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Principals | Division Leads | Branch Managers | Administrative Managers

Principals

Mick Gronewold, PE

Principal and Chief Executive Officer

Joel Zirkle, PG

Principal

Noah Carmichael, PE

Principal

Matthew Johnson, PE

Principal

Nate Kass, PE, PLS

Principal

Jason Stoll, PE

Principal

Seth Gronewold, PE

Principal

Todd Shankland, CPA

Chief Financial Officer

Ryan Wicks, PE

Principal

Division Leads

Mick Gronewold, PE

Engineering Division Lead

Matt Schroeder

Environmental Division Lead

Branch Managers

Chris DeSilva, PE

Aurora, Illinois

Michael Hansen, PE

Champaign, Illinois
Marion, Illinois

Derek Thompson, PE

Freeport, Illinois

Jason Stoll, PE

Rochelle, Illinois

Ross Grimes, PG

Rockford, Illinois

Nate Kass, PE, PLS

Cedar Rapids, Iowa

Ryan Wicks, PE

Manchester and West Union, Iowa

Mick Gronewold, PE

Monroe, Wisconsin (Interim)

Matt Dahlem, PG

Sheboygan, Wisconsin

Administrative Managers

Todd Shankland, CPA

Principal and Chief Financial Officer

Ramona Thompson, SPHR, SHRM-SCP

Human Resources Manager

Derek Noll

IT Manager

Anna Derocher, CPSM

Marketing Manager