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The City of Portland, Oregon

Sustainability at Work

Providing free tools and expertise to achieve your goals

Phone: 503-823-7037


Carollo Engineers, Inc.

Carollo logoAbout

Carollo is the largest firm in the United States dedicated solely to water related engineering - it's all we do.

Since 1933, this single-minded focus has allowed Carollo to make some unique commitments to both clients and staff. It has opened the door to the very best talent in the water industry, innovative water solutions, unparalleled client service, and above all, a collaborative and collegial working environment that makes it a great company to work with, and for.

Silver certified

  • Accounting Department is 100% Paperless.
  • Laptops and other portable devices are used rather than desktop computers.
  • Offers pre-tax transit passes to all employees.
  • Batteries and toner cartridges are always recycled.



707 SW Washington Street, Suite 500, Portland, OR 97205