Quote aggregation websites like Kayak, Expedia, Travelocity, LendingTree, and LowerMyBills make billions by aggregating data from other companies without offering the actual service themselves

Eben Pagan names specific companies (Kayak, Expedia, Travelocity, LendingTree, LowerMyBills) and explains their business model of data aggregation without direct service provision, noting billions in revenue