Topsort has launched Universal Ads, a new offsite channel that allows retailers and marketplaces to extend their advertising campaigns into premium CTV and streaming inventory. The platform utilizes view-through attribution to measure performance across inventory from major publishers including NBCUniversal, Paramount, and Warner Bros.
The immediate implication is a lowering of technical barriers for retail advertisers to enter the CTV space, as the removal of catalog synchronization requirements simplifies cross-channel execution. This move signals a shift in the ecosystem where commerce media is no longer confined to owned-and-operated retail sites, but is instead becoming a portable demand source for major streaming publishers like NBCUniversal and Paramount. By utilizing view-through attribution, Topsort is standardizing how retail-driven video ads are valued in lean-back environments. Watch for whether this infrastructure leads to an influx of mid-market retail brands into the premium streaming ad market, potentially diversifying the advertiser base beyond traditional blue-chip brands.
Topsort is part of a broader wave of retail media platforms extending beyond owned-and-operated surfaces into premium video. In May 2025, Amazon Ads announced its Streaming TV ads had reached over 150 million monthly viewers across its portfolio, demonstrating the scale that retail-adjacent demand can achieve in CTV. Meanwhile, Walmart Connect expanded its offsite CTV offering through a partnership with The Trade Desk in early 2025, allowing brands to activate Walmart shopper signals against third-party streaming inventory. These moves establish the competitive landscape Topsort is entering, where commerce media ad spend increasingly treat premium video as a natural extension of their first-party data advantage.
The business model behind retail media's CTV push is attracting significant investor attention and M&A activity. Topsort raised a $26 million Series A in late 2024 to fund its expansion into offsite channels, signaling that venture capital sees commerce media portability as a growth vector. On the publisher side, NBCUniversal launched its Retail Media Network in partnership with Instacart in 2024, creating a two-sided marketplace where retailers supply demand and streaming publishers supply inventory. This convergence means Topsort's Universal Ads competes not only with other retail media enablers but also with publisher-built solutions that bundle their own attribution and measurement layers.
On the measurement front, view-through attribution for CTV remains an active area of development that directly affects how Topsort's product is evaluated by buyers. Innovid published data in 2025 showing that CTV view-through conversion rates averaged 2-3% for retail advertisers, providing benchmarks that platforms like Topsort must meet or exceed to justify spend. The IAB Tech Lab released updated CTV measurement guidelines in March 2025 that standardize how impression-level attribution is reported across non-clickable environments, which affects how Topsort's view-through methodology is validated by third parties. Competing measurement approaches from iSpot.tv and VideoAmp have also gained traction among CTV advertisers seeking cross-platform deduplication, meaning Topsort's attribution claims will face scrutiny against these established verification providers.
For related background, see StreamingMeme's prior coverage of Magnite Showcase launch connects premium CTV inventory to AI buyer agents.
Topsort has launched Universal Ads, a new platform enabling retailers to run 60-second video campaigns across premium CTV and digital inventory. By removing product catalog synchronization requirements and utilizing view-through attribution, the platform simplifies cross-channel execution, allowing commerce media to expand beyond owned retail sites into major streaming environments.
Universal Ads is a new platform that allows retailers to extend their advertising campaigns into premium streaming environments and CTV inventory.
The platform integrates inventory from major publishers, including NBCUniversal, Paramount, and Warner Bros.
Performance measurement for CTV relies on view-through attribution rather than traditional click-through metrics, as it is designed for non-clickable television screens.
No, the platform enables retailers to run 60-second video campaigns across CTV and digital inventory without requiring product catalog synchronization.
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