Marcien Jenckes

President, Xumo at Comcast

Marcien Jenckes was selected to lead the streaming platform joint venture between Comcast Corporation and Charter Communications in 2022. In this role, Jenckes is tasked with leading the team and developing the business and monetization models.

Jenckes most recently served as President of Advertising for Comcast Cable since 2017. Prior to this role, he was responsible for Comcast Cable’s residential lines of business, including video and Internet. He led the strategy, development, and deployment of innovative technologies and services across all categories to provide great experiences for tens of millions of customers.

In 2019, Jenckes spearheaded On Addressable, along with Charter and Cox, designed to bring additional scale and momentum to addressable television advertising. He also pioneered Blockgraph, first incubated within Comcast’s FreeWheel, an advertising technology company serving the video and television ecosystem, before spinning out as a joint venture between Comcast, Charter and Paramount (formerly ViacomCBS), to help marketers use audience insights for TV and premium video advertising.

Before joining Comcast, Jenckes 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.


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