• Pacific Seas Aquarium, Point Defiance Zoo & Aquarium. Photo courtesy of Sozinho Imagery.

  • The Kendeda Building for Innovative Sustainable Design. Photo: Jonathan Hillyer.

  • Portland International Airport, Terminal Expansion and Renovation. Image courtesy of ZGF Architects.

  • The world’s largest commercial Living Building, the Bullitt Center. Image courtesy of Nic Lehoux.

  • Nordic Heritage Museum. Image courtesy of Bruce Damonte.

  • Facebook's MPK20 building. Image courtesy of Jeremy Bitterman.

Leaders in sustainable engineering design

Our high-performing buildings work because our people listen—to our clients, to each other, and to the natural world around us.