Magnite
Los Angeles, California, United States · Founded 2020
1001-5000 employees · MGNI
Sourced & current · updated Oct 26, 2026Website
Magnite is an American online advertising technology company based in Los Angeles, California, formed through a merger of Rubicon Project and Telaria in 2020.
Where they sit
Stack tier: Core Platforms (S)
Connected TV PlatformSupply Side Platform (SSP)Programmatic Platform
World's largest independent omnichannel sell-side platform, serving premium publishers and media owners globally across streaming, video, display, and audio formats
Ownership
Subsidiaries