Will Sarni

Will Sarni is the Practice Lead, Water and Nature at Earth Finance. Prior to Water Foundry’s acquisition by Earth Finance, Will served as the firm’s founder and CEO. He was a managing director at Deloitte Consulting where he established and led the global water strategy practice. He was the founder and CEO of DOMANI, a sustainability strategy firm, prior to Deloitte.

Will is a visionary leader in corporate water and nature strategy, technology innovation, and technology investing. He is an investor in water and ag tech companies and has been a sustainability and water strategy advisor to multinationals, water technology companies, investors, and non-governmental organizations for his entire career.

Will is in high demand for his innovative view on challenging the status quo and creating significant revenue-generating and cost-saving business value by deploying water and nature stewardship strategies.

He is the author numerous publications on water strategy and innovation including the following books.

• “Corporate Water Strategies” (Earthscan 2011, and in Chinese by Shanghai Jiao Tong University Press 2013)

• “Water Tech – A Guide to Investment, Innovation and Business Opportunities in the Water Sector” (Sarni, W. and Pechet, T., Routledge 2013)

• “Beyond the Energy – Water – Food Nexus: New Strategies for 21st Century Growth” (Dō Sustainability 2015)

• “Water Stewardship and Business Value: Creating Abundance from Scarcity” (Sarni, W., and Grant, D., Routledge 2018, Second edition, 2025)

• “Creating 21st Century Abundance through Public Policy Innovation: Moving Beyond Business as Usual” (Sarni, W. and Koch, G., Greenleaf Publishing 2018)

• “Digital Water: New Technologies for a More Resilient, Secure and Equitable Water Future” (Routledge, 2021).

• “Water, I Wonder” (Sarni, W and Dunnigan, T., Outskirts Press, September 2022).

• “Oceans, I Wonder” (Sarni, W and Dunnigan, T., Forthcoming 2026)

Will is a host of the podcast Distilled by Qatium and co-host of The Stream with Will and Tom. He is on the board of Heart Water and Hydraloop, an advisor to FIDO Tech, Ketos, True Elements, and WaterMarq. He was the Chairman of the Scientific Advisory Board for the WAITRO Global Water Innovation Summit 2020 and was on the Scientific Program Committee for Stockholm World Water Week from 2013 through 2019. His advisory work includes working with the 2020 X-PRIZE (Infinity Water Prize), as a Bold Visioneer for the 2016 X-PRIZE Safe Drinking Water Team, and a Technical Advisor for the Climate Bonds Initiative: Nature- Based Solutions for Climate and Water Resilience. He is also on the Editorial Board of the Journal of Water Security. He was ranked as Worth Magazine Worthy 100 for 2022, A Key Player Pressuring Businesses to Care About Water, and one of the Top 15 Interviews In Smart Water Magazine 2019.