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

Infrastructure Group Leader

Burt Naumann

Regional Office Leader

George Podrebarac

Office Leader – Chicago Loop

Jenny Christel headshot

Jenny Christel

Director of Human Resources

John Kissinger

John Kissinger

President & CEO

Schwichtenberg Jon Cropped

Jon Schwichtenberg

Office Leader – Minneapolis

Karyn Erickson

Karyn Erickson

Office Leader – Sarasota, Turks and Caicos


Ken Grebe

Chief Operating Officer


Loei Badreddine

In Remembrance of Loei


Lori Rosenthal

Facilities Group Leader


Mary Beth Pettit

Transportation Group Leader

Ortiz, Nelson

Nelson Ortiz

Office Leader – Miami

Kressin, Pat Cropped

Pat Kressin

Vice President of Business Development

Pat Skalecki headshot

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

Office Leader – Madison

Leadership Team

Ost, Andre 2014 Website Square

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

Hoffman, Curt_website

Curt Hoffmann

Practice Area Leader – Industrial

Herzberg Cropped

Dan Herzberg

Practice Area Leader – Transportation

Kilbert Dan Cropped

Dan Kilbert

Market Team Leader – Healthcare

Koslo, David

David Koslo

Practice Area Leader – Survey

Ed Freer

Market Area Leader – Landscape Architecture

Fred Groth

Market Area Leader – Hospitality / DFD

Jason Gerke

Practice Area Leader – Mechanical, Electrical, Plumbing

Rosner Cropped

Jeff Rosner

Practice Area Leader – Facilities

Hansen James Cropped

Jim Hansen

Practice Area Leader – Site Development

Jim Hayes

Market Area Leader – Healthcare


Jim Lisak

Practice Area Leader – Water

Pepitone, Joe

Joe Pepitone

Practice Area Leader – Landscape Architecture

Jose Lizasoain

Practice Area Leader – Mechanical

Justyce Dixon

Justyce Dixon

Corporate Marketing and Communications Leader

Kevin Wood

Kevin Wood

Practice Team Leader – Bridges

Sanchz Kristan Cropped

Kristan Sanchez

Market Area Leader – Planning

Witzling Larry Cropped

Larry Witzling

Senior Planner

Mike Mohs

Michael Mohs

Practice Area Leader – Minneapolis Transportation

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

Humphrey_Roger 2019 Website Square

Roger Humphrey

Practice Area Leader – Site Development

Ryan Cournoyer

Ryan Cournoyer

Practice Area Leader – Construction

Guetschow Ryan

Ryan Guetschow

Market Team Leader – Industrial

Kratsch, Shawna

Shawna Kratsch-Zepeda

Market Area Leader – Minneapolis

Stephanie Hacker

Stephanie Hacker

Strategic Planning Leader


Steve Fisco

Practice Team Leader – Site Development

Rech Steve Cropped

Steve Rech

Practice Area Leader – Structural

Stevens Tom 2019 01 Website Square

Tom Stevens

Practice Area Leader – Infrastructure