![Zach Siviglia, PE, QSD](https://markthomas.com/wp-content/uploads/2023/11/Zach-Siviglia_website.jpg)
Zach Siviglia, PE, QSD
President + Chief Executive Officer
![Matt Brogan, PE](https://markthomas.com/wp-content/uploads/2023/11/Matt-Brogan_website.jpg)
Matt Brogan, PE
Principal + Vice President
![Sasha Dansky, PE, QSD](https://markthomas.com/wp-content/uploads/2022/09/Dansky-New-1.jpg)
Sasha Dansky, PE, QSD
Principal + Vice President
![Shawn O'Keefe, PE, QSD](https://markthomas.com/wp-content/uploads/2023/11/Shawn-OKeefe_website.jpg)
Shawn O'Keefe, PE, QSD
Principal + Vice President
![Matt Stringer, PLS](https://markthomas.com/wp-content/uploads/2023/01/Matt-Stinger-2.jpg)
Matt Stringer, PLS
Principal + Vice President
![Kimberly Post](https://markthomas.com/wp-content/uploads/2023/11/Kim-Post_website.jpg)
Kimberly Post
Chief Financial Officer
Technical Leaders
![Martha Dadala, PE](https://markthomas.com/wp-content/uploads/2023/09/Martha_website-1.jpg)
Martha Dadala, PE
Transportation Division Manager + Associate Principal
![Darin Johnson, PE](https://markthomas.com/wp-content/uploads/2023/11/Darin-Johnson_website.jpg)
Darin Johnson, PE
Transportation Division Manager + Associate Principal
![Dave Moritz, PLS](https://markthomas.com/wp-content/uploads/2023/11/Dave-Moritz_website.jpg)
Dave Moritz, PLS
Survey Division Manager + Associate Principal
![Ed Noriega, PE](https://markthomas.com/wp-content/uploads/2022/09/Ed-Noriega-1.jpg)
Ed Noriega, PE
Transportation Division Manager + Associate Principal
![Benjamin Porter, PE](https://markthomas.com/wp-content/uploads/2023/11/Ben-Porter_website.jpg)
Benjamin Porter, PE
District Management Division Manager + Associate Principal
![Pat Somerville, PE](https://markthomas.com/wp-content/uploads/2022/09/Pat-Somerville-Casual.jpg)
Pat Somerville, PE
Transportation Division Manager + Associate Principal
![Brandon Benton, PLS](https://markthomas.com/wp-content/uploads/2022/09/Brandon-Benton.jpg)
Brandon Benton, PLS
Survey Division Manager + Associate
![Eric Fredrickson, PE](https://markthomas.com/wp-content/uploads/2022/09/Eric-Fredrickson.jpg)
Eric Fredrickson, PE
Senior Structures Manager + Associate
![Jason Hickey, SE](https://markthomas.com/wp-content/uploads/2022/11/Jason-Hickey.jpg)
Jason Hickey, SE
Structures Division Manager + Associate
![Eric Lilly, PE, QSD, CCM](https://markthomas.com/wp-content/uploads/2024/01/Eric-Lilly_website-1.jpg)
Eric Lilly, PE, QSD, CCM
Construction Management Division Manager
![Vince Mammano](https://markthomas.com/wp-content/uploads/2024/01/Vince-Mammano_website.jpg)
Vince Mammano
Director of Strategic Solutions
![Etty Mercurio, PE](https://markthomas.com/wp-content/uploads/2022/09/Etty-Mercurio.JPG.jpg)
Etty Mercurio, PE
Transportation Division Manager + Associate
![Aaron Silva, PE](https://markthomas.com/wp-content/uploads/2021/12/Aaron-Silva.jpg)
Aaron Silva, PE
Senior Project Manager + Associate
![Erik Smith, RLA](https://markthomas.com/wp-content/uploads/2022/09/Erik-Smith-1.jpg)
Erik Smith, RLA
Landscape Architecture & Urban Design Division Manager + Associate
![Raul Cervantes](https://markthomas.com/wp-content/uploads/2023/11/Raul-Cervantes_website.jpg)
Raul Cervantes
Transportation Division Manager
Corporate Leaders
![Ryan Bissegger](https://markthomas.com/wp-content/uploads/2023/11/Ryan-Bissegger_website.jpg)
Ryan Bissegger
New Business Director + Associate
![Yen Dau](https://markthomas.com/wp-content/uploads/2023/11/Yen-Dau_website.jpg)
Yen Dau
Accounting Director + Associate
![Annie Lucero](https://markthomas.com/wp-content/uploads/2023/11/Annie-Lucero_website.jpg)
Annie Lucero
Human Resources Director + Associate
![Megan Moschetti](https://markthomas.com/wp-content/uploads/2023/11/Megan-Moschetti_website.jpg)
Megan Moschetti
Marketing & Communications Director + Associate
![Paul Edson](https://markthomas.com/wp-content/uploads/2021/12/Paul-Edson-1.jpg)
Paul Edson
IT Director