Over 30 firms have responded to ENR Northwest’s annual Top Design Firms survey. This regional survey,which you can find here, has an extended deadline of March 29, so there is still time for any design firms working in Alaska, Oregon and Washington to take part. The resulting California Top Design Firms ranking will appear in the May print edition of ENR California and Northwest. To participate in other regional Top Design Firms surveys,readers can click here.

看看last year’s ENR Northwest Top Design Firms ranking,click here.

Below you’ll find our preview of this year's respondents to date. An important note: Because of space limitations for the print edition, it’s possible that firms listed here may not be included in the print ranking as a result of their revenue totals.

  • Arcadis North America
  • Arup
  • Atwell, LLC
  • Burns & McDonnell
  • Carollo Engineers, Inc.
  • Cushing Terrell (formerly CTA Architects Engineers)
  • David Evans Enterprises, Inc.
  • DCI Engineers
  • Dennis Group
  • DLR Group
  • Electrical Consultants, Inc.
  • Gensler
  • HNTB Corporation
  • IMEG Corp.
  • Kennedy/Jenks Consultants, Inc.
  • Kleinfelder
  • Michael Baker International
  • Mott MacDonald
  • Otak, Inc.
  • Parametrix
  • Parsons Corporation
  • R&M Consultants, Inc.
  • Salas O'Brien
  • Solomon Cordwell Buenz (SCB)
  • Stanley Consultants
  • Stantec
  • SWCA Environmental Consultants
  • Wiss, Janney, Elstner Associates
  • WSP USA
  • ZGF Architects LLP