Meet Our People

Our people are at the heart of Clark Dietz. Across our services, they bring experience, ideas, and perspective to the challenges our clients face and the communities we serve. As an employee-owned company, we take ownership in the work we do, the relationships we build, and the value we create.

The people featured here help lead our teams, projects, and firm forward, supported by talented professionals across Clark Dietz who make our work possible every day. Together, we are Engineering Quality of Life.

Learn more about the work we do and what it’s like to be part of Clark Dietz.
See Our Work   |   Explore Careers at Clark Dietz

Antonio Acevedo, PE
Antonio Acevedo, PETransportation Team Lead
Transportation
Scott Anstandig, CPM
Scott Anstandig, CPMMarketing Director
Christopher J. Beyer, PE
Christopher J. Beyer, PECivil/Environmental Team Lead
Municipal
Emily Basalla, PE, CFM
Emily Basalla, PE, CFMWisconsin Regional Director
Stormwater, Board of Directors, Municipal Engineer
Andis Berzins, PE
Andis Berzins, PEConstruction Team Leader, Central Indiana
Construction
Andrea Bretl, PE
Andrea Bretl, PECentral Illinois Area Manager, Civil/Environmental Team Lead
Wastewater
Board of Directors
Leigh Burgess, PE, PTOE
Leigh Burgess, PE, PTOEEast Michigan Area Manager
Transportation, Traffic
Joanna Cabaj, SHRM-CP
Joanna Cabaj, SHRM-CPHR Business Partner
Human Resources
Robert Chandler, PE
Robert Chandler, PEProject Manager
Transportation
Wes Christmas, MBA, PE, ENV SP
Wes Christmas, MBA, PE, ENV SPPresident and Chief Executive Officer
Transportation, Wastewater, Stormwater, Municipal,
Board of Directors
Scott Drabicki, PE
Scott Drabicki, PECivil/Environmental Team Lead
Municipal, Drinking Water, Stormwater, Wastewater
Mustafa Emir, PhD, PE
Mustafa Emir, PhD, PEExecutive Vice President of Marketing and Business Development
Stormwater, Municipal,
Board of Directors
Thomas Foley, PE
Thomas Foley, PESouthern Wisconsin Area Manager
Wastewater
Adam Groves, PE
Adam Groves, PETransportation Team Lead
Transportation
Christopher Gutkowski, PE, CFM, ENV SP
Christopher Gutkowski, PE, CFM, ENV SPSenior Engineer
Stormwater
Brandon Hasso, PE
Brandon Hasso, PETransportation Team Lead
Transportation, Traffic
Kevin Hetrick, PE
Kevin Hetrick, PEDirector of Risk, Quality & Safety
Transportation
Jon Howaniec, SHRM-CP
Jon Howaniec, SHRM-CPVice President, HR Director
Paul Izzo, PE
Paul Izzo, PEStructural Team Lead
Structures
Julian Jones, PE
Julian Jones, PEProject Manager
Transportation
Kevin Jones, PE
Kevin Jones, PETransportation Team Lead
Transportation
Chester Kochan, PE
Chester Kochan, PESenior Project Manager
Construction, Transportation
Shawn Kraus, PE
Shawn Kraus, PEConstruction Engineering Team Lead
Construction, Lighting
Michael Livermore
Michael LivermoreSenior Client Advisor, Illinois
Client Relations
Sean Marzano, SE, PE
Sean Marzano, SE, PEStructural Engineer
Transportation, Wastewater, Drinking Water, Stormwater, Power & Energy, Municipal, Mechanical, Electrical
Benjamin Metzler, PE
Benjamin Metzler, PESenior Engineer
Municipal
Justin Moed
Justin MoedClient Advisor, Central Indiana
Client Relations
Sherry Mulkins
Sherry MulkinsClient Advisor, Kentucky
Client Relations
Ivan Palencia, PE
Ivan Palencia, PEStructural Team Lead
Structures, Bridges
Nirav Patel, PE
Nirav Patel, PEN. Illinois Area Manager / MEP Team Lead
Wastewater, Drinking Water, Power & Energy, Mechanical, Electrical, Municipal, Board of Directors
Kendrick Payne, PE, LEED AP
Kendrick Payne, PE, LEED APSenior Project Engineer
Mechanical, Electrical
Jerald T. Payonk, PE
Jerald T. Payonk, PEChairman of the Board
Transportation, Board of Directors
Deborah Porter, PE
Deborah Porter, PEProject Engineer
Transportation
Brian Powers, PE, CFM, ENV SP
Brian Powers, PE, CFM, ENV SPCivil/Environmental Team Lead
Transportation, Stormwater
Ron Pretty, PE, PTOE
Ron Pretty, PE, PTOETraffic Team Leader
Transportation, Traffic
Robert Rayl, PE
Robert Rayl, PERegional Director, Michigan
Transportation, Board of Directors
Jonathan Rehner, PE
Jonathan Rehner, PEKentucky Area Manager
Water
Nicole Rindlisbacher
Nicole RindlisbacherHR Generalist
Human Resources
Kevin Risch, PE
Kevin Risch, PEProject Manager/Municipal Engineer
Transportation, Municipal
Keary Roberts, PE
Keary Roberts, PEConstruction Engineering Team Lead
Construction
Bri Roll
Bri RollProject Development Consultant
Client Relations
Thomas Sereseroz, PE
Thomas Sereseroz, PEStructural Practice Lead
Structures, Bridges, Transportation
Christel Simonis, CCST
Christel Simonis, CCSTInstrumentation & Controls Technician
Controls, Electrical
Brian Smith, PE
Brian Smith, PE Central Michigan Area Manager
Transportation, Traffic
Shane Spicer, PE
Shane Spicer, PECivil/Environmental Team Lead
Civil, Environmental
Jack Stocks, PE
Jack Stocks, PESenior Engineer
Transportation
Drew Storey, CSSBB
Drew Storey, CSSBBClient Relations Director
Client Relations
Seth Swartz, CPA
Seth Swartz, CPAChief Financial Officer (CFO)
Accounting, Board of Directors
Diane Thoune, PE
Diane Thoune, PECivil/Environmental Team Lead
Wastewater, Drinking Water, Stormwater, Municipal
Heath Titzer, PE, PLS
Heath Titzer, PE, PLSSouthern Indiana Area Manager
Civil/Environmental, Board of Directors
Kaleb Trueblood
Kaleb TruebloodConstruction Engineering Team Lead
Construction
Tonia Westphal, PE, LEED AP
Tonia Westphal, PE, LEED APNorthern Wisconsin Area Manager
Power & Energy, Municipal,
Sean Widener, PE, PTOE
Sean Widener, PE, PTOEIllinois Regional Director, Treasurer
Transportation, Municipal,
Board of Directors
Lisa Zahrt, PE, LEED AP
Lisa Zahrt, PE, LEED APMechanical/Electrical Team Lead
Mechanical, Electrical
Paul Zouski, PE
Paul Zouski, PESenior Engineer
Electrical,
NFPA 70E Compliance Specialist

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