Executive and Board
Education and Events Coordinator
Georgia Campbell
Georgia is pivotal in planning and executing our educational programs and events, including workshops, webinars, the biennial conference and the National Tour. In addition to education and events, Georgia works closely with our Executive Officer to support the website, marketing, operations, industry and member engagement initiatives.
Outside AGOSCI, Georgia is a speech pathologist, bringing her clinical expertise to her role. Passionate about fostering inclusion and knowledge sharing, Georgia’s work supports AGOSCI’s mission to empower and connect the AAC community.
Georgia is based in Perth and works for AGOSCI on Monday, Thursday and Friday. Georgia can be contacted on 0498 796 661 noting the time zone difference in Perth (AWST).
Executive Officer
Andrew Hetherington
Andrew is responsible for implementing AGOSCI’s strategy, managing operations, and ensuring effective service delivery to our members. His role is focused on expanding our mission and advocating for AAC members, users and their families.
Andrew brings 30 years of primarily self-employed business experience with a career spanning financial services, education and technology. His expertise is strategic growth, governance, and business optimisation. He believes culture trumps everything.
Andrew is based in Brisbane and can be contacted on 0411 597 927.
AGOSCI Committee
Chair
Darryl Sellwood
Darryl has been the Chair of AGOSCI since May 2023, heading up our mission to support individuals who use AAC. In this role, he advocates for AAC users, organises events, and fosters connections with stakeholders to promote communication inclusion across Australia.
Professionally, Darryl is a Scholarly Fellow at Flinders University, contributing to curriculum development in Disability Studies. He completed his PhD in 2019, focusing on the experiences of individuals with complex communication needs in romantic relationships. As a researcher with lived experience using AAC, he brings a unique perspective to his work, aiming to enhance the quality of life for people with disabilities.
Darryl has presented numerous conference papers and keynote addresses both in Australia and internationally, sharing his insights on AAC and disability studies.
Treasurer
Micheala Banks
Michaela serves as the Treasurer of AGOSCI, managing budgets, financial reporting, and compliance to support our mission of empowering individuals who use AAC. She is also the General Manager of Two-Way Street, where she oversees all aspects of the business, from marketing to customer experience, to deliver innovative and practical communication solutions for individuals with complex needs.
Michaela holds a Master of Business Administration and is a Graduate of the Australian Institute of Company Directors. Her personal experience as a parent of an AAC user fuels her passion for inclusive schools and communities, driving her commitment to meaningful advocacy. She is a dedicated advocate, presenting at conferences, facilitating research focus groups, and sharing her insights through blogging and training initiatives.
Secretary
Nicole Kane
Nicole is the incoming Board Secretary, bringing over a decade of experience as the founder and operator of a successful administrative support and staffing agency. With a strong background in organisational efficiency and team support, she is enthusiastic about mission-driven work and committed to fostering collaborative, well-structured environments.
While she prefers to work behind the scenes, Nicole is known for her precision, reliability, and calm leadership. She’s eager to expand her knowledge of the AAC space and is passionate about helping amplify its mission and reach.
Director
Jason Kettlewell
Jason is a seasoned professional with over 20 years of experience spanning the public sector, private sector, learning, and technology industries. He has held strategic leadership roles across business transformation, customer engagement, and digital innovation, with a strong focus on service delivery and operational excellence. Jason brings deep insight into business operations and enterprise systems, particularly in the context of technology-driven change.
Director
Gary Linton
Gary is founder/Managing Director of Linton Howard with over 30 years’ experience successfully managing and growing a diverse range companies large and small. He has had over 20 years’ experience in the Not For Profit, Resources, Manufacturing and other sectors in the areas of governance, finance/profit improvement, strategy, people and culture and has managed, consulted to/been a director of many companies large and small across Australia. In addition to his corporate and consulting background, he has also been a mindfulness practitioner for almost 50 years, with a daily meditation practice drawing on traditional Yoga and Zen modalities.
Director
Nicole Lees
Nicole Lees is a passionate advocate for inclusive communication and a strategic leader in marketing and organisational growth. As the Founder and Chief Marketing Officer of Marketique, she brings over 25 years of experience in strategic marketing, digital strategy, branding, and communications to her role with AGOSCI. Nicole’s expertise in connecting organisations with diverse audiences informs her commitment to promoting the visibility and rights of people with complex communication needs.
Driven by AGOSCI’s values of diversity, integrity, and community, Nicole is particularly interested in expanding public awareness of AAC and inclusive communication through impactful storytelling, partnerships, sponsorships, and digital outreach. With a background spanning both corporate and community sectors, she contributes strategic insight to help strengthen AGOSCI’s reach, engagement, and long-term impact.
Nicole joined the AGOSCI Board in 2025 and is thrilled to support the organisation’s vision of a world where all communication modes are respected and supported.
AAC Communicator Representative
Lisa Lehmann
Lisa is our AAC Communicator Representative, bringing over 15 years of experience in self-advocacy and systemic advocacy. As a social change agent, Lisa is passionate about social justice and ensuring everyone has real and valued lives. She combines her advocacy expertise with creativity, using her fashion background—where she earned an Associate Diploma—to challenge stereotypes and promote a positive image of disability with her ‘stylin’ fashion sense.
Lisa has worked in both government and community sectors, mentors young people, and is an accomplished public speaker on topics she’s deeply passionate about.
A recipient of the prestigious Words+/ISAAC Outstanding Consumer Lecture award, Lisa continues championing the rights and inclusion of people with disabilities.
Early Career Coordinator
Georgia Camilleri
Georgia is AGOSCI's Early Careers Coordinator, advocating for individuals who use Augmentative and Alternative Communication and supporting members across the state. She is a Certified Practising Speech Pathologist and founded Hinterland Speech Pathology, based on the Sunshine Coast. Georgia specialises in providing personalised communication solutions for individuals with complex communication needs, offering coaching, direct AAC intervention, and home visits.
Georgia is dedicated to enhancing communication access and inclusion, working closely with clients across various settings, including aged care, disability services, and workplaces. She is committed to empowering individuals to achieve their communication goals and actively contributes to the AAC community through her role with AGOSCI.
In Focus Editor
Sheridan Forster
Sheridan is responsible for producing the bi-annual 'AGOSCI In Focus' Magazine. This includes the magazine layout, and sourcing and editing content with the assistance of the editorial committee.
Sheridan has over 25 years experience as a speech therapist. She currently balances private practice, university teaching, and writing, focusing on improving interactions between support staff and adults with profound intellectual and multiple disabilities—a topic she explored in depth during her PhD, completed in 2011. Since 1997, Sheridan has worked across government, non-government, and education sectors, consistently dedicating her efforts to optimising shared communication through methods including body language, facial expressions, sounds, words, pictures, touch, and more.