Oprah Winfrey may be the first Black woman self-made billionaire, but Janice Bryant Howroyd, CEO of Act•1 Group, is the first Black woman to own a billion-dollar company. In 2014 Act•1, the nation’s largest Black female-owned business, held the No. 2 spot on the BE Industrial/Service list of the national’s largest Black-owned companies, with $2.2 billion in revenues for 2013. … [Read more...] about Tuesday Open Thread: The Nation’s Largest Black-Owned Businesses