Tom Preston-Werner net worth: Tom Preston-Werner is an American inventor, software program developer, and entrepreneur who has a net worth of $440 million. Tom Preston-Werner was born in Dubuque, Iowa in October 1979. He is finest recognized for being the co-founder and former CEO of the corporate GitHub. He based the corporate in 2007 with Chris Wanstrath after they have been each working on the Web improvement framework firm Ruby on Rails. Preston-Werner resigned from the corporate in 2014 after harassment accusations from one of many firm’s programmers. GitHub permits a number of coders to work on the identical piece of code and never lose monitor of their modifications and has been valued at $2 billion. They have had greater than 11 million customers work on greater than 29 million initiatives. GitHub’s purchasers embody Microsoft, NASA, Walmart, and the governments of the United States and the United Kingdom. In 2012 GitHub raised the most important first spherical of enterprise capital funding at $100 million. Preston-Werner additionally created the avatar service Gravatar which he bought to Matt Mullengweg, the founding father of WordPress. He went on to co-found the non-profit group Codestarter which donates computer systems to youngster programmers.