| UCUnion Carbide CORP Holz Impoundment | Near South Charleston | WV | — | ◇ UNVERIFIED |
| UFUnion Forest Products Site | Union | OR | — | ◇ UNVERIFIED |
| UTUnion Tools Dowel Mill | Lebanon | KY | — | ◇ UNVERIFIED |
| USUnited Salt Corporation | Missouri City | TX | — | ◇ UNVERIFIED |
| USUnited States Department of Energy Savannah River Site | Aiken | SC | — | ◇ UNVERIFIED |
| USUnivar Solutions Liquids Plant Legacy Magnablend | Waxahachie | TX | — | ◇ UNVERIFIED |
| USUnivar Solutions USA LLC | Fairfield | CA | — | ◇ UNVERIFIED |
| UUUnivar USA INC | Hobbs | NM | — | ◇ UNVERIFIED |
| UFUniversal Forest Products | Woodburn | OR | — | ◇ UNVERIFIED |
| UFUniversal Forest Products Eastern Division, INC. | Millry | AL | — | ◇ UNVERIFIED |
| UPUniversal Polymer Corporation | Chino | CA | — | ◇ UNVERIFIED |
| UHUnlimited Horizons, L.l.c. | Matthews | NC | — | ◇ UNVERIFIED |
| UUnocal | Wilmington | CA | — | ◇ UNVERIFIED |
| UCUpper Columbia Mill | Boardman | OR | — | ◇ UNVERIFIED |
| USUrbana Sawmill Expansion | El Dorado | AR | — | ◇ UNVERIFIED |
 Urban Electric Power INC | Pearl River | NY | — | ◇ UNVERIFIED |
| ULUsaccess, LLC | Monticello | MS | — | ◇ UNVERIFIED |
| UIUSA Impact, LLC | Carrollton | TX | — | ◇ UNVERIFIED |
| UAU.s. Army - Pine Bluff Arsenal | White Hall | AR | — | ◇ UNVERIFIED |
| UBUS Banknote CORP | Philadelphia | PA | — | ◇ UNVERIFIED |
| USU S Chips INC | Meridian | MS | — | ◇ UNVERIFIED |
| UUUsda Usfs R05 Air Attack Base | Chico | CA | — | ◇ UNVERIFIED |
| UUUsda Usfs R06 Fremont Nf Silver Lake Ranger District | Silver Lake | OR | — | ◇ UNVERIFIED |
| UDU.s. Department of Labor | Woodville | MS | — | ◇ UNVERIFIED |
| UDU.s. Department of Labor | Foxworth | MS | — | ◇ UNVERIFIED |
| UDUS Doi Blm Pocatello Air Tanker Base | Pocatello | ID | — | ◇ UNVERIFIED |
| UDUS Doi Blm Twin Falls Air Tanker Base | Twin Falls | ID | — | ◇ UNVERIFIED |
| UDU.s. Dol Osha | Crystal Spring | PA | — | ◇ UNVERIFIED |
| UOUsdol Osha | Lewistown | PA | — | ◇ UNVERIFIED |
| UOUsdol Osha | Dalton | GA | — | ◇ UNVERIFIED |
| UOUsdol Osha | Mount Pleasant Mills | PA | — | ◇ UNVERIFIED |
| UOUsdol Osha | Mohrsville | PA | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Eufaula | AL | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Monroeville | AL | — | ◇ UNVERIFIED |
| UEUS Ecology Alaska, LLC | Anchorage | AK | — | ◇ UNVERIFIED |
| UWU.s. Water Services | Aberdeen | MD | — | ◇ UNVERIFIED |
| UWUS Water Services | Carrollton | MO | — | ◇ UNVERIFIED |
 Utah Foam Products CO. INC. | Nephi | UT | — | ◇ UNVERIFIED |
| VPVacuum Process Engineering | Sacramento | CA | — | ◇ UNVERIFIED |
| VEValley Energy | Sterling | IL | — | ◇ UNVERIFIED |
| VLValley Lumber & Fencing INC | Summersville | WV | — | ◇ UNVERIFIED |
| VTValley Timber INC. | Fort Payne | AL | — | ◇ UNVERIFIED |
| VTValley Timbers L.c. | Antlers | OK | — | ◇ UNVERIFIED |
| VVValley View Hardwoods INC | Morehead | KY | — | ◇ UNVERIFIED |
| VCValliant Chips, INC. | Valliant | OK | — | ◇ UNVERIFIED |
| VHVan Houtte INC | Henderson | KY | — | ◇ UNVERIFIED |
| VMVanport Manufacturing, INC. | Boring | OR | — | ◇ UNVERIFIED |
| VCVape Craft LLC | Vista | CA | — | ◇ UNVERIFIED |
| VIVapor Image LLC | Hanover | MA | — | ◇ UNVERIFIED |
| VSVapor Source Hq | Pueblo | CO | — | ◇ UNVERIFIED |
| VIVaravo INC | North Hollywood | CA | — | ◇ UNVERIFIED |
| VIVarian INC | Lake Forest | CA | — | ◇ UNVERIFIED |
| VSVarian Sample Preparation Products | Harbor City | CA | — | ◇ UNVERIFIED |
| VWVarn Wood Preserving LLC | Hoboken | GA | — | ◇ UNVERIFIED |
| VBVaught Brothers Lumber CO | Central City | KY | — | ◇ UNVERIFIED |
| VCVenture Chemical INC. | Seagraves | TX | — | ◇ UNVERIFIED |
| VIVerifone INC | Lincoln | CA | — | ◇ UNVERIFIED |
| VCVerizon California INC. - Weaverville | Arcata | CA | — | ◇ UNVERIFIED |
| VMVersum Materials US LLC - Suite 101 | Tempe | AZ | — | ◇ UNVERIFIED |
| VTVer Tech Laboratories Inc | Rockford | MN | — | ◇ UNVERIFIED |
| VCVertex Chemical Corporation Memphis, Tn | Memphis | TN | — | ◇ UNVERIFIED |
| VUVesuvius USA Site | Chehalis | WA | — | ◇ UNVERIFIED |
| VLVhg Labs INC. Dba Lgc Standards | Manchester | NH | — | ◇ UNVERIFIED |
| VVVida Verde, LLC | Fayetteville | AR | — | ◇ UNVERIFIED |
| VGVincit Group | Livingston | CA | — | ◇ UNVERIFIED |
| VFVirginia-carolina Forest Products INC | Lawrenceville | VA | — | ◇ UNVERIFIED |
| VFVirginia Forest Products LLC | Duffield | VA | — | ◇ UNVERIFIED |
| VRVmr Receiving | Miami | FL | — | ◇ UNVERIFIED |
 Vorbeck Materials CORP. | Grand Forks | ND | — | ◇ UNVERIFIED |
| VVulcan | Los Gatos | CA | — | ◇ UNVERIFIED |
| VIVwr International, LLC | Bridgeport | NJ | — | ◇ UNVERIFIED |
| WPWa317935096 - Pacific Shingle INC | Forks | WA | — | ◇ UNVERIFIED |
| WHWa317935956 - Hoffman James Henry | Chehalis | WA | — | ◇ UNVERIFIED |
| WGWa317936601 - Great Western Lumber CO | Everson | WA | — | ◇ UNVERIFIED |
| WOWa317936726 - Oroville Reman & Reload INC | Oroville | WA | — | ◇ UNVERIFIED |
| WNWa317937650 - Northwest Hardwoods INC Dba Nw Hardwoods | Longview | WA | — | ◇ UNVERIFIED |
| WSWa317938503 - Shearer Brothers Chipping LLC | Shelton | WA | — | ◇ UNVERIFIED |
| WSWa317938712 - South Everson Lumber CO INC | Everson | WA | — | ◇ UNVERIFIED |
| WSWa317938796 - Summit Cedar Reman LLC | Dallesport | WA | — | ◇ UNVERIFIED |
| WPWa317939024 - Pacific Hardwoods LLC | Raymond | WA | — | ◇ UNVERIFIED |
| WSWa317939447 - Simpson Door Company | Mccleary | WA | — | ◇ UNVERIFIED |
| WMWa317940059 - Manke Lumber Company INC | Shelton | WA | — | ◇ UNVERIFIED |
| WMWa317940166 - M L Cedar Products INC | Forks | WA | — | ◇ UNVERIFIED |
| WNWa317941620 - Northwest Hardwoods INC Dba Nw Hardwoods | Centralia | WA | — | ◇ UNVERIFIED |
| WEWa317941621 - Esses Botanical INC | Montesano | WA | — | ◇ UNVERIFIED |
| WPWa317943157 - Pacific Hardwoods LLC | South Bend | WA | — | ◇ UNVERIFIED |
| WSWa317943218 - Snow Peak Forest Products Incorporated | Spokane Valley | WA | — | ◇ UNVERIFIED |
| WSWa317943295 - S D S Lumber CO | Bingen | WA | — | ◇ UNVERIFIED |
| WWWa317943786 - Willamette Valley CO | Centralia | WA | — | ◇ UNVERIFIED |
| WMWa317944306 - Manke Lumber Company INC | Shelton | WA | — | ◇ UNVERIFIED |
| WAWa317944601 - Alta Forest Products LLC | Amanda Park | WA | — | ◇ UNVERIFIED |
| WFWa317945020 - Frank Brooks Manufacturing | Bellingham | WA | — | ◇ UNVERIFIED |
| WSWa317945150 - Snow Peak Forest Products Incorporated | Spokane Valley | WA | — | ◇ UNVERIFIED |
| WMWa317946434 - Mama J S LLC | Longview | WA | — | ◇ UNVERIFIED |
| WAWa317947059 - Alta Forest Products LLC | Shelton | WA | — | ◇ UNVERIFIED |
| WGWa317947393 - Great Western Lumber CO | Everson | WA | — | ◇ UNVERIFIED |
| WHWa317947419 - Hampton Lumber Mills-washington INC | Napavine | WA | — | ◇ UNVERIFIED |
| WCWa317947772 - Columbia Cedar INC | Colville | WA | — | ◇ UNVERIFIED |
| WLWa317948188 - Llk INC | Naches | WA | — | ◇ UNVERIFIED |
| WFWa317948360 - Fritch Forest Products INC | Snohomish | WA | — | ◇ UNVERIFIED |
