igsa Team

Sonia Berry

IGSA Executive Officer

Sonia joined IGSA as the Executive Officer in 2016. Sonia is a lawyer, mediator and consultant who has worked within the school sector for over 25 years. She has a passion for the education of girls.

Matthew Mulroney

IGSA Director of Sport

Matt joined IGSA as Director of Sport in 2021, and brings with him over a decade of experience as a sport administrator, teacher and Head of Sport in the IGSA Sport and AAGPS systems. Matt has a deep passion for sport and creating opportunities for movement and physical activity for girls at all levels.

Kate Howitt

IGSA Director of Sport

Kate joined IGSA as Director of Sport in 2023, and brings with her over two decades of experience in sports administration, venue and event management, and sports administration as a Head of Sport in the IGSA system. She is also a former student of an IGSA school and is passionate about providing sporting and leadership opportunities for girls and young women.

Melissa O’Donnell

IGSA Administration Officer

Melissa joined IGSA in 2020 in the role of Administrative Officer. She has wide-ranging experience in executive assistance, office administration and accounts and enjoys supporting her fellow team members. Melissa has a strong interest in sport and is a keen golfer.

Tereza Mostarac

IGSA Accountant

Tereza joined IGSA in 2021 in the role of Accountant. Her previous experience was in Finance and Management. She has a keen interest in supporting opportunities that enable children to get involved and to achieve their personal best.

Jenny Walton

Administration Manager

Jenny joined IGSA in 2008 and has been involved in enhancing the administration of our various sport, Archdale Debating and Festival of Speech competitions. As a former student of one of our schools, she is conscious of the benefits of inter school activities we offer, having experienced them herself.