Ranked by number of licensed professionals in Oregon and Southwest Washington
1 KPFF Consulting Engineers
OR and SW Wash. Licensed Professionals: 149
OR and SW Wash. employees: 210
City: Portland
Offices Worldwide: 24
Year established: 1960
2 AKS Engineering & Forestry
OR and SW Wash. Licensed Professionals: 139
OR and SW Wash. employees: 354
City: Tualatin
Offices Worldwide: 6
Year established: 1996
3 David Evans Enterprises
OR and SW Wash. Licensed Professionals: 135
OR and SW Wash. employees: 349
City: Portland
Offices Worldwide: 28
Year established: 1976
4 ZGF Architects
OR and SW Wash. Licensed Professionals: 120
OR and SW Wash. employees: 261
City: Portland
Offices Worldwide: 7
Year established: 1942
5 Mackenzie
OR and SW Wash. Licensed Professionals: 95
OR and SW Wash. employees: 175
City: Portland
Offices Worldwide: 3
Year established: 1960
6 AECOM Technical Services
OR and SW Wash. Licensed Professionals: 80
OR and SW Wash. employees: 84
City: Portland
Offices Worldwide: 364
Year established: 1990
7 Harper Houf Peterson Righellis
OR and SW Wash. Licensed Professionals: 79
OR and SW Wash. employees: 115
City: Portland
Offices Worldwide: 4
Year established: 1990
Tie 8 Parametrix
OR and SW Wash. Licensed Professionals: 60
OR and SW Wash. employees: 156
City: Portland
Offices Worldwide: 18
Year established: 1969
Tie 8 Otak
OR and SW Wash. Licensed Professionals: 60
OR and SW Wash. employees: 193
City: Portland
Offices Worldwide: 8
Year established: 1981
Tie 10 Mahlum
OR and SW Wash. Licensed Professionals: 45
OR and SW Wash. employees: 85
City: Portland
Offices Worldwide: 2
Year established: 1938
Tie 10 GBD Architects
OR and SW Wash. Licensed Professionals: 45
OR and SW Wash. employees: 67
City: Portland
Offices Worldwide: 1
Year established: 1969
12 Hennebery Eddy Architects
OR and SW Wash. Licensed Professionals: 42
OR and SW Wash. employees: 88
City: Portland
Offices Worldwide: 3
Year established: 1992
13 Scott | Edwards Architecture
OR and SW Wash. Licensed Professionals: 37
OR and SW Wash. employees: 90
City: Portland
Offices Worldwide: 1
Year established: 1998
14 Shannon & Wilson
OR and SW Wash. Licensed Professionals: 23
OR and SW Wash. employees: 36
City: Lake Oswego
Offices Worldwide: 14
Year established: 1954
15 Skylab Architecture
OR and SW Wash. Licensed Professionals: 22
OR and SW Wash. employees: 25
City: Portland
Offices Worldwide: 1
Year established: 1999
16 TVA Architects
OR and SW Wash. Licensed Professionals: 17
OR and SW Wash. employees: 33
City: Portland
Offices Worldwide: 1
Year established: 1984
17 Soderstrom Architects
OR and SW Wash. Licensed Professionals: 16
OR and SW Wash. employees: 42
City: Portland
Offices Worldwide: 1
Year established: 1984
Tie 18 3J Consulting
OR and SW Wash. Licensed Professionals: 15
OR and SW Wash. employees: 43
City: Beaverton
Offices Worldwide: 2
Year established: 2009
Tie 18 FFA Architecture and Interiors
OR and SW Wash. Licensed Professionals: 15
OR and SW Wash. employees: 28
City: Portland
Offices Worldwide: 1
Year established: 1956
20 PIVOT Architecture
OR and SW Wash. Licensed Professionals: 14
OR and SW Wash. employees: 29
City: Eugene
Offices Worldwide: 1
Year established: 1956
21 OH Planning & Design, Architecture
OR and SW Wash. Licensed Professionals: 12
OR and SW Wash. employees: 25
City: Portland
Offices Worldwide: 1
Year established: 2004
Tie 22 BBT Architects
OR and SW Wash. Licensed Professionals: 9
OR and SW Wash. employees: 17
City: Bend
Offices Worldwide: 1
Year established: 1975
Tie 22 SMG Engineers
OR and SW Wash. Licensed Professionals: 9
OR and SW Wash. employees: 31
City: Beaverton
Offices Worldwide: 2
Year established: 1971
Tie 22 Harris Group
OR and SW Wash. Licensed Professionals: 9
OR and SW Wash. employees: 24
City: Portland
Offices Worldwide: 7
Year established: 1975
25 Fluent Engineering
OR and SW Wash. Licensed Professionals: 6
OR and SW Wash. employees: 16
City: Salem
Offices Worldwide: 2
Year established: 2008
Disclaimer: This list is compiled based on responses to a survey. Firms are not included if they do not respond to the survey.
