Founding History of Twitter

Founded by Evan Williams, Noah Glass, Biz Stone, and Jack Dorsey.

Started design and development efforts and acquired the domain name in March 2006

Launched as Twttr in closed beta in March 2006.

Acquired the domain name in May 2006.

Incorporated as Twitter Inc. in June 2006.

Launched in open beta in July 2006.

Reincorporated as Twitter Inc. in April 2007.

Raised over $1.5 billion USD in 13 funding rounds.

Started trading on the NYSE in November 2013.

Headquartered in San Francisco, USA.

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Year 1 of Twitter


Month 0

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Month 2

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Version 1 of Twitter (Website)

JUL 2006

Stats of Twitter (Pre-IPO)

2006 to 2009

2010 to 2013

Full Year 1 of Twitter

Y1 of Twitter.pdf

MAR 2006 to FEB 2007

Extras of Twitter

2005 OCT Evan Williams on the technology of podcasting

2006 JUN.pdf

2006 JUN Articles of Incorporation

2006 JUL Twttr promo.

2008 NOV Biz Stone keynote

2013 MAY The Future Has Already Arrived

Form S-1.pdf

2013 NOV Form S-1