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Evan Williams and Jack Dorsey.
So who were Twitter's first employees?
To answer that, you have to go all the way back to a company named Odeo.
Odeo was co-founded in 2005 by Evan "Ev" Williams, and the startup was going sideways. About one year in, Odeo employees started building Twitter as a side project. The 140-character platform grew from there.
Most of Odeo/Twitter's earliest employees are no longer at the company. But we trawled through a list of the first 500 Twitter accounts ever created and found 14 early staffers who worked on the product. [Note: The first documented Twitter account begins at 12. Numbers one through 11 were likely test accounts].
One of the early Twitter employees, Crystal Taylor, is still at the company. Most of the others - including all of its founders except for Jack Dorsey - have moved on.
It's worth noting that just because these people all had early access to Twitter, it doesn't mean they all made a fortune when it went public. It's unclear who was given shares when Ev Williams bought Odeo back from investors and restructured Twitter as a new company in 2006.
Regardless, here's what some of the early employees are up to now.