Topsort

Topsort is a retail media infrastructure company based in San Francisco, founded in 2021. It specializes in AI-powered, privacy-focused auction-based advertising solutions for e-commerce retailers, marketplaces, and consumer packaged goods brands across over 40 countries. Topsort aims to make advanced auction and AI monetization technologies accessible while prioritizing user privacy and carbon-neutral operations. The company offers a flexible, API-first platform that includes a self-serve ad server for managing various ad types, a demand-side platform for running campaigns across multiple retailers, and ad intelligence tools for optimizing ad performance. Topsort emphasizes ease of use, high return on ad spend (ROAS), and privacy-by-design in its offerings. Its clients include notable names like Poshmark, Glovo, and DoorDash, benefiting from increased ad engagement and revenue growth through its innovative solutions.