Only recognised the last one. It's Steve Jurvetson, from DFJ.
He got the one of the first Model S's. Also invested in Tesla.
VIN 1: Elon
VIN 2: Steve Jurvetson, board member Tesla/SpaceX (also has Model S VIN#1)
VIN 3: Mark Templeton, President / CEO of Citrix (Owned one of first Roadsters)
VIN 4: Sergey Brin, ..Google, likes pink Teslas (http://www.youtube.com/watch?v=22AQyWBSWrg)
VIN 5: ??
VIN 6: ??