| TTT & T Sawmill, LLC | Mountain View | AR | — | ◇ UNVERIFIED |
| TBTukey Brothers INC | Belgrade | ME | — | ◇ UNVERIFIED |
| TRTwin Rivers Pine Bluff LLC | White Hall | AR | — | ◇ UNVERIFIED |
| TRTwo Rivers Lumber Company, LLC - Woodyard | Demopolis | AL | — | ◇ UNVERIFIED |
| UEUfp Eaton, LLC | Eaton | CO | — | ◇ UNVERIFIED |
| UAUltra Additives LLC | Bloomfield | NJ | — | ◇ UNVERIFIED |
| ULUmpqua Lumber Company | Myrtle Creek | OR | — | ◇ UNVERIFIED |
| UCUngerer & CO CORP | Lincoln Park | NJ | — | ◇ UNVERIFIED |
| UFUnilin Flooring Nc LLC | Holden | WV | — | ◇ UNVERIFIED |
| UFUnilin Flooring Nc, Llc, Holden | Holden | WV | — | ◇ UNVERIFIED |
| UNUnilin North America Danville Va | Danville | VA | — | ◇ UNVERIFIED |
| UCUnion Carbide CORP | Torrance | CA | — | ◇ UNVERIFIED |
| UCUnion Carbide CORP Holz Impoundment | Near South Charleston | WV | — | ◇ UNVERIFIED |
| UPUnited Parcel Service - Ramapo Ridge (njrar) | Mahwah | NJ | — | ◇ UNVERIFIED |
| USUnited Salt Corporation | Missouri City | TX | — | ◇ UNVERIFIED |
| USUnivar Solutions Liquids Plant Legacy Magnablend | Waxahachie | TX | — | ◇ UNVERIFIED |
| USUnivar Solutions Ssc Facility | Waxahachie | TX | — | ◇ UNVERIFIED |
| UUUnivar Usa, INC - Williston | Williston | ND | — | ◇ UNVERIFIED |
| UOUniversal Oil Products (chemical Division) | East Rutherford | NJ | — | ◇ UNVERIFIED |
| UTUpland Timber, INC. | Mountain View | MO | — | ◇ UNVERIFIED |
| UCUpper Columbia Mill | Boardman | OR | — | ◇ UNVERIFIED |
 Urban Electric Power INC | Pearl River | NY | — | ◇ UNVERIFIED |
| USUsc Saltville Brine LLC | Saltville | VA | — | ◇ UNVERIFIED |
| UEUS Ecology Mobile Recycling, INC. | Mount Airy | NC | — | ◇ UNVERIFIED |
| UWU.s. Water Services | Aberdeen | MD | — | ◇ UNVERIFIED |
| UWUS Water Services INC | Cambridge | MN | — | ◇ UNVERIFIED |
| VCVacuform CORP | Columbus | OH | — | ◇ UNVERIFIED |
| VLValley Lumber & Fencing INC | Summersville | WV | — | ◇ UNVERIFIED |
| VTValley Timber INC. | Fort Payne | AL | — | ◇ UNVERIFIED |
| VFValue Fragrances & Flavors | Goshen | NY | — | ◇ UNVERIFIED |
| VMVanport Manufacturing, INC. | Boring | OR | — | ◇ UNVERIFIED |
| VSVapor Source Hq | Pueblo | CO | — | ◇ UNVERIFIED |
| VSVarian Sample Preparation Products | Harbor City | CA | — | ◇ UNVERIFIED |
| VCVerizon California INC. - Weaverville | Arcata | CA | — | ◇ UNVERIFIED |
| VMVersum Materials US LLC - Suite 101 | Tempe | AZ | — | ◇ UNVERIFIED |
| VCVertex Chemical Corporation Memphis, Tn | Memphis | TN | — | ◇ UNVERIFIED |
| VUVesuvius USA Site | Chehalis | WA | — | ◇ UNVERIFIED |
| WTWalsh Trucking CO LTD Morton | Morton | WA | — | ◇ UNVERIFIED |
| WSWarm Springs Mill | Warm Springs | VA | — | ◇ UNVERIFIED |
| WGWarren & Griffin | Williams | SC | — | ◇ UNVERIFIED |
| WFWarrenton Fiber Company | Warrenton | OR | — | ◇ UNVERIFIED |
| WWWatauga Wood Products, INC. | Boone | NC | — | ◇ UNVERIFIED |
| WIWatcon, INC | South Bend | IN | — | ◇ UNVERIFIED |
| WLWayne Lumber CO INC | Monticello | KY | — | ◇ UNVERIFIED |
| WWWellons Water Technology | Vancouver | WA | — | ◇ UNVERIFIED |
| WJWells J V INC - Sharptown | Sharptown | MD | — | ◇ UNVERIFIED |
| WWWestern Wood Products | Raton | NM | — | ◇ UNVERIFIED |
| WFWest Fraser Citronelle Lumber Mill | Citronelle | AL | — | ◇ UNVERIFIED |
| WFWest Fraser INC | Maplesville | AL | — | ◇ UNVERIFIED |
| WFWest Fraser, INC. | Whitehouse | FL | — | ◇ UNVERIFIED |
