Amazon Ad Server

Defunct

Seattle, Washington, United States · Founded 2019

51-200 employees · AMZN

Sourced & current · updated Sep 9, 2026Website unavailable

Amazon Ad Server (formerly Sizmek) is Amazon's enterprise-grade ad serving and creative management platform, enabling advertisers and agencies to manage, deliver, and measure campaigns across channels.

Where they sit

Stack tier: Core Platforms (S)

Creative Management PlatformDemand Side Platform (DSP)Ad Server

Failed challenger to Google Campaign Manager 360 in the enterprise ad serving market; shut down in 2024 after failing to gain sufficient traction

Ownership

Parent: Amazon

Competitors

Campaign Manager 360