You can use consumer data marketing services to leverage your first-party data assets, reduce privacy and data deprecation risks, and create an outside-in view of customers and prospects. But to realize these benefits, you’ll first have to select from a diverse set of vendors that vary by size, functionality, geography, and vertical market focus. B2C marketers should use this report to understand the value they can expect from a customer data marketing service provider and to select one based on size and functionality.