A
Adblock Plus
Cologne, North Rhine-Westphalia, Germany · Founded 2006
51-200 employees
Sourced & current · updated Jun 27, 2026
Leading ad-blocking browser extension that blocks intrusive ads and trackers while allowing acceptable ads through an optional whitelist program.
Where they sit
Stack tier: Ecosystem Services (A)
Privacy TechnologyAd Fraud Prevention
World's most widely installed ad-blocking browser extension with hundreds of millions of users globally
Ownership
Parent: Eyeo