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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

Subsidiaries

Pre-call brief from ATDb — sourced from the live database, current as of May 30, 2026. Not a static screenshot.