invest in advise accelerate

visionary founders


At SUM Ventures, we invest in founders building fast-growth technology startups. We focus on CleanTech, FinTech and PropTech but will also invest opportunistically across all industries. Our growth focused approach has led to our 233% IRR since our launch in 2018. You can learn more about how we’ve invested and supported our founders by reviewing the deck for SUM Fund I.

View the Deck


We build relationships early with founders and then provide capital, resources and support to accelerate growth.


We work with venture funds, family offices, angel groups, and service providers to identify and co-invest in early-stage opportunities.

Track Record

Over the past 3 years we’ve been the first investor in numerous successful startups including Brius, UNest, Autotmotus, DressX, and Purlin. We’ve served as Board Members or C-Level executives at Marqeta, Acorns, UNest and Madison Marquette. We look forward to building on this success with the launch of our inaugural fund.

Photo of Natalia Modenova & Daria Shapovalova
Natalia Modenova & Daria Shapovalova
Photo of Kevin Cimring
Kevin Cimring
Photo of James Wratten
James Wratten
Photo of Jordan Justus
Jordan Justus