With 45 employees, Harmsen is big enough to offer the expertise your project needs, and small enough to give you the attention your success requires.


Surveying Image

Lord Hill Park Stream Bridge Crossing Engineering 2

 Si View Park Rendering sm

Hamsen Office Sign

Land Surveying

Civil Engineering

Land Use Planning


Aaron Tyson, PLS
Director of Surveying

Matt Schneiders, PLS
Project Surveyor

Andy McLean, PLS
Project Surveyor

Harley Pawley, PLS
Project Surveyor

Todd Pocock, PLS
Project Surveyor

Jim Hildenbrand, PLS, cFeds
Project Surveyor

Mark Guthrie, PLS     Project Surveyor



David Harmsen, PE,      LEED AP                 Director of Engineering

Michael Ryan, PE
Director, Oak Harbor Office

Steve Mason, PE,          LEED AP
Project Engineer

Nicholas Dalton, PE
Project Engineer

Darian Caldwell, EIT    Civil Engineering Designer

Casey Minnick, EIT
Civil Engineering Designer

Andrew Lofstedt, AICP                       Land Use Planner

Justin Pedersen
Land Use Planner


Karen Swift
COO - Everett Office

Dea Prince
Human Resources Director
Accounting Manager

Cherie Buzzell
Project Manager - Everett

Tate McNeal                           Project Manager - Mount Vernon

Samantha Hermansen
Adminstration - Oak Harbor




 Wetland Services Photo

 Aerial Imaging




Aerial Mapping/LiDAR Scanning



Amy Johnson
Project Manager/Associate Wetlands Specialist

Erynn Sullivan, CFM
Wetland Specialist, Field Survey


Jesse Gutierrez
Survey Technician, sUAS/Drone Operations Manager

Tyler Lauzen
Survey Technician, FAA Certified Remote Pilot