Magnite

Largest independent sell-side advertising platform globally, with dominant position in CTV/streaming monetization

Magnite is the leading independent omnichannel sell-side platform (SSP) formed through the merger of Rubicon Project and Telaria in 2020, subsequently strengthened by the acquisitions of SpotX (2021) and SpringServe (2021). The company provides publishers, broadcasters, and streaming services with the technology infrastructure to manage, sell, and optimize their digital advertising inventory across connected TV (CTV), desktop, mobile, video, audio, and display formats. Magnite serves some of the world's largest media companies and publishers, processing billions of ad transactions daily. Magnite's platform offers a comprehensive suite of tools including a supply-side platform, ad server, header bidding solutions, and audience data capabilities. Its CTV business has become a major growth driver, positioning the company as a dominant force in streaming advertising monetization. The company's independence from buy-side interests is a key differentiator, ensuring alignment with publisher goals and avoiding conflicts of interest common among walled gardens. Headquartered in New York City with offices globally, Magnite is publicly traded on NASDAQ and serves hundreds of premium publishers and broadcasters worldwide. The company competes with Google's Ad Manager, Xandr, and other SSPs, but distinguishes itself through its scale, CTV specialization, and publisher-first approach. Magnite's technology supports both programmatic and direct sales channels, making it a critical infrastructure provider in the open internet advertising ecosystem.