NBCUniversal Media, LLC, abbreviated as NBCU, is an American multinational mass media and entertainment conglomerate that is a subsidiary of Comcast and headquartered at 30 Rockefeller Plaza in Midtow
NBCUniversal's headquarters at the Comcast Building (former RCA Building at 30 Rockefeller Plaza) in New York City
NBC Tower in Chicago, where the company's Midwest operations, along with WMAQ-TV are based out of
10 Universal City Plaza (in Los Angeles County) in 2015 after Comcast acquired GE's remaining stake in NBCUniversal. Notice the wording on the top of the building changed. The Comcast headquarters can be seen at Universal Studios Hollywood.