![](https://www.giwa.org.au/wp-content/uploads/2024/01/Peter-Nash.png)
Peter Nash
Chief Executive Officer
Peter Nash was officially appointed in June 2021 after having commenced in December 2020 as Acting CEO.
![](https://www.giwa.org.au/wp-content/uploads/2024/01/Ian-L350-x-500-px-350x350.png)
Ian Longson
Project Coordinator
Ian Longson is currently providing project coordinator support to GIWA.
![](https://www.giwa.org.au/wp-content/uploads/2023/08/amanda-350x350.jpg)
Amanda Collett
Marketing & Communications Manager
Amanda has over 25 years of experience in marketing, events, and communications in Australia and London.
![](https://www.giwa.org.au/wp-content/uploads/2024/01/Debbie-Boxall-350-x-500-px-350x350.png)
Deborah Boxall
Program Manager
Deborah is a skilled events, marketing, and communications specialist with 17-years’ experience, including more than a decade within the Australian agricultural industry.
![](https://www.giwa.org.au/wp-content/uploads/2024/01/Margie-350-x-500-px-350x350.png)
Margie Walkerden
Bookkeeper
Margie Walkerden is a qualified and registered Bookkeeper/BAS agent with extensive knowledge in MYOB, Xero and several other accounting and payroll programs.
![](https://www.giwa.org.au/wp-content/uploads/2024/01/Nadia-C350-x-500-px-350x350.png)
Nadia Chiang
Administration Manager
Nadia joined GIWA in December 2022 and has over 20 years of diversified company operations experience.