Signal: Chicago tech company Signal acquired by TransUnion

Chicago ad-tech startup Signal announced it's been scooped up by credit reporting agency TransUnion. Founded in 2009 as BrightTag, Signal gives brands data to help gain more knowledge about their customers. The startup raised more than $60 million to date, and it counts I2A, Pritzker Group Venture Capital, Baird Capital and Yahoo! Japan among its backers. Terms of the acquisition were not disclosed. Signal will join TransUnion's Chicago office, where the company is headquartered. Signal counts...