Mackenzie draws strength from the diverse talents and specialties of our staff. Click on the photos to get to know the members of our integrated team. Looking for a particular person, capability, or job function? Use the filter options or search field below.

Principals and Associate Principals

Betsy Benedict
Administration
Associate Principal, Corporate Advisor - HR

Betsy Benedict initially joined Mackenzie as the records manager and, eventually, became the director of human resources and the administrative...Learn More

Matt Butts
  • PE
  • LEED AP
Civil Engineering
Associate Principal, Director of Civil Engineering & Transportation Planning

Matt Butts leads Mackenzie's Civil Engineering and Transportation Planning departments. In addition to managing infrastructure and sports and...Learn More

Rusty Gesner
Architecture
Associate Principal, Corporate Advisor - CAD/BIM

Recognized in 2007 by Autodesk as a “Legend of AutoCAD”, Rusty Gesner is one of the industry's foremost software experts. A licensed architect,...Learn More

Brett Hanson
  • AIA
  • GGP
  • LEED AP
  • NCARB
Architecture
Associate Principal |Architect

Brett has architectural design and project management experience for a variety of project types including commercial, retail, industrial, higher...Learn More

Mark Hettum
  • SE
  • PE
  • LEED AP
Structural Engineering
Principal, Structural Engineer

A past director of structural engineering for the firm, Mark Hettum joined Mackenzie in 1993. Mark manages the firm's operations and serves as the...Learn More

Susan Higbee
  • NCIDQ #8724
Interiors
Principal, Director of Interiors

Susan Higbee is known for her ability to lead and direct project teams to maximize successful results. A principal of the firm, she joined...Learn More

Alison Hoagland
  • AIA
  • LEED AP
Architecture
Associate Principal, Architect

Alison Hoagland is a project manager and architect on Mackenzie's retail team, and serves as the firm's Kroger Account Manager. She has worked on...Learn More

Jeff Humphreys
  • AIA
  • CSI
  • LEED AP BD+C
Architecture
Associate Principal, Director of Architecture

For the past 7-8 years, Jeff Humphreys has specialized in public safety and emergency response facilities and has been heavily involved in nearly...Learn More

Lynne Ingram
  • NCIDQ #10058
Interiors
Associate Principal, Principal of Design - Interiors

Lynne Ingram is Mackenzie’s Principal of Design - Interiors. Lynne brings nearly 30 years of design and project management experience, and has a...Learn More

Todd Johnson
Land Use Planning
Associate Principal, Director of Land Use Planning

Todd Johnson has nearly two decades of planning experience. During that time, he has been active locally in regional planning and land use...Learn More

Terry Krause
  • AIA
  • NCARB
Architecture
Principal, Architect

Terry Krause specializes in retail architecture and has over 30 years of experience working with national retailers and developers. Terry is...Learn More

Dave Larson
  • PE
Civil Engineering
Associate Principal, Branch Manager - Vancouver, Civil Engineer

Dave Larson—both a licensed civil and traffic engineer—led the civil and traffic engineering departments at Mackenzie for more than 26 years....Learn More

Barb McCullough
  • SPHR
Administration
Associate Principal, Director of HR & Administration

Barb McCullough enjoys working with people, which explains why she splits her time between managing the accounting department and being the main...Learn More

Josh McDowell
  • SE
  • PE
  • LEED AP
Structural Engineering
Principal, Director of Structural Engineering

Josh McDowell leads Mackenzie's Structural Engineering Department, and has nearly two decades of experience in the field. He oversees the...Learn More

Rich Mitchell
  • AIA
  • LEED AP BD+C
  • NCARB
  • GGP
Architecture
Managing Principal, Architect

Rich Mitchell joined Mackenzie as a project architect in 1989. He is a past director of architecture for the firm, founded its Seattle office in...Learn More

Dick Spies
  • AIA
Architecture
Principal, Corporate Advisor - Design

Dick Spies joined Mackenzie in 1992 as director of design after nearly 25 years of architectural experience in Portland. Dick is able to quickly...Learn More

Bob Thompson
Architecture
Principal, Architect

Bob Thompson specializes in the planning and design of industrial manufacturing and distribution facilities. He is the preferred architect of many...Learn More

Dietrich Wieland
  • LEED AP BD+C
Architecture
Associate Principal, Director of Sustainability, Architect

Mackenzie's Director of Sustainability, Dietrich Wieland has more than 15 years of varied professional experience including commercial, retail,...Learn More

Dennis Woods
  • LEED AP
  • NCARB
Architecture
Associate Principal, Architect

Dennis Woods joined Mackenzie in 1977 after graduating from the University of Oregon and working for a year for a small firm in Salem, Oregon,...Learn More

Tom Wright
  • LEED AP
Land Use Planning
Principal, Department Head - Land Use Planning

A principal of the firm, Tom Wright leads Mackenzie's land use planning group and oversees the firm's Vancouver office. Tom's career assisting...Learn More