| SLSkookum Lumber Plant | Shelton | WA | — | ◇ UNVERIFIED |
| SLSmallwood Lumber CO LLC | Frenchburg | KY | — | ◇ UNVERIFIED |
| SBSmith Brothers Lumber | Hartford | KY | — | ◇ UNVERIFIED |
| SCSmith County | Forest | MS | — | ◇ UNVERIFIED |
| SFSmith Flooring INC | Winona | MO | — | ◇ UNVERIFIED |
| STSmith-turner Tie Company, LLC | Taylor | AR | — | ◇ UNVERIFIED |
| SHSnow Hill Chip Mill | Snow Hill | NC | — | ◇ UNVERIFIED |
| SWSomerset Wood Products in | Burnside | KY | — | ◇ UNVERIFIED |
| SSSorrells Sawmill | Sparkman | AR | — | ◇ UNVERIFIED |
| SCSouth Central Pallets, INC D/b/a Smith Pallet Company, INC | Hatfield | AR | — | ◇ UNVERIFIED |
| STSoutheastern Timber Products - Ackerman Mill | Ackerman | MS | — | ◇ UNVERIFIED |
| SWSouthern Wood Chips | Jasper | AL | — | ◇ UNVERIFIED |
| SSSouthport Sawmill | Coos Bay | OR | — | ◇ UNVERIFIED |
| SSSouthport Sawmill | North Bend | OR | — | ◇ UNVERIFIED |
| SLSouthside Lumber Company Incorporated | Emporia | VA | — | ◇ UNVERIFIED |
| SBSpann Brothers Lumber CO INC | White Bluff | TN | — | ◇ UNVERIFIED |
| SHSpecialty Hardwoods of Indiana, INC. (nappanee Plant) | Nappanee | IN | — | ◇ UNVERIFIED |
| SLSpencer Lumber LLC | Salem | MO | — | ◇ UNVERIFIED |
| SGSpring Grove Timber & Mat LLC | Claremont | VA | — | ◇ UNVERIFIED |
| SRSpring River Lumber CO LLC | Caulfield | MO | — | ◇ UNVERIFIED |
| SSSs Stave CO INC | Hopkins County | KY | — | ◇ UNVERIFIED |
| SHStanfill Hardwood Lumber Company, INC. | Culleoka | TN | — | ◇ UNVERIFIED |
| SCStella-jones Corporation | Goodwater | AL | — | ◇ UNVERIFIED |
| SRStevenson Rail Siding | Stevenson | AL | — | ◇ UNVERIFIED |
| SWStillwater Woodworking | Augusta Springs | VA | — | ◇ UNVERIFIED |
| SFStone Forest Industries Orangeburg | Orangeburg | SC | — | ◇ UNVERIFIED |
| SFStrata Forest Products INC | Santa Ana | CA | — | ◇ UNVERIFIED |
| SUStratford Upholstery Company Llc, the | Eupora | MS | — | ◇ UNVERIFIED |
| SBStucker Bro's INC. | Ellsinore | MO | — | ◇ UNVERIFIED |
| SLSutton Lumber, INC. | Amity | AR | — | ◇ UNVERIFIED |
| SBSwanson Bros. Lumber CO. | Noti | OR | — | ◇ UNVERIFIED |
| TRTable Rock Lumber CO & Mfg | Table Rock | NE | — | ◇ UNVERIFIED |
| TGTarter Gate CO INC - Sawmill | Dunnville | KY | — | ◇ UNVERIFIED |
| TJTeal Jones Lumber Services INC | Sumas | WA | — | ◇ UNVERIFIED |
| TMTennessee Mills LLC | Livingston | TN | — | ◇ UNVERIFIED |
| TWTennessee Wood Products INC | Red Boiling Spri | TN | — | ◇ UNVERIFIED |
| TOTen Oaks Dobyns Facility | Stuart | VA | — | ◇ UNVERIFIED |
| TAThe Amelia Lumber Company, Incorporated | Amelia Court House | VA | — | ◇ UNVERIFIED |
| TAThe Ames CO Champion Fac | Champion | PA | — | ◇ UNVERIFIED |
| TBThe Burroughs Ross Colville Company, LLC | Mcminnville | TN | — | ◇ UNVERIFIED |
| TJThe Jim C. Hamer Company, Marlinton | Marlinton | WV | — | ◇ UNVERIFIED |
| TOThe Oak Cooperage LLC | Higbee | MO | — | ◇ UNVERIFIED |
| TSThe Sawmill, INC. | Hohenwald | TN | — | ◇ UNVERIFIED |
| TTThe Tongue & Groove Store | Duluth | MN | — | ◇ UNVERIFIED |
| TFThomasville Furniture Industries INC Plant A/x/v Face | Thomasville | NC | — | ◇ UNVERIFIED |
| TFThomasville Furniture Plant C/m/w/sb | Thomasville | NC | — | ◇ UNVERIFIED |
| TRThompson River Lumber | Thompson Falls | MT | — | ◇ UNVERIFIED |
| TOThree Oaks Lumber CO | Van Buren | MO | — | ◇ UNVERIFIED |
| TLTidewater Lumber | Tappahannock | VA | — | ◇ UNVERIFIED |
| TCTimber Craft INC | New Albany | MS | — | ◇ UNVERIFIED |
