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Julie Lein

Co-founder and President


Julie is the co-founder and President of Tumml, an urban ventures accelerator. A nonprofit, Tumml’s mission is to empower entrepreneurs to solve urban problems. Tumml works directly with early stage startups by providing free office space, mentorship, and seed funding to help urban innovators grow their businesses and make a significant impact on their communities.

Tumml was named “The Next Urban Innovation” by Dr. Michael Porter’s Initiative for a Competitive Inner City and “Best Startup” at the San Francisco Business Times 2014 Tech & Innovation Awards. Julie and the Tumml cohort companies have been featured in several publications, including Forbes, CSpan, VentureBeat, Entrepreneur Magazine, and Silicon Valley Business Journal, among others. Julie has an MBA from MIT Sloan and a BA from Stanford.