ArcSpan Integrates With Magnite to Help Publishers Monetize First-Party Audiences Across Display, Video and CTV
ArcSpan Integrates With Magnite to Help Publishers Monetize First-Party Audiences Across Display, Video and CTV
NEW YORK and London — September 28, 2026 — ArcSpan, the AI-powered audience monetization platform built for premium publishers, today announced a native integration with Magnite, the world’s largest independent sell-side advertising company. Publishers using ArcSpan AMS can now activate their first-party audiences on Magnite, making them available to buyers across display, online video and CTV without building a separate integration.
As buyers move budgets into curated and audience-led buying, publishers need their first-party data to travel with their inventory. Too often, audiences built in a data platform stop at the ad server. That leaves programmatic demand bidding on inventory without the signals that make it valuable, and it’s worst in video and CTV, where addressability is hardest.
ArcSpan and Magnite solve this together. Publishers build and analyse audiences in ArcSpan AMS, then activate them on Magnite so buyers can find and bid on that first-party value, wherever the inventory runs.
What the integration enables
Audiences built in ArcSpan AMS can now be activated through Magnite, enabling publishers to:
Activate first-party, contextual and modelled audiences on Magnite from a single integration point.
Package audiences as curated deals for programmatic buyers.
Extend first-party audiences to video and CTV inventory, not just display.
Build an audience once and activate it on Magnite alongside Google Ad Manager and other supported SSPs and DSPs.
Measure the delivery, performance and CPM of each audience to see which segments earn the most.
What it means for publishers
Publishers with video and CTV inventory can bring the same first-party data they use on the web to their highest-value formats, supporting stronger CPMs where addressability is hardest.
Sales teams can sell audiences consistently across direct and programmatic, using one audience definition rather than separate segments for each channel.
Revenue teams get transparent reporting on how each audience performs on Magnite demand, so packaging and pricing decisions are based on evidence rather than assumptions.
Availability
The integration is [live and available] to ArcSpan and Magnite customers. Publishers interested in deploying it can contact ArcSpan or Magnite for implementation details.
About ArcSpan
ArcSpan is the AI-powered audience monetization platform built for premium publishers. ArcSpan AMS, the Audience Monetization System, unifies first-party signal aggregation, identity and data enrichment, audience creation and intelligence (including behavioural and contextual), and activation in a single platform. Publishers use ArcSpan AMS to turn their audience assets into addressable revenue across direct, programmatic and curated demand. Learn more at www.arcspan.com.
About Magnite
Magnite (NASDAQ: MGNI) is the world’s largest independent sell-side advertising company. Publishers use Magnite technology to monetize their content across all screens and formats including CTV, online video, display, and audio. The world’s leading agencies and brands trust Magnite to access brand-safe, high-quality ad inventory and execute billions of advertising transactions each month.
