C
Comcast Cable Communications
Philadelphia, Pennsylvania, United States · Founded 1963
10000+ employees · CMCSA
Sourced & current · updated May 30, 2026Website
Comcast's residential cable, internet, voice, and home-security business unit. Operates under the Xfinity consumer brand. Houses xFi advertising technology and consumer data assets feeding NBCU/Effectv.
Where they sit
Stack tier: Ecosystem Services (A)
Identity ResolutionConnected TV PlatformData Management Platform
Largest U.S. cable operator and one of the largest ISPs, serving as the data and distribution backbone for Comcast's enterprise advertising ecosystem
Ownership
Parent: Comcast Corporation
Subsidiaries