| CIColville Indian Precision Pine | Omak | WA | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| CPColville Post and Poles INC | Colville | WA | Wood Product Manufacturing321114 | — | ◇ UNVERIFIED |
| CTComet Trailer Site | Selah | WA | Transportation Equipment Manufacturing336212 | — | ◇ UNVERIFIED |
| CACommercial Aircraft Interiors | Burlington | WA | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| CBCommercial Building | Marysville | WA | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| CWCommercial Welding and Fabrication INC | Seattle | WA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CNConcrete Norwest Getchell Pit | Lake Stevens | WA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| CIConrad Industries | Chehalis | WA | Petroleum and Coal Products Manufacturing324199 | — | ◇ UNVERIFIED |
| CPContainer Properties LLC | Tukwila | WA | Chemical Manufacturing325000 | — | ◇ UNVERIFIED |
| CSConvoy Supply | Kent | WA | Plastics and Rubber Products Manufacturing326140 | — | ◇ UNVERIFIED |
| CSConvoy Supply INC 204th St Sw | Lynnwood | WA | Furniture and Related Product Manufacturing337211 | — | ◇ UNVERIFIED |
| CCCook Composites and Polymers CO | Arlington | WA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| CACore and Main LP | Renton | WA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| COCostco Optical Lab 190 | Tukwila | WA | Machinery Manufacturing333314 | — | ◇ UNVERIFIED |
| CDCoulee Dam Concrete / Elmer City Concrete | Coulee Dam | WA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CDCpm Development Corporation Quincy | Quincy | WA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CBCreston Biodiesel Refinery | Creston | WA | Petroleum and Coal Products Manufacturing324110 | — | ◇ UNVERIFIED |
| CPCrop Production Services Moses Lake | Moses Lake | WA | Chemical Manufacturing325311 | — | ◇ UNVERIFIED |
| CCCrown Cork and Seal CO INC Plant 14 | Tukwila | WA | Fabricated Metal Product Manufacturing332431 | — | ◇ UNVERIFIED |
| CPCrown Plating INC | Vancouver | WA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| CSCubesmart Self Storage | Bothell | WA | Computer and Electronic Product Manufacturing334412 | — | ◇ UNVERIFIED |
| CACustom Array INC | Bothell | WA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| CCCustom Care Cleaners | Vancouver | WA | Machinery Manufacturing333312 | — | ◇ UNVERIFIED |
| CSCustomer Support Svcs and Plastics | Everett | WA | Computer and Electronic Product Manufacturing334515 | — | ◇ UNVERIFIED |
| CPCxt-precast Plant | Spokane | WA | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| CDCylinder Depot Non Notifier | Centralia | WA | Printing and Related Support Activities323120 | — | ◇ UNVERIFIED |
| DMDagmars Marina | Everett | WA | Transportation Equipment Manufacturing336612 | — | ◇ UNVERIFIED |
| DADamar Aerosystems | Monroe | WA | Primary Metal Manufacturing331316 | — | ◇ UNVERIFIED |
| DCDapaul Chip | Olympia | WA | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| DIDarling International | Tacoma | WA | Food Manufacturing311613 | — | ◇ UNVERIFIED |
| DCDart Container CORP | Tumwater | WA | Plastics and Rubber Products Manufacturing326140 | — | ◇ UNVERIFIED |
| DIData I O Corporation | Redmond | WA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| DUDecco US Postharvest | East Wenatchee | WA | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| DMDevries Moving-packing-storage | Spokane | WA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| DFDiamond Fiberglass Northwest | Burlington | WA | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| DPDolco Packaging CORP | Wenatchee | WA | Plastics and Rubber Products Manufacturing326140 | — | ◇ UNVERIFIED |
| DODominion Organics | Ferndale | WA | Chemical Manufacturing325311 | — | ◇ UNVERIFIED |
| DFDrr Fruit Products | Sunnyside | WA | Food Manufacturing311411 | — | ◇ UNVERIFIED |
| DEDunollie Enterprises LLC Yakima | Yakima | WA | Wood Product Manufacturing321212 | — | ◇ UNVERIFIED |
| DCDupont Corporate Park | Dupont | WA | Computer and Electronic Product Manufacturing334111 | — | ◇ UNVERIFIED |
| DSDuwamish Shipyard INC | Seattle | WA | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| EHEagle Harbor Wyckoff | Bainbridge Island | WA | Wood Product Manufacturing321114 | — | ◇ UNVERIFIED |
| EPEbj Partners | Woodinville | WA | Computer and Electronic Product Manufacturing334412 | — | ◇ UNVERIFIED |
| EEEcolab Equipment Care | Kirkland | WA | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| EBEden Bioscience | Bothell | WA | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
| EGEdgemont Group | Wenatchee | WA | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| ECEdman CO Side 1 Marine View Dr | Tacoma | WA | Wood Product Manufacturing321912 | — | ◇ UNVERIFIED |
| EWEdm Wire-cut Northwest | Carnation | WA | Plastics and Rubber Products Manufacturing326299 | — | ◇ UNVERIFIED |
| ESEldorado Stone Royal City Facility | Royal City | WA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| EIElectrofinishing INC. | Kent | WA | Printing and Related Support Activities323120 | — | ◇ UNVERIFIED |
