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Jack Dorsey

Jack Dorsey

Occupation: programmer and internet entrepreneur

Birthday: November 19, 1976

Age: 45

Birthplace: St. Louis, Missouri

Nationality: United States, Germany, New Zealand

Birth Sign: Scorpio


Jack Patrick Dorsey is the co-founder and former CEO of Twitter, as well as the founder and CEO of Block, a financial payments company.

JAck Dorsey Career

Dorsey was born and raised in St. Louis, Missouri, and was raised Catholic. As a kid, Dorsey worked on and off as a fashion model, but by the age 14, Dorsey had become interested in dispatch routing. Some of the software he created is still used by taxicab companies. 

Dorsey ended up attending New York University in 1997 where he came up with the idea for Twitter, but he dropped out two years later, one semester short of graduating. 

jack dorsey college

After, Jack moved to California and started a company in Oakland to dispatch couriers, taxis, and emergency services from the Web. Later in 2000, he had the idea for a web-based realtime short message communication service.


Dorsey and Biz Stone built a prototype of Twitter in about two weeks and right away the idea attracted investment from Evan WilliamsAs the service began to grow, Dorsey chose the improvement of uptime as top priority, over creating revenue streams for the business which would later become an ongoing challenge for the company. 


Dorsey cofounded and developed a small business platform to accept debit and credit card payments on a mobile device called Square, which released in 2010.  

Products of Block include

  • Square
  • Cash App
  • Tidal
  • Spiral
  • TBD54566975

In 2021, CEO Jack Dorsey officially changed the name of the platform to Block, Inc. This was largely due to his interest in the blockchain.


Dorsey was announced as a new member of the board of directors of The Walt Disney Company on between 2013 and 2018.

Jack Dorsey Net Worth: $10 billion

Jack Dorsey owns around 2% of Twitter’s outstanding shares which are worth around $800 million. He also owns around 43 million shares of Square worth around $9 billion. He also controls around $1 billion worth of cash and other assets.

JACK DORSEY’s Favorite Books

JACK DORSEY’s Favorite Things

Jack Dorsey Homes

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