| AArtech | Renton | — | ◇ UNVERIFIED |
| ASAscensus Specialties LLC | Elma | — | ◇ UNVERIFIED |
| AAAudacious AF Inc | Olympia | — | ◇ UNVERIFIED |
| BSBellingham Sunset Chevron | Bellingham | — | ◇ UNVERIFIED |
| BMBenjamin Moore & CO | Tumwater | — | ◇ UNVERIFIED |
| BGBig Gray Building LLC | Seattle | — | ◇ UNVERIFIED |
| BSBiocontrol Systems INC | Bellevue | — | ◇ UNVERIFIED |
| BMBiopol Mica | Mica | — | ◇ UNVERIFIED |
| CHCharles H Lilly CO | Seattle | — | ◇ UNVERIFIED |
| CWChemco Water Technology Site | Vancouver | — | ◇ UNVERIFIED |
| CSChemstation Seattle | Auburn | — | ◇ UNVERIFIED |
| CSChemstation Seattle LLC | Seattle | — | ◇ UNVERIFIED |
| CSChemtrade Solutions Site | Kennewick | — | ◇ UNVERIFIED |
| CSComposite Solutions CORP Sumner | Sumner | — | ◇ UNVERIFIED |
| CACourtaulds Aerospace Site | Kirkland | — | ◇ UNVERIFIED |
| CPCrop Production Services INC Tippett | Pasco | — | ◇ UNVERIFIED |
 Degesch America INC. | Tacoma | — | ◇ UNVERIFIED |
| DIDiversey INC Bunzl | Liberty Lake | — | ◇ UNVERIFIED |
| DCDouglas CO Pud Lincoln Rock Substation | East Wenatchee | — | ◇ UNVERIFIED |
| DWDP West LLC | Enumclaw | — | ◇ UNVERIFIED |
| ELEbbe LLC | Spokane Valley | — | ◇ UNVERIFIED |
| EEEco Enterprises | Seattle | — | ◇ UNVERIFIED |
| EMElement Materials Technology | Bothell | — | ◇ UNVERIFIED |
| ELEnfanos, LLC | Seattle | — | ◇ UNVERIFIED |
| ELEssex Laboratories LLC | Chehalis | — | ◇ UNVERIFIED |
| FFormula | Seattle | — | ◇ UNVERIFIED |
| GSGenetic Systems CORP Elliott | Seattle | — | ◇ UNVERIFIED |
| GWGmi Waste Technologies | Lakewood | — | ◇ UNVERIFIED |
| GDGold Dogs | Seattle | — | ◇ UNVERIFIED |
| HIHalosource INC | Bothell | — | ◇ UNVERIFIED |
| HIHasa INC | Longview | — | ◇ UNVERIFIED |
| INI-5 North On-ramp at Exit 27 | Kalama | — | ◇ UNVERIFIED |
| IEInland Environmental | Pasco | — | ◇ UNVERIFIED |
| JPJ Pod Just Evotec Biologics | Redmond | — | ◇ UNVERIFIED |
| JFJust for Fun Site | Vancouver | — | ◇ UNVERIFIED |
| KLKonzine llc DBA Raw Chemistry | Vancouver | — | ◇ UNVERIFIED |
| LNLazarus Naturals Seattle | Seattle | — | ◇ UNVERIFIED |
| LCLenroc CO | Ephrata | — | ◇ UNVERIFIED |
| LLLife Line Pet Nutrition, Inc. | Gig Harbor | — | ◇ UNVERIFIED |
| LLLikku LLC Spokane Valley | Spokane Valley | — | ◇ UNVERIFIED |
| MPMacmillan Piper | Tacoma | — | ◇ UNVERIFIED |
| MBMaster Builders Solutions Admixtures US LLC | Kent | — | ◇ UNVERIFIED |
| MAMatheson - Anacortes Hyco | Anacortes | — | ◇ UNVERIFIED |
| MAMatheson - Anacortes Hydrogen Plant | Anacortes | — | ◇ UNVERIFIED |
| MMdrna | Bothell | — | ◇ UNVERIFIED |
| MTMediquest Therapeutics INC Bothell | Bothell | — | ◇ UNVERIFIED |
| MMMeeco Manufacturing Company, Inc. | Seattle | — | ◇ UNVERIFIED |
| MIMetagenics INC Gig Harbor | Gig Harbor | — | ◇ UNVERIFIED |
| MMitags-pmi | Seattle | — | ◇ UNVERIFIED |
| MAModern Ag Products LLC | Pasco | — | ◇ UNVERIFIED |
