Jack Dorsey
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Jack Patrick Dorsey is an American tech entrepreneur and businessman who co-founded Twitter, Inc., which operated social media service Twitter; financial technology company Block, Inc., which owns and
Dorsey in 2018
Dorsey in 2008
Dorsey and President Barack Obama at Twitter Town Hall in July 2011
President Donald Trump with Dorsey in the Oval Office of the White House on April 23, 2019
Block, Inc.
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Block, Inc. is an American technology company and financial services provider for consumers and merchants. Founded in 2009 by Jack Dorsey, it is the U.S. market leader in point-of-sale systems. As of
Jack Dorsey
…an American tech entrepreneur and businessman who co-founded Twitter, Inc., which operated social media service Twitter; financial technology company Block, Inc., which owns and operates Square, Cash App, Afterpay, Bitkey, and Tidal; and microblogging social networking service Bluesky. As of February 2026, Forbes…
Former Square headquarters building in San Francisco