Co-founder of Duo Security, Arbor Networks, the Ann Arbor New Tech Meetup (5000+ members, 5 new companies every month), the Ann Arbor Skatepark, a2geeks (hosts of Ignite Ann Arbor and the Ann Arbor Maker Faire), and the Tech Brewery (startup co-op in an 1880's brewery). Mentor for Techstars Mobility (Detroit), and advisor to several other MadeInA2.com companies.