The AdTech Database

ATDb maps the advertising technology industry: the companies, the people who run them, the deals that reshape them, and the news that moves them — in one connected view. Look up who owns a company, who leads it, who it competes and integrates with, and get alerted when that changes.

It's an independent project built and run by Jon Holm, started to answer a question there was no single place to answer: who are all the players in AdTech, and how do they connect?

How the data works

Profiles start from public information and are enriched with AI, then checked. Facts carry their sources, ownership and leadership changes need independent confirmation before they're shown as fact, and corrections from readers go through a review queue. Read how verification works.

ATDb runs no ads and sells no placements: nothing on a profile is paid for. It's free during the beta.

Get in touch

Spotted something wrong, have a suggestion, or want to talk about ATDb? Send a message — every one is read. To fix a specific profile, use “Spotted an error?” at the bottom of that page.