AppNexus
RebrandedNew York, NY, United States · Founded 2007
1001-5000 employees · N/A
AppNexus was an American multinational technology company that operated a cloud-based software platform enabling and optimizing programmatic online advertising, founded in 2007 by former Right Media staff, CTO Brian O'Kelley, and Mike Nolet.
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)
