James Reinhart

James Reinhart is co-founder and chief executive officer of ThredUp, a listed online apparel resale operator. ThredUp's public governance biography states that he co-founded the business in 2009 and has served as CEO and a director since then. Before starting the company he worked in education initiatives including Pacific Collegiate School and Beacon Education Network, according to the company's management disclosures.

ThredUp's managed resale model involves physical intake, item preparation and fulfillment rather than only connecting buyers with independent sellers. Its operating structure makes warehouse productivity, supply quality, buyer retention and the economics of handling secondhand goods central leadership challenges. The company also offers resale infrastructure to brands and retailers through its Resale-as-a-Service business.

In its August 2026 second-quarter financial announcement, ThredUp reported $90.8 million in revenue, up 17 percent year over year, and 1.77 million active buyers. The announcement also addressed continued demand uncertainty among price-sensitive consumers. Reinhart's executive record is especially relevant to comparing marketplace transaction growth with operational contribution margin in managed resale.