AppNexus
RebrandedNew York, NY, United States · Founded 2007
1001-5000 employees · N/A
AppNexus was a leading independent programmatic advertising technology platform that powered real-time bidding and ad exchanges before being acquired by AT&T in 2018.
Where they sit
Stack tier: Core Platforms (S)
Demand Side Platform (DSP)Supply Side Platform (SSP)Programmatic Platform
Was the largest independent programmatic ad tech platform globally prior to acquisition, serving as a neutral open alternative to Google's DoubleClick and other walled garden platforms.
Ownership
Parent: Microsoft (via Xandr acquisition)