Is it possible to segregate answers based on emails?

We have an international survey trying to gain participants from all over the planet (around 550 participants), but for some of our questions it would be helpful to separate out people from the same institution. They would give similar answers for items like test volumes and test methods.
So, what I am asking is there an automated way to look at people with one institutional email... like wisc.edu, lumc,edu or harvard.edu?
If there isn't an automated way to do it, how do I manually segregate responses by an individuals email?