| CONSTRUCTION WASTE MANAGEMENT CO | 2183411 | MUKILTEO | 4 |
| CONSTRUCTION WASTE MANAGEMENT INC | 1932685 | WOODINVILLE | 5 |
| CONSULTING SERVICES OF AMERICA LLC | 1571577 | ENUMCLAW | 2 |
| CONSUMER RENTAL LLC | 2328330 | MT VERNON | 1 |
| CONTAINER BROS LLC | 3821147 | MOSES LAKE | 2 |
| CONTAINER CONNECTION | 1909209 | SULTAN | 1 |
| CONTAINER DELIVERY SERVICE LLC | 3313935 | CARBONADO | 12 |
| CONTAINER DYNAMICS FREIGHT SERVICES LLC | 2870016 | AUBURN | 10 |
| CONTAINER STORAGE COMPANY INC | 3187554 | MILTON | 10 |
| CONTAINER WORX LLC | 3576213 | EDMONDS | 1 |
| CONTARGO LLC | 4200952 | SAMMAMISH | 5 |
| CONTECH SERVICES INC | 2959343 | SEATTLE | 4 |
| CONTEMPO HOMES LLC | 3269837 | SPOKANE | 1 |
| CONTEMPORARY DESIGN COMPANY | 2179107 | GLACIER | 1 |
| CONTEMPORARY DEVELOPMENT | 2312410 | BOTHELL | 1 |
| CONTEMPORARY RESURFACE | 3892191 | FEDERAL WAY | 38 |
| CONTINENT EXPRESS LLC | 1382250 | VANCOUVER | 1 |
| CONTINENTAL CONCRETE INC | 2390624 | SPOKANE | 1 |
| CONTINENTAL CONCRETE NW LLC | 3768552 | MONROE | 1 |
| CONTINENTAL CONTRACTORS INC | 612329 | NINE MILE FALLS | 15 |
| CONTINENTAL DIRT CONTRACTORS INC | 683007 | AUBURN | 11 |
| CONTINENTAL DOOR COMPANY LLC | 2094431 | SPOKANE | 33 |
| CONTINENTAL EXPRESS LLC | 4517449 | VANCOUVER | 1 |
| CONTINENTAL EXPRESS OF WASHINGTON LLC | 1010932 | BATTLE GROUND | 2 |
| CONTINENTAL FLORAL FREIGHT LLC | 2544288 | BELFAIR | 1 |
| CONTINENTAL FLORAL FREIGHT LLC | 3414719 | BELFAIR | 0 |
| CONTINENTAL FREIGHT GROUP, INC | 9302994 | FIFE | 0 |
| CONTINENTAL MARKETING AGENCY INC | 4728740 | PUYALLUP | 1 |
| CONTINENTAL SUPPLY NORTHWEST LLC | 3395930 | CHEHALIS | 11 |
| CONTINENTAL TRAFFIC COMPANY INC | 2218216 | LYNNWOOD | 0 |
| CONTINENTAL VAN LINES INC | 11997 | TACOMA | 26 |
| CONTINUANT INC | 3972703 | FIFE | 1 |
| CONTOUR FENCE CO INC | 2391618 | SNOHOMISH | 3 |
| CONTOUR FENCE NW LLC | 3583166 | KIRKLAND | 0 |
| CONTOUR GRADING LLC | 3406200 | SPOKANE | 5 |
| CONTOUR LAMINATES INC | 801248 | TACOMA | 1 |
| CONTRACT DESIGN ASSOCIATES INC | 1762284 | SPOKANE | 8 |
| CONTRACT HARDWARE INC | 2380216 | EVERETT | 6 |
| CONTRACTORS EQUIPMENT MAINTENANCE COMPANY | 540685 | PASCO | 6 |
| CONTRACTORS FLOORING SUPPLY | 2342021 | PUYALLUP | 1 |
| CONTRACTORS ROOF SERVICE INC | 1963193 | GIG HARBOR | 1 |
| CONTRERAS & SONS TRUCKING LLC | 4129544 | WAPATO | 1 |
| CONTRERAS RENOVATIONS LLC | 3299489 | FEDERAL WAY | 1 |
| CONTRERAS ROOFING LLC | 3905082 | SPOKANE VLY | 2 |
| CONTRERAS TRANSPORT LLC | 3551568 | TOPPENISH | 3 |
| CONTRERAS TRUCKING 3 LLC | 946288 | PASCO | 2 |
| CONTRERAS TRUCKING LLC | 2902096 | WARDEN | 3 |
| CONTROL TOWER LOGISTICS LLC | 5612974 | SPOKANE | 0 |
| CONURE LANDSCAPE AND CONSTRUCTION LLC | 3425461 | ROCHESTER | 4 |
| CONVENIENT LAWN SERVICES LLC | 3436272 | MOXEE | 1 |
| CONVERSION LLC | 3830983 | CARSON | 2 |
| CONVERTERS EXPRESS INC | 653825 | WOODINVILLE | 1 |
| CONVOY INC | 2642672 | SEATTLE | 0 |
| CONVOY SUPPLY INC | 911723 | SPOKANE | 70 |
| CONWAY CONSTRUCTION COMPANY | 1543303 | VANCOUVER | 11 |
| CONWAY FEED INC | 1923702 | CONWAY | 12 |
| CONWAY HILL GOLF CARTS | 4234314 | MOUNT VERNON | 1 |
| CONWAY RECOVERY LLC | 3545080 | MOUNT VERNON | 0 |
| CONWAY TRUCKING LLC DEAN CONWAY | 579915 | RAINIER | 1 |
| CONWAYS CARRIER INC | 2453407 | VANCOUVER | 2 |
| COOGAN LAND DEVELOPMENT LLC | 4063909 | STEVENSON | 2 |
| COOK AND SONS TRUCKING INC | 536763 | TOLEDO | 2 |
| COOK FORM'S AND SONS LLC | 3673407 | OTIS ORCHARDS | 3 |
| COOK HAY CO | 1023158 | ELLENSBURG | 1 |
| COOK STRUCTURAL MOVERS LLC | 1902586 | SEATTLE | 1 |
| COOK WELDING SERVICES INCORPORATED | 3815118 | EVERETT | 1 |
| COOK'S CONCRETE CONSTRUCTION CO INC | 1910557 | TACOMA | 2 |
| COOK'S MAGNOLIA LAWN CARE LLC | 3991788 | PUYALLUP | 1 |
| COOKE AQUACULTURE PACIFIC LLC | 1906899 | ANACORTES | 6 |
| COOKSON LOGISTICS LLC | 8495591 | SEATTLE | 0 |
| COOL RUNNING EXPRESS LLC | 4234668 | PUYALLUP | 1 |
| COOL RUNNINGS CONSTRUCTION LLC | 4196354 | BELLINGHAM | 2 |
| COOL TOOLS LLC | 4105774 | ARLINGTON | 1 |
| COOMBES ENTERPRISES LLC | 829401 | OLYMPIA | 1 |
| COOPER & SONS LANDSCAPING LLC | 4566462 | BREMERTON | 2 |
| COOPER CLEANING AND RESTORATION LLC | 3686810 | VANCOUVER | 4 |
| COOPER CORP | 2404624 | KENMORE | 1 |
| COOPER COUNTRY FARMS | 2117323 | NEWMAN LAKE | 1 |
| COOPER FARMS INC | 1894768 | MESA | 20 |
| COOPER POINT CONTRACTING LLC | 3685212 | OLYMPIA | 1 |
| COOPERS COLLISION | 3743449 | TACOMA | 1 |
| COOPERS CONCRETE PUMPING | 4146806 | SPOKANE | 0 |
| COOPERS LANDSCAPE & MAITENANCE LLC | 3846036 | LYNNWOOD | 1 |
| COOSKI FARMS INC | 4420462 | KENNEWICK | 3 |
| COPE BROTHERS TRUCKING LLC | 3388915 | TACOMA | 4 |
| COPENHAVER CONST INC | 999798 | CRESTON | 36 |
| COPES CUSTOM EXTERIORS | 4531405 | SPOKANE VALLEY | 1 |
| COPIERS NORTHWEST INC | 1933462 | SEATTLE | 8 |
| COPIOUS TRANSPORT LLC | 3501596 | TACOMA | 1 |
| COPMAR LLC | 3632589 | BRUSH PRAIRIE | 1 |
| COPPER CREEK ELECTRIC LLC | 2826603 | ORTING | 1 |
| COPPER CREEK FABRICATION LLC | 2347253 | SEQUIM | 1 |
| COPPER CREEK LAND CO LLC | 3840119 | KELLER | 1 |
| COPPER CREEK LANDSCAPING INCORPERATED | 1893952 | SPOKANE | 14 |
| COPPER CREEK TRANSPORTATION INC | 1069910 | PUYALLUP | 3 |
| COPPER DIAMOND LOGISTICS LLC | 4192664 | VANCOUVER | 1 |
| COPPER EAGLE LLC | 4365101 | BRUSH PRAIRIE | 0 |
| COPPER HEMP ELECTRIC LLC | 3815883 | YAKIMA | 1 |
| COPPER HILLS CONSTRUCTION LLC | 3758723 | YAKIMA | 1 |
| COPPER MECHANICAL LLC | 4294453 | RIDGEFIELD | 8 |