What does the Data Companies actually do??

[limbo]

One thing I will say that the details provided by those companies are more detailed and also they provide many customized tools to manipulate that data. To increase productivity, gathering more information, generating leads, filtering leads and even getting conversions.

These companies gathers data according to age, sex, demographics, internet browsing behavior, making purchases etc. So, you can imagine even though they look like facebook insights but actually they are far more sophisticated.