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About Me and The Fein Line

This blog is a place where I can think out loud about the things that are important to me (outside of my family).  I'll focus on venture capital, start-ups and entrepreneurship, sports, politics, and the world in general.  I look forward to your comments and feedback.  You can reach me at

My formal bio:

Michael Feinstein is VP of Sales and Marketing at Digital Lumens, a developer of energy-efficient industrial lighting.  Prior to that, he was Managing Director at Sempre Management, an innovative investment firm.

Michael is an experienced investor and entrepreneur.  Prior to co-founding Sempre Management, Michael focused his efforts on new ideas in information technology, semiconductors, and clean energy.  Michael advised several start-ups, including Geezeo, GateRocket, and Good2gether.  He also served as a mentor for the Ignite Clean Energy Business Plan Competition and a Catalyst with the Deshpande Center for Technological Innovation at MIT.

Previously, Michael was a General Partner at Venrock Associates in Cambridge, MA.  While at Venrock, Michael was a Director of Kenet, Ciclon Semiconductor, CircleLending, and Boston-Power.

Prior to joining Venrock, Michael was a General Partner at Atlas Venture and led their US Communications investment team. In this capacity, he is a past member of the Board of Directors of WaveSmith Networks (acquired by CIENA Corp. in 2003), Quantum Bridge Communications (acquired by Motorola in 2004), Sandbridge Technology, and Ellacoya Networks. Previously, Michael was Vice President of Market Development for Nortel Networks. He joined Nortel as part of New Oak Communications, where he was Vice President of Product Marketing. Michael previously served as Vice President of Product Management for Shiva, where he also held several engineering and sales executive positions. Prior to Shiva, he held marketing, sales, and engineering executive positions at Cayman Systems and GCC Technologies.

Michael received a B.S. in Electrical Engineering and Computer Science from MIT.


View Michael Feinstein's profile on LinkedIn


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