Our Team

Sure, we’ve earned a reputation for quality over the past 90 years. No one sticks around as long as we have without that. But like they say, it’s not what you know, it’s who you know. Our clients may walk in the door because of our knowledge, but they keep coming back because of our people.

Whether they’ve been on the team for four months or 40 years, the people walking Guernsey’s halls are serious about their work – and seriously interested in building a partnership with the clients they serve.

Design & Expertise

Aaron Gilio

Junior Consultant

Abby Johnston

Interior Designer

Alex Sherman

GIS Analyst

Allen Jones, PE, LEED AP BD+C

Senior Mechanical Engineer

Anne Henderson

Accounts Payable Specialist

Ashley Hogue

Marketing Coordinator/Writer

Austin McKiel

Architectural Designer

Bill Bontempi, AIA

Senior Architect

Bill Hager

Consultant

Blake LeBlanc

Utility Analyst

Blythe Gentry, RCID, IIDA

Senior Interior Designer

Brayden Weaver

Civil Engineering Intern

Brett Biesemeyer, PE, PLS, PMP

Senior Civil Engineer

Brian Marshall, PE

Senior Process/Environmental Engineer

Carder Gutteridge

Utility Analyst

Carol Williams

Human Resources Manager

Chad Hartmann

Junior Consultant

Chris Logan

Full Stack Developer

Chris Looney

Sr. Consultant, Energy & Utility Solutions

Chris Manahan, LEED AP BD+C

Senior Mechanical Designer

Chris Mccraney

Project Manager

Chris Willis, PE

Senior Structural Engineer

Christopher Harris, PE, SE

Senior Structural Engineer

Chuck Holland

Senior Electrical Designer

Claire Donohoe

Interior Designer

Colton Neumeister

Junior Consultant

Corbin Campbell

Marketing Coordinator/Writer

Dan Berg, JD

Consultant
Energy & Utility Solutions

Daniel Check

Utility Rate Analyst

Daniel Ross

Consultant

Daniel Sperle

Urban Planner

Darby Anderson, PE

Senior Civil Engineer

Darren Scheller

Director of Information Technology

Dave Stanton

Construction Administration

David Palmer

Architectural Designer

Donielle Megna

Project Accountant

Ed Donwerth, PE

Civil Engineering Project Manager

Eden Roman

Junior Consultant

Emily Fitzsimmons

Community / Environmental Planner

Enja Gumbs

Electrical Designer

Eric Connelly

Senior Consultant

Eric Mathews, CISSP, CISM

Cybersecurity Consultant

Gary Lynn, PE

Senior Electrical Engineer

Glenda Crotchett, MBA

Director of Accounting

Greg Peters

Project Manager

Haibah Haibe, EI

Structural Engineering Intern

Hitesh Patel

Junior Consultant
Energy & Utility Solutions

Hussain Saif

Civil Engineer

Jack Spradling

Civil Designer

Jake Tillman

Civil Engineering Intern

James Johnson

Snr. System Administrator

Jason Hancock, CEP

Project Manager
Energy & Utility Solutions

J.D. Clark, AIA

Senior Architect

Jeffrey Meyers

Project Manager

Jerry McAtee

System Planning Engineer

Joe Schmitt

Civil Engineering Technician

Joe Schwab

Mechanical Designer

Joe Spann

Senior Consultant
Energy & Utility Solutions

John Nache

Senior Consultant
Energy & Utility Solutions

Jordan Salata

Project Manager
Energy & Utility Solutions

Josh Dan, CPA, MBA

Rate Analyst

Josh Morgan

Mechanical Engineering Intern

Joshua Strauss

Wholesale Rate Analyst

Justin Gallas, AIA

Senior Architect

Kasha Egan, PE, SE, CWI, PTI, ICCMSI

Structural Engineer

Kathy Tanksley

Design Group Operations Coordinator

Katie Fiddler, AICP

Environmental Scientist/Planner

Keith Don Holman, AIA, LEED GA., CDT

Architect

Kevin Decker

Architect | Construction Specifier

Kirk Williams, MBA, AIA

Architect

Kristin Check, RCID, IIDA, LEED AP ID+C, WELL AP

Senior Interior Designer

Kumar Mayank, PhD, CEM

Consultant
Energy & Utility Solutions

Landon Jones

Community Planner

Laura Bergey, AICP

Environmental Scientist/Planner

Laura Fawcett, CGEIT, CISM

Governance Risk and Compliance Consultant

Laura Seiter-Melton

Senior Accountant

Lauren Creutz

Consultant
Energy & Utility Solutions

Lauren Wrobel

GIS Consultant

Leslie Caldwell, NCIDQ, RCID

Registered Interior Designer

Lucy Wang

Utility Rate Analyst

Luis Becerra

Consultant
Energy & Utility Solutions

Luke Roznovsky

Cybersecurity Analyst

Madeline Harris

Environmental Scientist/Planner

Maria Angelica Prado, AIA

Architect

Maritza Diaz

Payroll Manager

Matthew Watson, PMP, CISSP

Cybersecurity Consultant

Max Williamson

Utility Rate Analyst

Melissa Lowry, PE

Mechanical Engineer

Melissa Milligan

Marketing Coordinator

Mike Davis, CEM, CDSM, CMVP

Project Manager
Energy & Utility Solutions

Mike Patel

Architectural Designer

Mitch Moon

Reprographic Production Coordinator

Nathan Hurst

Senior Consultant

Nick Snodgrass

GIS Consultant

Paul Decker

Junior Consultant
Energy & Utility Solutions

Pierre Derenoncourt

BIM Coordinator

Quade Nelson

Electrical Engineering Intern

Rabie Taha

Electrical Engineering Intern

Rafael Prado, PE

Mechanical Engineer

Raychel King

Construction Administrator

Ryan Lewis

Utility Analyst

Sam Fitzpatrick

Senior Consultant
Energy & Utility Solutions

Season Crabtree, PE

Senior Water Resources Engineer

Shahjahan Ali

Sr. Civil Engineer

Steve Scovel, NCARB

Senior Architect

Steve Sprague, AIA

Senior Architect

Tara Hirrill

Administrative/Technical Assistant

Tiffany Lam

Consultant
Energy & Utility Solutions

Tina Dao

Water Resources Engineering Intern

Tom McCrae

Consultant
Energy & Utility Solutions

Tracy Nguyen

Electrical Engineering Intern

Trevor McDougall, PE

Transportation Engineer

Troy Pastorello

Engineering Design Technician

William Jimenez

Architectural Designer

Yuming Zhu

Graphic Designer/Production Artist

Zablon Nyanumba

Electrical Designer

Zac Hager, PE, MSETM

Managing Consultant

Zhen Zhu, PhD

Economist