| W C T LOGISTICS LLCTukwila, WA | 2362126 | 35 |
| WA SINGH LLCBremerton, WA | 4495969 | 1 |
| WAHAHA EXPRESS LLCVancouver, WA | 4393290 | 1 |
| WAIT 2 LLCTukwila, WA | 3921895 | 1 |
| WALLA WALLA NURSERY COMPANY INCWalla Walla, WA | 1254207 | 42 |
| WARAICH TRANS INCPuyallup, WA | 3023871 | 7 |
| WARDI STAR TRANSPORT LLCBurien, WA | 3426749 | 1 |
| WASHINGTON CRAB PRODUCERS INC PACIFIC SEAFOOD WESTPORT LLCWestport, WA | 12048 | 5 |
| WASHINGTON FREIGHT SERVICE LLCRenton, WA | 2542736 | 30 |
| WASHINGTON PORT TRUCKING LLCDes Moines, WA | 3036330 | 1 |
| WASHINGTON POTTERY COMPANYKent, WA | 302945 | 2 |
| WASHINGTON TOWING SERVICE LLCPuyallup, WA | 4090162 | 1 |
| WASHINGTON TRANSPORTATION LLCSeattle, WA | 4315888 | 1 |
| WASHINGTON TRUCKING INCArlington, WA | 80580 | 70 |
| WASTE MANAGEMENT OF WASHINGTON INCKirkland, WA | 1967746 | 775 |
| WATZ TRUCKING LLCRenton, WA | 3969082 | 10 |
| WENATCHEE PETROLEUM COMPANYWenatchee, WA | 544157 | 14 |
| WESTERN CONTAINER TRANSPORT INCVancouver, WA | 183667 | 1 |
| WESTERN FREIGHT LLCAuburn, WA | 3288000 | 10 |
| WESTERN LINES INCFederal Way, WA | 3494141 | 5 |
| WESTERN STATES TRANSPORTATION SERVICE INCTacoma, WA | 284473 | 1 |
| WESTERN STEEL & SUPPLY INCAberdeen, WA | 12066 | 5 |
| WESTHILL TRUCKING LLCPuyallup, WA | 2571285 | 51 |
| WESTLAKE SEAFOOD LLCTacoma, WA | 3067261 | 2 |
| WESTLAND EXPRESS LLCTumwater, WA | 3469084 | 2 |
| WESTLAND LOGISTIX LLCAuburn, WA | 3133336 | 5 |
| WESTLINE TRANSPORTATION LLCVancouver, WA | 2446584 | 15 |
| WHITE HORSE TRUCKING LLCPuyallup, WA | 3565084 | 1 |
| WHITE LIGHTNING LOGISTICS & TRANSPORT LLCBonney Lake, WA | 1750159 | 0 |
| WHITE PLUS XPRESS INCEverett, WA | 933748 | 1 |
| WHITE TIMBER INDUSTRIES INCWoodland, WA | 294057 | 52 |
| WIJES LOGISTICS LLCSeattle, WA | 4212227 | 1 |
| WILDWEST EXPRESS LLCEverson, WA | 2993145 | 2 |
| WILLIAMSON BULK TRANSPORT LLCChewelah, WA | 3129485 | 2 |
| WILLOW EXPRESS LLCRenton, WA | 4120372 | 12 |
| WILLOW TRANSPORT LLCYakima, WA | 1764532 | 1 |
| WILSON OIL INCLongview, WA | 45007 | 141 |
| WING FAT LLCTacoma, WA | 4157650 | 2 |
| WINSUPPLY PUGET SOUND WA COTacoma, WA | 2256456 | 3 |
| WM WINKLER COMPANYNewman Lake, WA | 446090 | 100 |
| WMK TRANSPORT LLCPuyallup, WA | 3311498 | 1 |
| WOLF PACK TRANSFER LLCVancouver, WA | 4560829 | 1 |
| WOLFE TRUCKING LLCTonasket, WA | 459705 | 2 |
| WOLFKILL FEED & FERTILIZER CORPMonroe, WA | 12078 | 6 |
| WOODLAND TRUCK LINE INCWoodland, WA | 45034 | 17 |
| WORKIN CLASS TRANSPORT LLCEphrata, WA | 3413572 | 7 |
| WORLD WIDE GROUP LLCSpokane Valley, WA | 692360 | 1 |
| WT TRUCKING LLCKent, WA | 2535082 | 2 |
| WUESTHOFF EXCAVATION INCValley, WA | 1004101 | 12 |