Comcast Corporation (Nasdaq: CMCSA, CMCSK) is a global media and technology company with two primary businesses, Comcast Cable and NBCUniversal. Comcast Cable is the nation's largest video, high-speed Internet and phone provider to residential customers under the XFINITY brand as well as to businesses. Comcast has invested in technology to build a sophisticated network that delivers the fastest broadband speeds, and brings customers personalized video, communications and home management offerings. Comcast Corporation is a global media and technology company.