Ranked by number of licensed professionals in Oregon and Southwest Washington
1. PAE
OR and SW Wash. Licensed Professionals: 213
OR and SW Wash. Employees: 280
City: Portland
Offices Worldwide: 7
Year Established: 1967
2. ZGF Architects
OR and SW Wash. Licensed Professionals: 146
OR and SW Wash. Employees: 248
City: Portland
Offices Worldwide: 7
Year Established: 1942
3. David Evans and Associates
OR and SW Wash. Licensed Professionals: 133
OR and SW Wash. Employees: 333
City: Portland
Offices Worldwide: 30
Year Established: 1976
4. AKS Engineering & Forestry
OR and SW Wash. Licensed Professionals: 128
OR and SW Wash. Employees: 359
City: Tualatin
Offices Worldwide: 7
Year Established: 1996
5. Glumac
OR and SW Wash. Licensed Professionals: 91
OR and SW Wash. Employees: 84
City: Portland
Offices Worldwide: 12
Year Established: 1971
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
TIE 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 7. KPFF Consulting Engineers
OR and SW Wash. Licensed Professionals: 79
OR and SW Wash. Employees: 203
City: Portland
Offices Worldwide: 26
Year Established: 1960
9. LRS Architects
OR and SW Wash. Licensed Professionals: 67
OR and SW Wash. Employees: 135
City: Portland
Offices Worldwide: 2
Year Established: 1976
10. Parametrix
OR and SW Wash. Licensed Professionals: 65
OR and SW Wash. Employees: 180
City: Portland
Offices Worldwide: 20
Year Established: 1969
11. Hennebery Eddy Architects
OR and SW Wash. Licensed Professionals: 53
OR and SW Wash. Employees: 96
City: Portland
Offices Worldwide: 3
Year Established: 1992
TIE 12. Ankrom Moisan Architects
OR and SW Wash. Licensed Professionals: 50
OR and SW Wash. Employees: 91
City: Portland
Offices Worldwide: 3
Year Established: 1983
TIE 12. GBD Architects
OR and SW Wash. Licensed Professionals: 50
OR and SW Wash. Employees: 55
City: Portland
Offices Worldwide: 2
Year Established: 1969
14. Otak
OR and SW Wash. Licensed Professionals: 46
OR and SW Wash. Employees: 186
City: Portland
Offices Worldwide: 8
Year Established: 1981
15. BORA Architects
OR and SW Wash. Licensed Professionals: 38
OR and SW Wash. Employees: 73
City: Portland
Offices Worldwide: 1
Year Established: 1958
16. Skylab Architecture
OR and SW Wash. Licensed Professionals: 34
OR and SW Wash. Employees: 43
City: Portland
Offices Worldwide: 1
Year Established: 1999
17. SRG Partnership + Cannon Design
OR and SW Wash. Licensed Professionals: 33
OR and SW Wash. Employees: 60
City: Portland
Offices Worldwide: 2
Year Established: 1972
18. SERA Architects
OR and SW Wash. Licensed Professionals: 31
OR and SW Wash. Employees: 74
City: Portland
Offices Worldwide: 2
Year Established: 1968
TIE 19. IDC Architects
OR and SW Wash. Licensed Professionals: 30
OR and SW Wash. Employees: 550
City: Portland
Offices Worldwide: 174
Year Established: 1946
TIE 19. Ziba Design
OR and SW Wash. Licensed Professionals: 30
OR and SW Wash. Employees: 40
City: Portland
Offices Worldwide: 3
Year Established: 1984
21. Interface Engineering
OR and SW Wash. Licensed Professionals: 24
OR and SW Wash. Employees: 121
City: Portland
Offices Worldwide: 7
Year Established: 1969
22. Shannon & Wilson
OR and SW Wash. Licensed Professionals: 23
OR and SW Wash. Employees: 36
City: Lake Oswego
Offices Worldwide: 14
Year Established: 1954
23. Hacker
OR and SW Wash. Licensed Professionals: 21
OR and SW Wash. Employees: 40
City: Portland
Offices Worldwide: 1
Year Established: 1983
24. Carleton Hart Architecture
OR and SW Wash. Licensed Professionals: 19
OR and SW Wash. Employees: 27
City: Portland
Offices Worldwide: 1
Year Established: 1994
25. FFA Architecture & Interiors
OR and SW Wash. Licensed Professionals: 18
OR and SW Wash. Employees: 22
City: Portland
Offices Worldwide: 1
Year Established: 1956
TIE 26. Arcadis
OR and SW Wash. Licensed Professionals: 17
OR and SW Wash. Employees: 37
City: Portland
Offices Worldwide: 67
Year Established: 1986
TIE 26. TVA Architects
OR and SW Wash. Licensed Professionals: 17
OR and SW Wash. Employees: 25
City: Portland
Offices Worldwide: 1
Year Established: 1984
28. 3J Consulting
OR and SW Wash. Licensed Professionals: 15
OR and SW Wash. Employees: 44
City: Beaverton
Offices Worldwide: 2
Year Established: 2009
29. Soderstrom Architects
OR and SW Wash. Licensed Professionals: 14
OR and SW Wash. Employees: 38
City: Portland
Offices Worldwide: 1
Year Established: 1984
30. PACE Engineers
OR and SW Wash. Licensed Professionals: 13
OR and SW Wash. Employees: 31
City: Lake Oswego
Offices Worldwide: 3
Year Established: 1992
TIE 31. DCI Engineers
OR and SW Wash. Licensed Professionals: 12
OR and SW Wash. Employees: 13
City: Portland
Offices Worldwide: 9
Year Established: 1988
TIE 31. Holst Architecture
OR and SW Wash. Licensed Professionals: 12
OR and SW Wash. Employees: 38
City: Portland
Offices Worldwide: 1
Year Established: 1992
TIE 31. SMG Engineers
OR and SW Wash. Licensed Professionals: 12
OR and SW Wash. Employees: 31
City: Beaverton
Offices Worldwide: 3
Year Established: 1971
34. Oh Planning + Design, Architecture
OR and SW Wash. Licensed Professionals: 11
OR and SW Wash. Employees: 26
City: Portland
Offices Worldwide: 1
Year Established: 2004
TIE 35. Emerick Architects
OR and SW Wash. Licensed Professionals: 10
OR and SW Wash. Employees: 15
City: Portland
Offices Worldwide: 1
Year Established: 1999
TIE 35. PIVOT Architecture
OR and SW Wash. Licensed Professionals: 10
OR and SW Wash. Employees: 20
City: Eugene
Offices Worldwide: 1
Year Established: 1956
TIE 37. BBT Architects
OR and SW Wash. Licensed Professionals: 9
OR and SW Wash. Employees: 17
City: Bend
Offices Worldwide: 1
Year Established: 1975
TIE 37. Harris Group
OR and SW Wash. Licensed Professionals: 9
OR and SW Wash. Employees: 24
City: Portland
Offices Worldwide: 7
Year Established: 1975
TIE 39. Westlake Consultants
OR and SW Wash. Licensed Professionals: 8
OR and SW Wash. Employees: 50
City: Tigard
Offices Worldwide: 1
Year Established: 1983
TIE 39. R&W Engineering
OR and SW Wash. Licensed Professionals: 8
OR and SW Wash. Employees: 29
City: Beaverton
Offices Worldwide: 1
Year Established: 1978
TIE 41. Burns & McDonnell
OR and SW Wash. Licensed Professionals: 6
OR and SW Wash. Employees: 64
City: Portland
Offices Worldwide: 75
Year Established: 1898
TIE 41. Waterleaf Architecture, Interiors & Planning
OR and SW Wash. Licensed Professionals: 6
OR and SW Wash. Employees: 8
City: Portland
Offices Worldwide: 1
Year Established: 1952
TIE 43. Elcon Associates
OR and SW Wash. Licensed Professionals: 5
OR and SW Wash. Employees: 16
City: Beaverton
Offices Worldwide: 3
Year Established: 1975
TIE 43. ORW Architecture
OR and SW Wash. Licensed Professionals: 5
OR and SW Wash. Employees: 17
City: Medford
Offices Worldwide: 2
Year Established: 1968
TIE 43. Steele Associates Architects
OR and SW Wash. Licensed Professionals: 5
OR and SW Wash. Employees: 20
City: Bend
Offices Worldwide: 1
Year Established: 1996
46. Fluent Engineering
OR and SW Wash. Licensed Professionals: 4
OR and SW Wash. Employees: 12
City: Salem
Offices Worldwide: 2
Year Established: 2008
TIE 47. JJC Engineering
OR and SW Wash. Licensed Professionals: 1
OR and SW Wash. Employees: 1
City: Bend
Offices Worldwide: 1
Year Established: 2005
TIE 47. SOLARC Architecture
OR and SW Wash. Licensed Professionals: 1
OR and SW Wash. Employees: 2
City: Portland
Offices Worldwide: 1
Year Established: 2001
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