| W & A DISTRIBUTION SERVICES INCFort Atkinson, WI | 427949 | 59 |
| WADDELL-WOJCIK TRUCKING INCDarien, WI | 473360 | 84 |
| WALGREEN OSHKOSH INCWindsor, WI | 76502 | 1068 |
| WALL STREET WAREHOUSE INCGreen Bay, WI | 615569 | 6 |
| WALLACE TRUCKING LLCGenoa City, WI | 2265483 | 2 |
| WASTE MANAGEMENT OF MINNESOTA INCGermantown, WI | 308623 | 576 |
| WAUPACA NORTHWOODS LLCWaupaca, WI | 792475 | 2 |
| WAUSAU SUPPLY TRUCKING LLCSchofield, WI | 3422451 | 134 |
| WAYNE BOHL TRUCKING LLCSparta, WI | 1121585 | 15 |
| WCC TRANSPORT LLCWausau, WI | 1370867 | 24 |
| WEAVER TRUCKING LLCMilwaukee, WI | 3235520 | 1 |
| WEBSTER TRANSFER INCMadison, WI | 759611 | 2 |
| WEL COMPANIES INCDe Pere, WI | 166046 | 349 |
| WENNINGER TRANSPORT INCWautoma, WI | 3213006 | 10 |
| WESEMAN & SON TRUCKING LLCFlorence, WI | 3992253 | 1 |
| WESTERN INDUSTRIES INCMilwaukee, WI | 48251 | 3 |
| WFHC TRANSPORTATION LLCWaupaca, WI | 3066582 | 6 |
| WIEDENBECK INCMadison, WI | 1041610 | 5 |
| WIEDERHOLT ENTERPRISES LLCCuba City, WI | 1344765 | 30 |
| WIL POWER ENTERPRISES LLCOak Creek, WI | 4486757 | 0 |
| WILLIAM GENE CLARKAshland, WI | 46291 | 2 |
| WILLIAMS WAY INCEau Claire, WI | 4083117 | 2 |
| WILLING TRUCKING INCEvansville, WI | 679667 | 8 |
| WINDY HILL FOLIAGE INCMarshfield, WI | 201875 | 139 |
| WISCONSIN HARDWOODS LLCMason, WI | 3619408 | 2 |
| WISCONSIN NATIONWIDE TRANSPORTATION INC OF TWO RIVERSTwo Rivers, WI | 506274 | 42 |
| WISCONSIN SPECIALIZED LLCDenmark, WI | 4069846 | 1 |
| WISCONSIN UTILITY EXPOSURE, INC.Waukesha, WI | 6308143 | 35 |
| WISSOTA EXPRESS LLCChippewa Falls, WI | 4462810 | 1 |
| WITTMAN CONSTRUCTION LLCAppleton, WI | 885935 | 3 |
| WIZARDS OF CONCRETE LLCWaukesha, WI | 2201201 | 1 |
| WOLFE PALLETWaukesha, WI | 4364447 | 1 |
| WONDER SIGN LLCGreen Bay, WI | 3914903 | 1 |
| WOOD WASTE PROS LLCWaukesha, WI | 2635674 | 3 |
| WORKS TRANSPORTATION LLCAppleton, WI | 4243947 | 1 |
| WSB LAKE COUNTRY INCMilwaukee, WI | 4071595 | 1 |
| WUETHRICH TRANSPORTATION INCGreenwood, WI | 268465 | 54 |
| WYNN'S TRUCKING LLCKimberly, WI | 3746889 | 2 |