Thornton Tomasetti Leadership
As an independent firm, our leaders are employee-shareholders of the firm, with no shareholder holding more than 6% 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.
Board of Directors

Steven
Hofmeister
Managing Principal & Structural Engineering Practice Co-Leader
Kansas City
+1.816.412.1836
/
Practice Leaders

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

Matthew
Kmetz
Senior Principal and Protective Design & Security Practice Leader
New York
+1.212.367.2901
/

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

Steven
Hofmeister
Managing Principal & Structural Engineering Practice Co-Leader
Kansas City
+1.816.412.1836
/