James Reinhart
James Reinhart is best known as the co-founder and CEO of ThredUp, the largest online resale and consignment marketplace in the world. He has been a leading voice in the secondhand and recommerce movement, helping to reshape how consumers and brands think about clothing ownership, sustainability, and the circular economy. Under his leadership, ThredUp went public on the Nasdaq in 2021 and has processed hundreds of millions of secondhand items, positioning the company as a major force in sustainable retail.
Last updated Jun 24, 2026 by ATDb automated enrichment · Connections updated Jun 29, 2026
- Years in industry
- 15 years
Bio
James Reinhart is best known as the co-founder and CEO of ThredUp, the largest online resale and consignment marketplace in the world. He has been a leading voice in the secondhand and recommerce movement, helping to reshape how consumers and brands think about clothing ownership, sustainability, and the circular economy. Under his leadership, ThredUp went public on the Nasdaq in 2021 and has processed hundreds of millions of secondhand items, positioning the company as a major force in sustainable retail.
Career
Co-Founder and CEO
ThredUp · 2009-present
Consultant
Bain & Company · 2004-2007
Board memberships
Expertise & education
Expertise
Education
- BA, Harvard University
- MBA, Harvard Business School
Speaking topics
Recognition
Notable achievements
- Co-founded ThredUp in 2009 and scaled it to the world's largest online resale platform
- Led ThredUp's IPO on the Nasdaq in March 2021
- Launched ThredUp's Resale-as-a-Service (RaaS) platform, enabling major brands to offer resale programs
- Grew ThredUp to process over 100 million secondhand items annually
Awards
Publications
- ThredUp Annual Resale Report (co-authored, published annually)