Promotions for Black Friday deals started two months before the day after Thanksgiving, AdGooroo finds.
The vendor aims to use the money to fund technology development.
Retargeting platform vendor AdRoll has raised $15 million in a funding round led by Foundation Capital.
In addition to expanding product offerings, AdRoll will add more staff in its San Francisco headquarters and open new domestic and international offices.
"With the new resources, we are excited to further shape how all brands collect, analyze and act on marketing data," says Aaron Bell, AdRoll’s founder and CEO.
Previous investors Merus Capital and Accel Partners also took part in the funding round.