Our mission: To give everyone the power to create and share ideas and information instantly, without barriers.

Twitter usage

  • 288 million monthly active users
  • 500 million Tweets are sent per day
  • 80% of Twitter active users are on mobile
  • 77% of accounts are outside the U.S.
  • Twitter supports 33 languages
  • Vine: More than 40 million users

Company facts

  • 3,600 employees in offices around the world
  • 50% of employees are engineers
  • Incorporated April 19, 2007
  • At Twitter HQ we consume 1,440 hard boiled eggs weekly.
  • We also drink 585 gallons of coffee per week.



1355 Market Street
Suite 900
San Francisco, CA 94103

U.S. offices

Atlanta, Austin, Boston, Boulder, Chicago, Detroit, Los Angeles, New York, Seattle, Sunnyvale, Washington

International offices

Amsterdam, Bangalore, Berlin, Dublin, Gurgaon, Hong Kong, Jakarta, London, Madrid, Mumbai, Paris, Rio de Janeiro, São Paulo, Singapore, Sydney, Seoul, Tokyo, Toronto, Vancouver


Board of directors

Jack Dorsey (Chairman)
Co-Founder, Twitter, and CEO, Square

Dick Costolo 
CEO, Twitter

Peter Chernin
Founder and Chairman,
Chernin Entertainment and The Chernin Group

Peter Currie 
President, Currie Capital

Peter Fenton 
General Partner, Benchmark Capital

David Rosenblatt 
CEO, 1stdibs.com, Inc.

Marjorie Scardino
Chairman, MacArthur Foundation

Evan Williams 
CEO, Medium; CEO, Obvious Corp.

Executive Team

Dick Costolo

Adam Bain
President, Global Revenue & Partnerships

Vijaya Gadde
General Counsel

Katie Jacobs Stanton
VP, Global Media

Gordon Lee
Controller & Interim Chief Accounting Officer

Adam Messinger

Anthony Noto

Alex Roetter
SVP, Engineering

Brian “Skip” Schipper
VP, Human Resources

Gabriel Stricker

Kevin Weil
SVP, Product