| SLShell Lubricants Fowlerville | Fowlerville | MI | — | ◇ UNVERIFIED |
| SCShrieve Chemical Services | Marlin | TX | — | ◇ UNVERIFIED |
| SLShuqualak Lumber Company Inc, Planer Mill Division | Shuqualak | MS | — | ◇ UNVERIFIED |
| SESiemens Energy & Automation Incorporated | Roebuck | SC | — | ◇ UNVERIFIED |
| SPSierra Pacific | Aberdeen | WA | — | ◇ UNVERIFIED |
| SPSierra Pacific-anderson | Anderson | CA | — | ◇ UNVERIFIED |
| SPSierra Pacific Burney Facility | Burney | CA | — | ◇ UNVERIFIED |
| SPSierra Pacific Ind. Sonora | Sonora | CA | — | ◇ UNVERIFIED |
 Sierra Pacific Industries | Mount Vernon | WA | — | ◇ UNVERIFIED |
| Sierra Pacific Industries Lincoln Div | Lincoln | CA | — | ◇ UNVERIFIED |
| SOSigma-genosys of Texas | The Woodlands | TX | — | ◇ UNVERIFIED |
| SCSika CORP | Aurora | IL | — | ◇ UNVERIFIED |
| SLSimpson Lumber CO LLC | Shelton | WA | — | ◇ UNVERIFIED |
| SLSimpson Lumber CO Meldrim Operations | Meldrim | GA | — | ◇ UNVERIFIED |
| SCSmark CO | South Gate | CA | — | ◇ UNVERIFIED |
| SSSolid Start INC | Lakeland | FL | — | ◇ UNVERIFIED |
| SISolutia INC Krummrich Il (part) | Sauget | IL | — | ◇ UNVERIFIED |
| SUSolvay USA Midland | Midland | TX | — | ◇ UNVERIFIED |
| SCSouth Coast Lumber CO. | Brookings | OR | — | ◇ UNVERIFIED |
 South Coast Terminals Strang Road Facility | La Porte | TX | — | ◇ UNVERIFIED |
| SWSoutheast Wood | Louisville | AL | — | ◇ UNVERIFIED |
| SWSouthern Wood Preserving of Hattiesburg INC | Hattiesburg | MS | — | ◇ UNVERIFIED |
| SLSouthwin LTD Nevada | Sparks | NV | — | ◇ UNVERIFIED |
| SLSpecchem, LLC | Kansas City | KS | — | ◇ UNVERIFIED |
| SCStella-jones CORP | Bangor | WI | — | ◇ UNVERIFIED |
| SCSternocandlelamp CO LLC | Memphis | TN | — | ◇ UNVERIFIED |
| SLStimson Lumber Company St Maries Mill | Saint Maries | ID | — | ◇ UNVERIFIED |
| SPStp Products Manufacturing CO | Painesville | OH | — | ◇ UNVERIFIED |
| SPStp Products Manufacturing Company | Vandalia | OH | — | ◇ UNVERIFIED |
| SCStruktol CO. of America | Villa Rica | GA | — | ◇ UNVERIFIED |
| SWSuez Wts USA INC | Addison | IL | — | ◇ UNVERIFIED |
| SWSuez Wts USA INC Beaumont - Plant | Beaumont | TX | — | ◇ UNVERIFIED |
| SFSuperior Forest Products LLC | Montezuma | IN | — | ◇ UNVERIFIED |
 Swanson Group Mfg. Llc, Springfield | Springfield | OR | — | ◇ UNVERIFIED |
| SCSyntech Cedar Port | Baytown | TX | — | ◇ UNVERIFIED |
| TCTaylor Chemical, INC. | Taylor | PA | — | ◇ UNVERIFIED |
| TOTeam Oil Tools | Tulsa | OK | — | ◇ UNVERIFIED |
| TITechnic INC | Cranston | RI | — | ◇ UNVERIFIED |
| TITemple Inland Forest Prod Corporation Southwest La Lumber Operations | Dequincy | LA | — | ◇ UNVERIFIED |
| TETexas Electric Cooperatives Treating Div | Jasper | TX | — | ◇ UNVERIFIED |
| TPThomaston Pretreatment Facility | Thomaston | GA | — | ◇ UNVERIFIED |
| TWThomas Wood Preserving INC | Grenada | MS | — | ◇ UNVERIFIED |
| TThunderline-z | Hampstead | NH | — | ◇ UNVERIFIED |
| TPTimber Producers Dewitt Sawmill Division | Dewitt | AR | — | ◇ UNVERIFIED |
| TPTimber Products CO. Limited Partnership | Medford | OR | — | ◇ UNVERIFIED |
| TSTimpie Salt Processing Plant | Grantsville | UT | — | ◇ UNVERIFIED |
| TLTolleson Lumber | Preston | GA | — | ◇ UNVERIFIED |
| TSTri State Lumber Company INC | Fulton | MS | — | ◇ UNVERIFIED |
| TLTroy Lumber Company INC. | Troy | NC | — | ◇ UNVERIFIED |
| TMTroy Manufacturing INC | Burton | OH | — | ◇ UNVERIFIED |
| UWUfp-new Waverly | New Waverly | TX | — | ◇ UNVERIFIED |
| URUfp Real Estate LLC Sterling (former Georgia Pacific Sterling Treating Plant) | Sterling | GA | — | ◇ UNVERIFIED |
| UPUltra Pure Solutions INC | Castroville | CA | — | ◇ UNVERIFIED |
| UIUnited Industries Dba Chemsico | Saint Louis | MO | — | ◇ UNVERIFIED |
| USUnivar Solutions Powder Facility | Waxahachie | TX | — | ◇ UNVERIFIED |
| USUnivar Solutions Ssc Facility | Waxahachie | TX | — | ◇ UNVERIFIED |
| USUnivar Solutions Usa, LLC. Fka Dpc Enterprises, LP | Chattanooga | TN | — | ◇ UNVERIFIED |
| UAUS Army Pine Bluff Arsenal | Pine Bluff | AR | — | ◇ UNVERIFIED |
| UWUS Water Services INC | Cambridge | MN | — | ◇ UNVERIFIED |
| UIUyemura International Corporation | Southington | CT | — | ◇ UNVERIFIED |
| VEVeolia Es Technical Solutions Llc/ Onyx Env Services CO | Henderson | CO | — | ◇ UNVERIFIED |
| VUVesuvius USA Corporation - Cd (1318126134) | Brookpark | OH | — | ◇ UNVERIFIED |
| VTVoltarc Technologies INC | Waterbury | CT | — | ◇ UNVERIFIED |
| WCW2fuel - Crawfordsville Facility | Crawfordsville | IA | — | ◇ UNVERIFIED |
| WCWako Chemicals USA INC | Richmond | VA | — | ◇ UNVERIFIED |
| WCWalling Chemical Company | Sioux Falls | SD | — | ◇ UNVERIFIED |
| WTWater Treatment Specialist INC | Catano | PR | — | ◇ UNVERIFIED |
| WLWestervelt Lumber Moundville, LLC | Moundville | AL | — | ◇ UNVERIFIED |
| WFWest Fraser Angelina | Lufkin | TX | — | ◇ UNVERIFIED |
| WFWest Fraser INC Joyce Mill | Joyce | LA | — | ◇ UNVERIFIED |
| WFWest Fraser Mcdavid Lumber Mill | Mc David | FL | — | ◇ UNVERIFIED |
| WCWestrock Charleston Kraft Llc-summerville | Summerville | SC | — | ◇ UNVERIFIED |
| WCWestrock Coated Board, LLC. - Mahrt Mill | Phenix City | AL | — | ◇ UNVERIFIED |
| WWeyerhaeuser-cfalls | Columbia Falls | MT | — | ◇ UNVERIFIED |
| WWeyerhaeuser-evergreen | Kalispell | MT | — | ◇ UNVERIFIED |
| WNWeyerhaeuser Nr CO - Dodson Division | Dodson | LA | — | ◇ UNVERIFIED |
| WNWeyerhaeuser Nr CO - Holden Wood Products | Holden | LA | — | ◇ UNVERIFIED |
| WNWeyerhaeuser Nr CO Idabel Sawmill | Idabel | OK | — | ◇ UNVERIFIED |
| WNWeyerhaeuser Nr Company | Grayling | MI | — | ◇ UNVERIFIED |
| WNWeyerhaeuser Nr Company | Millport | AL | — | ◇ UNVERIFIED |
| WNWeyerhaeuser Nr Company-dierks Mill | Dierks | AR | — | ◇ UNVERIFIED |
| WNWeyerhaeuser Nr Company - Emerson | Emerson | AR | — | ◇ UNVERIFIED |
| WNWeyerhaeuser Nr Company - Grifton | Grifton | NC | — | ◇ UNVERIFIED |
| WNWeyerhaeuser Nr Company, Mccomb Wood Products | Magnolia | MS | — | ◇ UNVERIFIED |
| WNWeyerhaeuser Nr CO - Philadelphia Lumber | Philadelphia | MS | — | ◇ UNVERIFIED |
| WGW G Sullivan Lumber CO INC | Northport | AL | — | ◇ UNVERIFIED |
| WPWood Preservers INC | Warsaw | VA | — | ◇ UNVERIFIED |
| WRWorld Resources Company | Tolleson | AZ | — | ◇ UNVERIFIED |
| WRW R Grace & CO -conn Grace Const Prod | North Bergen | NJ | — | ◇ UNVERIFIED |
| WRW R Grace & Company Conn Grace Construction Products | Lithonia | GA | — | ◇ UNVERIFIED |
| WRW R Grace & Company Incorporated | Clearfield | UT | — | ◇ UNVERIFIED |
| WWW. W. Wood Products Dudley | Dudley | MO | — | ◇ UNVERIFIED |
| 2E2950 Executive Blvd | Mesquite | TX | 20–99 | ◐ LIKELY ACTIVE |
| 441-348053987-2023 | Prineville | OR | 1–19 | ◐ LIKELY ACTIVE |
| 55913_12970 | Tumwater | WA | 20–99 | ◐ LIKELY ACTIVE |
| 77100 | Sauget | IL | 100–499 | ◐ LIKELY ACTIVE |
| AHAAA Hardwoods | Weyauwega | WI | 20–99 | ◐ LIKELY ACTIVE |
| ABA. Barber Excavating, LLC | Coventry | RI | — | ◐ LIKELY ACTIVE |
| ASAbri Science, LLC | Baltimore | MD | — | ◐ LIKELY ACTIVE |
| ASAbsolute Standards INC | Middletown | CT | — | ◐ LIKELY ACTIVE |
