ERM at AWS Global Water Stewardship Forum 2025

Andrea is a Partner at ERM and Italian office Country Manager. He is a hydrogeologist (PhD) with 20 years of experience in environmental consulting and water sustainability.​

He works at all levels, from corporate commitments to the implementation of individual facilities. He has comprehensive experience in client management, remediation and impact assessment, national and international project management, ground and surface water modelling, planning and supervision of groundwater, lake and river monitoring and contaminated site management. ​Andrea is an associated editor of the Italian Journal of Groundwater.

Sarah Mackay is an environmental strategist with deep expertise in water sustainability, ESG reporting, and regulatory compliance under CSRD and TNFD.

She has guided major European industrial clients through water risk assessments, policy interpretation, and implementation of best-practice stewardship programs—translating complex hydrological data into actionable corporate strategies and fostering resilient, long-term water management. Sarah collaborates closely with regulators, academics, and industry peers to advance innovative treatment and reuse solutions, ensuring both business continuity and ecosystem health.

Outside the boardroom, she’s a Pennine-based cyclist, swimmer, and poet who brings an eco-conscious creativity to everything from her garden to the food on the table.

Helen is a hydrogeologist with twenty years’ experience in the water sector, including experience in various aspects of catchment-scale integrated water resources planning, groundwater resources management, social and economic development challenges as they relate to resources management, and in the institutional and governance structures for water resources management. Her focus is the management of water risk to business, and on helping businesses develop water strategies, to not only meet compliance needs and achieve operational efficiencies, but also to understand and address shared risk, and ultimately for positive impact. She has experience in the pharmaceuticals, manufacturing, mining, technology, consumer goods and agricultural sectors and is experienced with the various water reporting and stewardship frameworks. 

Andrea is a Managing Consultant and at ERM’s Milan office. He has a background in water/wastewater management and treatment.

Andrea’s work is focused on water resource management and corporate water stewardship, with experience in water risk. He has been the lead of several global water risk assessment projects for clients that involved comprehensive site level and watershed research to identify current and projected water challenges.

Greg is a globally recognized leader in corporate water stewardship, business risk management, sustainability strategy and business case development, and climate change adaptation and resiliency. He leverages over 20 years of experience leading water stewardship for The Coca-Cola Company to help clients develop and mature their water programs including plant- and basin- level target setting, replenish and neutrality/positivity programs, and policy advocacy.

In addition, he has also managed numerous NGO and government partnerships and led investor and stakeholder engagement on water-related business risk mitigation.

Greg also has extensive experience managing sustainability issues related to the bottled water sector inclusive of water supply reliability studies, regulatory permitting, community and media engagement on anti-bottled water activism, and packaging waste issues (recycling, bottle bills, anti-litter).

Michele is a Principal Consultant in the ERM’s Italian office with over 20 years of experience. He is specialized in contaminated sites management, water sustainability, and complex hydrogeological modeling. He is focused on delivering innovative and holistic solutions to devise effective and sustainable remediation strategies, with a strong track record of successfully managing projects across Europe. He is an expert in water stewardship and AWS credentialed, and he is supporting primary clients in their water sustainability journey.

Matt Haddon spearheads ERM’s global 'Nature & Water Voyager' - shaping how we help clients tackle the next big sustainability challenge. His work blends business, digital and technical consulting at senior levels for major clients bridging between the real world on the ground and executive leadership.

He is passionate about helping leaders make their organizations more successful – and the world safer, cleaner and more equitable in the transition to a lower carbon economy.

Matt has led major programs to help executives better understand the opportunities and risks their businesses face and to co-design and execute performance improvement programs worldwide, on a wide range of sustainability challenges from climate change to non-technical risk to safety.