System1 is a large independent marketplace for keyword pay-per-click advertising. Its platform analyzes billions of consumer attributes and uses “pre-targeting” algorithms to unlock and fulfill consumer intent across channels including social, native, email, search, market research, and lead generation. System1 technology anchors on six major optimization systems, using statistical and machine-learning models to identify how consumers will respond to a variety of inputs, digitally echoing how people naturally behave. This allows to tap into and serve consumer intent on a massive scale.