| UCUnion Carbide Corporation | Piscataway | NJ | — | ◇ UNVERIFIED |
| UCUnion Carbide Corporation | Woodbine | GA | — | ◇ UNVERIFIED |
| UCUnion Carbide Corporation - Dow Chemical CO | Institute | WV | — | ◇ UNVERIFIED |
| UCUnion Carbide Corporation - Ucar Emulsion Systems | Garland | TX | — | ◇ UNVERIFIED |
| UCUnion Carbide Corporation - Ucc Technology Park Operations | South Charleston | WV | — | ◇ UNVERIFIED |
| UCUnion Carbide CORP Tucker Latex Plant | Tucker | GA | — | ◇ UNVERIFIED |
| UDUnique Dispensing Systems, LLC | Guilford | CT | — | ◇ UNVERIFIED |
| UDUnique Dispensing Systems, LLC | Guilford | CT | — | ◇ UNVERIFIED |
| UTUniroyal Tech CORP Royalite T | Redlands | CA | — | ◇ UNVERIFIED |
| UBUnited Biochemicals LLC | Sanborn | NY | — | ◇ UNVERIFIED |
| UOUnited Organics CORP | Williamston | NC | — | ◇ UNVERIFIED |
| URUnited Resins INC | Pittsgrove Township | NJ | — | ◇ UNVERIFIED |
 United Rotary Brush Corporation | Lenexa | KS | — | ◇ UNVERIFIED |
| USUnited Synthetics Proposed Building Addition | La Fayette | GA | — | ◇ UNVERIFIED |
| USUnivar Solutions Usa, LLC | Charlotte | NC | — | ◇ UNVERIFIED |
| UBUniversal Bioenergy of North America INC | Nettleton | MS | — | ◇ UNVERIFIED |
| UEUniversal Environmental Services, LLC | Peachtree City | GA | — | ◇ UNVERIFIED |
| UFUniversal Fibers INC. | Bristol | VA | — | ◇ UNVERIFIED |
 Universal Plastics - Middlefield (0228000127) | Middlefield | OH | — | ◇ UNVERIFIED |
| UOUniversity of Portland | Portland | OR | — | ◇ UNVERIFIED |
| UUop | Anaheim | CA | — | ◇ UNVERIFIED |
| UIUraseal INC | Dover | NH | — | ◇ UNVERIFIED |
| UCUremet CORP | Santa Ana | CA | — | ◇ UNVERIFIED |
| UCUremet CORP | Garden Grove | CA | — | ◇ UNVERIFIED |
| UHUrethane Holdings, LLC | Alpharetta | GA | — | ◇ UNVERIFIED |
| UEUSA Environment | Pasadena | TX | — | ◇ UNVERIFIED |
| USU. S Amines LLC | Axis | AL | — | ◇ UNVERIFIED |
| URUSA Resources Technology LLC | Elizabeth | NJ | — | ◇ UNVERIFIED |
| UBU.s. Biofuels INC | Rome | GA | — | ◇ UNVERIFIED |
| UBUS Biofuels INC. | Rome | GA | — | ◇ UNVERIFIED |
| UDUS Doe Kansas City Plant | Kansas City | MO | — | ◇ UNVERIFIED |
| UOUsdol Osha - Atlanta West Ao | Marietta | GA | — | ◇ UNVERIFIED |
| UOUsdol Osha Aurora Office | Elgin | IL | — | ◇ UNVERIFIED |
| UOUsdol Osha - Jacksonville | Ocala | FL | — | ◇ UNVERIFIED |
| USU S Energy Rng Deer Run | Kewaunee | WI | — | ◇ UNVERIFIED |
| USU S Energy Rng Facility Clover Hill | Ashford | WI | — | ◇ UNVERIFIED |
| UEU.s. Energy Rng Facility Dallmann | Brillion | WI | — | ◇ UNVERIFIED |
| UGU.s. Gain Rng Facility S&s | Sturgeon Bay | WI | — | ◇ UNVERIFIED |
| UMUS Merchants Financial Group | Ontario | CA | — | ◇ UNVERIFIED |
| UPUS Pipe Fabrication | Remington | VA | — | ◇ UNVERIFIED |
| URUssner Residence | Jackson | CA | — | ◇ UNVERIFIED |
| UPUsstc - Primary | Richmond | VA | — | ◇ UNVERIFIED |
| UIUti Intergrated Logistics/du Pont | Little Hocking | OH | — | ◇ UNVERIFIED |
| USUv Specialties LLC | Saint Charles | IL | — | ◇ UNVERIFIED |
| VPVac Pac Manufacturing | Baltimore | MD | — | ◇ UNVERIFIED |
| VTValenSil Technologies, LLC | Avon Lake | OH | — | ◇ UNVERIFIED |
| VLValfilm, LLC | Findlay | OH | — | ◇ UNVERIFIED |
| VWValfilm Wind Project | Findlay | OH | — | ◇ UNVERIFIED |
| VCValley Creative LLC | San Jose | CA | — | ◇ UNVERIFIED |
| VPValley Plastics | Stockton | CA | — | ◇ UNVERIFIED |
