Startups Directory

StackAdapt is a self-serve programmatic advertising platform (DSP) that automates the buying and optimization of ad inventory across multiple channels including display, video, native, connected TV, audio, in-game, and digital out-of-home. The platform serves digital marketers and agencies by consolidating campaign planning, execution, and analysis into one streamlined interface with machine learning-powered optimization. StackAdapt eliminates the complexity of managing programmatic ads across fragmented channels and supply sources, delivering transparent pricing with no hidden tech fees.

System1 operates RAMP (Responsive Acquisition Marketing Platform), an AI-powered omnichannel customer acquisition platform that identifies consumer intent signals outside traditional search and matches high-intent users with relevant advertisers across hundreds of verticals. The company owns and operates 40+ digital properties (including MapQuest, HowStuffWorks, Startpage) that reach 120M monthly consumers, creating a unique data advantage. It acts as a sophisticated digital intermediary, using machine learning to group consumers into thousands of audience profiles and route them to the right advertising partners, monetizing both owned properties and partner networks.