I got into an accident and wrote down the persons insurance info but left out the company name what do i do?

so i got into a small accident i pulled out on a right turn the person didnt stop and we colided my drivers side front it kinda pushed in and the paint is comming off and some of my paint is on their car we exchanged insurance info but i forgot to write down the insurance companys name what do i do? oh and we didnt call the cops for an incident report