Adbrain

Leading independent cross-device identity resolution provider before acquisition

Adbrain was a London-based programmatic advertising technology company that specialized in cross-device identity resolution and audience targeting. The company developed sophisticated identity mapping technology that allowed advertisers and platforms to recognize and track users across multiple devices (smartphones, tablets, desktops, connected TVs) without relying on cookies or device IDs alone. This capability was crucial for advertisers seeking to deliver consistent messaging and measure campaign effectiveness across the fragmented digital landscape. Adbrain's platform used probabilistic and deterministic matching techniques to create unified user profiles, enabling more accurate frequency capping, attribution modeling, and personalized advertising at scale. The company served demand-side platforms (DSPs), data management platforms (DMPs), and advertisers looking to improve their cross-device targeting capabilities. In 2016, Adbrain was acquired by The Trade Desk, one of the largest independent DSPs, which integrated Adbrain's identity resolution technology into its platform to enhance its cross-device advertising capabilities and compete more effectively with walled gardens like Google and Facebook.