Surveys are performed to collect market data, when you participate in surveys, and the information you provided will be collected. They will use the data to create better products and services and run a better marketing campaign. They will use your data that is for sure.
Exactly! It is actually the purpose of conducting the survey in the first place. The companies that are sponsoring the surveys are doing so to get data from their customers about their product and services in order to find out the best way to upgrade them.