 - 1980 |
| Concertmaster | Tasmanian Symphony Orchestra | 1980 - 1984 |
| Founder & Founding Leader | Australian String Quartet | 1985 - 1996 |
| Head of Strings | University of Melbourne | 1997 - 2006 |
| Faculty | Australian National Academy of Music | 2007 - 2014 |
| Artistic Director | Melbourne Chamber Orchestra | 2006 - 2021 |
William Hennessy
Major Positions Held