Bloomberg L.P. is a privately held financial, software, data, and media company headquartered in Midtown Manhattan, New York City. It was founded by Michael Bloomberg in 1981, with the help of Thomas Secunda, Duncan MacMillan, Charles Zegar, and a 30% ownership investment by Merrill Lynch.Bloomberg L.P. provides financial software tools such as an analytics and equity trading platform, data services, and news to financial companies and organizations through the Bloomberg Terminal (via its Bloomberg Professional Service), its core revenue-generating product. Bloomberg L.P. also includes a wire service (Bloomberg News), a global television network (Bloomberg Television), digital websites, radio stations (Bloomberg Radio), subscription-only newsletters, and two magazines: Bloomberg Businessweek and Bloomberg Markets.In 2014, Bloomberg L.P. launched Bloomberg Politics, a multiplatform media property that merged the company's political news teams, and has recruited two veteran political journalists, Mark Halperin and John Heilemann, to run it.