KCBY.com 11 Starbucks picks Square for payments processing, investment CNET The mobile payments startup will handle the coffeehouse chain's credit and debit purchases, while getting a $25 millioninvestment in return. by Steven Musil Mobile payments startup Square has formed an extensive partnership with Starbucks that … Starbucks to use Square for payments, will invest $25 million Reuters Square Partners With Starbucks To Process All Credit, Debit Card Transactions Mashable Starbucks Invests in Square Wall Street Journal Businessweek – Forbes all 127 news articles