Who owns Twitter?

Twitter has come a long way since its launch seven years ago. But it wouldn't be the company it is today if it some generous investors hadn't stepped up in its infancy.

(Read more: Facebook friends Twitter-like trending topics )

Here's a look at the some of Twitter's biggest backers.

Be sure to tune in to CNBC's premier of "Twitter Revolution" on Wednesday at 9 p.m. ET/PT.

By CNBC's Cadie Thompson. Follow her on Twitter @CadieThompson.