| RARives and Reynolds Lumber Company, Kosciusko Sawmill | Kosciusko | MS | — | ◇ UNVERIFIED |
| RLR & L Woodcraft INC | Lonsdale | MN | — | ◇ UNVERIFIED |
| RHRobbins Hardwood Flooring,incorporated | Warren | AR | — | ◇ UNVERIFIED |
| RIRobbins INC | Ishpeming | MI | — | ◇ UNVERIFIED |
| RLRobbins Lumber East Baldwin, LLC | East Baldwin Mattocks Station | ME | — | ◇ UNVERIFIED |
| RLRobbins Lumber East Baldwin, LLC - East Baldwin | East Baldwin | ME | — | ◇ UNVERIFIED |
| RLRobbins Lumber Sanford, LLC | Sanford | ME | — | ◇ UNVERIFIED |
| RBRoberts Brothers Lumber CO INC | Ashfield | MA | — | ◇ UNVERIFIED |
| RSRobert S Coleman Lumber CO INC | Culpeper | VA | — | ◇ UNVERIFIED |
| RLRogers Lumber | Orange | TX | — | ◇ UNVERIFIED |
| RRRogue Resources, INC - 2206 Downhill Dr | Steamboat Springs | CO | — | ◇ UNVERIFIED |
| RSRoseland Stair Works INC | Orland Park | IL | — | ◇ UNVERIFIED |
| RLRose Lumber Company LLC | Northport | AL | — | ◇ UNVERIFIED |
| RFRoss Forest Products, Dixie Pine Road Facility | Hattiesburg | MS | — | ◇ UNVERIFIED |
| RARough and Ready Lumber Site | Cave Junction | OR | — | ◇ UNVERIFIED |
| RWR-o-w Window CO | Rockdale | IL | — | ◇ UNVERIFIED |
| RARoy Anderson Lumber CO INC | Tompkinsville | KY | — | ◇ UNVERIFIED |
| RMR&r Millwork INC | Englewood | CO | — | ◇ UNVERIFIED |
| RFRsg Forest Products Molalla Division | Molalla | OR | — | ◇ UNVERIFIED |
| RCRytec CORP | Jackson | WI | — | ◇ UNVERIFIED |
| SLSantiam Lumber | Lebanon | OR | — | ◇ UNVERIFIED |
| SFSaw Finishing | Shipshewana | IN | — | ◇ UNVERIFIED |
| SFSawmill Furniture Company, INC. | Selmer | TN | — | ◇ UNVERIFIED |
| SVSawmill Valley Hardwoods INC | South Gibson | PA | — | ◇ UNVERIFIED |
| SHSchaller Hardwood Lumber Co-yard 2 | Poplar Bluff | MO | — | ◇ UNVERIFIED |
| SLSchroeder Lumber CO LLC | Baton Rouge | LA | — | ◇ UNVERIFIED |
| SLSchwaller Lumber CO INC | Hays | KS | — | ◇ UNVERIFIED |
| SCSchwieter's Companies INC | Hugo | MN | — | ◇ UNVERIFIED |
| SLScotch Lumber Company | Fulton | AL | — | ◇ UNVERIFIED |
| SDScott Davis Chip Company, INC. | Brent | AL | — | ◇ UNVERIFIED |
| SWScott Wood Energy Incorporated | Amelia | VA | — | ◇ UNVERIFIED |
| SLSeaford Lumber Company | Mocksville | NC | — | ◇ UNVERIFIED |
| SLSeago Lumber Company | Mccomb | MS | — | ◇ UNVERIFIED |
| SFSelect Frame Shop INC | Biscoe | NC | — | ◇ UNVERIFIED |
| SMSemling Menke CO INC | Merrill | WI | — | ◇ UNVERIFIED |
| SHSeneca Hardwood Lumber/cranberry | Cranberry | PA | — | ◇ UNVERIFIED |
| SMSeymour Manufacturing Company | Altamont | TN | — | ◇ UNVERIFIED |
| SSShenandoah Shutters | Richmond | VA | — | ◇ UNVERIFIED |
| SLShomaker Lumber Company, INC. | Mckenzie | TN | — | ◇ UNVERIFIED |
| SLShoun Lumber | Butler | TN | — | ◇ UNVERIFIED |
| SIShowood INC | Ecru | MS | — | ◇ UNVERIFIED |
| SLShuqualak Lumber Company Inc, Sawmill Division | Shuqualak | MS | — | ◇ UNVERIFIED |
| SMShutter Mill INC Dba Kirtz Shutters / Stillwater Facility | Stillwater | OK | — | ◇ UNVERIFIED |
| SPShutters Plus INC | Brilliant | AL | — | ◇ UNVERIFIED |
 Sierra Pacific Industries | Central Valley | CA | — | ◇ UNVERIFIED |
| Sierra Pacific Industries | Loyalton | CA | — | ◇ UNVERIFIED |
| Sierra Pacific Industries | Arcata | CA | — | ◇ UNVERIFIED |
| Sierra Pacific Industries | Quincy | CA | — | ◇ UNVERIFIED |
| Sierra Pacific Industries (2042-rd) | Red Bluff | CA | — | ◇ UNVERIFIED |
| SPSierra Pacific Windows | Medford | WI | — | ◇ UNVERIFIED |
| SBSilver Bay Logging Wrangell Sawmill | Wrangell | AK | — | ◇ UNVERIFIED |
| SWSimonton Windows | Pennsboro | WV | — | ◇ UNVERIFIED |
| STSimpson Timber CO Commencement Bay Opr | Tacoma | WA | — | ◇ UNVERIFIED |
| STSimpson Timber CO St Yd Sawmill 5 | Shelton | WA | — | ◇ UNVERIFIED |
| SLSkookum Lumber Plant | Shelton | WA | — | ◇ UNVERIFIED |
| SLSmallwood Lumber CO LLC | Frenchburg | KY | — | ◇ UNVERIFIED |
| SBSmith Brothers Lumber | Hartford | KY | — | ◇ UNVERIFIED |
| SCSmith Cabinet Works | Dyersville | IA | — | ◇ UNVERIFIED |
| SCSmith County | Forest | MS | — | ◇ UNVERIFIED |
| SFSmith Flooring INC | Winona | MO | — | ◇ UNVERIFIED |
| STSmith-turner Tie Company, LLC | Taylor | AR | — | ◇ UNVERIFIED |
| SPSne-stevens Point | Stevens Point | WI | — | ◇ UNVERIFIED |
| SHSnow Hill Chip Mill | Snow Hill | NC | — | ◇ UNVERIFIED |
| SWSomerset Wood Products in | Burnside | KY | — | ◇ UNVERIFIED |
| SCSonny Clnr/ Lower Gwynedd | Spring House | PA | — | ◇ 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 | North Bend | OR | — | ◇ UNVERIFIED |
| SSSouthport Sawmill | Coos Bay | OR | — | ◇ UNVERIFIED |
| SBSpann Brothers Lumber CO INC | White Bluff | TN | — | ◇ UNVERIFIED |
| SCSp Custom Carpentry & Windows INC | Burnsville | MN | — | ◇ UNVERIFIED |
| SWSpecified Woodworking Corporation | Laurel | MD | — | ◇ UNVERIFIED |
| SLSpencer Lumber LLC | Salem | MO | — | ◇ UNVERIFIED |
| SGSpring Grove Timber & Mat LLC | Claremont | VA | — | ◇ UNVERIFIED |
| SRSpring River Lumber CO LLC | Caulfield | MO | — | ◇ UNVERIFIED |
| SWSprings Window Fashions, LLC | Grayling | MI | — | ◇ UNVERIFIED |
| SSSs Stave CO INC | Hopkins County | KY | — | ◇ UNVERIFIED |
| SHStanfill Hardwood Lumber Company, INC. | Culleoka | TN | — | ◇ UNVERIFIED |
| SLStark Lumber CO | Denver | CO | — | ◇ UNVERIFIED |
| SMStar Moulding & Trim CO | Bedford Park | IL | — | ◇ UNVERIFIED |
| SCStella-jones Corporation | Goodwater | AL | — | ◇ UNVERIFIED |
| SRStevenson Rail Siding | Stevenson | AL | — | ◇ UNVERIFIED |
| SFStone Forest Industries Orangeburg | Orangeburg | SC | — | ◇ UNVERIFIED |
| SFStuart Flooring Corporation | Stuart | VA | — | ◇ UNVERIFIED |
| SBStucker Bro's INC. | Ellsinore | MO | — | ◇ UNVERIFIED |
| SMSudberry Millwork INC | Nashville | TN | — | ◇ UNVERIFIED |
| SHSuperior Hardwood Flooring/butler Twp | Drums | PA | — | ◇ UNVERIFIED |
| SPSuperior Profiles | Florence | AL | — | ◇ UNVERIFIED |
| SLSutton Lumber, INC. | Amity | AR | — | ◇ UNVERIFIED |
| SBSwanson Bros. Lumber CO. | Noti | OR | — | ◇ UNVERIFIED |
| SWSynergy Wood Products INC | Sanford | FL | — | ◇ UNVERIFIED |
| TFTacoma Fixture Company | Tacoma | WA | — | ◇ UNVERIFIED |
| TGTarter Gate CO INC - Sawmill | Dunnville | KY | — | ◇ UNVERIFIED |
| TMTcc Materials Rosemount | Rosemount | MN | — | ◇ 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 |
