Washington County, Oregon AGGREGRATE Washington County, Oregon AGGREGRATE Search | Advanced Search | New Members | Coupons and Discounts | All Categories Sort alphabetically by... Name City CalPortland Company _ 703 Broadway StSuite 510Vancouver, WA 98660 (503) 535-7771 Member Since: 2009 Learn More | Visit Site | Show on Map Knife River Corporation – Northwest _ 21880 SW Farmington Rd.Beaverton, OR 97007 5470(503) 944-3500 Member Since: 1995 Learn More | Visit Site | Show on Map If your business isn't here, contact us today to get listed!