[PAR] [TLE] Jack Dorsey [SEP] Jack Dorsey (born November 19, 1976) is an American computer programmer and internet entrepreneur widely known as a co-founder and CEO of Twitter, and as the founder and CEO of Square, a mobile payments company.  In 2008, he was named to the "MIT Technology Review" TR35 as one of the top 35 innovators in the world under the age of 35.  For 2012, "The Wall Street Journal" gave him the "Innovator of the Year Award" for technology. [PAR] [TLE] Dick Costolo [SEP] Richard William "Dick" Costolo ( ) was the CEO of Twitter from 2010 to 2015; he also served as the COO before becoming CEO.  He took over as CEO from Evan Williams in October 2010.  On June 11, 2015, it was announced that Costolo would step down as CEO on July 1, 2015 and would be replaced by Twitter co-founder and chairman Jack Dorsey on an interim basis until the Board of Directors could find a replacement.  On August 8, 2015, The New York Times reported that Costolo would be leaving Twitter's Board of Directors by the end of the year or when a new CEO is appointed.
[PAR] [TLE] Jack Dorsey [ SEP ] Jack Dorsey ( born November 19 , 1976 ) is an American computer programmer and internet entrepreneur widely known as a co - founder and CEO of Twitter , and as the founder and CEO of Square , a mobile payments company . In 2008 , he was named to the " MIT Technology Review " TR35 as one of the top 35 innovators in the world under the age of 35 . For 2012 , " The Wall Street Journal " gave him the " Innovator of the Year Award " for technology . [PAR] [TLE] Dick Costolo [ SEP ] Richard William " Dick " Costolo ( ) was the CEO of Twitter from 2010 to 2015 ; he also served as the COO before becoming CEO . He took over as CEO from Evan Williams in October 2010 . On June 11 , 2015 , it was announced that Costolo would step down as CEO on July 1 , 2015 and would be replaced by Twitter co - founder and chairman Jack Dorsey on an interim basis until the Board of Directors could find a replacement . On August 8 , 2015 , The New York Times reported that Costolo would be leaving Twitter 's Board of Directors by the end of the year or when a new CEO is appointed .
Dick Costolo was the CEO of which company before the co-founder took over in 2015?
Dick Costolo was the CEO of which company before the co - founder took over in 2015 ?
Twitter
Twitter