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Thomas Abkemeier
Vice President, Saint Louis Office Manager

Nathan Adamczak
Geotechnical Staff

Steve Adamczak
Vice President

Monique Anderson
Vice President

David Asunskis
Associate

Jorge Avalos
Engineer

Jim Bailey
Senior Associate, National Well Services Director

Elizabeth Barnett
Senior Geologist

Peter Bayley
Senior Professional Geologist

Rob Blasberg
Vice President

Bronson Bowling
St. Louis Office Geotechnical Services Group Leader

Justin Bowman
Geology Staff

Stan Boyle
Senior Vice President

Kyle Brennan
Vice President, Anchorage Office Manager

Craig Brooks
Laboratory Manager

Kelli Browning
Lab Manager

Gerard Buechel
Senior Vice President

Jason Buenker
Senior Associate

Jeremy Butkovich
Vice President

Tri Buu
Geotechnical Engineer

Christian Canfield
Environmental Staff

Bill Capaul
Geologist

Pete Castro
Senior Associate

Stephen Chase
Geotechnical Staff

Debanik Chaudhuri
Senior Associate

Joe Clare
Tunnel & Underground Practice Leader

Merci Clinton
Biologist

Ryan Collins
Associate

Sarah Corbin
Senior Biologist

Stan Crawforth
Vice President

Adam Crispin
Senior Biologist

Daniel Cruz
Geology Staff

Colin Cummins
Senior Engineer

Christopher Darrah
Vice President, Fairbanks Office Manager

Kailyn Davis
Environmental Geology Staff

R. Travis Deane
Vice President

Elyse Denkers
Ecologist / Permitting Specialist

Stephen Diem
Senior Associate

Forrest Dobson
Geotechnical Staff

Morgen Donohue
Environmental Staff

Elliot Draxler
Geotechnical Staff

James Dutt
Associate

Stephen Ellingson
Associate Vice President

Gregory Fischer
President

Hollie Ellis
Treasurer/Secretary

Dana Fjare
Environmental Scientist

Dean Francuch
Senior Associate

Andrew Frick
Environmental Scientist

Kristen Freiburger
Senior Associate

Samuel Furmanski
Geotechnical Staff

Peggy Ganse
Vice President

Scott Garbs
Associate

Scott Gaulke
Vice President

Katarah Glashan
Geotechnical Staff

Stafford Glashan
Senior Engineer

Fawn Glassburn
Geology Staff

Tiffany Green
Environmental Scientist

Paul Godlewski
Vice President

Matt Grizzell
Associate

Roberto Guardia
Vice President

Gustavo Guerrero
Geotechnical Staff

Nina Guizzetti
Geotechnical Staff

Mark Halbert
Materials Technican

Mason Hall
Environmental Staff

Corbett Hansen
Senior Associate

Mike Harney
Vice President, Seattle Office Manager

Scott Harris
Geotechnical Staff

Joseph Heavin
Associate

Judy Hepner
Environmental Staff

Russell Hepner
Geotechnical Staff

Randy Hessong
Environmental Scientist

Sheila Hinckley
Senior Environmental Scientist

Adrian Holmes
Associate

Aimee Holmes
Senior Engineer & Geologist

Oliver Hoopes
Senior Associate

Ted Hopkins
Vice President

Shoshana Howard
Associate

Alia Hubbard
Environmental Staff

Jerry Jacksha
Senior Associate

David Jacobson
Senior Geologist

Ashley Jaramillo
Senior Chemist

Michael Jaramillo
Senior Chemist

Per Johnson
Associate

Hayley Justinak
Geotechnical Staff

Kerem Kalkay
Senior Engineer

Kelsey Karney
Geology Staff

Gus Kays
Senior Associate

Thomas Keatts
Senior Engineer

Chris Kemp
Senior Geologist

Cary Kindberg
Senior Geospatial Coordinator

Samantha Kleich
Geotechnical Staff

Annette Kovacs
Laboratory Supervisor, Lead Laboratory Technician

Bill Kremer
Senior Associate

Michael Kucker
Vice President, Underground Services Deputy Director

Louis Larios
Geotechnical Staff

Robert Leaf
Geotechnical Staff

Carole Leigh
Senior Associate

Brentton Leeper
Geotechnical Staff

Mark Lockwood
Senior Associate

Paul Macklin
Vice President

Austin Madsen
Geology Staff

Peter Malicky
Environmental Scientist

Vonmarie Martinez
Senior Engineer

Amber Masters
Environmental Scientist

Wendy Mathieson
Vice President

Logan McClish
Hydraulic Staff

Connor McCord
Geology Staff

Alexandra McCracken
Geology Staff

Neal McCulloch
Vice President, Director of Railroad Services

Shae McLafferty
Geology Staff

Dan McMahon
Vice President

Jennifer Mead
Senior Engineer

Elliott Mecham
Senior Associate

Jordan Melby
Senior Engineer

Dale Miller 
Engineer

Elizabeth Milodragovich
Engineering Geologist

Bob Mitchell
Board of Directors - Chair

Pedro Garcia Montesinos
Geotechnical Staff

Benjamin Moore
Senior Engineer

David Nemetz
Senior Environmental Geologist

Travis Nguyen
Senior Associate

Hamid Reza Nouri
Senior Engineer

Tom Oborne
Geologist

Mark Ohlstrom
Vice President

Gregory Olsen
Engineer

LeeAnne Osgood
Associate

Grace Paananen
Geotechnical Staff

Martin Page
Vice President

Corey Pagels
Hydrogeology Staff

Eric Paslack
Associate

Samuel Pastor
Geotechnical Staff

Beatrix Paulay
Geotechnical Staff

Dave Pell
Geotechnical Staff

Chris Pepe
Environmental Scientist

Bill Perkins
Vice President, Earthquake Engineering Services

Emily Persinger
Geology Staff

Kathryn Petek
Vice President

Ryan Peterson
Engineer

Andrew Piccini
Engineering Staff

Park Piao
Vice President

William Pollock
Geotechnical Staff

Wendy Presler
Senior Associate

Kyle Radach
Geological Engineering Staff

David Randall
Senior Environmental Scientist

Jessica Randolph
Senior Geotechnical Engineer

Matthew Reed
Geology Staff

Brian Reznick
Vice President

August Ridde
Geologist

Jake Risken
Senior Engineer

Justin Risley
Environmental Staff

Alec Rizzo
Geoscientist

Red Robinson
Senior Vice President, Director of Underground Services

Kyle Romney
Senior Engineer

Robert Romocki
Senior Consultant

Mark A. Rutkowski
Associate Vice President, Madison Office Manager

Evan Saint-Pierre
Geotechnical Staff

Morgan Sanger
Geotechnical Staff

Michael Santi
Engineer

Hisham Sarieddine
Vice President

Genevieve Sasaki
Senior Engineer

Joseph Sawdey
Senior Geologist and Hydrogeologist

Russ Schwab
Vice President, Chief Technology Officer

Jaimy Schwarber
Geotechnical Staff

Erik Scott
Senior Geologist

Stephen Semmens
Geotechnical Staff

Briana Shaffer
Laboratory Manger, GIS Specialist

Ali Shahbazian
Associate

Sam Sideras
Associate

Seth Sonnier
Senior Geologist

Cody Sorensen
Senior Geologist

Jacob Sowers
Laboratory Manager, Geotechnical Staff

Kat Spence 
Geotechnical Staff

Tyler Stephens
Vice President

Justin Stoffel
Associate

Lucas Strom
Senior Engineer

Meg Strong
Vice President

Amy Summe
Associate

Kevin Szubrych
Engineer

Andrew Tangsombatvisit
Geotechnical Staff

Jessa Tibbetts
Environmental Scientist

R. Kevin Tillis
Vice President

Agnes Tirao
Senior Associate

Travis Thomsen
Associate

Zach Thon
Geoscientist

Brian Trott
Senior Engineer

David Vara
Vice President, Denver Office Manager

Philip Wallbridge
Senior Engineer

Katie Walter
Vice President

James Walters
Associate

David Ward
Vice President

Ben Warren
Engineer

Katra Wedeking
Senior Geologist

Alison Wharry
Geology Staff

Rex Whistler
Senior Engineer

Stephanie Wanderer
Senior Geologist

Mark Wieners
Senior Geologist

Rachel Willis
Environmental Scientist

Clinton Wilson
Senior Associate

Sean Wilson
Senior Engineering Geologist

Klaus Winkler
Senior Principal Engineering Geologist

Kevin Wood
Senior Engineer

Adam Wyborny
Environmental Engineer

Paul Van Horne
Associate

Ryan Van Leuven
Associate

Mia Verdolin
Geotechnical Staff

Brian Volmer
Senior Engineer

Symon Ybarra
Equipment Manager/Field Technician

Callan Yu
Associate

Carolina Zamora
Geology Staff

Walter Zitz
Senior Engineer

James Zschau
Senior Geologist

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