| SSSmartPlug Systems, LLC | Seattle | — | ◇ UNVERIFIED |
| SSSouth Sound Screen & Mobile Home Supply | Roy | — | ◇ UNVERIFIED |
| SSSpecialty Steel Fabricators | Olympia | — | ◇ UNVERIFIED |
| SSSpider Staging CORP | Seattle | — | ◇ UNVERIFIED |
 Sportworks Global LLC | Mukilteo | — | ◇ UNVERIFIED |
| SCStainless Cable & Railing, Inc | Washougal | — | ◇ UNVERIFIED |
| SISteeler INC | Seattle | — | ◇ UNVERIFIED |
| SLSteel Leaf Designs, LLC | Vancouver | — | ◇ UNVERIFIED |
| SFSt Fabrication | Orting | — | ◇ UNVERIFIED |
| SStucke | Kent | — | ◇ UNVERIFIED |
| SSunsteel,llc | Sunnyside | — | ◇ UNVERIFIED |
| SSupergraphics | Everett | — | ◇ UNVERIFIED |
| TITacoma Iron Work | Spanaway | — | ◇ UNVERIFIED |
| TMTacoma Metals Site | Tacoma | — | ◇ UNVERIFIED |
| TMTalbert Mobile Eco Blasting LLC | Bellingham | — | ◇ UNVERIFIED |
| TCTaylord Containers | Spokane Valley | — | ◇ UNVERIFIED |
| TSTemtco Steel Div Taylor Group | Tacoma | — | ◇ UNVERIFIED |
| TITerrene INC. | Mukilteo | — | ◇ UNVERIFIED |
| TTThermo Tech | Monroe | — | ◇ UNVERIFIED |
| TMThomas Machine & Foundry INC | Marysville | — | ◇ UNVERIFIED |
| TITopper Industries INC | Chelan | — | ◇ UNVERIFIED |
| TSTotem Steel INC Woodinville | Woodinville | — | ◇ UNVERIFIED |
| TCTri-city Crankshaft LLC | Pasco | — | ◇ UNVERIFIED |
| TCTri City Fabricating INC | Kennewick | — | ◇ UNVERIFIED |
| TTTriple T Holdings, LLC | Bellingham | — | ◇ UNVERIFIED |
| TTrulife | Bellingham | — | ◇ UNVERIFIED |
| UCUnited Coatings INC | Sedro Woolley | — | ◇ UNVERIFIED |
| UAUrban Accessories, Inc. | Tacoma | — | ◇ UNVERIFIED |
| VMValberg Mfg INC | Snohomish | — | ◇ UNVERIFIED |
| VMValleyford Metal Crafters LLC | Spokane | — | ◇ UNVERIFIED |
| VWValmont West Coast Engineering | Ferndale | — | ◇ UNVERIFIED |
| VSVancouver Steel Painters | Vancouver | — | ◇ UNVERIFIED |
| VMVrc Metals Systems Port Orchard | Port Orchard | — | ◇ UNVERIFIED |
| VRV & R Sheetmetal LLC | Seattle | — | ◇ UNVERIFIED |
| VPVulcan Products CO | Woodinville | — | ◇ UNVERIFIED |
| WRWa317934822 - Rate INC | Kelso | — | ◇ UNVERIFIED |
| WCWa317934917 - Centerline Machine INC | Puyallup | — | ◇ UNVERIFIED |
| WRWa317934951 - Rexam Beverage Can Company | Kent | — | ◇ UNVERIFIED |
| WRWa317935093 - Reed Scott T | Bellingham | — | ◇ UNVERIFIED |
| WOWa317935118 - Olympia Powder Coating LLC | Olympia | — | ◇ UNVERIFIED |
| WSWa317935235 - Shapecut Industries LLC | Spokane | — | ◇ UNVERIFIED |
| WCWa317935397 - Cutters INC | Bellingham | — | ◇ UNVERIFIED |
| WUWa317935412 - Universal Steel Manufacturing LLC | Tacoma | — | ◇ UNVERIFIED |
| WMWa317935760 - Monarch Machine Tool CO INC | Kennewick | — | ◇ UNVERIFIED |
| WBWa317935786 - Brooklyn Iron Works INC | Spokane | — | ◇ UNVERIFIED |
| WKWa317935900 - Krueger Sheet Metal CO | Spokane | — | ◇ UNVERIFIED |
| WGWa317936074 - Gm Nameplate INC | Renton | — | ◇ UNVERIFIED |
| WHWa317936148 - Henry Pratt Company LLC | Woodland | — | ◇ UNVERIFIED |
| WBWa317936261 - B & G Industries INC | Enumclaw | — | ◇ UNVERIFIED |
| WMWa317936332 - Modern Machine Company | Seattle | — | ◇ UNVERIFIED |
