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James Reinhart

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James Reinhart is the co-founder and CEO of ThredUp, the largest online resale marketplace for secondhand apparel, shoes, and accessories. He co-founded the company in 2009 with the vision of making secondhand shopping mainstream, and has grown it into a platform with millions of buyers and sellers, processing tens of millions of items annually. ThredUp went public on the Nasdaq in 2021, marking a significant milestone for the recommerce sector. Under Reinhart's leadership, ThredUp has pioneered the Resale-as-a-Service (RaaS) model, partnering with major retail brands to power their own resale programs. This has positioned ThredUp at the intersection of retail, sustainability, and technology, and made Reinhart a prominent voice on the future of fashion and circular economy business models. Reinhart is a frequent commentator on sustainable fashion, the secondhand economy, and retail disruption. He has spoken at major industry events and contributed to public discourse on how recommerce can reduce fashion's environmental footprint, making him a recognized thought leader in both retail innovation and sustainability.

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Last updated Oct 11, 2026 by ATDb automated enrichment

Role
Co-Founder and CEO
Company
ThredUp
Based
Oakland, California, United States
Connections
1

AI-drafted from public sources1 source cited

Years in industry
15 years

Bio

James Reinhart is the co-founder and CEO of ThredUp, the largest online resale marketplace for secondhand apparel, shoes, and accessories. He co-founded the company in 2009 with the vision of making secondhand shopping mainstream, and has grown it into a platform with millions of buyers and sellers, processing tens of millions of items annually. ThredUp went public on the Nasdaq in 2021, marking a significant milestone for the recommerce sector. Under Reinhart's leadership, ThredUp has pioneered the Resale-as-a-Service (RaaS) model, partnering with major retail brands to power their own resale programs. This has positioned ThredUp at the intersection of retail, sustainability, and technology, and made Reinhart a prominent voice on the future of fashion and circular economy business models. Reinhart is a frequent commentator on sustainable fashion, the secondhand economy, and retail disruption. He has spoken at major industry events and contributed to public discourse on how recommerce can reduce fashion's environmental footprint, making him a recognized thought leader in both retail innovation and sustainability.

Expertise & education

Expertise

RecommerceResale-as-a-Service (RaaS)Sustainable FashionMarketplace PlatformsE-commerceRetail InnovationCircular EconomyConsumer Brand Partnerships

Education

  • MBA, Harvard Business School
  • BA, Middlebury College

Speaking topics

The Future of Secondhand and RecommerceSustainable Fashion and Circular EconomyRetail Disruption and the Resale EconomyBuilding Marketplace Businesses

Recognition

Notable achievements

  • Co-founded ThredUp in 2009 and scaled it into the largest online resale platform for apparel in the United States
  • Led ThredUp's IPO on the Nasdaq in March 2021
  • Pioneered the Resale-as-a-Service (RaaS) model, enabling major retailers to launch branded resale programs through ThredUp's infrastructure
  • Grew ThredUp to process tens of millions of secondhand items annually with millions of active buyers
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