Case Study: Poshmark achieves 43% higher sales with Topsort's Sponsored Listings

Poshmark boosts seller sales 43% with Topsort

Poshmark, a prominent fashion resale marketplace, sought to build a new advertising business to further monetize its platform and empower its sellers. Their challenge was to create a flexible, API-first ads infrastructure capable of managing a diverse inventory while maximizing revenue without compromising user experience. They partnered with Topsort to develop this solution.

Topsort delivered a custom API-first advertising infrastructure for Poshmark's Promoted Closet product, which included sponsored listings, real-time reporting, and Bidless™ technology. Key to their success was a custom AI model and ranking function tailored to Poshmark's unique catalog. This solution helped over 1,000 sellers achieve a 43% increase in sales, a 3.8x return on ad spend, and an 80% higher ad engagement rate.

Poshmark