| SKSteigerwald's Kitchen & Bath, INC. | Grove City | PA | — | ◇ UNVERIFIED |
| SCStella-jones Corporation | Durant | MS | — | ◇ UNVERIFIED |
| SCStella-jones Corporation | Goodwater | AL | — | ◇ UNVERIFIED |
| SCStella-jones Corporation Bellingham | Bellingham | WA | — | ◇ UNVERIFIED |
| SPStem Products | Magazine | AL | — | ◇ UNVERIFIED |
| SWStephan Wood Prod INC | Grayling | MI | — | ◇ UNVERIFIED |
| SLSterling Lumber & Supply Company | Goodwater | AL | — | ◇ UNVERIFIED |
 Sterling Site Access Solutions | Lufkin | TX | — | ◇ UNVERIFIED |
| SMSteve Martin Sawmill | Liberty [casey] | KY | — | ◇ UNVERIFIED |
| SRStevenson Rail Siding | Stevenson | AL | — | ◇ UNVERIFIED |
| SASteves and Sons Door Company | San Antonio | TX | — | ◇ UNVERIFIED |
| SCStewart Custom Wood Works, INC. | Alpharetta | GA | — | ◇ UNVERIFIED |
| SLStewart Lumber Company INC | Morristown | TN | — | ◇ UNVERIFIED |
| SPStewarts Point Woodworks LLC | Cazadero | CA | — | ◇ UNVERIFIED |
| SSStice Sawmill, INC. | Bowie | TX | — | ◇ UNVERIFIED |
| SFStillwater Forest Products | Kalispell | MT | — | ◇ UNVERIFIED |
| SLStillwater Lumber, INC. | Charleston | ME | — | ◇ UNVERIFIED |
| SLStimson Lumber - Bonner | Bonner | MT | — | ◇ UNVERIFIED |
| SLStimson Lumber Company Atlas Mill Site | Coeur D Alene | ID | — | ◇ UNVERIFIED |
| SLStimson Lumber Company, Hauser | Post Falls | ID | — | ◇ UNVERIFIED |
| SLStimson Lumber Company Plummer Mill | Plummer | ID | — | ◇ UNVERIFIED |
| SWStimson Washington INC | Colville | WA | — | ◇ UNVERIFIED |
| SWSTL Woodworking Inc. | Saint Louis | MO | — | ◇ UNVERIFIED |
| SMSt Marys Lumber | Saint Marys | PA | — | ◇ UNVERIFIED |
| SWStockton Wood Shavings Company | French Camp | CA | — | ◇ UNVERIFIED |
| SWStock Woodwork | Laredo | TX | — | ◇ UNVERIFIED |
| SFStone Forest Industries, INC. | Happy Camp | CA | — | ◇ UNVERIFIED |
| SFStone Forest Industries Orangeburg | Orangeburg | SC | — | ◇ UNVERIFIED |
| SLStoneville Lumber Company, INC | Stoneville | NC | — | ◇ UNVERIFIED |
| SPStorage Pro Manufacturing LLC | Creola | AL | — | ◇ UNVERIFIED |
| SSStorage Systems, INC | Fresno | CA | — | ◇ UNVERIFIED |
| SLStorm Lumber Acquisition Company | Licking | MO | — | ◇ UNVERIFIED |
| SLStorm Lumber & Pallet CO. | Licking | MO | — | ◇ UNVERIFIED |
| STStorm Trees LLC | Minneapolis | MN | — | ◇ UNVERIFIED |
| SIStratis Industries | Centuria | WI | — | ◇ UNVERIFIED |
| SLStrickland Lumber Co, INC. | Eufaula | AL | — | ◇ UNVERIFIED |
| SLStridemark, LLC | Thomasville | NC | — | ◇ UNVERIFIED |
| SIStructural Industries, INC. | Bohemia | NY | — | ◇ UNVERIFIED |
| SIStructural Insulated Panels Texas | Kerrville | TX | — | ◇ UNVERIFIED |
| SWStuart Wilderness INC | Stuart | VA | — | ◇ UNVERIFIED |
| SPSturdi Products Company | Portland | OR | — | ◇ UNVERIFIED |
| SHSTW Holdings, LLC | Fleetwood | PA | — | ◇ UNVERIFIED |
| SFSuffolk Forest Products INC | Suffolk | VA | — | ◇ UNVERIFIED |
| SFSummit Forest Resources INC. | Markleysburg | PA | — | ◇ UNVERIFIED |
| SSSunbelt Shavings LLC | Shuqualak | MS | — | ◇ UNVERIFIED |
| SLSundance Lumber CO INC | Springfield | OR | — | ◇ UNVERIFIED |
| SLSunnyside Lumber & Barns Professional Limited Liability Company | Madisonville | TN | — | ◇ UNVERIFIED |
| SLSunrise Lumber LLC | Mio | MI | — | ◇ UNVERIFIED |
| SHSunset Hardwoods LLC | Centerville | IN | — | ◇ UNVERIFIED |
| SCSunspot Creative Services | Bellingham | WA | — | ◇ UNVERIFIED |
| SVSun Valley Closet Company, INC | Hailey | ID | — | ◇ UNVERIFIED |
| SFSuperior Forest Products INC | Dorena | OR | — | ◇ UNVERIFIED |
| SHSuperior Hardwoods LLC | Leroy | MI | — | ◇ UNVERIFIED |
| SHSuperior Hardwoods of Ohio, INC. | Mc Arthur | OH | — | ◇ UNVERIFIED |
| SISuperior Industries International, INC. | Johnson City | TN | — | ◇ UNVERIFIED |
| SKSuperior Kiln | Mellen | WI | — | ◇ UNVERIFIED |
| SLSuperior Lumber INC | Tyrone | PA | — | ◇ UNVERIFIED |
| SLSuperiornova, LLC | Arlington | VA | — | ◇ UNVERIFIED |
| SPSuperior Pellet Fuels, LLC | North Pole | AK | — | ◇ UNVERIFIED |
| SSSuperior Shavings, LLC | Comer | GA | — | ◇ UNVERIFIED |
| STSuperior Trim & Door, INC. | Apopka | FL | — | ◇ UNVERIFIED |
| SWSuperior Wood Components, INC. | Troy | AL | — | ◇ UNVERIFIED |
| SLSure-Cut LLC | East Jordan | MI | — | ◇ UNVERIFIED |
| SCSustainable Casework Industries | Deerfield Beach | FL | — | ◇ UNVERIFIED |
| SBSutton Brothers Lumber | Tennga | GA | — | ◇ UNVERIFIED |
| SLSuwanee Lumber Company One, INC. | Cross City | FL | — | ◇ UNVERIFIED |
| SCSwan & CO Innovations LLC | Charlotte | NC | — | ◇ UNVERIFIED |
| SBSwanson Bark and Wood Products | Longview | WA | — | ◇ UNVERIFIED |
| SBSwanson Big Timber INC. | Vinton | IA | — | ◇ UNVERIFIED |
| SBSwanson Bros. Lumber CO. | Noti | OR | — | ◇ UNVERIFIED |
 Swanson Group Mfg LLC | Springfield | OR | — | ◇ UNVERIFIED |
| Swanson Group Mfg LLC | Glendale | OR | — | ◇ UNVERIFIED |
| SSSwartzentruber Sawmill Company | Hartly | DE | — | ◇ UNVERIFIED |
| SPSykes Post Processing | Elkin | NC | — | ◇ UNVERIFIED |
| TPTabco Precision | Fallbrook | CA | — | ◇ UNVERIFIED |
| TETak Enterprises, INC. | Kermit | WV | — | ◇ UNVERIFIED |
| TLTAK Lumber LLC | Punxsutawney | PA | — | ◇ UNVERIFIED |
| TWTalco Woodcrafters INC | Talco | TX | — | ◇ UNVERIFIED |
| TPTali Pak Lumber Services LLC | Hopland | CA | — | ◇ UNVERIFIED |
| TLTallahatchie Lumber LLC | Charleston | MS | — | ◇ UNVERIFIED |
| TSTallent Sawmill | Rainbow City | AL | — | ◇ UNVERIFIED |
| TLTallon Lumber, INC. | Canaan | CT | — | ◇ UNVERIFIED |
| TITalon, Incorporated | Leesburg | VA | — | ◇ UNVERIFIED |
| TMTamarack Mill LLC | Kooskia | ID | — | ◇ UNVERIFIED |
| TMTamarack Mills | Council | ID | — | ◇ UNVERIFIED |
| TTTampa Truss Company, LLC | Plant City | FL | — | ◇ UNVERIFIED |
| TTTanner Timber Services, LLC | Kountze | TX | — | ◇ UNVERIFIED |
| TGTarter Gate CO INC - Sawmill | Dunnville | KY | — | ◇ UNVERIFIED |
| TPTasler Pallet INC. | Marietta | OK | — | ◇ UNVERIFIED |
| TSTate Stclair Enterprises LLC | Wolfforth | TX | — | ◇ UNVERIFIED |
| TCTaylor-ramsey Corporation | Big Island | VA | — | ◇ UNVERIFIED |
| TCTaylor-ramsey Corporation | Huddleston | VA | — | ◇ UNVERIFIED |
| TCT C Catlett & Sons Lumber CO INC | Fredericksburg | VA | — | ◇ UNVERIFIED |
| TCT C Catlett & Sons Lumber CO INC | Spotsylvania | VA | — | ◇ UNVERIFIED |
| TPTcc Pennwest, LLC | Emlenton | PA | — | ◇ UNVERIFIED |
| TNTcr Nj Pa Properties | Riverdale Boro | NJ | — | ◇ UNVERIFIED |
| TWT.c. Woods, LLC | Louisville | CO | — | ◇ UNVERIFIED |
| TETDE Enterprises, Inc. | Wolverine Lake | MI | — | ◇ UNVERIFIED |
| TDT & D Timber Products | Biddeford | ME | — | ◇ UNVERIFIED |
| TDT & D Timber Products, LLC | Lyman | ME | — | ◇ UNVERIFIED |
