When comparing data mining service providers look at their experience, customer reviews, security measures, cost and post project support. The provider should be able to let you know if they have a process in place and make sure that you don't have unrealistic expectations. As I looked around, I had seen Datalance in the list of available data consulting and analytics companies. Even though it is important to consult with a number of providers, it is a good idea to see samples of their work, and select the most appropriate one for your business.