| 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 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. | Norfolk | VA | — | ◇ UNVERIFIED |
| SSSteel Services, INC. | Macon | GA | — | ◇ 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 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 |
| SRSt Regis Manufacturing LLC Trading /rs Owens | Itasca | IL | — | ◇ UNVERIFIED |
| SSStretch Solutions LLC | Riverside | CA | — | ◇ UNVERIFIED |
| SAStrickland Agriculture Services Incorporated | Spring Hope | NC | — | ◇ UNVERIFIED |
| SOStripmasters of Illinois | Granite City | IL | — | ◇ UNVERIFIED |
| SEStritchCo EVS LLC | Delray Beach | FL | — | ◇ UNVERIFIED |
| SBStrong Built, INC | Waterproof | LA | — | ◇ UNVERIFIED |
| SMSTS Machine Incorporated | Tomball | TX | — | ◇ UNVERIFIED |
| SDStull Design and Manufactruring LLC | Burlington | KY | — | ◇ UNVERIFIED |
| SLSturdy Lantern Manufacturing | Franklin | MA | — | ◇ UNVERIFIED |
| SBSudbury Brass Goods Company Incorporated | Chelsea | MA | — | ◇ UNVERIFIED |
| SBSudbury Brass Goods Company Incorporated | Malden | MA | — | ◇ UNVERIFIED |
| SCSufrank Corporation | Lawton | OK | — | ◇ UNVERIFIED |
| SISulvan Industrial Piping | Perth Amboy | NJ | — | ◇ UNVERIFIED |
| SASun Architectural Products, LLC | Cumming | GA | — | ◇ UNVERIFIED |
| SMSuncoast Metal LLC | Sarasota | FL | — | ◇ UNVERIFIED |
| SASundrella Aluminum Products CO. | Phoenix | AZ | — | ◇ UNVERIFIED |
| SMSunlast Metal, INC. | Palm City | FL | — | ◇ UNVERIFIED |
| SWSunshine Welding, Scallop | Port Canaveral | FL | — | ◇ UNVERIFIED |
| SVSun Valley Bronze, Inc. | Bellevue | ID | — | ◇ UNVERIFIED |
| SCSuperior Contracting New Facility | Salina | KS | — | ◇ UNVERIFIED |
| SDSuperior Derrick Services LLC | New Iberia | LA | — | ◇ UNVERIFIED |
| SESuperior Equipment & Service LLC | Sheridan | WY | — | ◇ UNVERIFIED |
| SFSuperior Fabrication & Welding LLC | Punta Gorda | FL | — | ◇ UNVERIFIED |
| SFSuperior Fabricators INC | Baldwin | LA | — | ◇ UNVERIFIED |
| SGSuperior Grinding and Sales, INC. | Claremore | OK | — | ◇ UNVERIFIED |
| SISuperior Iron INC | Otsego | MN | — | ◇ UNVERIFIED |
| SMSuperior Metals, Inc. | San Jose | CA | — | ◇ UNVERIFIED |
 Superior Steel Products | Kinzers | PA | — | ◇ UNVERIFIED |
| SSSupervoid Systems, LLC | Prattville | AL | — | ◇ UNVERIFIED |
| SSSupreme Service & Specialty CO INC Thru Tubing Div | Broussard | LA | — | ◇ UNVERIFIED |
| SISurcore INC | Denver | CO | — | ◇ UNVERIFIED |
| SBSutter Buttes Ag Distribution | Olivehurst | CA | — | ◇ UNVERIFIED |
| SHSutton Holdings LLC | Bronson | MI | — | ◇ UNVERIFIED |
| SISuwannee Iron Works & Fence, INC. | O Brien | FL | — | ◇ UNVERIFIED |
| SVS & V Fabrications INC | Camden | TN | — | ◇ UNVERIFIED |
| SLSwanky LLC | Melba | ID | — | ◇ UNVERIFIED |
| SLSwedge, LLC | Portland | OR | — | ◇ UNVERIFIED |
| SPSycamore Precision Machine INC | Genoa | IL | — | ◇ UNVERIFIED |
| SMSyer Metal Works LLC | Las Vegas | NV | — | ◇ UNVERIFIED |
| SPSyitz Properties, LLC | Green Bay | WI | — | ◇ UNVERIFIED |
| SMSyltone Marine INC | Gulfport | MS | — | ◇ UNVERIFIED |
