| TITidewater Industrial Center | Vancouver | WA | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| TTTilted Tree Hard Cider Co. | Ellensburg | WA | Beverage and Tobacco Product Manufacturing312130 | 1-19 | ◐ LIKELY ACTIVE |
| TWTomcat's Welding & Fabrication, LLC | Moses Lake | WA | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| TCTrailbreaker Cider | Liberty Lake | WA | Beverage and Tobacco Product Manufacturing312130 | 1-19 | ◐ LIKELY ACTIVE |
| TCTransition Composites Manufacturing, INC | Ferndale | WA | Plastics and Rubber Products Manufacturing326130 | — | ◐ LIKELY ACTIVE |
| TITravis Industries | Mukilteo | WA | Machinery Manufacturing333414 | — | ◐ LIKELY ACTIVE |
| TCTreveri Cellars | Wapato | WA | Beverage and Tobacco Product Manufacturing312130 | 100-499 | ◐ LIKELY ACTIVE |
| TSTrident Seafoods CORP Seattle | Seattle | WA | Food Manufacturing311712 | — | ◐ LIKELY ACTIVE |
| TSTrident Seafoods- Everett | Everett | WA | Food Manufacturing311710 | 100-499 | ◐ LIKELY ACTIVE |
| TITriumph Integrated Systems | Redmond | WA | Transportation Equipment Manufacturing336413 | 20-99 | ◐ LIKELY ACTIVE |
| TSTucci & Sons Mcchord Plant | Tacoma | WA | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| UWUFP Washington, LLC | Yakima | WA | Wood Product Manufacturing321213 | 20-99 | ◐ LIKELY ACTIVE |
| UMUnited Marine Shipbuilding | Seattle | WA | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| UDUS Doe Hanford Ust Site | Richland | WA | Primary Metal Manufacturing331316 | — | ◐ LIKELY ACTIVE |
| UNUS Navy Keyport Naval Undersea Warfare Center Div | Keyport | WA | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| UOUS Oil and Refining CO Marine Terminal | Tacoma | WA | Petroleum and Coal Products Manufacturing324110 | — | ◐ LIKELY ACTIVE |
| VDVan Dam Welding, INC. | Buckley | WA | Fabricated Metal Product Manufacturing332312 | 1-19 | ◐ LIKELY ACTIVE |
| VCVashon Ciderworks | Vashon | WA | Beverage and Tobacco Product Manufacturing312130 | 1-19 | ◐ LIKELY ACTIVE |
| VCVaughan CO INC | Montesano | WA | Machinery Manufacturing333111 | — | ◐ LIKELY ACTIVE |
| WMWa317935962 - Morrison Lane LLC | Walla Walla | WA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| WIWa317938808 - I P Callison & Sons INC | Lacey | WA | Food Manufacturing311942 | — | ◐ LIKELY ACTIVE |
| WEWa317940135 - Empire Packing Company LLP | Olympia | WA | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| WMWal Mart 5273 | Sequim | WA | Plastics and Rubber Products Manufacturing326199 | — | ◐ LIKELY ACTIVE |
| WCWashington Creek Distillery LLC | Woodinville | WA | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| WFWater From Wine | Paterson | WA | Beverage and Tobacco Product Manufacturing312130 | 1-19 | ◐ LIKELY ACTIVE |
| WWWa Wsu Vancouver Branch Campus | Vancouver | WA | Wood Product Manufacturing321999 | — | ◐ LIKELY ACTIVE |
| WLWayron LLC | Longview | WA | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
| WCWest Coast Wire Rope & Rigging, INC. | Seattle | WA | Fabricated Metal Product Manufacturing332618 | — | ◐ LIKELY ACTIVE |
| WSWestern States Steel & Fab INC | Spokane | WA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| WMWestman Marine INC | Blaine | WA | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| WPWestmark Products | Tacoma | WA | Furniture and Related Product Manufacturing337127 | — | ◐ LIKELY ACTIVE |
| WWestport | Westport | WA | Food Manufacturing311710 | 100-499 | ◐ LIKELY ACTIVE |
| WWWestport Winery | Aberdeen | WA | Beverage and Tobacco Product Manufacturing312130 | 20-99 | ◐ LIKELY ACTIVE |
| WSWest Seattle Winery | Manson | WA | Beverage and Tobacco Product Manufacturing312130 | 1-19 | ◐ LIKELY ACTIVE |
| WCWeyerhaeuser CO Box Plant | Olympia | WA | Paper Manufacturing322211 | — | ◐ LIKELY ACTIVE |
| WIWhidbey Island Distillery | Langley | WA | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| WMWild Man Brewing Company, LLC | Raymond | WA | Beverage and Tobacco Product Manufacturing312130 | 1-19 | ◐ LIKELY ACTIVE |
| WCWillow Crest Winery | Prosser | WA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| WCWit Cellars | Prosser | WA | Beverage and Tobacco Product Manufacturing312130 | 1-19 | ◐ LIKELY ACTIVE |
| WAWoodworth and Company INC Sumner | Sumner | WA | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| WIWorkskiff, INC. | Sedro Woolley | WA | Transportation Equipment Manufacturing336612 | 1-19 | ◐ LIKELY ACTIVE |
| WVWt Vintners LLC | Woodinville | WA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| WLWylie-Young L.L.C. | Walla Walla | WA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| XIXdm Industries LLC | Port Ludlow | WA | Fabricated Metal Product Manufacturing332710 | 1-19 | ◐ LIKELY ACTIVE |
| 4L405 Labs LLC Tacoma | Tacoma | WA | Food Manufacturing311942 | 1-19 | ◐ LIKELY ACTIVE |
| ACAffordable Custom Cabinets | Otis Orchards | WA | Wood Product Manufacturing321999 | — | ◐ LIKELY ACTIVE |
| AAAka Airway Pit | Airway Heights | WA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| ARAmerican Rock Products Hanford | Richland | WA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| ACAngeles Composite Technologies INC | Port Angeles | WA | Transportation Equipment Manufacturing336411 | — | ◐ LIKELY ACTIVE |
| APApplied Plant Science | Woodland | WA | Chemical Manufacturing325314 | — | ◐ LIKELY ACTIVE |