Goldman Sachs Group Inc. has backed skyscrapers and movie studios. But its big winner lately is a once-sleepy credit bureau.
Goldman bought TransUnion, the smallest of the three main credit-reporting firms, in 2012. By the time it went public three years later, TransUnion had become a data-mining machine, gathering billions of seemingly insignificant tidbits about ordinary Americans that it analyzed and sold to lenders, insurers and others.
Source: Wall Street Journal