The founder of Tiger Management and a former Lehman Brothers executive have founded a private equity infrastructure firm.

Julian Robertson is backing Tiger Infrastructure Partners, which will be run by Emil Henry, the former assistant U.S. Treasury secretary last seen running infrastructure private equity for Lehman Brothers. The new firm will focus on energy, water, waste, communications and transportation investments in North America and Europe.

“There are many small and medium-sized infrastructure businesses that are outside the focus of larger infrastructure investors and strategic buyers,” Henry said in a statement. “Many of these businesses’ growth prospects are constrained by their capital needs. We seek to fill that gap.”

Joining Henry at the new firm will be Leanne Bell, formerly of General Electric, Adam Emmert, formerly of Highstar Capital, and a trio of Henry’s former Lehman Brothers colleagues: Marc Blair, Alessandro Boninsegna and Pascal Casavecchia.