Brooke is the General Manager, Sustainability, for Coles Group.

Brooke has over 25 years’ experience working across sustainability, circular economy, recycling, product stewardship and stakeholder collaboration.

In her current role, Brooke leads the Coles teams to deliver on circular economy activities, climate and energy initiatives, sustainability reporting and engagement across all Coles businesses.

During her career Brooke has been responsible for the strategic design and delivery of a range of strategic national and cross regional initiatives such as the Product Stewardship Cluster, the 2025 National Packaging Targets, the Australasian Recycling Label and the ANZPAC Plastics Pact.

Brooke has worked across a diverse range of recycling, product stewardship and sustainability organisations such as, APCO, Visy Industrial Packaging, Greenpeace Australia Pacific, and ANZRP.

Siobhan Leach is the Group Sustainability Officer for global health care provider, Ramsay Health Care. Ramsay Health Care provides quality health care through a global network of clinical practice, teaching and research. Employing over 90,000 staff, Ramsay Health Care’s global network extends across eight countries.

Working with the global sustainability leads, Siobhan’s role is to deliver the Ramsay Cares sustainability strategy across three sustainability pillars of: caring for our people, caring for our planet and caring for our community. Siobhan has worked in sustainability and environmental management for over 20 years and has a wide range of experience in sustainability strategy, reporting and governance.

Siobhan is excited to be working in the health care sector at this challenging time helping to deliver stronger communities, healthier people and a thriving planet.

Richard is the Chief Sustainability Officer at Australis Post; a government business enterprise that plays a critical role connecting communities across Australia. Leading the team responsible for developing and embedding the sustainability strategy, Richard drives the integration of sustainability priorities within the enterprise strategy to achieve lasting change.

With over 25 years’ experience dedicated to sustainability, climate change and environment, Richard’s background spans various roles in listed organisations, professional services as well as industrial and consumer product sectors. Most recently, Richard joined Australia Post after nine years as Head of Sustainability at Cleanaway, Australia’s leading integrated waste management provider.

Richard is a passionate believer that integrating sustainability values and principles into business strategy is vital to long-term success.

Ricky Bridge is a highly experienced leader in environmental management and corporate sustainability, with a career spanning over 22 years across the private and public sectors. He holds a Bachelor’s degree in Environmental Science and a Master’s degree in Science and Technology with a specialisation in Environmental Management, Climate Change and GHG Emission Accounting, Circular Economy, Sustainable Finance, Corporate Sustainability Reporting, and Governance.

Since joining Downer in 2009 as an Environment and Sustainability Advisor, Ricky has significantly contributed to the company’s sustainability initiatives. In 2015, he was appointed as Group General Manager of Environment, Sustainability and Reporting, and in July 2024, he was promoted to the role of Executive General Manager, Environment, Sustainability and Reporting. Risk is responsible for leading Downer’s Sustainability and Environment function, delivering Downer’s ESG Strategy, Sustainable Finance, Environmental Management along with Downer Sustainability and Climate Change Reporting and Disclosures.

Amanda is a purpose driven leader focused on creating and leading shared value. Amanda’s career began in assurance, followed by roles in learning and development, corporate responsibility, social impact, gender equality and consulting. As an experienced sustainability leader Amanda strongly advocates for the role business can play in contributing to positive and inclusive impact. As Head of Sustainability, Community, Diversity & Inclusion at Medibank Amanda leads a team who co-designs opportunities for Medibank to create sustainable, healthy futures for their customers, people, community and planet.

Amanda is a Graduate of the Australian Institute of Company Directors and member of Chartered Accountants Australia New Zealand. She has studied Executive Leadership at INSEAD and has a Master of Education and Bachelor of Accounting.

Kylie Porter is a sustainability and ESG-risk professional with over 20 years’ experience in sustainability strategy and leadership roles globally across the financial services, professional services and NGO sectors. As SunRice Group’s Head of Sustainability, Kylie leads on the development and execution of the Group’s sustainability strategy globally, including across key areas of climate change, human rights, biodiversity and community investment. Previously she was the Executive Director of the UN Global Compact Network Australia — the Australian Local Network of the United Nations Global Compact — where she transformed the organisation into Australia’s largest corporate sustainability initiative. Kylie was recognised as an ESG Power50 by FS Sustainability in 2024.

Kylie is member of the Australian Government’s Expert Advisory Group on Modern Slavery, the Australian Agricultural Sustainability Framework (AASF) Expert Advisory Group, the Co-Chair of Footy for Climate and the Deputy Chair of XSPI’s Advisory Committee. Kylie holds a Masters in Social Science (International Development), is a graduate of the AICD Company Directors Course and a fellow of the Cranlana Institute’s Vincent Fairfax Fellowship on Ethical Leadership.

Fiona Walmsley is the General Manager of Sustainability at Virgin Airlines. She joined Virgin in June 2023, after over 7 years as the General Manager of Climate & Environment at Woolworths Group, during which she played a key role in transforming the business into a best-practice leader in sustainability. She has been working in sustainability-related roles for more than 20 years, including many years in professional services, and was as a Director in Deloitte’s Sydney Sustainability Services practice. Holding both undergraduate and post-graduate qualifications in engineering, she enjoys working on complex, interconnected problems.

Ronni Kahn AO is a social entrepreneur and founder of Australia’s leading food rescue charity, OzHarvest. Ronni is a passionate advocate and activist renowned for disrupting the food waste landscape in Australia. She leads with purpose and conviction in the spaces of food security and sustainability while also appearing regularly in national media. Her mission to fight food waste and feed hungry people is supported by some of the world’s finest chefs. Ronni is an Officer of the Order of Australia (AO) and was named Australian Local Hero of the Year. Her journey is the subject of feature film, Food Fighter directed by Dan Goldberg. In 2020 she co-authored her biography; A Repurposed Life, which was nominated for an ABIA award for Biography Book of the Year.

Michelle Degenhardt is the Global Sustainability Officer at Flight Centre Travel Group (FCTG), a position she has held since 2021. With 20 years of experience at FCTG, Michelle has developed a deep understanding of various facets of the business, having worked in Event Management, People and Culture, Employee Engagement, and Corporate Social Responsibility (CSR). In addition to her extensive professional experience, Michelle studied Business Sustainability Management with the University of Cambridge, further deepening her expertise in the field. She is passionate about advancing sustainability within FCTG and the broader travel industry, committed to driving positive, long-term change for both the company and the sector at large.

Nathan is currently Group Manager, Climate and Sustainability at Downer, and has ~9 years experience across industry and consulting roles within ESG. In this role, Nathan leads Downer’s sustainability reporting priorities and contributes to Downer’s sustainability strategy. Key priorities include navigating the complexities of climate-related reporting, as well as formulating and implementing Downer’s decarbonisation strategy.

Before joining Downer, Nathan spent ~5 years in consulting, specialising in sustainability, climate change, and financial assurance and advisory. These roles honed Nathan’s expertise in carbon accounting, sustainability reporting, and regulatory compliance across a wide range of industries.

Meegan joined Intrepid in February 2023 and leads all aspects of global people and culture, which includes 1,790 team members in 26 offices and thousands of tour leaders around the world. A strategically and commercially astute HR professional, Meegan brings over 20 years’ experience driving successful business transformations and employee engagement in high stakes work environments and is known for her collaborative, calm and compassionate nature. Outside of work, Meegan keeps busy with her young family and enjoys Melbourne’s performing arts scene.  Meegan’s favourite Intrepid trip involves beaches, sunshine and plenty of adventure for the whole family – the Sri Lanka Family Holiday.

Paolo is an Executive that has delivered industry leading programs and solutions at both a project and organisational level across real estate and energy sectors in multiple geographies over a 20-year career.

In November 2022, Paolo was appointed Frasers Property Limited inaugural Group Head of Sustainability. In this role, Paolo is responsible for sustainability strategy for the Group’s multinational and diversified operations.

Prior to this role, Paolo was the founding General Manager and Chair of Frasers Property’s Real Utilities, an energy retailer and utilities business, delivering carbon neutral energy to customers.

Prior to Frasers Property, Paolo held various sustainability and renewable energy roles, working on some of Australia’s leading green building projects and new business solutions.

Paolo is Vice Chair of the International Living Future Institute and Chair of the Property Council of Australia’s National Sustainability Roundtable.

Christina Wilson is currently the Chief People & Sustainability Officer for Team Global Express, where she leads the People and the ESG Teams. Prior to this she was at Russell Reynolds, a leading executive search and leadership advisory firm, where she led the global Transport & logistics practice, including supporting Industrial businesses in leadership solutions in the Asia Pacific region.

Christina has more than 20 years of global leadership experience in transformation, strategy, customer experience, sales, marketing and operations, including her role as Global Head of Marketing, Customer Centricity & Insights at Toll Holdings and senior executive roles with Origin Energy and General Electric Australia.

Most recently, she joined the UNHCR Bali GABF forum representing the supply chain businesses in Australia, committed to eradicating modern slavery in South Asia and Asean.

Christina holds a Bachelor of Engineering (Chemical) from the University of Melbourne and is a graduate of the Australian Institute of Company Directors, currently serving as a non-executive director and board member of Opportunity International Australia.

As Sustainability Lead at Colgate-Palmolive South Pacific, Hannah is at the forefront of progressing the company’s sustainability and social impact strategy across the South Pacific Region.

In this role, Hannah’s recent initiatives include achieving zero-waste manufacturing in Australia, providing local support for product teams to achieve the company’s packaging goals such as reducing reliance on virgin plastic and increasing the use of recycled content, as well as progressing growth projects that deliver more oral health education in communities that need it most.

Leveraging her commercial background, Hannah combines product and people focused strategies to support Colgate’s ongoing commitment to a more sustainable and healthier planet for all.

Kate Carroll is an experienced sustainability leader with expertise spanning environmental systems, resource management, business strategy and corporate sustainability. With an environmental science background and MBA, Kate combines scientific insight with strategic acumen to create impact and value. Having worked across mining and manufacturing, banking and finance and most recently within the fashion and retail industry, Kate is passionate about aligning business success with positive social and environmental impact. Kate is focused on fostering strong, collaborative relationships to leverage sustainability as a catalyst for innovation and systems change.

Sally is the Group Senior Sustainability Manager for the global employment marketplace provider SEEK.

SEEK provides operates market-leading online employment marketplaces in Australia, New Zealand and across South East Asia. It is focused on providing people with all the job opportunities relevant to them and enabling organisations to reach all relevant prospective employees. SEEK develops and applies innovative data and technology tools to facilitate high quality matching and improve reliability of marketplace information.

SEEK’s core business has a strong positive impact on people, businesses and communities. To maximise that impact, SEEK focuses on its daily activities to facilitate the quality matching of people and organisations. Beyond its core business, SEEK focuses on a range of sustainability activities including fair hiring and modern slavery, social impact programs such as SEEK Volunteer, data and insights to support policy development, our workplace giving program and community partnerships and SEEK’s First Nations Reconciliation Strategy, as well as delivering on its climate commitments.

Sally is responsible for driving SEEK’s social and environmental priorities across its APAC operations. She is an experienced sustainability and change professional and passionate about creating value and making a difference.  Sally has significant experience across various industries with a background in management consulting, global resources, healthcare and technology and has managed major organisational transformations projects as both a functional lead and change manager in the private and public sector.

Emma is a Partner with EY Climate Change and Sustainability team and the Co-leader of the EY Net Zero Centre. Emma is a skilled professional with over 20 years’ experience in climate change, sustainable finance and sustainability practice. Prior to joining EY, Emma was Chief Executive Officer of the Investor Group on Climate Change (IGCC) (2015-2021) and Environment Commissioner for the Greater Sydney Commission (2020-2021).  Previously, Emma worked at Westpac for over 15 years across a range of sustainability, environment, sustainable finance, climate change, carbon trading and ESG risk management roles.  Emma is a regular media contributor on climate change matters and a respected voice on climate transition implications for business.

Roberto is a psychologist with extensive experience in advancing health and safety performance through organisational development, executive leadership and culture transformation. His consultation experience spans Asia, North America, South America and the Middle East. He has a Bachelor of Science in Applied Psychology and Human Bioscience, as well as a Masters in Organisational Psychology. Roberto specialises in the development of EHS strategies, transformations, culture change and integration of the EHS initiatives to overall organisational objectives, including leadership development and psychosocial risk management.

Gautham Ganesh is a Senior Corporate Account Manager at Strive by STX, the climate action division of STX Group, a global leader in environmental commodities trading.

In this role, he supports Australian corporates with bespoke decarbonization solutions leveraging environmental commodities. With a consultative approach, he supports companies to achieve their sustainability goals while navigating the complexities of evolving environmental markets and regulatory compliance, all while optimizing financial performance.

With nearly a decade of experience across Europe and Asia-Pacific, Gautham is an expert in sustainability strategy, market development, and corporate engagement. Before joining STX, Gautham held various commercial roles in industrial automation and climate advisory, fostering long-term partnerships with strategic accounts and supporting corporate transitions to low-carbon solutions.

Gautham holds a Global MBA in Sustainability and Strategy from ESSEC Business School France/Singapore and a Bachelor of Science in Mechanical Engineering from Karlsruhe Institute of Technology, Germany.