| LSLgc Standards Vhg Labs | Bedford | NH | — | ◇ UNVERIFIED |
| LML & M Cast Stone INC | Chicago | IL | — | ◇ UNVERIFIED |
| LMLucas Milhaupt INC | Cudahy | WI | — | ◇ UNVERIFIED |
| MIMacdermid INC | Ferndale | MI | — | ◇ UNVERIFIED |
| MLManke Lumber / Superior Wood Treating | Sumner | WA | — | ◇ UNVERIFIED |
| MMapei | Eagan | MN | — | ◇ UNVERIFIED |
| MLMartco LLC - Chopin Mill | Chopin | LA | — | ◇ UNVERIFIED |
| MPMartco Partnership | Morrow | LA | — | ◇ UNVERIFIED |
| MDMasonite Door CORP | Pittsburg | KS | — | ◇ UNVERIFIED |
| MCMasters CO INC. | Wood Dale | IL | — | ◇ UNVERIFIED |
| MCMcfarland Cascade Pole and Lumber CO | Tacoma | WA | — | ◇ UNVERIFIED |
| MCMetal Chem INC | Greenville | SC | — | ◇ UNVERIFIED |
| MSMid South Lumber INC | Meridian | MS | — | ◇ UNVERIFIED |
| MBMiles Bogalusa Mill | Bogalusa | LA | — | ◇ UNVERIFIED |
| MCMiles Chemical CO INC | Anaheim | CA | — | ◇ UNVERIFIED |
| MLM-i LLC | Broussard | LA | — | ◇ UNVERIFIED |
| MPMineral Processing (0388000025) | Crawford Twp. | OH | — | ◇ UNVERIFIED |
| MWMissouri Walnut LLC | Neosho | MO | — | ◇ UNVERIFIED |
| MSMobile Solvent & Supply | Eight Mile | AL | — | ◇ UNVERIFIED |
| MCMonsanto Company | Martinez | CA | — | ◇ UNVERIFIED |
| MFMosaic Fertilizer LLC | Mulberry | FL | — | ◇ UNVERIFIED |
| MGMulti-chem Group | Sonora | TX | — | ◇ UNVERIFIED |
| MGMulti-chem Group Maurice La Facility | Maurice | LA | — | ◇ UNVERIFIED |
| MGMulti-chem Group Roosevelt Ut Facility | Roosevelt | UT | — | ◇ UNVERIFIED |
| MGMulti-chem Group Three Rivers Facility | Three Rivers | TX | — | ◇ UNVERIFIED |
| MEMxi Environmental Services LLC | Abingdon | VA | — | ◇ UNVERIFIED |
| NVNalco Vancouver Plant | Vancouver | WA | — | ◇ UNVERIFIED |
| NINcoc INC (national Chemical & Oil CORP ) | Oak Park | MI | — | ◇ UNVERIFIED |
| NBNew Boston Lumber Mill | New Boston | TX | — | ◇ UNVERIFIED |
| NSNexeo Solutions LLC Fairfield | Fairfield | CA | — | ◇ UNVERIFIED |
| NSNext-gen Supply Group INC | Mansfield | MA | — | ◇ UNVERIFIED |
| NMNof Metal Coatings North America INC | Chardon | OH | — | ◇ UNVERIFIED |
| NFNorman Fox & CO | Industry | CA | — | ◇ UNVERIFIED |
| NGNorthrop Grumman Systems | Brigham City | UT | — | ◇ UNVERIFIED |
| NHNorthwest Hardwoods, INC. - Dailey Yard | Dailey | WV | — | ◇ UNVERIFIED |
| NINox-crete, INC. | Omaha | NE | — | ◇ UNVERIFIED |
| OLOldcastle Lawn & Garden | Tylertown | MS | — | ◇ UNVERIFIED |
| OEOmg Electronic Chemicals INC | Maple Plain | MN | — | ◇ UNVERIFIED |
| OIOptiblend Industries-cambridge | Cambridge | OH | — | ◇ UNVERIFIED |
| OIOptiblend Industries Inc-miles City | Miles City | MT | — | ◇ UNVERIFIED |
| OCOrg Chem Group LLC | Evansville | IN | — | ◇ UNVERIFIED |
| PWPacific Wood Laminates | Brookings | OR | — | ◇ UNVERIFIED |
| PWPacific Wood Preserving of Oregon | Sheridan | OR | — | ◇ UNVERIFIED |
| POPallet One | Chase City | VA | — | ◇ UNVERIFIED |
| PCParamelt CORP | Rosemead | CA | — | ◇ UNVERIFIED |
| PPPeerless Products | Fort Scott | KS | — | ◇ UNVERIFIED |
| PCPetrolite CORP Bakersfield Blend Plant | Bakersfield | CA | — | ◇ UNVERIFIED |
| PDPhilomath Division Sawmill | Philomath | OR | — | ◇ UNVERIFIED |
| PCPico Chemical CORP | Chicago Heights | IL | — | ◇ UNVERIFIED |
| PLPinecrest Lumber | Plumerville | AR | — | ◇ UNVERIFIED |
| PMPineland Manufacturing Complex | Pineland | TX | — | ◇ UNVERIFIED |
| PPPine Products Incorporated | Martinsville | VA | — | ◇ UNVERIFIED |
| PIPlating International INC | Franklin Park | IL | — | ◇ UNVERIFIED |
| PIPlaze INC | Saint Clair | MO | — | ◇ UNVERIFIED |
| PFPlummer Forest Products | Plummer | ID | — | ◇ UNVERIFIED |
| PCPlz CORP | Bridgeview | IL | — | ◇ UNVERIFIED |
| PIPolychemie INC | Pearlington | MS | — | ◇ UNVERIFIED |
| PIPolychemie INC. - Wayne, Mi | Wayne | MI | — | ◇ UNVERIFIED |
| PIPolymerics INC | Kent | OH | — | ◇ UNVERIFIED |
| PDPolyventive ? Dalton South | Dalton | GA | — | ◇ UNVERIFIED |
| PLPolyventive, LLC | Calhoun | GA | — | ◇ UNVERIFIED |
| PFPort Fourchon North | Golden Meadow | LA | — | ◇ UNVERIFIED |
| PLPotlatchdeltic Land and Lumber LLC - St. Maries Lumber Drying Division | Saint Maries | ID | — | ◇ UNVERIFIED |
| PLPotlatchdeltic Land & Lumber LLC. (n5940) | Gwinn | MI | — | ◇ UNVERIFIED |
| PMPotlatchdeltic Manufacturing - Waldo | Waldo | AR | — | ◇ UNVERIFIED |
| PFPotlatch Forest Products CORP. Consumer Products | Lewiston | ID | — | ◇ UNVERIFIED |
| PLPotlatch Land & Lumber LLC | Warren | AR | — | ◇ UNVERIFIED |
| PLPotlatch Land & Lumber LLC - Bemidji Lumbermill | Bemidji | MN | — | ◇ UNVERIFIED |
| PEPpg Euclid Pretreatment & Specialty Prods | Euclid | OH | — | ◇ UNVERIFIED |
| PWProchem Water LLC | Elliston | VA | — | ◇ UNVERIFIED |
| PAPsc Allworth - Birmingham Facility | Birmingham | AL | — | ◇ UNVERIFIED |
| PTPurcell Tire and Service Center | Anchorage | AK | — | ◇ UNVERIFIED |
 Qualichem, INC. | Salem | VA | — | ◇ UNVERIFIED |
 Ques Industries INC | Cleveland | OH | — | ◇ UNVERIFIED |
| RSRefinery Specialties Hempstead Facility | Hempstead | TX | — | ◇ UNVERIFIED |
| RPRemet Pic INC | Utica | NY | — | ◇ UNVERIFIED |
| RCRevlis CORP | Akron | OH | — | ◇ UNVERIFIED |
| RCRevlis Corporation | Akron | OH | — | ◇ UNVERIFIED |
| RLRex Lumber Bristol Florida | Bristol | FL | — | ◇ UNVERIFIED |
| RCRhein Chemie CORP | Chardon | OH | — | ◇ UNVERIFIED |
| RVRoanoke Valley Energy Facility | Weldon | NC | — | ◇ UNVERIFIED |
| RMRobbins Manufacturing CO. | Webster | FL | — | ◇ UNVERIFIED |
| RWRollie Williams Paint Spot INC | Elkhart | IN | — | ◇ UNVERIFIED |
| RLRosboro, Llc, Vaughn Lam. Complex | Veneta | OR | — | ◇ UNVERIFIED |
| RRoseburg | Roseburg | OR | — | ◇ UNVERIFIED |
 Roseburg Forest Products CO. | Dillard | OR | — | ◇ UNVERIFIED |
| RSRossborough Supply Src Div | Cleveland | OH | — | ◇ UNVERIFIED |
| SCSafety-kleen CORP INC - Davenport Facility | Davenport | IA | — | ◇ UNVERIFIED |
| SSSafety-kleen Systems | Cranston | RI | — | ◇ UNVERIFIED |
| SSSafety-kleen Systems -510301 | Minneapolis | MN | — | ◇ UNVERIFIED |
| SKSafety Kleen Systems INC | Des Moines | IA | — | ◇ UNVERIFIED |
| SSSafety-kleen Systems INC | Dolton | IL | — | ◇ UNVERIFIED |
| SSSafety-kleen Systems, INC. - Dolomite, Al Service Center | Dolomite | AL | — | ◇ UNVERIFIED |
| SSSafety-kleen Systems INC - Linden | Linden | NJ | — | ◇ UNVERIFIED |
| SGScotch Gulf Lumber LLC | Fulton | AL | — | ◇ UNVERIFIED |
| SPScotch Plywood CO INC | Fulton | AL | — | ◇ UNVERIFIED |
| SCSelect Chemistry-tyler | Tyler | TX | — | ◇ UNVERIFIED |
| SHSelma Hardwood Flooring, LLC | Tillar | AR | — | ◇ UNVERIFIED |
| STShamrock Technologies INC | Newark | NJ | — | ◇ UNVERIFIED |
| SCShell Chemical LP - Martinez Catayst Plant | Martinez | CA | — | ◇ UNVERIFIED |
