Cornerstone Group of Companies began in 1987 with an aim to providing its clients the world class acquisition and retention services. The company focuses singularly on the new opportunities that evolve marketing channel offers for our clients. Cornerstone can be the partner of the options you have for best online and offline data, digital products and services, dynamic data management and analytics and other quality services. The company believes at maintaining long term relationship with its clients. It tries to produce new products and services to meet the ever evolving needs of the clients. Cornerstone accomplishes its services by conducting its business in an ethical way and engaging and learning from the changing marketing trends.