Topsort Retail Media & Commerce AI Platform

Topsort is a retail media and commerce AI company based in Palo Alto, California, operating as Topsort Technologies, Inc. and led by co-founder and CEO Regina Ye. It gives retailers, marketplaces and delivery apps the infrastructure to run their own advertising business, so they can earn ad revenue from brands and sellers without building an ad stack in-house.

The platform covers sponsored listings, sponsored brands, display and banner ads, native and video placements, offsite advertising and in-store media. T-Engine handles auctions, pacing, quality scoring and attribution, T-Zero is a lightweight ad server API, T-Brain applies AI to ranking and relevance, Toptimize optimises mature programmes, Toppie is a commerce media DSP and Tomi is an AI ad operations agent. Clients across more than 40 countries include DoorDash, Poshmark, Cencosud, Falabella, Coles and Just Eat Takeaway.

• Ad formats: Sponsored listings, sponsored brands, display, native, video, offsite and in-store media.
• T-Engine: Runs auctions, pacing, quality scoring and attribution.
• T-Zero API: Lightweight ad server API for fast integration.
• T-Brain and Toptimize: AI and machine learning for ranking, relevance and campaign optimisation.
• Toppie DSP: Programmatic commerce media buying across retail networks.
• Tomi and Data Genie: AI ad operations agent and analytics for advertisers and retailers.

A Vietnamese grocery e-commerce site can sell sponsored product slots to FMCG suppliers. A pharmacy chain app can offer brand banners and in-store media in one auction system. A food delivery platform can add sponsored restaurant listings with attribution reports for merchants.

Retailers and marketplaces can launch a retail media network and new ad formats without large engineering teams. Auction, attribution and AI ranking are handled by the platform, so ad relevance and shopper experience are balanced. Programmatic and offsite channels extend reach beyond the retailer's own site. The company holds SOC 1, SOC 2 and ISO 27001 certifications.

Retail media is one of the fastest growing advertising channels as retailers monetise first-party shopper data and brands shift budgets closer to the point of purchase. In Southeast Asia, grocery chains, pharmacy chains and delivery apps are starting their own ad networks, creating demand for ready infrastructure rather than in-house builds.

Topsort Technologies, Inc. is based in Palo Alto, California, with teams in 13 countries. It received investment from W23 Global in November 2025. Certifications include SOC 1, SOC 2 and ISO 27001 audited by A-LIGN. Recognised as one of Forbes America's Best Startup Employers 2025. Founding year is not stated on the fetched pages.