Victor Fuster

Riphean Investments

Guided by founders and operators, Riphean Investments is a private equity firm based in the VA-DC corridor. We provide growth equity through both early and late-stage investments, focusing on businesses impacting national security. Led by Founder and Partner Joel Griffin and Partner Brian DeMuth, our experience in the National Security market and in navigating successful exits uniquely positions us to accelerate the growth of businesses with powerful potential. Our approach uses a venture studio model to provide not only capital, but also shared services across our portfolio to handle financial, business administration, and go-to-market strategies.