Principals and Associate Principals
Brent AhrendTransportation Planning
Associate Principal, Assistant Department Head - Transportation Planning
bahrend@mcknze.comBrent Ahrend combines technical skills in transportation analysis and modeling with strong communication and demonstrated abilities to provide...Learn More
Peter AltoArchitecture
Associate Principal, Architect
palto@mcknze.comA graduate of the University of Oregon, Peter Alto has more than three decades of architectural experience. Peter manages the majority of...Learn More
Alexis BauerInteriors
Associate Principal, Assistant Department Head - Interiors
abauer@mcknze.comAlexis Bauer brings many years of experience leading interior design teams on projects large and small. Alexis has worked extensively on tenant...Learn More
Matt ButtsCivil Engineering
Principal, Director of Civil Engineering & Transportation Planning
mbutts@mcknze.comMatt Butts leads Mackenzie's Civil Engineering and Transportation Planning departments. Matt manages most of the firm’s infrastructure and...Learn More
Michael ChenLand Use Planning
Associate Principal, Land Use Planning
mchen@mcknze.comMichael Chen brings expertise in land-use planning, SEPA review, permit entitlement, feasibility studies, project management, and business...Learn More
Brett ConwayArchitecture
Associate Principal, Architect
bconway@mcknze.comBrett Conway, an award-winning architect, has more than 30 years of design experience in the Pacific Northwest. Brett has focused on industrial...Learn More
Rusty GesnerArchitecture
Associate Principal, Corporate Advisor - CAD/BIM
rgesner@mcknze.comRecognized 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 HansonArchitecture
Associate Principal, Architect
bhanson@mcknze.comBrett Hanson has been involved in the design of complex projects across the Pacific Northwest, including fire and police essential facilities, and...Learn More
Mark HettumStructural Engineering
Principal, Structural Engineer
mhettum@mcknze.comMark Hettum joined Mackenzie in 1993. Mark manages the firm's operations and serves as the engineering principal on some of Mackenzie's most...Learn More
Monty HillArchitecture
Associate Principal, Design Director, Architect
mhill@mcknze.comMonty Hill, Design Director and Associate Principal at Mackenzie, brings over 25 years of architectural design experience. Monty has provided...Learn More
Alison HoaglandArchitecture
Principal, Department Head - Architecture
ahoagland@mcknze.comAlison Hoagland, a Principal at Mackenzie, has designed and delivered projects in a variety of markets, including retail, commercial, hospitality...Learn More
Jeff HumphreysArchitecture
Principal, Director of Architecture
jhumphreys@mcknze.comJeff Humphreys has focused his career on the assessment, design, and development of public projects, with a specialization in essential facilities...Learn More
Lynne IngramInteriors
Principal, Design Director, Director of Interior Design
lingram@mcknze.comLynne Ingram is Mackenzie’s Design Director - Interiors. Lynne brings nearly 30 years of design and project management experience, and has a broad...Learn More
Terry KrauseArchitecture
Principal, Architect
tkrause@mcknze.comTerry Krause leads Mackenzie’s retail team, bringing over 30 years of professional experience working with national retailers and developers....Learn More
Jan MasonMarketing
Associate Principal, Director of Marketing
jmason@mcknze.comFrom 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 McCulloughAdministration
Associate Principal, Director of HR & Administration
bmccullough@mcknze.comBarb McCullough enjoys working with people, which explains why she splits her time between managing the accounting department and being the main...Learn More
Josh McDowellStructural Engineering
Principal
jmcdowell@mcknze.comJosh McDowell leads Mackenzie's structural engineering practice, and has over two decades of experience in the field. Josh oversees the structural...Learn More
Rich Mitchell- AIA
- LEED AP BD+C
- NCARB
- GGP
Architecture
Principal, Architect
rmitchell@mcknze.comRich Mitchell joined Mackenzie as a project architect in 1989. Rich takes a holistic approach to design, balancing client goals with stakeholder...Learn More
Wendell MuellerArchitecture
Associate Principal, Architect
wmueller@mcknze.comWendell Mueller has a diversity of experience, serving as project manager and project architect for retail, multifamily, commercial, high-tech,...Learn More
Tim SchweitzerStructural Engineering
Associate Principal, Director of Structural Engineering
tschweitzer@mcknze.comDuring his long tenure at Mackenzie, Tim Schweitzer has provided design for a variety of structures including the design of tilt panels, concrete...Learn More
Morgan TothInteriors
Associate Principal, Department Head - Interiors
mtoth@mcknze.comMorgan Toth brings exceptional abilities in communication, relationship building, and project management, and serves as the primary contact for...Learn More
Dietrich WielandArchitecture
President, Architect
dwieland@mcknze.comDietrich Wieland, Mackenzie’s President, brings a wide breadth of professional experience including mixed-use, urban redevelopment, commercial,...Learn More