Magnite, also known as Rubicon Project and Telaria, is a publicly owned company headquartered in the United States. Founded in 2007 and employing approximately 720 individuals, the company reported $714.0M in revenue as of 2025. Functioning as an ad tech company specializing in RTB and programmatic solutions, Magnite offers a sell-side advertising platform designed to enable monetization of publisher content across CTV, online video, display, and audio. In April 2021, Magnite acquired SpotX, expanding its CTV offering.

2025 Revenue

Founded

2007

Headcount

971

Headquarters

United States

Primary Segment

RTB and programmatic

Ownership

Publicly Owned

Deployments

175

News Summary:

On September 11, 2026, Magnite expanded its partnership with ITN, an ad-tech company focused on modernizing local TV activation, to introduce agentic AI capabilities for local linear advertising, automating local linear buying via Magnite Orchestration and transforming a multi-week process into hours. Previously, on September 10, Magnite added over 20 data partners to its self-serve tool ClearLine Activate, enabling advertisers to directly attach external data sources to media campaigns without manual intervention. Earlier that day, the company reported its first agentic test in EMEA, collaborating with French ad-buying agency Amnet for a car brand's streaming TV campaign, which cut connected TV (CTV) setup time by 70% through automated program handling.

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Magnite offers 7 products in the media and telecoms services, media tech and ad tech and services industries. Magnite's product portfolio comprises of search, social, and retail media, RTB and programmatic, marketer and agency technology and tV and streaming ad tech.
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Magnite's revenues were $714.0M in 2025. Caretta Research has split Magnite's revenue into 4 different product categories, the largest of which is supply side platform (SSP), which represents 75% of Magnite's revenue.
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Magnite has commercial and technical partners like Criteo, Omnicom Media Group and Impact.

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