| MBMarco Building | Seattle | WA | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| MFMarine Fluid Systems INC | Seattle | WA | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| MVMarine Vacuum Service, INC. | Seattle | WA | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| MHMars Hill Properties 50th LLC | Seattle | WA | Transportation Equipment Manufacturing336413 | — | ◇ UNVERIFIED |
| MSMasons Supply Company | Seattle | WA | Transportation Equipment Manufacturing336399 | — | ◇ UNVERIFIED |
| MMMastercraft Metal Finishing INC | Seattle | WA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| MTMce Technologies INC | Seattle | WA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| MDMercer Distribution Facility | Seattle | WA | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| NBNorth Boeing Field Georgetown Steamplant | Seattle | WA | Transportation Equipment Manufacturing336411 | — | ◇ UNVERIFIED |
| NSNorth Star Ice Equipment | Seattle | WA | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| NBNorthwest Building Tech | Seattle | WA | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| NCNorthwest Castings | Seattle | WA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| NMNw Market St Site | Seattle | WA | Fabricated Metal Product Manufacturing332321 | — | ◇ UNVERIFIED |
| OBOcean Beauty Seafoods-llc-ewing Street | Seattle | WA | Food Manufacturing311710 | — | ◇ UNVERIFIED |
| OFOcean Fresh Seafood M/v Ocean Fresh | Seattle | WA | Food Manufacturing311710 | — | ◇ UNVERIFIED |
| PIPacific Industrial Supply Director St | Seattle | WA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| POPacific Office Automation | Seattle | WA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| PRPacific Rendering CO INC | Seattle | WA | Food Manufacturing311613 | — | ◇ UNVERIFIED |
| PNPetermann Northwest | Seattle | WA | Transportation Equipment Manufacturing336211 | — | ◇ UNVERIFIED |
| PLPhenopath Laboratories | Seattle | WA | Paper Manufacturing322221 | — | ◇ UNVERIFIED |
| PIPioneer Industries Seattle | Seattle | WA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| PMPsf Mechanical INC | Seattle | WA | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| QFQual Fab INC | Seattle | WA | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| RBRainier Brewery | Seattle | WA | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| RTRepair Technology INC | Seattle | WA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| RPRudd Paint and Varnish Site | Seattle | WA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| SBSeattle Biodiesel LLC | Seattle | WA | Food Manufacturing311225 | — | ◇ UNVERIFIED |
| SBSeattle Bulk Shipping LLC | Seattle | WA | Food Manufacturing311211 | — | ◇ UNVERIFIED |
| SCSeattle Childrens Hospital Research Inst | Seattle | WA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| SCSeattle Collision Center | Seattle | WA | Furniture and Related Product Manufacturing337920 | — | ◇ UNVERIFIED |
| SPSeattle Port Fishermans Terminal | Seattle | WA | Transportation Equipment Manufacturing336612 | — | ◇ UNVERIFIED |
| SPSeattle Port Maritime Industrial Cent | Seattle | WA | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| SESeaview East Boatyard | Seattle | WA | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| SSSeven Seas Fishing CO | Seattle | WA | Transportation Equipment Manufacturing336612 | — | ◇ UNVERIFIED |
| SISkills INC Paint | Seattle | WA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| SESkyline Electric and Mfg CO INC | Seattle | WA | Electrical Equipment, Appliance & Component Manufacturing335999 | — | ◇ UNVERIFIED |
| SISnyder Industries INC | Seattle | WA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| SPSouth Park Marina | Seattle | WA | Transportation Equipment Manufacturing336612 | — | ◇ UNVERIFIED |
| SISpencer Industries INC | Seattle | WA | Machinery Manufacturing333995 | — | ◇ UNVERIFIED |
| SYStabbert Yacht and Ship LLC | Seattle | WA | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| SSStandard Steel Fabricating CO INC | Seattle | WA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| SSSummit Supply | Seattle | WA | Chemical Manufacturing325110 | — | ◇ UNVERIFIED |
| TSTrim Systems Site | Seattle | WA | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| TNTrue North Apartment Building | Seattle | WA | Computer and Electronic Product Manufacturing334511 | — | ◇ UNVERIFIED |
 Universal Printing | Seattle | WA | Printing and Related Support Activities323112 | — | ◇ UNVERIFIED |
| VNVaupell Northwest Molding | Seattle | WA | Plastics and Rubber Products Manufacturing326130 | — | ◇ UNVERIFIED |
| VMViox Mcdowell Site | Seattle | WA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| WGWescor Graphics CORP | Seattle | WA | Printing and Related Support Activities323120 | — | ◇ UNVERIFIED |
| WCWesmar Company Site | Seattle | WA | Chemical Manufacturing325612 | — | ◇ UNVERIFIED |
| WSWestern Steel Casting CO | Seattle | WA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
