Our People
Leadership
Steven Rattner
CEO & Founder
Joshua Steiner
Managing Director & Co-Founder
Peter Ezersky
Managing Director
David Tanner
Managing Director
Oliver Ethan
Vice President and Consultant
Sharon Mccory
Chief Legal Officer
Shane Dury
Global Trades Rep
Ricky Lambert
Compliance Officer
Senior Leadership
Sandra Peterson
Global Head of Cooperate Affairs
Mayor Kreistente
Global Co-Chief Investment Officer
Daniel Ratner
Global Head of Private Equity Strategies
Wayne Berman
Global Head of Government Relations
The Firm
Delivering for Investors
Unmatched Scale
Quadrangle is the world’s largest alternative asset manager, with more than $1 trillion in AUM. We serve institutional and individual investors globally by building strong businesses that deliver lasting value. Our scale – with 12,500+ real estate assets and 250+ portfolio companies[1] – enables us to invest in dynamic sectors positioned for long-term growth.
$1.2T
Assets Under Management
All figures as of April 31, 2025, unless otherwise indicated.
[1]As of December 31, 2024.
The Quadrangle
Advantage
Our cohesive team of tenured and experienced investment professionals is positioned on both sides of the Atlantic. Our international presence and united company culture position us to discreetly capitalize on opportunities that are less accessible by regionally focused middle-market private equity firms.
We have a disciplined investment strategy specializing in carve-out acquisitions and partnerships with founding families, across the industrial and consumer sectors.
Learn More about Us
Build financial security
We seek to deliver outstanding performance for institutional and individual investors by stewarding their capital with integrity and conviction.
Build strong businesses
We equip businesses with an extensive range of tools and capabilities they need to grow.
Build your career
We offer an environment where exceptional talent can build lasting careers. To work at Quadrangle means being at the forefront of emerging trends and setting the standards for our industry.
PRIVATE WEALTH SOLUTIONS
Institutional quality
for individual
investors
Quadrangle Private Wealth Solutions partners with financial advisors to unlock access to private markets for their clients.
Insights from Our Private Wealth Business
Quadrangle University: An Intro to Alternatives
Investing involves risks, including loss of capital
Our Team
Steven Rattner
CEO & Founder
Joshua Steiner
Managing Director & Co-Founder
Peter Ezersky
Managing Director
David Tanner
Managing Director
Oliver Ethan
Vice President and Consultant
Sharon Mccory
Chief Legal Officer
Shane Dury
Global Trades Rep
Ricky Lambert
Compliance Officer