I guess what I meant to say is;
Has there ever been a startup that started small then became successful on its own, instead of having a large financial backup beforehand? If so, may I ask for a list of them?
Thank you!
UPDATE: Thanks to NetTecture, I have found out that angel investors aren't the very sole investors for a business but rather, they often become the startup's mentors in that they would give advice and provide initial financial support to get the startup ready for real investors.