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R&D and technology play an essential role in our firm. We invest in constant learning, testing and innovation. That uniquely positions us to solve our clients’ most difficult problems.
Innovation Engine Our CORE groups manage our research and development efforts, from incremental efficiency improvements to solving some of the most challenging engineering problems of our time. Learn More
Innovation Output We believe collaboration amplifies our innovation potential and creates connections that lead to better, more imaginative solutions for our clients. Learn More
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Our People

Collaboration is the cornerstone of our success. Our people are its foundation.
Thornton Tomasetti

Thornton Tomasetti

Thornton Tomasetti

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pacitto
Steven Pacitto
Principal & General Director
spacitto@thorntontomasetti.com 1.917.661.7928 New York
Gary Panariello
Gary Panariello
Managing Director
GPanariello@thorntontomasetti.com +1.415.365.6900 San Francisco Click to download CV
Lam Pang headshot
Lam Pang
Associate
lpang@thorntontomasetti.com +1.617.250.4113 Boston
Elisa Paone
Elisa Paone
Principal
epaone@thorntontomasetti.com +1.212.839.5206 New York Click to download CV
patel
Rupa Patel
Principal
rpatel@thorntontomasetti.com +1.202.580.6384 Washington Click to download CV
John Peronto
John Peronto
Managing Principal & Chicago Office Co-Director
jperonto@thorntontomasetti.com +1.312.596.2022 Chicago
pessiki
Stephen Pessiki
Senior Vice President
spessiki@thorntontomasetti.com +1.212.367.2958 New York Click to download CV
van_eepoel
Peggy Phillips
Managing Principal and Protective Design & Security Practice Leader
pphillips@thorntontomasetti.com +1.202.580.6388 Washington
Julie Pietrzak
Julie Pietrzak
Senior Principal & Sustainability and Resilience Practice Leader
jpietrzak@thorntontomasetti.com +1.917.661.7972 New York
Pigach
Sergey Pigach
Senior Associate Applications Engineer
spigach@thorntontomasetti.com 917.661.7800 New York
pinto
Marguerite Pinto
Senior Principal & New York Office Co-Director
mpinto@thorntontomasetti.com +1.212.367.3096 New York Click to download CV
ponsades
Dom Ponsades
Senior Lead Researcher
dponsades@thorntontomasetti.com +1.917.661.8178 New York
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