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Thornton Tomasetti Leadership

As an independent firm, our leaders are employee-shareholders of the firm, with no shareholder holding more than 4% of outstanding shares. We follow a matrix structure, in which our technical staff belong to both a practice and a region. Project teams are assembled to match client requirements, and may draw from across both regions and practices.

Executive Leaders

squarzini

Michael Squarzini Co-CEO New York +1.917.661.7800 /

Pete DiMaggio

Peter DiMaggio Co-CEO New York +1.917.661.7800 /

Wayne Stocks

Wayne Stocks President Washington +1.202.580.6300 /

Gary Panariello

Gary Panariello Managing Director San Francisco +1.415.365.6900 / /

Mark Tamaro

Mark Tamaro Managing Director Washington +1.202.580.6348 /

Practice Leaders

Najib Abboud

Najib Abboud Managing Principal & Applied Science Practice Co-Leader New York +1.212.367.3074 /

abruzzo

John Abruzzo Managing Principal & Forensics Practice Co-Leader San Francisco +1.415.365.6930 / /

degaetano

Sergio De Gaetano Senior Principal & Façade Engineering Practice Leader London +44.020.8124.6469 /

Deerkoski, John 1

John Deerkoski Senior Principal & Transportation Practice Leader New York +1.917.416.7430 /

Darren Hartman

Darren Hartman Managing Principal & Construction Engineering Practice Leader Kansas City +1.816.412.1864 /

lomax

Scott Lomax Managing Principal & Structural Engineering Practice Co-Leader New York +1.917.661.8026 /

malsch

Elisabeth Malsch Managing Principal & Forensics Practice Co-Leader New York +1.212.367.3076 / /

mancini

Gary Mancini Managing Principal & Renewal Practice Leader New York +1.917.661.8170 / /

Matt Olender

Matthew Olender Senior Principal & Forensics Practice Co-Leader Fort Lauderdale +1.954.903.9310 / /

van_eepoel

Peggy Phillips Managing Principal and Protective Design & Security Practice Leader Washington +1.202.580.6388 /

pietrzak

Julie Pietrzak Principal and Sustainability & Resilience Practice Leader New York +1.917.661.7972 /

Scott Schneider

Scott Schneider Senior Principal & Structural Engineering Practice Co-Leader New York +1.212.367.2882 /

woelke

Pawel Woelke Senior Principal & Applied Science Practice Co-Leader New York +1.212.367.2983 /

Regional Leaders

curtis

Theresa Curtis Senior Principal & West Region Leader San Francisco +1.415.365.6928 /

Jeff Elliott

Jeffery Elliott Senior Principal & Mid-Atlantic South Region Leader Dallas +1.972.764.6254 / /

feuerborn

James Feuerborn Managing Principal & New York Metropolitan Region Co-Leader New York +1.212.367.2932 / /

gottlieb

Eli Gottlieb Managing Principal & New York Metropolitan Region Co-Leader New York +1.917.661.7840 /

szycher

Stephen Szycher Managing Principal & Northeast Region Leader New York +1.917.661.7962 /

thompson

Phill Thompson Principal & European Region Leader Edinburgh +44.1383.828271 /

treece

Robert Treece Managing Principal & Midwest Region Leader Kansas City +1.816.412.1838 /