Jack Dorsey - CEO @ Twitter - Crunchbase Person ProfileLocation San Francisco, California, United StatesRegions San Francisco Bay Area, West Coast, Western USGender MaleInvestor Type Investment Partner, Individual/Angel Investor Stage Seed Number of Exits 5Twitter View on Twitter 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
