Marcien Jenckes serves as President, Advertising for Comcast Cable. In this role, he is responsible for Comcast’s portfolio of advertising assets, positioning Comcast for continued success and even greater levels of growth as the advertising market adapts to new technology and business models.

Previously, Marcien oversaw Comcast Cable’s residential lines of business, which include Xfinity Video, Xfinity Internet, Xfinity Home, and Xfinity Voice, including the strategy, development, and deployment of innovative technologies and services across all categories to provide a great entertainment and communications experience for tens of millions of customers.

Prior to joining Comcast, Marcien was an entrepreneur, involved with a host of digital advertising and media syndication start-ups including Grab Networks and Voxant. He also held a variety of leadership roles at AOL Inc., where he launched AOL’s free web services, including the free AOL.com portal. Prior to AOL, Marcien worked as a consultant for McKinsey & Company in their media and telecom practice.

Marcien holds a MBA from the Darden School at the University of Virginia, and a BA in economics and political science from New York University.