| SSSol-pro/lilyblad Site | Tacoma | WA | — | ◇ UNVERIFIED |
| SWSol Windows and Doors S Corp, Inc. | Bossier City | LA | — | ◇ UNVERIFIED |
| SHSomerset Hardwood Lumber INC | Sloans Valley | KY | — | ◇ UNVERIFIED |
| SUSomething Unique Designs | Littleton | CO | — | ◇ UNVERIFIED |
| SMSommers Millwork Llc* | Drexel | MO | — | ◇ UNVERIFIED |
| SCSonny Clnr/ Lower Gwynedd | Spring House | PA | — | ◇ UNVERIFIED |
| SRSonoco Reels | Hartselle | AL | — | ◇ UNVERIFIED |
| SRSouthbridge Recycling & Disposal Park | Southbridge | MA | — | ◇ UNVERIFIED |
| SWSouthcoast Woodworking, INC. | Mattapoisett | MA | — | ◇ UNVERIFIED |
| SHSoutheastern Hardwoods, Inc. | Swannanoa | NC | — | ◇ UNVERIFIED |
| SASouthern Accent Shutters, INC. | Clayton | NC | — | ◇ UNVERIFIED |
| SCSouthern Cabinets and Millwork | Okolona | MS | — | ◇ UNVERIFIED |
| SCSouthern Crafted, LLC | Fountain Inn | SC | — | ◇ UNVERIFIED |
| SCSouthern Craftsmen Associates, INC. | Lawrenceville | GA | — | ◇ UNVERIFIED |
| SCSouthern Custom Shutters, INC. | Archdale | NC | — | ◇ UNVERIFIED |
| SISouthern Indiana Sawmill LLC | Greenville | IN | — | ◇ UNVERIFIED |
| SLSouthern Lumber & Millwork CORP | Charleston | SC | — | ◇ UNVERIFIED |
| SMSouthern Machinery CORP | Lakeland | FL | — | ◇ UNVERIFIED |
| SMSouthern Moulding LLC | Kennesaw | GA | — | ◇ UNVERIFIED |
| SNSouthern New Hampshire Fire Wood, LLC | Hudson | NH | — | ◇ UNVERIFIED |
| SRSouthern Rail | Villa Rica | GA | — | ◇ UNVERIFIED |
| SSSouthern Solutions, LLC | Nicholasville | KY | — | ◇ UNVERIFIED |
| STSouthern Timber Products LLC | Ruther Glen | VA | — | ◇ UNVERIFIED |
| SWSouthern Walls & Windows | New Orleans | LA | — | ◇ UNVERIFIED |
| SWSouthern Wood Suppliers, INC. | Oglethorpe | GA | — | ◇ UNVERIFIED |
| SFSouthn Fork Woodworks LLC | Fort Lauderdale | FL | — | ◇ UNVERIFIED |
| SWSouthside Workshop Inc. | Brooklyn | NY | — | ◇ UNVERIFIED |
| SSSouth Sound Screen & Mobile Home Supply | Roy | WA | — | ◇ UNVERIFIED |
| SASouthwest Aluminum Systems INC | Chandler | AZ | — | ◇ UNVERIFIED |
| SMSouthwest Mill & Lumber | Sun Valley | CA | — | ◇ UNVERIFIED |
| SMSouthwest Mill & Lumber INC | Sun Valley | CA | — | ◇ UNVERIFIED |
| SMSouthwest Moulding | Sun Valley | CA | — | ◇ UNVERIFIED |
| SRSouthwest Renewable Brown Street Mill | Snowflake | AZ | — | ◇ UNVERIFIED |
| SMSpace Manufacturers Corporation | Geneva | NY | — | ◇ UNVERIFIED |
| SFSpecialized Fibers | Corning | CA | — | ◇ UNVERIFIED |
| SWSpecialized Wood Products | Elkhart | IN | — | ◇ UNVERIFIED |
| SBSpecialty Building Products, INC. | Bossier City | LA | — | ◇ UNVERIFIED |
| SISpecialty, INC. | Homedale | ID | — | ◇ UNVERIFIED |
| SLSpecialty Lumber Company ** Inactive ** | Wilsons Mills | NC | — | ◇ UNVERIFIED |
| SSSpecialty Shutter Systems LLC | Victoria | TX | — | ◇ UNVERIFIED |
| SWSpecialty Wood Mouldings, INC. | Rogers | TX | — | ◇ UNVERIFIED |
| SWSpecialty Wood Products | Lodi | CA | — | ◇ UNVERIFIED |
| SSSpecified Systems, INC. | Washington | PA | — | ◇ UNVERIFIED |
| SWSpecified Woodworking Corporation | Laurel | MD | — | ◇ UNVERIFIED |
| SCSpectrum Custom Design, INC | Desert Hot Springs | CA | — | ◇ UNVERIFIED |
| SESpectrum Energy Georgia, LLC | Adel | GA | — | ◇ UNVERIFIED |
| SWSpeedy Windows Corporation | Brooklyn | NY | — | ◇ UNVERIFIED |
| SLSpencer LLC Monroe | Monroe | WA | — | ◇ UNVERIFIED |
| SCSpencer's Custom Wood LLC | Elgin | TX | — | ◇ UNVERIFIED |
| SOSpirit of the Woods, Inc | Jackman | ME | — | ◇ UNVERIFIED |
| SGSpring Glass and Mirror, LTD. | Spring | TX | — | ◇ UNVERIFIED |
| SWSprings Window Fashions, LLC | Grayling | MI | — | ◇ UNVERIFIED |
| SMSpur Millwork INC. | Marion | IA | — | ◇ UNVERIFIED |
| SMSs Manufacturing & Woodworking | Menlo Park | CA | — | ◇ UNVERIFIED |
| SPS&s Powerlift Doors, LLC | Newton | KS | — | ◇ UNVERIFIED |
| SSS& S Wood Products | Independence | WI | — | ◇ UNVERIFIED |
| SIStairtek INC | Erlanger | KY | — | ◇ UNVERIFIED |
| SIStan's Industrial Manufacturing LLC | Lyndon Station | WI | — | ◇ UNVERIFIED |
| SCStanco Corporation | Baltimore | MD | — | ◇ UNVERIFIED |
| SDStanley Doors Sys | Rancho Cucamonga | CA | — | ◇ UNVERIFIED |
| SFStanley Furniture CO - Hackney Street Warehouse | Lexington | NC | — | ◇ UNVERIFIED |
| SMStarke Millwork INC. | Nazareth | PA | — | ◇ UNVERIFIED |
| SLStark Lumber CO | Denver | CO | — | ◇ UNVERIFIED |
| STStarwood Trim INC | Frisco | TX | — | ◇ UNVERIFIED |
| SLStashwood LLC | San Tan Valley | AZ | — | ◇ UNVERIFIED |
| SAStavola Asphalt CO INC | Old Bridge Twp | NJ | — | ◇ UNVERIFIED |
| SCSt Cloud Window INC | Sauk Rapids | MN | — | ◇ UNVERIFIED |
| SSSteel Shield Doors and More, LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
| STSteel Traditions | Vista | CA | — | ◇ UNVERIFIED |
| SKSteigerwald's Kitchen & Bath, INC. | Grove City | PA | — | ◇ UNVERIFIED |
| SMSteiner & Mateer INC | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| SCStella-jones Corporation | Durant | MS | — | ◇ UNVERIFIED |
| SCStella-jones Corporation Bellingham | Bellingham | WA | — | ◇ UNVERIFIED |
| SPStem Products | Magazine | AL | — | ◇ UNVERIFIED |
| SWStephan Wood Prod INC | Grayling | MI | — | ◇ UNVERIFIED |
| SSStep Solution, LLC | Davie | FL | — | ◇ UNVERIFIED |
 Sterling Site Access Solutions | Lufkin | TX | — | ◇ UNVERIFIED |
| SBSteve Babulas Designer Woodworks | Fort Walton Beach | FL | — | ◇ UNVERIFIED |
| SCStevenson & CO | Baltimore | MD | — | ◇ UNVERIFIED |
| SASteves and Sons Door Company | San Antonio | TX | — | ◇ UNVERIFIED |
| SCStewart Custom Wood Works, INC. | Alpharetta | GA | — | ◇ UNVERIFIED |
| SPStewarts Point Woodworks LLC | Cazadero | CA | — | ◇ UNVERIFIED |
| SFStillwater Forest Products | Kalispell | MT | — | ◇ UNVERIFIED |
| SLStimson Lumber Company, Hauser | Post Falls | ID | — | ◇ UNVERIFIED |
| SLSt. Louis Automatic Door, LLC | Valley Park | MO | — | ◇ UNVERIFIED |
| SWSTL Woodworking Inc. | Saint Louis | MO | — | ◇ UNVERIFIED |
| SWSTL Woodworking Inc. | Saint Louis | MO | — | ◇ UNVERIFIED |
| SIStm Imp and Exp CORP | Upper Saddle River | NJ | — | ◇ UNVERIFIED |
| SPStockton Products | Livermore | CA | — | ◇ UNVERIFIED |
| SWStockton Wood Shavings Company | French Camp | CA | — | ◇ UNVERIFIED |
| SWStock Woodwork | Laredo | TX | — | ◇ UNVERIFIED |
| SCStone Creek Cabinetry & Millworks | Buford | GA | — | ◇ UNVERIFIED |
| SCStone Creek Cabinetry & Millworks | Buford | GA | — | ◇ UNVERIFIED |
| SFStone Forest Industries, INC. | Happy Camp | CA | — | ◇ UNVERIFIED |
| SPStorage Pro Manufacturing LLC | Creola | AL | — | ◇ UNVERIFIED |
| SSStorage Systems, INC | Fresno | CA | — | ◇ UNVERIFIED |
| SFStore Front Properties | Albuquerque | NM | — | ◇ UNVERIFIED |
| SIStratis Industries | Centuria | WI | — | ◇ UNVERIFIED |
| SLStridemark, LLC | Thomasville | NC | — | ◇ UNVERIFIED |
| SIStructural Industries, INC. | Bohemia | NY | — | ◇ UNVERIFIED |
