Ad verification and app attribution 2 companies
Advertisers check that their ads were seen by real people on suitable pages, and app makers measure which ad brought each user.
Marketing measurement 4 companies
Marketers bring all their campaign data into one place, and use models and experiments to work out what each channel actually caused.
What's changing
Measuring without following people.
Privacy rules and phone settings now block much of the tracking ads relied on. Measurement is moving to statistical models and experiments that do not follow individuals.
Companies: ingrid's company map. Hiring signals: postings feed of 5 Nov 2026.





