Topsort builds retail-media infrastructure that lets marketplaces and retailers run auction-based ad formats such as sponsored listings, banners, and off-site media without heavy engineering work. In 2025 the company introduced three offerings—Toppie, a programmatic retail-media network for cross-retailer inventory access; Instore Journey, a privacy-first tool linking in-store shopper signals to digital ads; and Toptimize, an AI-driven optimization engine for mature programs. The platform is already used by international partners including Poshmark, DoorDash, JustEatTakeaway, Cencosud, and LG. Topsort’s team spans 13 countries, and it serves customers in more than 40 countries worldwide. Led by CEO Regina Ye, the company plans to use new capital to expand operations and accelerate product development. No revenue or user figures were disclosed in the article. Topsort positions itself as an enabling layer for retailers seeking additional high-margin ad revenue streams.

Total raised

$28M

Funding rounds

4

Latest round

Series A

Latest activity

Mar 2024