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Core Studio

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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Eric Grusenmeyer
Eric Grusenmeyer
Associate Principal & Kansas City Office Co-Director
egrusenmeyer@thorntontomasetti.com +1.816.412.1930 Kansas City
guerra
Hector Guerra
Associate Principal
hguerra@thorntontomasetti.com +1.954.903.9327 Fort Lauderdale
Darren Hartman
Darren Hartman
Managing Principal & Construction Engineering Practice Leader
dhartman@thorntontomasetti.com +1.816.412.1864 Kansas City
Walter Hartnett
Walter Hartnett
Senior Principal & Façade Engineering Practice Leader
whartnett@thorntontomasetti.com +1.917.661.7906 New York
Amy Hattan
Amy Hattan
Corporate Responsibility Officer
ahattan@thorntontomasetti.com +1.207.245.6072 Portland, ME
heinze
Douglas Heinze
Principal & Philadelphia Office Director
dheinze@thorntontomasetti.com +1.267.238.4034 Philadelphia
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