Twitter.

Official Website: twitter.com

Twitter is an online news and social networking service where users post and read short 140-character messages called "tweets". Registered users can post and read tweets, but those who are unregistered can only read them. 

CEO: Jack Dorsey (Oct 5, 2015–)

Headquarters: San Francisco, California, United States

Founded: March 21, 2006, San Francisco, California, United States

Founders:  

Evan Williams:

Evan Clark Williams is an American computer programmer and Internet entrepreneur who has founded several Internet companies. Williams was previously Chairman and CEO of Twitter, one of the internet's top ten websites. 

Born: March 31, 1972, Clarks, Nebraska, United States

Net worth: 1.48 billion USD (2016) Forbes

Spouse: Sara M. Williams (m. 2007)

Education: University of Nebraska–Lincoln

Parents: Monte Williams, Laurie Howe.

Noah Glass: 

Noah Glass is an American software developer, best known for his early work launching Twitter and Odeo, a podcasting company that closed in 2007.

Jack Dorsey:

Born: November 19, 1976, St. Louis, Missouri, United States

Net worth: 1.16 billion USD (2016) Forbes

Education: New York University, more

Parents: Tim Dorsey, Marcia Dorsey

  

Biz Stone:

Born: March 10, 1974, Boston, Massachusetts, United States

Spouse: Livia Stone (m. 2007)

Education: Northeastern University, more

 

Source: Internet.