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General Information

BirthplaceSt. Louis, MO


Current Companies

Co-Founder, Exec Chairman
Co-Founder, CEO
Board Member
Board Of Directors

Former Companies

CEO, Co-Founder

Former Financial Organizations

Web Presences


Photo Credit

Twitter / Twitter

Jack Dorsey

Jack Dorsey is the creator, co-founder, and Chairman of Twitter and co-founder & CEO of Square.

Originally from St. Louis, Jack’s early fascination for mass-transit and how cities function led him to Manhattan and programming real-time messaging systems for couriers, taxis, and emergency vehicles. Throughout this work, Jack witnessed thousands of workers in the field constantly updating where they were and what they were doing; Twitter is a constrained simplification designed for general usage and extended by the millions of people who make it their own every day.

Jack was recognized as one of Time Magazine’s 100 most influential people and was named an “outstanding innovator under the age of 35” by MIT’s Technology Review.

Recent Milestones


Company Date Round Size Participants
FiftyThree 6/2013Series A$15M9
Jelly HQ 5/2013Series A9 1/2012Seed$1.4M5
Flipboard 4/2011Series B$50M9
Message Bus 3/2011Series A$3.35M11
Kickstarter 3/2011Venture Round$10M18
Instagram 2/2011Series A$7M5
Artsy 11/2010Convertible Note$1.25M17
Flipboard 7/2010Series A$10.5M9
Open Places 6/2010Seed$1.1M7
Fancy 5/2010Series A$6M8
Foursquare 9/2009Angel$1.35M9



  1. FiftyThree, Maker Of Drawing App Paper, Raises $15 Million From Andreessen Horowitz And Others ( [edit]
  2. Jelly, Biz Stone’s Startup, Raises a Round (With a Little Help From Friends) ( [edit]
  3. A Travel Start-Up Raises Money for Planning Tourism Activities ( [edit]
  4. Flipboard Raises $50 Million Round At A $200 Million Valuation ( [edit]
  5. Message Bus: The Start Project’s First Graduate Launches, Pulls In A Cool $3 Million ( [edit]
  6. Kickstarter Fesses Up: The Crowd-Sourced Funding Startup Has Funding Too ( [edit]
  7. Instagram Raises $7M ( [edit]
  8. TechCrunch ( [edit]
  9. Meet Flipboard: Mike McCue Talks About Stealth "Social Magazine" Start-Up That Just Nabbed $10.5 Million in Funding ( [edit]
  10. Trazzler Gets $1 Million From Star Investors, Takes a Page From Twitter’s Playbook [Video] ( [edit]
  11. Citation Needed [add]
  12. JEE Main 2014 ( [edit]
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Last Edited 3/19/14

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