About Our Team Meet The Team Behind GRAEF

GRAEF is more than just a business. We are a committed employer and community member. This wouldn’t be possible without the hard work, commitment and expertise of our professionals, who are absolutely vital to the firm’s success.

Executive Team

Brent Otto

Brent Otto

Chief Financial Officer

Brent Pitcher

Brent Pitcher

Infrastructure Group Leader


Burt Naumann

Regional Office Leader

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George Podrebarac

Office Leader – Chicago Loop

Jenny Christel headshot

Jenny Christel

Director of Human Resources

Jim Hansen

Jim Hansen

Office Leader – Sarasota, Turks and Caicos

John Kissinger

John Kissinger

President & CEO

Schwichtenberg Jon Cropped

Jon Schwichtenberg

Office Leader – Minneapolis


Ken Grebe

Chief Operating Officer


Loei Badreddine

In Remembrance of Loei


Lori Rosenthal

Facilities Group Leader

Mary Beth Pettit

Mary Beth Pettit

Transportation Group Leader

Ortiz, Nelson

Nelson Ortiz

Office Leader – Miami

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Pat Kressin

Vice President of Business Development

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Pat Skalecki

Office Leader – Green Bay

Pete Johnston

Pete Johnston

Office Leader – Chicago O’Hare

Bub Rich Cropped

Rich Bub

Board Chair

Scott Hinrichs

Office Leader – Orlando

Website Tony Balestreri2

Tony Balistreri

Director of Technology Services

Uriah Wolfe

Uriah Wolfe

Office Leader – Madison

Leadership Team

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Andre Ost

Practice Area Leader – Transportation Design

Beau Sanders

Beau Sanders

Market Team Leader – Mixed Use

Hansen Craig

Craig Hansen

Practice Area Leader – Infrastructure

Craig Huebner

Craig Huebner

Practice Team Leader – Planning + Urban Design

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Curt Hoffmann

Practice Area Leader – Industrial

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Dan Herzberg

Practice Area Leader – Transportation

Kilbert Dan Cropped

Dan Kilbert

Market Team Leader – Healthcare

David Koslo

David Koslo

Practice Area Leader – Survey

Ed Freer

Ed Freer

Market Area Leader – Landscape Architecture

Fred Groth

Fred Groth

Market Area Leader – Hospitality / DFD


Jason Gerke

Practice Area Leader – Mechanical, Electrical, Plumbing

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Jeff Rosner

Practice Area Leader – Facilities

Jim Hayes

Market Area Leader – Healthcare


Jim Lisak

Practice Area Leader – Water

Joanna Colletti

Joanna Colletti

Market Area Leader – Water

Pepitone, Joe

Joe Pepitone

Practice Area Leader – Landscape Architecture

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Jose Lizasoain

Practice Area Leader – Mechanical

Justyce Dixon

Justyce Dixon

Corporate Marketing and Communications Leader

Karyn Erickson

Karyn Erickson

Senior Coastal Engineer

Kevin Wood

Kevin Wood

Practice Team Leader – Bridges

Sanchz Kristan Cropped

Kristan Sanchez

Market Area Leader – Planning

Kyle Poklar

Kyle Poklar

Practice Area Leader – Structural

Witzling Larry Cropped

Larry Witzling

Senior Planner

Mike Mohs

Michael Mohs

Practice Area Leader – Minneapolis Transportation

Mike Paulos

Mike Paulos

Market Area Leader – Municipal

Vogel Mike Cropped

Mike Vogel

Market Area Leader – Cultural, Sports & Recreation, Education

Desimone, Richard

Richard DeSimone

Practice Team Leader – Structural


Robin Seibert

Market Area Leader – Florida

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Roger Humphrey

Practice Area Leader – Site Development

Ryan Cournoyer

Ryan Cournoyer

Practice Area Leader – Construction

Guetschow Ryan

Ryan Guetschow

Market Team Leader – Industrial

Shawna Kratsch

Shawna Kratsch-Zepeda

Market Area Leader – Minneapolis


Steve Fisco

Practice Team Leader – Site Development

Rech Steve Cropped

Steve Rech

Director of Structural Engineering

Tom Stevens

Tom Stevens

Practice Area Leader – Infrastructure