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SpotX

SpotX

Rebranded

Broomfield, Colorado, United States · Founded 2007

501-1000 employees · NASDAQ:MGNI

Sourced & current · updated Oct 12, 20262 of 5 facts verifiedWebsite

SpotX, now operating as part of Magnite, was a video advertising and monetization platform that was acquired by Magnite, Inc. in 2021.

Where they sit

Stack tier: Ecosystem Services (A)

Connected TV PlatformSupply Side Platform (SSP)Video Advertising Platform

Was one of the largest independent video-focused SSPs globally before being absorbed into Magnite, the largest independent sell-side advertising platform

Ownership

Parent: Magnite

Competitors

Recent moves

Pre-call brief from ATDb — sourced from the live database, current as of Oct 12, 2026. Not a static screenshot.