| KCKitzke Cellars | Richland | WA | Beverage and Tobacco Product Manufacturing312130 | 1-19 | ◐ LIKELY ACTIVE |
| KMK-l Mfg. Co., INC. | Spokane | WA | Apparel Manufacturing315210 | 100-499 | ◐ LIKELY ACTIVE |
| LCLa Conner Maritime Services | La Conner | WA | Transportation Equipment Manufacturing336612 | — | ◐ LIKELY ACTIVE |
| LCLanxess Corporation | Kalama | WA | Chemical Manufacturing325199 | 100-499 | ◐ LIKELY ACTIVE |
| LELenz Enterprises INC | Stanwood | WA | Chemical Manufacturing325314 | — | ◐ LIKELY ACTIVE |
| LBLindal Building Products | Burlington | WA | Wood Product Manufacturing321911 | — | ◐ LIKELY ACTIVE |
| LDLodgepole Distilling, LLC | Seattle | WA | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| LCLongdrop Cider, LLC | Cashmere | WA | Beverage and Tobacco Product Manufacturing312130 | 1-19 | ◐ LIKELY ACTIVE |
| LBLonghorn Barbecue Production Center | Spokane | WA | Food Manufacturing311612 | 20-99 | ◐ LIKELY ACTIVE |
| LCLongship Cellars | Richland | WA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| LDLower Duwamish Waterway | Seattle | WA | Primary Metal Manufacturing331111 | — | ◐ LIKELY ACTIVE |
| LGLower Granite Dam and Locks Usace | Pomeroy | WA | Machinery Manufacturing333611 | — | ◐ LIKELY ACTIVE |
| MCMac Chain Warehouse Addition | Woodland | WA | Fabricated Metal Product Manufacturing332618 | — | ◐ LIKELY ACTIVE |
| MIMachinists INC | Seattle | WA | Fabricated Metal Product Manufacturing332710 | 100-499 | ◐ LIKELY ACTIVE |
| MPMacro Plastics Washington | Union Gap | WA | Plastics and Rubber Products Manufacturing326199 | — | ◐ LIKELY ACTIVE |
| MWMajor Wire WA | Fife | WA | Fabricated Metal Product Manufacturing332618 | 20-99 | ◐ LIKELY ACTIVE |
| MLManke Lumber Company Inc. - Tacoma | Tacoma | WA | Wood Product Manufacturing321113 | 100-499 | ◐ LIKELY ACTIVE |
| MPMapsco Plant 2 | Seattle | WA | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
| MVMarket Vineyards | Richland | WA | Beverage and Tobacco Product Manufacturing312130 | 20-99 | ◐ LIKELY ACTIVE |
| MRMcs Recycle | Woodinville | WA | Wood Product Manufacturing321999 | — | ◐ LIKELY ACTIVE |
| MDMercer Distribution Services Fife | Fife | WA | Chemical Manufacturing325320 | — | ◐ LIKELY ACTIVE |
| MWMercer Wine Estates | Prosser | WA | Beverage and Tobacco Product Manufacturing312130 | 20-99 | ◐ LIKELY ACTIVE |
| MLMicrostar Laboratories INC | Redmond | WA | Computer and Electronic Product Manufacturing334111 | 1-19 | ◐ LIKELY ACTIVE |
| MSMidnite Solar | Arlington | WA | Electrical Equipment, Appliance & Component Manufacturing335999 | 20-99 | ◐ LIKELY ACTIVE |
| MVMilgard Vinyl Extrusion | Fife | WA | Plastics and Rubber Products Manufacturing326121 | 100-499 | ◐ LIKELY ACTIVE |
| MBMillennium Bulk Terminals Site | Longview | WA | Primary Metal Manufacturing331312 | — | ◐ LIKELY ACTIVE |
| MMM & M Bolt Company, L.l.c. | Pasco | WA | Miscellaneous Manufacturing339999 | — | ◐ LIKELY ACTIVE |
| MSMondo & Sons | Tukwila | WA | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| MFMosquito Fleet Winery | Belfair | WA | Beverage and Tobacco Product Manufacturing312130 | 1-19 | ◐ LIKELY ACTIVE |
| MFMoulton Falls Winery LLC | Yacolt | WA | Beverage and Tobacco Product Manufacturing312130 | 1-19 | ◐ LIKELY ACTIVE |
| NDNakanishi Dental Lab Inc | Bellevue | WA | Miscellaneous Manufacturing339116 | 20-99 | ◐ LIKELY ACTIVE |
| NBNarrows Brewing | Tacoma | WA | Beverage and Tobacco Product Manufacturing312130 | 1-19 | ◐ LIKELY ACTIVE |
| NFNeu Flessenow Cellars | Leavenworth | WA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| NBNiagara Bottling, LLC - Tacoma | Puyallup | WA | Beverage and Tobacco Product Manufacturing312112 | 100-499 | ◐ LIKELY ACTIVE |
| NGNic Global Manufacturing Solutions | Woodinville | WA | Fabricated Metal Product Manufacturing332322 | — | ◐ LIKELY ACTIVE |
| NSNorsk Strykr | Prosser | WA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| NCNorthwest Cellars | Kirkland | WA | Beverage and Tobacco Product Manufacturing312130 | 1-19 | ◐ LIKELY ACTIVE |
| NMNorthwest Machinery Sales & Service LLC | Snohomish | WA | Machinery Manufacturing333519 | 1-19 | ◐ LIKELY ACTIVE |
| OFOakville Forest Products INC | Oakville | WA | Wood Product Manufacturing321113 | — | ◐ LIKELY ACTIVE |
| OBOcean Beauty Seafoods INC | Monroe | WA | Food Manufacturing311710 | — | ◐ LIKELY ACTIVE |
| OSOcean Spray Markham | Aberdeen | WA | Food Manufacturing311421 | — | ◐ LIKELY ACTIVE |
| OLOld Log Cabin Distillery | Seattle | WA | Beverage and Tobacco Product Manufacturing312140 | 1-19 | ◐ LIKELY ACTIVE |
| OFOlsen Farms Meats | Chewelah | WA | Food Manufacturing311611 | 1-19 | ◐ LIKELY ACTIVE |
| OMOlympic Mountain Millwork | Shelton | WA | Wood Product Manufacturing321911 | 1-19 | ◐ LIKELY ACTIVE |
| OSOmni Studio, LLC | Addy | WA | Wood Product Manufacturing321215 | — | ◐ LIKELY ACTIVE |
| OTOne Tree Hard Cider LLC | Spokane Valley | WA | Beverage and Tobacco Product Manufacturing312130 | 20-99 | ◐ LIKELY ACTIVE |
| OIOrcas Island Distillery | Orcas | WA | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| OSOsp Sling, INC. | Sequim | WA | Machinery Manufacturing333923 | 20-99 | ◐ LIKELY ACTIVE |
| OEOSW Equipment | Snohomish | WA | Transportation Equipment Manufacturing336211 | 20-99 | ◐ LIKELY ACTIVE |
| OROutdoor Research, LLC | Seattle | WA | Apparel Manufacturing315210 | — | ◐ LIKELY ACTIVE |