| SMSpring Metal Recycling,llc | Atlanta | GA | — | ◇ UNVERIFIED |
 Springs Fabrication - Waynoka | Colorado Springs | CO | — | ◇ UNVERIFIED |
| SQS. Q. Fabrication, INC. | Andalusia | AL | — | ◇ UNVERIFIED |
| SLSquare10Source, LLC | Plant City | FL | — | ◇ UNVERIFIED |
| SRS & R Architectural Metals INC | Anaheim | CA | — | ◇ UNVERIFIED |
| SIS.R. Iron, Inc. | Windsor | CA | — | ◇ UNVERIFIED |
| SMSrp Manufacturing | Pleasant Grove | UT | — | ◇ UNVERIFIED |
| SASsc & Aluminum Fabrications INC | West Palm Beach | FL | — | ◇ UNVERIFIED |
| SCS.S. Connections, LLC | Denver | CO | — | ◇ UNVERIFIED |
| SFS&s Fabrication LLC | Cleveland | TX | — | ◇ UNVERIFIED |
| SFS&S Fire Pits | College Park | GA | — | ◇ UNVERIFIED |
| SCSsi Corporation | Julesburg | CO | — | ◇ UNVERIFIED |
| SIS.s. Industries | Collegeville | PA | — | ◇ UNVERIFIED |
| SISs Industries Llc, Dba Salter Spiral Stair | Collegeville | PA | — | ◇ UNVERIFIED |
| STS-square Tube Products, INC. | Commerce City | CO | — | ◇ UNVERIFIED |
| SCSst Custom Fabricators | Okeechobee | FL | — | ◇ UNVERIFIED |
| SPStack-on Products | Wauconda | IL | — | ◇ UNVERIFIED |
| SMStaco Manufacturing Dba Staco Decorative Iron | Hattiesburg | MS | — | ◇ UNVERIFIED |
| SHStage House | Las Vegas | NV | — | ◇ UNVERIFIED |
| SCStaging Concepts INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| SAStainless and Repair, INC. | Marshfield | WI | — | ◇ UNVERIFIED |
| SCStainless Cable & Railing, Inc | Washougal | WA | — | ◇ UNVERIFIED |
| SCStainless Concepts, LLC | Zeeland | MI | — | ◇ UNVERIFIED |
| SSStainless Steel Custom Fabricators | Houston | TX | — | ◇ UNVERIFIED |
| SSStainless Steel Fabricators INC. | La Mirada | CA | — | ◇ UNVERIFIED |
| SSStainless Steel Technologies and Pressure Vessels | Saint Paul | MN | — | ◇ UNVERIFIED |
| SUStainless Unlimited, INC. | Omro | WI | — | ◇ UNVERIFIED |
| SAStairs and Rails INC. | Melrose Park | IL | — | ◇ UNVERIFIED |
| SMStambaugh Metal Inc/hanover | Hanover | PA | — | ◇ UNVERIFIED |
| SIStandard Iron, INC. | Grand Island | NE | — | ◇ UNVERIFIED |
| SIStandard Iron, INC. | Chattanooga | TN | — | ◇ UNVERIFIED |
| SIStandard Iron & Wire Works | Thomson | GA | — | ◇ UNVERIFIED |
| SSStandard Sculpture LLC | Los Angeles | CA | — | ◇ UNVERIFIED |
| SSStandard Sheet Metal CORP. | Norfolk | VA | — | ◇ UNVERIFIED |
| SLStanford Linear Accelerator Center | Stanford | CA | — | ◇ UNVERIFIED |
| SMStanwade Metal Products | Fowler | OH | — | ◇ UNVERIFIED |
| SLStar Lake Fabrication | Litchfield | MN | — | ◇ UNVERIFIED |
| SAStarlite Aluminum Products INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| SMStar Machine | Tulsa | OK | — | ◇ UNVERIFIED |
| SPStar Precision Manufacturing, Inc. | Frederick | CO | — | ◇ UNVERIFIED |
| SIState Industries INC | Franklin | TN | — | ◇ UNVERIFIED |
| SWState Welding & Fabricating, Inc. | Clinton | CT | — | ◇ UNVERIFIED |
| SASteel Acrylic Bathware | Dallas | TX | — | ◇ UNVERIFIED |
| SISteelarc INC. | Griffin | GA | — | ◇ UNVERIFIED |
| SISteelarc, INC | Griffin | GA | — | ◇ UNVERIFIED |
| SCSteel City CORP | Youngstown | OH | — | ◇ UNVERIFIED |
| SCSteel Co, INC | Bloomington | CA | — | ◇ UNVERIFIED |
| SISteelco INC | Denver | CO | — | ◇ UNVERIFIED |
| SDSteel Designs Iron Artwork LLC | Charlotte | NC | — | ◇ UNVERIFIED |
| SDSteel Dreams INC | Eugene | OR | — | ◇ UNVERIFIED |
 Steele Solutions INC | Franklin | WI | — | ◇ UNVERIFIED |
| SFSteel Fab | Abingdon | VA | — | ◇ UNVERIFIED |
| SFSteel Fab a Div. of Samuel Pressure Vessel Group (plant #2) | Abingdon | VA | — | ◇ UNVERIFIED |
| SFSteel Farmer LLC | Saint Francis | WI | — | ◇ UNVERIFIED |
 Steelhead Metal Works | Newark | CA | — | ◇ UNVERIFIED |
| SLSteel Leaf Designs, LLC | Vancouver | WA | — | ◇ UNVERIFIED |
| SMSteel Management Services, INC. | College Park | GA | — | ◇ UNVERIFIED |
| SPSteel Partners, LLC | Las Vegas | NV | — | ◇ UNVERIFIED |
| SPSteel Partners, LLC | Las Vegas | NV | — | ◇ UNVERIFIED |
| SPSteel Partners, LLC | Henderson | NV | — | ◇ UNVERIFIED |
| SPSteel Products, INC | Sarasota | FL | — | ◇ UNVERIFIED |
| SRSteel Ridge Enterprises, Inc. | Ridgely | TN | — | ◇ UNVERIFIED |
| SMSteelrunner Metal Fabrication LLC | Beaverton | OR | — | ◇ UNVERIFIED |
| SSSteel Services, INC. | Macon | GA | — | ◇ UNVERIFIED |
| SSSteel Services, INC. | Norfolk | VA | — | ◇ UNVERIFIED |
 Steel Services Supplies | Toa Baja | PR | — | ◇ UNVERIFIED |
| SSSteel Summit Tennessee | La Vergne | TN | — | ◇ UNVERIFIED |
| SCSteffes Corporation-grand for | Grand Forks | ND | — | ◇ UNVERIFIED |
| SIStellar Industries, INC. | Hastings | NE | — | ◇ UNVERIFIED |
| SIStellar Industries LLC | Bremen | IN | — | ◇ UNVERIFIED |
| SMStellar Machine, INC | Concord | CA | — | ◇ UNVERIFIED |
| STStellar Tent, Inc. | Humble | TX | — | ◇ UNVERIFIED |
| SPStephens Pipe and Steel, LLC | Montoursville | PA | — | ◇ UNVERIFIED |
| SDSterling Dula, a Division of Kane Innovations | Erie | PA | — | ◇ UNVERIFIED |
| SPSterling Plumbing Group INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| SSSterling Steel Company | Portland | OR | — | ◇ UNVERIFIED |
| STSterling Trophy INC | Anoka | MN | — | ◇ UNVERIFIED |
| SLSternschnuppe, LLC | Las Vegas | NV | — | ◇ UNVERIFIED |
| SIStewart Iron Works LLC | Erlanger | KY | — | ◇ UNVERIFIED |
| STStewart Tool Company, INC. | Rancho Cordova | CA | — | ◇ UNVERIFIED |
| SFSt Fabrication | Orting | WA | — | ◇ UNVERIFIED |
| STS T G Machine CORP | Santa Clara | CA | — | ◇ UNVERIFIED |
| SEStiles Enterprises, INC. | Rockaway | NJ | — | ◇ UNVERIFIED |
| SIStiltz Iron, INC | Clarksville | TN | — | ◇ UNVERIFIED |
| SMStirrup Metal Products CORP | Newark | NJ | — | ◇ UNVERIFIED |
| SMSTMW Manufacturing LLC | Taylor | TX | — | ◇ UNVERIFIED |
| SIStocklin Iron INC | Santa Rosa | CA | — | ◇ UNVERIFIED |
| SEStone Enterprises | Omaha | NE | — | ◇ UNVERIFIED |
| SMStone Manufacturing Company | Gardena | CA | — | ◇ UNVERIFIED |
| SMStone Manufacturing Custom Handmade Fireplace Accessories LLC | Buffalo Grove | IL | — | ◇ UNVERIFIED |
| SVStone Valley Welding - Mcalevys Fort Mfg | Huntingdon | PA | — | ◇ UNVERIFIED |
| SPStorage Products Group | Aurora | CO | — | ◇ UNVERIFIED |
| SMStorch Magnetics | Livonia | MI | — | ◇ UNVERIFIED |
| SIStoutco, INC. | Bristol | IN | — | ◇ UNVERIFIED |
| SPSt. Paul's Manor | San Diego | CA | — | ◇ UNVERIFIED |
| SPStraightline Performance Products INC | Forest Lake | MN | — | ◇ UNVERIFIED |
| SIStraitline, INC. | Okarche | OK | — | ◇ UNVERIFIED |
| SMStrathmore Machinery INC | Strathmore | CA | — | ◇ UNVERIFIED |
 Streamline Tool & Engineering LLC | Grain Valley | MO | — | ◇ UNVERIFIED |
| SFStreet Factory Media | Bloomington | MN | — | ◇ UNVERIFIED |
