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SpotX

Rebranded

Denver, Colorado, United States · Founded 2007

501-1000 employees · NASDAQ:MGNI

Sourced & current · updated May 13, 20260 of 5 facts verifiedWebsite

SpotX was a leading video advertising platform and SSP that was acquired by Magnite in 2021 for $1.17B and has since been folded into Magnite's streaming business, with the SpotX brand retired.

Where they sit

Stack tier: Ecosystem Services (A)

Connected TV PlatformSupply Side Platform (SSP)Video Advertising Platform

Was one of the largest independent video SSPs globally, with particular strength in CTV and OTT monetization before being acquired by Magnite in 2021.

Ownership

Parent: Magnite

Competitors

Recent moves

Pre-call brief from ATDb — sourced from the live database, current as of May 13, 2026. Not a static screenshot.