Programmatic
Magnite
Magnite is an independent sell-side advertising company and platform for media owners, buyers, and agencies. Its technology supports programmatic monetization, ad serving, demand management, curation, identity, and deal execution across connected television, online video, display, mobile, audio, and other formats, combining businesses historically associated with Rubicon Project, Telaria, SpotX, and SpringServe. It fits scaled publishers and streaming companies that need enterprise supply infrastructure, as well as buyers seeking curated access to premium omnichannel inventory.
What it does
Magnite is the largest independent sell-side platform (SSP), formed from the merger of Rubicon Project and Telaria, helping publishers and broadcasters monetize ad inventory across connected TV, online video, display, and audio. Publishers connect their inventory to Magnite, which runs unified auctions, applies header-bidding and server-side connections, and exposes that supply to demand-side platforms and agencies. It provides controls for floor pricing, deal curation, private marketplaces, and brand safety, with particular depth in CTV and streaming where it integrates with major media owners. For buyers, Magnite offers curated marketplaces and audience deals. Its role is to maximize publisher yield while giving advertisers transparent, fraud-screened access to premium video and TV supply.
Where it fits
Magnite sits on the sell side of the programmatic supply chain, connecting publisher inventory to DSP demand and maximizing yield, especially for connected TV.
Core features
- Unified first-price auctions across CTV, video, display, and audio
- Header bidding and server-side demand connections
- Private marketplace and programmatic guaranteed deal setup
- Floor pricing, yield controls, and inventory packaging
- CTV and streaming integrations with major media owners
- Brand-safety, fraud screening, and supply-path transparency tools
Best for
- Publishers and broadcasters monetizing video and CTV inventory
- Media owners running private marketplaces and curated deals
- Agencies seeking transparent access to premium streaming supply
Beginner notes
- SSPs serve publishers, not advertisers; if you buy media you reach Magnite supply through a DSP or curated deal, not the SSP directly.
- CTV is Magnite's strongest area, so evaluate it first if your inventory or buying goals center on streaming and video.
- Review supply-path optimization reports to confirm you are reaching inventory through efficient, low-hop connections rather than redundant resellers.