Ferren has an extensive public speaking career as a subject matter expert, that has spanned a wide range of professional, government, and academic audiences. His over 250 speaking engagements include Harvard's Center for Public Leadership, MIT, MIT Media Lab, MIT Sloan School, Wharton, The Smithsonian Institution, SIGGRAPH, the ACM/IEEE Supercomupting Conference SC98, The Art Center College of Design, "Florida International University" 2018, The U.S. Council on Competitiveness, The Caltech Entrepreneurs Forum, The International Design Conference at Aspen (IDCA), The Aspen Ideas Festival 2015, NASA, The U.S. Army, The US Air Force, The U.S. Navy, UCLA, USC, National Academy of Engineering, NYU, "Intel Corporation", Infosys, The AUVSI Driverless Car Summit, The Society of Motion Picture and Television Engineers, The Engineers' Council 2012, Two Optical Fiber Conferences (OFC-2007 & OFC-2017), The Engineers Council, The Electric Infrastructure Security Summit VII, Westminster Palace, London, The Global Grand Challenges Summit 2013, in London, The EIS Council World Summit VIII on Infrastructure Security, U.S. Capitol Building, The Smithsonian American Art Museum, The Smithsonian Digital Futures Conference, MIT FAB11 - 2015, The Museum of Modern Art (MoMA New York City) "Working and Living: The High Tech Nomad", The Institute for Foreign Policy Analysis, Inc. (IFPA) Fletcher Conference 2007, The Envision Confeerence, Two Geodesign Summits, RealComm IBcon 2015, TTI Vanguard, Techfire, The American Institute of Aeronautics and Astronautics (AIAA), "TTI/Vanguard", The Aspen Ideas Festival, The GEOINT Symposium, The 2017 National Competitiveness Forum, 2018 Miyamoto International, Great Minds Series, several E.G. Conferences, has given multiple TED talks, the IEEE EZVO19 Innovation conference, and The Explore's Club Global Exploration Summit GLEX2019 in Lisbon.