Profile: Jack Dorsey

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Jack Dorsey is an American entrepreneur who is best known as the founder of Twitter. He was described as as an outstanding innovator under the age of 35 by MIT's Technology Review and he also co-founded the electronic payment method Square. Dorsey attended Missouri University of Science and Technology before he transferred to New York University, where he came up with the idea for Twitter. Dorsey started his company that dispatched couriers and taxis from a web based platform; and in July 2000 he came up with the idea of having a real-time short message communication service available for his company.


Dorsey approached Odeo, a directory and search destination website for RSS syndicated audio & video, and together with Isaac Stone created Twitter. They received an investment from Evan Williams; an American entrepreneur who has founded several Internet companies, including Pyra Labs.  In October 2008, Williams took over the role of Chief Executive Officer at Twitter and Dorsey became chairman of the board. Since 2008, Twitter as gained a lot of popularity worldwide and is estimated to have almost 200 million users; while generating 65 million tweets and handling over 800,000 search queries daily. Twitter is often referred to as “the SMS of the Internet” and continues to increase its number of users.

Jack Dorsey is currently also serving as CEO for Square; a system that can be used to send paperless receipts via SMS or email. He continues to explore and invent and lives by his three guiding principles: simplicity, constraint and craftsmanship.