PubMatic

PubMatic is a supply-side platform where publishers and media buyers trade CTV, mobile app and display inventory. Sold on quoted terms, no public rate card.

PubMatic is a supply-side platform for publishers, app developers and streaming services that sell advertising inventory programmatically, and for the agencies and advertisers buying it. It is made by PubMatic, Inc., a company founded in 2006 and listed on Nasdaq as PUBM. The platform brings the auction, the curation of inventory and the supply path into one account rather than leaving them spread across separate vendors. Publishers sell open auction and private marketplace inventory through the global SSP, create programmatic guaranteed and PMP deals, and manage them with PubMatic Assistant, which uses generative AI to populate deal settings and confirm details. Connect turns publisher first-party data into curated packages that buyers activate by deal ID, and Audience Extension carries those audiences to off-site demand. Activate gives media buyers a direct path to the same supply, with a Campaign Monitoring Dashboard for pacing and CPM insight. A Deal Troubleshooting agent flags underperforming deals, and Ad Quality controls govern what creative is allowed to serve. Supply spans connected TV, online video, mobile app through the OpenWrap SDK, display and commerce media. PubMatic suits premium publishers and streaming owners with enough audience to negotiate direct demand, mobile app developers monetizing in-app placements, and retailers standing up a commerce media network. On the buy side it fits agencies and advertisers that want a shorter supply path to connected TV and video inventory, and data partners that want their segments in front of buyers. Both sides are sold through a sales conversation on negotiated terms rather than a self-service signup, and PubMatic publishes no rate card. Day to day the platform is used to package inventory for one buyer behind a single deal ID, to open access to a new demand partner, to keep connected TV pods filled through a live event, and to work out why a deal underdelivered before the advertiser asks. It sits beside a publisher's ad server and header bidding setup, where OpenWrap can run the wrapper, and beside the DSPs that bid into it. Data partners connect through Connect, and commerce media operators run their retail inventory from the same account.