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.

Directors, Department Heads, Design Principals, and Corporate Advisors

Brent Ahrend
  • PE
Transportation Planning
Senior Associate, Assistant Department Head - Transportation Planning

Brent Ahrend combines technical skills in transportation analysis and modeling with strong communication and demonstrated abilities to provide...Learn More

Peter Alto
Architecture
Senior Associate, Architect

A graduate of the University of Oregon, Peter Alto has more than three decades of architectural experience. Peter manages the majority of...Learn More

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

Bill Bezio
  • AIA
  • NCARB
  • LEED AP
Architecture
Architecture Department Head

Bill Bezio has more than 20 years of professional experience in design and construction. Bill's experience includes office buildings, high-tech,...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

Carl Hampson
Architecture
Principal of Design - Architecture

With over 25 years of professional experience, Carl Hampson is an award-winning design leader with a passion for advancing the mission of his...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

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

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

Paul Kisling
  • AIA
  • NCARB
Architecture
Principal of Architecture

Paul Kisling has more than 35 years of design and construction experience. His past work includes residential/mixed use, commercial office, retail...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

David Linton
  • SE
  • PE
Structural Engineering
Associate, Assistant Department Head - Structural Engineering

David Linton is a project engineer in Mackenzie's structural group. He has worked on a range of high tech, retail, and industrial projects at the...Learn More

Jan Mason
Marketing
Senior Associate, Director of Marketing

From assistant to the president to landscape designer, Jan Mason has served many roles in her career at Mackenzie. She became head of the firm's...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

Tim Schweitzer
  • SE
Structural Engineering
Senior Associate, Department Head - Structural Engineering

During his long tenure at Mackenzie, Tim Schweitzer has provided design for a variety of structures including the design of tilt panels, concrete...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

Michael Talbot
Interiors
Principal of Design - Workplace

Michael Talbot is Mackenzie’s Principal of Design -Workplace in our Portland, Vancouver, and Seattle offices. Michael brings nearly 20 years of...Learn More

Morgan Toth
  • NCIDQ #29802
Interiors
Senior Associate, Department Head - Interiors

Morgan Toth joined Mackenzie's Interiors Department in early 2005 with experience in space planning, furniture selection, color selection, and...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

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