David Heinemeier Hansson | Ruby on Rails

image credit: James Duncan Davidson/O'Reilly Media, Inc./Wikimedia Commons David Heinemeier Hansson was born on October 15, 1979 in Copenhagen, Denmark. He is the creator of Ruby on Rails, an open source web application framework for the Ruby programming language. Hansson is also a partner at 37signals. He was recognized in 2005 by Google and O'Reilly with the Hacker of the Year award for his creation of Ruby on Rails.






David Karp | Tumblr

image credit: edans/FlickrDavid Karp was born on July 6, 1986 in New York City, New York. Karp is the founder of Tumblr, a short-form blogging platform.


Dries Buytaert | Drupal

image credit: Buytaert was born on November 19, 1978 in Wilrijk, Belgium. Buytaert is the founder and lead of the free and open source Drupal Content Management System (CMS). Drupal is used as a back-end system for websites. 








Dustin Moskovitz | Facebook

image source: davemc500hats/Flickr

Dustin Moskovitz went to University of Illinois at Urbana-Champaign and Harvard University where he along with college roomates Mark Zuckerberg and Chris Hughes started Facebook.




Elon Musk | Tesla

image credit: b_d_solis/FlickrElon Musk was born on on June 28, 1971 in South Africa. Musk is the founder and CEO of the electric automotive company Tesla Motors, and SpaceX, a private aerospace company specializing in space transport. He is also one of the co-founders of PayPal and chairman of SolarCity, a provider of solar energy systems. Musk graduated from the University of Pennsylvania with a B.A. in Economics and a B.S. in Physics.