About Us


"Never doubt that a small group of thoughtful, committed citizens can change the world. Indeed, it is the only thing that ever has."

Charlie Syme

(Board Chair)

Charlie is the Marketing and Communications Manager at Sustainable Australia Fund and is an experienced consultant, with a wealth of experience creating and delivering bold campaigns for corporate, not-for-profit and emergent companies that are all looking to make a positive impact. Having worked extensively across both direct mail and digital marketing strategies for a diverse range of clients, he has a wealth of experience capturing and using data to drive engagement across all channels. Charlie's work is driven by the belief that everyone, from individuals to major corporations, can and must play an important role in shaping our world for the better. He's also a keen videographer, obscure sports fan and intrepid wanderer.

Michelle Halse

Michelle is the Director of Living Collaborations and specialises in facilitating collaborations across the world — including some of the largest global experiments in system-focused collaborative innovation across a diverse range of sectors. Michelle is an accredited partnership broker with 20 years of experience in social innovation, global health, international development, humanitarian skill-sharing and education, and deeply understands how to make collaborations transformative and impactful. Michelle loves yoga, singing and creating beautiful and edible gardens. 

Mireille Kayeye

Mireille Kayeye hails from Burundi and has more than eight years’ experience using media and communications for social change. She is passionate about Sustainable Development Goals (SDGs) 4 and 5: advocating for quality education and gender equality. She is currently implementing the African Australian Inclusion Program for Jesuit Social Services and volunteers with Reavi-Baho, supporting survivors of sexual and gender-based violence in Burundi. Mimi is part of the Multicultural Advisory Committee of the City of Port Phillip and in her spare time, you can find her taking portraits or landscapes with her new camera or organising community activities on youth leadership and social justice. 

Asha Kayla

Asha Kayla is a sustainable business expert and founder of The Impact Faculty. For almost 15 years, she has worked with a diverse range of companies to help make their business strategies responsible and sustainable in order to drive positive change and achieve sustainable growth. She has held senior positions in retail, logistics, ICT and government organisations, and currently heads up Circular Economy programs for Woolworths Group. Asha is a fellow of the Centre for Sustainability Leadership (CSL) and a passionate advocate for the Sustainable Development Goals, girls’ education and the empowerment of women. Originally from the UK, Asha now lives in Sydney and is partial to dark chocolate.

Monique Longhurst

Monique is an experienced consultant, facilitator, coach and trainer whose key focus is developing authentic leaders and empowering people through change. She is a co-founder of Aspire Personal Development and Consulting and a fellow of the Global Leadership Foundation, and has nearly 20 years of experience in corporate consulting and strategic and operational HR. She works with a diverse range of clients to create sustainable change and specialises in leadership and organisational development and change, team dynamics and executive coaching. As a lover of sun, salt and sand, Monique can often be found with her family on or in the Melbourne bay!

Claire Maloney

Claire is a Co-Founder of The Bravery, a communications and social impact agency dedicated to positive social and environmental change. As the former Communications Manager of Marie Stopes International Australia, Claire’s background is in international aid — a sector she is still strongly connected to today as an independent advisor to the Australian Council For International Development. Claire brings to the board more than ten years’ experience in corporate and consumer communications and is a media expert within topical and issues-rich environments, with specialist crisis media management skills.

Katy Southall

Katy is an international development specialist with a 26-year career, both as a consultant and in leadership roles with Australian Red Cross, Oxfam and Save the Children. Katy’s expertise span business development, innovation, advocacy, child protection and gender. Beyond this, she is an impact adviser and strategist for multiple companies and is passionate about harnessing technology for good. Katy loves bringing together interesting people over great food and wine and is an amateur entomologist and ex-scuba diving instructor with a passion for the natural world.

Alexandra Wall

(Board Secretary)

Alex is a marketing professional by day and a yoga and pilates teacher by night. Living in Geelong, Alex's favourite thing to do is explore the beaches and walks at the city's fingertips with her puppy Murray and her partner. A long-time One Girl volunteer, Alex is passionate about gender equality and the rights of women and girls.



During a life-changing trip to Sierra Leone, Chantelle was struck by the challenges that women and girls face everywhere and committed herself to do something about it, co-founding One Girl in 2009. Chantelle inspired our community to start making a difference – sparking the grassroots movement that allowed us to grow, and crafting the passionate, real, and fiery voice that One Girl has become known for.


After travelling through Africa and meeting just some of the 130 million girls around the world out of school, Dave knew he wanted to do something about it. So he co-founded One Girl in 2009 and helped set up the structures that have allowed us to grow rapidly as an organisation. Dave was also the creative brain behind much of our videos and photography, bringing to life the authentic and compelling storytelling that has become our signature.