Washington County, Oregon UTILITIES - PUBLIC Washington County, Oregon UTILITIES - PUBLIC Search | Advanced Search | New Members | Coupons and Discounts | All Categories Sort alphabetically by... Name City Northwest Natural _ 250 SW Taylor St.Portland, OR 97204 3943(503) 226-4211 Member Since: 1993 Learn More | Visit Site | Show on Map Jupiter Power _ 200 W Madison StreetSuite 1300Chicago, IL 60606 (512) 375-4052 Member Since: 2025 Learn More | Visit Site | Show on Map Tualatin Valley Water District _ 1850 SW 170th AvenueBeaverton, OR 97003 (503) 848-3000 Member Since: 2022 Learn More | Visit Site | Show on Map If your business isn't here, contact us today to get listed!