Professionally, Dan is the Managing Director of Shamrock Ventures, BV, based in Amsterdam, The Netherlands.  He's committed his career to real time interactive communications and has been a seminal influence on Voice over IP (VoIP), streaming media, and interactive screen sharing/shared whiteboards.   He's been behind core technology and a range of patents that are some of the most cited in patent documents for VoIP, media streaming, real time web communications, collaborative computing, and location-based social media.  If you use Skype, GoToMeeting, or YouTube, among others, Dan's technology and its pioneering influence has touched your life. 

He was the co-founder and Chairman & CEO of InSoft, a company that merged with Netscape Communications Corp. in 1995. The merger brought the first commercial VoIP products, audio/video, streaming media servers, and standards for realtime media to the Internet, the first real time web platform, including RTSP (which is used daily by millions for web video).  After Netscape, Dan collaborated with artist/musician/inventor Todd Rundgren, with their Context Labs venture, on real time interactive artist technologies, Patronet.  After Context Labs, Dan was founder and Chairman & CEO of Context Media, which was acquired by Oracle in 2005.  The deal formed the basis of Oracle's "big data" collaborative search, "Fusion."  In 2006, he co-founded and was Chairman & CEO of gypsii, which now provides the location-based social media engine driving China's fastest growing Twitter-like microblog, Sina Weibo, with over 400 million users.  

He has received numerous awards, including Inc. Magazines’ Entrepreneur of the Year, the Red Herring Watch Award, the Upside Hot Startup Award, the University of Rhode Island's Alumni Excellence Award for Contributions to Science and Technology, and the NEA Presidents Award. A chapter in Tom Petzinger’s (Wall Street Journal) book, “The New Pioneers: The Men and Women Who Are Transforming the Workplace and Marketplace,” discusses the story of InSoft, and the seminal days of the real time Internet.  In 2012, Dan was selected to be a Sloan Fellow at the Massachusetts Institute of Technology (MIT).

Dan has also served as a Director and/or advisor for a variety of non-profits and educational institutions: The International School of Amsterdam, Tabor Academy, Marlboro College, University of Rhode Island, Friends Academy, Harrisburg Academy, Slater Center for Interactive Technologies, and the Buzzards Bay Coalition.  He has degrees from MIT, the University of Rhode Island, and attended Marlboro College.