PubMatic Activate

Redwood City, California, United States · Founded 2023

1001-5000 employees · PUBM

Sourced & current · updated May 11, 2026Website

Buy-side platform giving advertisers direct access to PubMatic's omnichannel inventory via non-bidded direct deals. Launched 2023.

Where they sit

Stack tier: Infrastructure & Data (B)

Demand Side Platform (DSP)Programmatic Platform

Buy-side access layer within PubMatic's SSP ecosystem, competing with DSPs and SPO tools by offering direct, non-bidded inventory access