About Ilona Marchetta Consulting
Expert ESG transformation and sustainability reporting
Best practice ESG transformation and reporting — including GRI, ISSB, and GARP — led by certified sustainability practitioner Ilona Marchetta. We combine deep technical knowledge with over 20 years’ experience across finance, capital markets, and government.
What We Do
At Ilona Marchetta Consulting, we help organisations and their people understand complex concepts, adopt sustainable behaviours, and navigate transformational change with confidence and clarity.
Ilona Marchetta is a certified:
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Global Reporting Initiative (GRI) practitioner
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IFRS Sustainability (FSA Credential) holder
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GARP Sustainability & Climate Risk professional
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Associate Project Manager (APM)
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Organisational Change Manager
She has led and supported enterprise change programs for organisations ranging from 400 to 60,000 people, including distributed and offshore teams. Ilona also brings specialist experience in programs that affect customer-facing teams and vulnerable communities, with past roles in the Banking Code of Practice reform, the Royal Commission into Institutional Responses to Child Sexual Abuse, and Family and Community Services (FACS).