| KAKaiser Aluminum and Chemical CO | Richland | WA | Primary Metal Manufacturing331316 | — | ◐ LIKELY ACTIVE |
Kaiser Aluminum Fabricated Products | Spokane | WA | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
| KTKey Technology | Walla Walla | WA | Machinery Manufacturing333241 | 100-499 | ◐ LIKELY ACTIVE |
| KVKiona Vineyards Winery | Benton City | WA | Beverage and Tobacco Product Manufacturing312130 | 20-99 | ◐ LIKELY ACTIVE |
| KLKwik Lok CORP | Yakima | WA | Plastics and Rubber Products Manufacturing326199 | 100-499 | ◐ LIKELY ACTIVE |
| KIKyocera International INC | Vancouver | WA | Nonmetallic Mineral Product Manufacturing327110 | 100-499 | ◐ LIKELY ACTIVE |
| LCLafarge Cement CO - Seattle Facility | Seattle | WA | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| LTLinear Technology CORP | Camas | WA | Computer and Electronic Product Manufacturing334413 | — | ◐ LIKELY ACTIVE |
| LDLynden Door | Lynden | WA | Wood Product Manufacturing321911 | 500+ | ◐ LIKELY ACTIVE |
| LILynden Ice Company, L.l.c. | Lynden | WA | Beverage and Tobacco Product Manufacturing312113 | 1-19 | ◐ LIKELY ACTIVE |
| MMMadlyn Metal Fab LLC | Washougal | WA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| MLManke Lumber / Superior Wood Treating | Sumner | WA | Wood Product Manufacturing321113 | — | ◐ LIKELY ACTIVE |
| MCMcfarland Cascade Pole and Lumber CO | Tacoma | WA | Wood Product Manufacturing321113 | — | ◐ LIKELY ACTIVE |
| MRMetal Rollforming Systems | Spokane | WA | Machinery Manufacturing333519 | 20-99 | ◐ LIKELY ACTIVE |
| MMModutech Marine INC | Tacoma | WA | Transportation Equipment Manufacturing336612 | 20-99 | ◐ LIKELY ACTIVE |
| MMMonroe Machined Products, INC. | Seatac | WA | Chemical Manufacturing325181 | 20-99 | ◐ LIKELY ACTIVE |
| MBMt Baker Products INC | Bellingham | WA | Wood Product Manufacturing321211 | 100-499 | ◐ LIKELY ACTIVE |
| NBNaval Base Kitsap at Bangor | Silverdale | WA | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| NUNestli USA - Foodservice Division Inc., Othello | Othello | WA | Food Manufacturing311411 | — | ◐ LIKELY ACTIVE |
| NCNoel Canning Plant | Yakima | WA | Beverage and Tobacco Product Manufacturing312111 | — | ◐ LIKELY ACTIVE |
| NSNorth Star Casteel Products | Seattle | WA | Primary Metal Manufacturing331513 | 20-99 | ◐ LIKELY ACTIVE |
| NGNorthwest Granite Everett Site | Everett | WA | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| NPNorthwest Paper Box Mfrs. Inc., Camas | Camas | WA | Paper Manufacturing322211 | 20-99 | ◐ LIKELY ACTIVE |
| NNouryon | Moses Lake | WA | Chemical Manufacturing325180 | 20-99 | ◐ LIKELY ACTIVE |
| NSNucor Steel Seattle INC | Seattle | WA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| OGOcean Gold Seafoods, INC | Westport | WA | Food Manufacturing311710 | — | ◐ LIKELY ACTIVE |
| OIOnamac Industries | Everett | WA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| PPPac Paper INC | Vancouver | WA | Paper Manufacturing322220 | 100-499 | ◐ LIKELY ACTIVE |
| PSPaul Schurman Machine, INC | Ridgefield | WA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| PTPort Townsend Paper Mill | Port Townsend | WA | Paper Manufacturing322110 | — | ◐ LIKELY ACTIVE |
| PTPort Townsend Shipwrights | Port Townsend | WA | Transportation Equipment Manufacturing336612 | 20-99 | ◐ LIKELY ACTIVE |
| PCPowder Coating Systems INC | Tacoma | WA | Fabricated Metal Product Manufacturing332812 | 20-99 | ◐ LIKELY ACTIVE |
| PSPraxair Specialty Ceramics | Woodinville | WA | Chemical Manufacturing325180 | — | ◐ LIKELY ACTIVE |
| PHProcess Heating Company, INC. | Seattle | WA | Machinery Manufacturing333414 | 1-19 | ◐ LIKELY ACTIVE |
| PCProtective Coatings INC | Kent | WA | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
Pss Seal, LLC | Lynnwood | WA | Miscellaneous Manufacturing339991 | — | ◐ LIKELY ACTIVE |
| QSQuikrete - Seattle, Wa Plant | Tacoma | WA | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| RPRainier Plywood | Tacoma | WA | Paper Manufacturing322220 | — | ◐ LIKELY ACTIVE |
| RSRec Solar Grade Silicon | Moses Lake | WA | Nonmetallic Mineral Product Manufacturing327992 | 100-499 | ◐ LIKELY ACTIVE |
Reflections of Service LLC | Oak Harbor | WA | Wood Product Manufacturing321999 | — | ◐ LIKELY ACTIVE |
| RPReischling Press Inc - SEA | Tukwila | WA | Printing and Related Support Activities323117 | 20-99 | ◐ LIKELY ACTIVE |
| SMSage Manufacturing | Bainbridge Island | WA | Miscellaneous Manufacturing339920 | 100-499 | ◐ LIKELY ACTIVE |
| SRScougal Rubber CORP | Seattle | WA | Plastics and Rubber Products Manufacturing326291 | 20-99 | ◐ LIKELY ACTIVE |
| SSSeacast Seattle | Seattle | WA | Primary Metal Manufacturing331512 | — | ◐ LIKELY ACTIVE |
| SLSeafreeze LTD Terminal 115 | Seattle | WA | Food Manufacturing311712 | — | ◐ LIKELY ACTIVE |
Seaton Engineering CORP | Loon Lake | WA | Transportation Equipment Manufacturing336413 | 1-19 | ◐ LIKELY ACTIVE |
| SDShultz Distributing | Seattle | WA | Electrical Equipment, Appliance & Component Manufacturing335110 | — | ◐ LIKELY ACTIVE |
| SPSierra Pacific | Aberdeen | WA | Wood Product Manufacturing321113 | — | ◐ LIKELY ACTIVE |
| SFSilvastar Forest Products | Bellingham | WA | Wood Product Manufacturing321912 | 100-499 | ◐ LIKELY ACTIVE |
| SDSimpson Door Company (MCD) | Mccleary | WA | Wood Product Manufacturing321911 | 100-499 | ◐ LIKELY ACTIVE |