Paul Moinester

Paul Moinester is the founder and executive director of Topo Finance, a nonprofit helping organizations unlock one of their most powerful, overlooked climate levers: financial management. He is also the Director of the Strategic Treasurers Alliance, a global network of corporate treasurers working to build and standardize the practice of climate-resilient financial management.

This work was catalyzed by Paul’s pioneering discovery: For many world-leading companies—such as Apple, Google, and Microsoft—their banking and investing generate more emissions than everything else they do combined.

What started as a groundbreaking finding that Bill McKibben credited as uncovering “the largest remaining source of huge and hidden carbon emissions in our economy” has quickly become a new field in finance and sustainability. In 2025 alone, Paul worked with organizations collectively valued at over $1.2 trillion to implement climate-resilient financial management.

In recognition of their revolutionary work, Topo Finance was awarded the Keeling Curve Prize and named one of the most impactful climate organizations on the planet.