Poshmark

Poshmark operates a fashion resale marketplace in the United States and Canada, connecting buyers and sellers of new and second-hand apparel and other goods. Founded in 2011, the company has built its business around real-time social experiences layered on top of commerce, distinguishing it from conventional classified listings. Its community exceeds 150 million members, and the platform has facilitated more than $8 billion in seller earnings and over 350 million items sold across more than 10,000 brands.

The technical work spans mobile technology, online marketplace platforms and social commerce. Engineers operate a system that matches listings to buyers across 90 or more product categories, from everyday clothing and kids' items to luxury and vintage goods, alongside home, electronics, pets and beauty. The catalogue's breadth and the emphasis on real-time interaction make recommendation, search and discovery problems central to the product.

Categories on the marketplace include women's, men's and kids' fashion, home, electronics, pets, beauty, luxury goods and vintage goods. Poshmark states a mission of putting people at the heart of commerce and of making shopping and selling social and straightforward, and it frames resale as a means of keeping fashion in circulation for longer.