Alexandros Eleftheriadis is an entrepreneur, investor, musician, and ex-academic in electrical engineering. 

He is currently Chief Scientist and Co-Founder of Vidyo, Inc., a US-based global leader in interactive video communication systems, as well as a founding member of the investment team at Big Pi Ventures, a venture capital firm focusing on Greece.  He is also Co-Chair of the Real-Time Communications Subgroup in the Alliance for Open Media, a group founded by Amazon, Apple, Facebook, Google, Intel, Microsoft, and Netflix, among others, and which develops a new open source and royalty-free video codec for the Internet called AV1.  

Prior to that he was an Associate Professor of Electrical Engineering at Columbia, as well as a Marie Curie Chair and Associate Professor at the University of Athens. He holds more than 140 patents internationally, several of which are used in digital video and television standards such as H.264, HEVC, and Blu Ray.