| SMSingleton Mouldings | Breckenridge | TX | — | ◇ UNVERIFIED |
| SLSipe Lumber CO | Taylorsville | NC | — | ◇ UNVERIFIED |
| SKS & K Industries INC - Bldg #2 | Lexington | MO | — | ◇ UNVERIFIED |
| SLSkookum Lumber Plant | Shelton | WA | — | ◇ UNVERIFIED |
| SMSkyjack Mfg | Glendale | AZ | — | ◇ 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 |
| SPSmitty's Pallet Service | West Sacramento | CA | — | ◇ UNVERIFIED |
| SHSnow Hill Chip Mill | Snow Hill | NC | — | ◇ UNVERIFIED |
| SSSoil Solutions CO. | Elkhart | IN | — | ◇ UNVERIFIED |
| SDSole Design Cabinetry | Red Boiling Springs | TN | — | ◇ UNVERIFIED |
| SSSol-pro/lilyblad Site | Tacoma | WA | — | ◇ UNVERIFIED |
| SWSomerset Wood Products in | Burnside | KY | — | ◇ UNVERIFIED |
| SPSonoco Products CO. - Baker Division | Granite Falls | NC | — | ◇ UNVERIFIED |
| SPSonoco Products - Temple | Temple | GA | — | ◇ UNVERIFIED |
| SRSonoco Reels | Hartselle | AL | — | ◇ 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 |
| SPSoutheast Pallet Recycling CO | Louisville | KY | — | ◇ UNVERIFIED |
| SWSoutheast Wood Products INC. Dba Ramer Wood Products | Ramer | TN | — | ◇ UNVERIFIED |
| SWSouthern Wood Chips | Jasper | AL | — | ◇ UNVERIFIED |
| SSSouthport Sawmill | North Bend | OR | — | ◇ UNVERIFIED |
| SSSouthport Sawmill | Coos Bay | OR | — | ◇ UNVERIFIED |
| SLSouthside Lumber Company Incorporated | Emporia | VA | — | ◇ UNVERIFIED |
| SLSouthwood Lumber & Pallet INC | Orrville | OH | — | ◇ UNVERIFIED |
| SBSpann Brothers Lumber CO INC | White Bluff | TN | — | ◇ UNVERIFIED |
| SWSpecialized Wood Products | Elkhart | IN | — | ◇ UNVERIFIED |
| SHSpecialty Hardwoods of Indiana, INC. (nappanee Plant) | Nappanee | IN | — | ◇ UNVERIFIED |
| SLSpencer Lumber LLC | Salem | MO | — | ◇ UNVERIFIED |
| SBSpeyside Bourbon Cooperage, INC. (0640010020) | Jackson | OH | — | ◇ UNVERIFIED |
| SBSpeyside Bourbon Cooperage in Virginia INC | Atkins | VA | — | ◇ 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 |
| SMStanton Manufacturing CO Inc-lake Ozark | Lake Ozark | MO | — | ◇ UNVERIFIED |
| SCStella-jones Corporation | Goodwater | AL | — | ◇ UNVERIFIED |
| SPStem Products | Magazine | AL | — | ◇ UNVERIFIED |
| SWStephan Wood Prod INC | Grayling | MI | — | ◇ UNVERIFIED |
| SRStevenson Rail Siding | Stevenson | AL | — | ◇ UNVERIFIED |
| SFStillwater Forest Products | Kalispell | MT | — | ◇ UNVERIFIED |
| SWStillwater Woodworking | Augusta Springs | VA | — | ◇ UNVERIFIED |
| SLStimson Lumber Company, Hauser | Post Falls | ID | — | ◇ UNVERIFIED |
| SLSt. Louis Restoration | Saint Louis | MO | — | ◇ UNVERIFIED |
| SBStock Building Supply INC - Franklin | Denver | CO | — | ◇ UNVERIFIED |
| SFStone Forest Industries Orangeburg | Orangeburg | SC | — | ◇ UNVERIFIED |
