| WPWaste Path Sanitary Landfill LLC | Calvert City | KY | — | ◇ UNVERIFIED |
| WWatermark | Ozark | MO | — | ◇ UNVERIFIED |
| WSWater Science Technologies LLC | Birmingham | AL | — | ◇ UNVERIFIED |
| WSWater Science Technologies LLC - Miles City | Miles City | MT | — | ◇ UNVERIFIED |
| WPWaterway Plastics | Oxnard | CA | — | ◇ UNVERIFIED |
| WCWaveguide Corporation | Cambridge | MA | — | ◇ UNVERIFIED |
| WFWeatherford Facility Manufacturing | Weatherford | TX | — | ◇ UNVERIFIED |
| WIWebco, INC. | Soddy Daisy | TN | — | ◇ UNVERIFIED |
| WWeber | San Leandro | CA | — | ◇ UNVERIFIED |
| WTWelding & Therapy Service INC | Louisville | KY | — | ◇ UNVERIFIED |
| WSWeld-rite Supply | Princeton | IN | — | ◇ UNVERIFIED |
| WLWellmark LLC | Asheboro | NC | — | ◇ UNVERIFIED |
| WWWellons Water Technology | Vancouver | WA | — | ◇ UNVERIFIED |
| WAWellston Aerosol Mfg CO INC | Wellston | OH | — | ◇ UNVERIFIED |
| WPWescon Plastics LLC | Wichita | KS | — | ◇ UNVERIFIED |
| WAWestech Aerosol | Bremerton | WA | — | ◇ UNVERIFIED |
| WPWestech Products INC | Corona | CA | — | ◇ UNVERIFIED |
 Western International Gas & Cylinders | Bellville | TX | — | ◇ UNVERIFIED |
| Western International Gas & Cylinders INC | Bakersfield | CA | — | ◇ UNVERIFIED |
| Western International Gas - Tampa | Tampa | FL | — | ◇ UNVERIFIED |
| WPWestern Plastics | Temecula | CA | — | ◇ UNVERIFIED |
| WRWestern Refinery | Jamestown | NM | — | ◇ UNVERIFIED |
| WRWestern Refining - Gallup Refinery | Gallup | NM | — | ◇ UNVERIFIED |
| WRWestern Refining Terminals LLC - Cottage Grove | Cottage Grove | MN | — | ◇ UNVERIFIED |
| WSWestern Slope Refining CO | Fruita | CO | — | ◇ UNVERIFIED |
| WSWestern Synthetic Fiber, INC | Carson | CA | — | ◇ UNVERIFIED |
| WSWestfalia Surge West INC. | Fresno | CA | — | ◇ UNVERIFIED |
| WCWestlake Chemical | Gallman | MS | — | ◇ UNVERIFIED |
| WEWestlake Epoxy Deer Park | Deer Park | TX | — | ◇ UNVERIFIED |
| WVWestlake Vinyls CO LP | Geismar | LA | — | ◇ UNVERIFIED |
| WVWest Virginia Methanol, Inc, Pleasants County | Saint Marys | WV | — | ◇ UNVERIFIED |
| WFWestwego Facility | Westwego | LA | — | ◇ UNVERIFIED |
| WLWestwin LTD | Detroit | MI | — | ◇ UNVERIFIED |
| WDWet Design | Sun Valley | CA | — | ◇ UNVERIFIED |
| WGW G Tomko INC | Finleyville | PA | — | ◇ UNVERIFIED |
| WCWharton Chemical Complex | Hungerford | TX | — | ◇ UNVERIFIED |
| WCWhitehead Construction Asphalt Plant | Pascagoula | MS | — | ◇ UNVERIFIED |
| WCWhitehead Construction Company Inc, Whitehead Asphalt Plant | Pascagoula | MS | — | ◇ UNVERIFIED |
| WWWhitewater Whirlpool Baths & Systems- Cultured Marble & Fiberglass Casting | Lindon | UT | — | ◇ UNVERIFIED |
| WIWhitney Investments - Chess Drive Associates | Foster City | CA | — | ◇ UNVERIFIED |
| WBWie-agron Bioenergy LLC Dba Agron Bioenergy | Watsonville | CA | — | ◇ UNVERIFIED |
| WCWilana Chemical, LLC | Columbus | GA | — | ◇ UNVERIFIED |
| WRWilco Refining LLC | Albany | KY | — | ◇ UNVERIFIED |
| WIWilcorp Inds INC -bil | Billings | MO | — | ◇ UNVERIFIED |
 Wilhelmsen Ships Service INC | Ontario | CA | — | ◇ UNVERIFIED |
| WAWilliam Atkinson | Apple Valley | CA | — | ◇ UNVERIFIED |
| WAWillows at East Greenville | East Greenville | PA | — | ◇ UNVERIFIED |
| WKWill's Kydex LLC | Arvada | CO | — | ◇ UNVERIFIED |
| WQWilly Quoc Mai | La Mesa | CA | — | ◇ UNVERIFIED |
| WPWilpak Plastics Industries INC | Kearny | NJ | — | ◇ UNVERIFIED |
| WLWilsonart LLC | Tampa | FL | — | ◇ UNVERIFIED |
| WWincup | Lexington | MO | — | ◇ UNVERIFIED |
| WFWingate Fractionator | Rehoboth | NM | — | ◇ UNVERIFIED |
| WRWinnebago Rng Plant | Rockford | IL | — | ◇ UNVERIFIED |
| WMWinnemucca Municipal Airport Nw Quadrant | Winnemucca | NV | — | ◇ UNVERIFIED |
| WTWisconsin Tool & Mold Co., INC. | Friendship | WI | — | ◇ UNVERIFIED |
| WLW. L. Gore & Associates, INC. - Elk Mills 1 | Elkton | MD | — | ◇ UNVERIFIED |
| WLW L Plastics CORP | Cedar City | UT | — | ◇ UNVERIFIED |
| WEWls Enterprises, INC | Indianapolis | IN | — | ◇ UNVERIFIED |
| WBWm Barr | Memphis | TN | — | ◇ UNVERIFIED |
| WLWmc LLC | Greenville | MI | — | ◇ UNVERIFIED |
| WCWohler Chemical, LLC | Anaheim | CA | — | ◇ UNVERIFIED |
| WIWolco, INC. | Saint Louis | MO | — | ◇ UNVERIFIED |
| WLWolf Lake Terminals, INC. | Hammond | IN | — | ◇ UNVERIFIED |
| WPWolverine Plastics Inc | Ellwood City | PA | — | ◇ UNVERIFIED |
| WWooBamboo | Cape Coral | FL | — | ◇ UNVERIFIED |
| WEWoodside Energy USA INC / Woodside Energy H2ok | Ardmore | OK | — | ◇ UNVERIFIED |
| WTWooldridge Tissue Service | Gardena | CA | — | ◇ UNVERIFIED |
| WFWorkers First LLC | Pittsburgh | PA | — | ◇ UNVERIFIED |
| WGWorland Gas Plant | Worland | WY | — | ◇ UNVERIFIED |
| WEWorld Energy Elk Grove LLC | Elk Grove | CA | — | ◇ UNVERIFIED |
| WOWorld Oil CO #2 | Los Angeles | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Company #68 | Huntington Beach | CA | — | ◇ UNVERIFIED |
| WOWorld Oil CORP | Bakersfield | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Co, Ss# 17 | Los Angeles | CA | — | ◇ UNVERIFIED |
| WOWorld Oil CO Ss# 63 | Los Angeles | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Marketing CO #1 | Los Angeles | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Marketing CO #106 | Rancho Mirage | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Marketing CO #13 | Los Angeles | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Marketing Company | Fullerton | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Marketing Company #42 | Newport Beach | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Marketing Co., Ss #60 | Los Angeles | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Marketing Co, Station #65 | West Hollywood | CA | — | ◇ UNVERIFIED |
| WOWorldwide of New York INC | Dix Hills | NY | — | ◇ UNVERIFIED |
| WTWpc Technologies | Fenton | MO | — | ◇ UNVERIFIED |
| WRW. R. Grace & Co.-conn. | Baltimore | MD | — | ◇ UNVERIFIED |
| WGW.r. Grace & CO. - Conn. | Baltimore | MD | — | ◇ UNVERIFIED |
| WRW R Grace & CO Conn Grace Construction Prods | Hatfield | PA | — | ◇ UNVERIFIED |
| WSWrist Ship Supply | Harahan | LA | — | ◇ UNVERIFIED |
| WSW.r. Smith & Sons, INC. | Nanuet | NY | — | ◇ UNVERIFIED |
| WSWSM Supplier LLC. | Miami | FL | — | ◇ UNVERIFIED |
| WUWsp USA Solutions INC | Scotts Valley | CA | — | ◇ UNVERIFIED |
| WIWSU Investments, LLC | Jackson | MI | — | ◇ UNVERIFIED |
| WWte | Albany | NY | — | ◇ UNVERIFIED |
| WIWwcmc INC | Santa Rosa | CA | — | ◇ UNVERIFIED |
| XIXandex INC | Petaluma | CA | — | ◇ UNVERIFIED |
| XX-chem | — | TX | — | ◇ UNVERIFIED |
| XIX-chem INC | Harahan | LA | — | ◇ UNVERIFIED |
| XIXena International INC | Polo | IL | — | ◇ UNVERIFIED |
| XEXto Energy - Nesson Gas Plant | Tioga | ND | — | ◇ UNVERIFIED |
