Haley Lieberman is a creative operator and circular economy leader whose career connects commerce, technology and fashion through firsthand experience as both an entrepreneur and as a commercial partner to the world’s largest businesses. She has founded two platforms that approached secondhand commerce in different ways: one enabling peer-to-peer trade, the other bringing together resale inventory through trusted curators. That experience informs how she approaches growth, from what makes people shop secondhand to the technology, relationships, and business models that make it work. She brings a founder’s resourcefulness and desire to get under the hood, paired with the strategic perspective and relationship-building skills to work with some of the world’s largest companies.

Haley is Director of Network & Industry, North America at the Ellen MacArthur Foundation, where she stewards corporate partnerships across fashion and textiles, critical minerals, and plastics and packaging. Working with companies including Amazon, Google, and Microsoft, she helps translate circular economy principles into business strategies and opportunities for collaboration. Her work has also taken her into circularity for data centers and the potential of AI to accelerate circular solutions—extending her focus from the clothes we wear to the infrastructure powering our digital lives. Previously, Haley was the founding Director of Marketing and Community at ClimateHaven, where she lead business development, marketing and communications, community engagement and programming with corporates and non-profits alike.