| SIStandard Iron - Wire Works INC | Sauk Centre | MN | — | ◇ UNVERIFIED |
| SIStandard Iron & Wire Works INC - Alex | Alexandria | MN | — | ◇ UNVERIFIED |
 Standard Machine CO | Minneapolis | MN | — | ◇ UNVERIFIED |
| Standard Machine Company, LLC | Scarborough | ME | — | ◇ UNVERIFIED |
| Standard Machine & Tool, INC. | Bristol | CT | — | ◇ UNVERIFIED |
| SPStandard Precision Grinding CO. | Lansing | IL | — | ◇ UNVERIFIED |
| SSStandard Sculpture LLC | Los Angeles | CA | — | ◇ UNVERIFIED |
| SSStandard Sheet Metal CORP. | Norfolk | VA | — | ◇ UNVERIFIED |
| SRStanek Rack CO INC | Detroit | MI | — | ◇ UNVERIFIED |
| SLStanford Linear Accelerator Center | Stanford | CA | — | ◇ UNVERIFIED |
| SBStanley Black - Decker INC Dba Stanley Labounty- W | Two Harbors | MN | — | ◇ UNVERIFIED |
| SEStanley Engineered Fastening | Decorah | IA | — | ◇ UNVERIFIED |
| SIStanton Industrial LLC | Saint George | UT | — | ◇ UNVERIFIED |
| SRStanton Racing, INC. | Nicholasville | KY | — | ◇ UNVERIFIED |
| SIStar Instrument | Orange | CA | — | ◇ UNVERIFIED |
| SMStark's Metal Works Inc. | Menomonie | WI | — | ◇ UNVERIFIED |
| SLStar Lake Fabrication | Litchfield | MN | — | ◇ UNVERIFIED |
| SAStarlite Aluminum Products INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| SMStar Machine | Tulsa | OK | — | ◇ UNVERIFIED |
| SMStar Machine Co. Inc. | Nashua | NH | — | ◇ UNVERIFIED |
| SMStar Manufacturing INC | Blaine | MN | — | ◇ UNVERIFIED |
| SMStar Manufacturing,llc | Orange | CA | — | ◇ UNVERIFIED |
| SPStar Precision Manufacturing, Inc. | Frederick | CO | — | ◇ UNVERIFIED |
| SLStarting Line Products, INC. | Idaho Falls | ID | — | ◇ UNVERIFIED |
| SAStateburg Auto Sales, LLC | Sumter | SC | — | ◇ UNVERIFIED |
| SFState Fabricators | Livonia | MI | — | ◇ UNVERIFIED |
| SIState Industries INC | Franklin | TN | — | ◇ UNVERIFIED |
| SOState of the Arc Welding LLC | Elba | NY | — | ◇ UNVERIFIED |
| SWState Welding & Fabricating, Inc. | Clinton | CT | — | ◇ UNVERIFIED |
| SWState Welding & Fabricating, INC. | Wallingford | CT | — | ◇ UNVERIFIED |
| SCSt. Charles Stamping and Tooling | Saint Charles | IL | — | ◇ UNVERIFIED |
| SCSt. Charles Stamping, INC. | Saint Charles | IL | — | ◇ UNVERIFIED |
| SCST Company, LLC | Angola | IN | — | ◇ UNVERIFIED |
| SSStead Sheet Metal INC. | Aurora | IL | — | ◇ UNVERIFIED |
| STSteam Turbine Alternative Resources | Marion | OH | — | ◇ UNVERIFIED |
| SASteel Acrylic Bathware | Dallas | TX | — | ◇ UNVERIFIED |
| SISteelarc INC. | Griffin | GA | — | ◇ UNVERIFIED |
| SISteelarc, INC | Griffin | GA | — | ◇ UNVERIFIED |
| SBSteel Building Components INC. | Edison | NJ | — | ◇ UNVERIFIED |
| SISteelcad Industrial Services, INC. | Cutler | IL | — | ◇ UNVERIFIED |
| SCSteel City, INC. | Inlet Beach | FL | — | ◇ UNVERIFIED |
| SCSteel City Metal INC | Sterrett | AL | — | ◇ UNVERIFIED |
| SCSteel Co, INC | Bloomington | CA | — | ◇ UNVERIFIED |
| SISteelco INC | Denver | CO | — | ◇ UNVERIFIED |
| SISteelco INC | Bloomington | CA | — | ◇ UNVERIFIED |
| SISteelco, INC. | Matthews | NC | — | ◇ UNVERIFIED |
| SISteelcon INC. | Brighton | CO | — | ◇ UNVERIFIED |
| SCSteel Construction Services | Napa | CA | — | ◇ UNVERIFIED |
| SUSteelCo U.S.A | Chino | CA | — | ◇ UNVERIFIED |
| SCSteel Creations LLC | Saint George | UT | — | ◇ UNVERIFIED |
| SISteeldeck INC. | Los Angeles | CA | — | ◇ UNVERIFIED |
| SDSteel Designs Iron Artwork LLC | Charlotte | NC | — | ◇ UNVERIFIED |
| SDSteel Dimensions | Erie | MI | — | ◇ UNVERIFIED |
| SDSteel Dreams INC | Eugene | OR | — | ◇ UNVERIFIED |
| SESteel Erectors, INC. | Savannah | GA | — | ◇ UNVERIFIED |
| SESteel Erectors, INC. | Savannah | GA | — | ◇ UNVERIFIED |
| SISteeler INC | Seattle | WA | — | ◇ UNVERIFIED |
 Steele Solutions INC | Milwaukee | WI | — | ◇ UNVERIFIED |
| Steele Solutions INC | Franklin | WI | — | ◇ UNVERIFIED |
| SFSteel Fab a Div. of Samuel Pressure Vessel Group (plant #2) | Abingdon | VA | — | ◇ UNVERIFIED |
| SFSteel Fab INC | Jackson | TN | — | ◇ UNVERIFIED |
 Steelfab, INC. | Charlotte | NC | — | ◇ UNVERIFIED |
| Steelfab, INC. | Dublin | GA | — | ◇ UNVERIFIED |
| Steelfab, INC. | Rock Hill | SC | — | ◇ UNVERIFIED |
| Steelfab Inc., Alabama | Roanoke | AL | — | ◇ UNVERIFIED |
| SFSteel Farmer LLC | Saint Francis | WI | — | ◇ UNVERIFIED |
| SFSteelfast Framing System | Mableton | GA | — | ◇ UNVERIFIED |
| SFSteel Forming Systems INC. | Grand Haven | MI | — | ◇ UNVERIFIED |
| SGSteel Girder LLC | Coolidge | AZ | — | ◇ UNVERIFIED |
 Steelhead Metal & Fab LLC | Salem | OR | — | ◇ UNVERIFIED |
| Steelhead Metal Works | Newark | CA | — | ◇ UNVERIFIED |
| SSSteelhead Seamless Gutters INC | Sacramento | CA | — | ◇ UNVERIFIED |
| SKSteel King Industries, INC. | Aurora | IL | — | ◇ UNVERIFIED |
| SLSteel Leaf Designs, LLC | Vancouver | WA | — | ◇ UNVERIFIED |
| SMSteel Management Services, INC. | College Park | GA | — | ◇ UNVERIFIED |
| SNSteel Nutz, Inc. | Murrieta | CA | — | ◇ UNVERIFIED |
| SPSteel Partners, LLC | Henderson | NV | — | ◇ UNVERIFIED |
| SPSteel Partners, LLC | Las Vegas | NV | — | ◇ UNVERIFIED |
| SPSteel Partners, LLC | Las Vegas | NV | — | ◇ UNVERIFIED |
| SPSteel Plate L.l.c. | Tallmadge | OH | — | ◇ UNVERIFIED |
| SPSteel Products INC. | Los Angeles | CA | — | ◇ 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 Specialty Company of Belmont, INC. | Belmont | NC | — | ◇ UNVERIFIED |
| SSSteel Structures America, INC | Berthoud | CO | — | ◇ UNVERIFIED |
| SSSteel Structures of Ohio, LLC (1677010316) | Akron | OH | — | ◇ UNVERIFIED |
| STSteel Tech Division | Piscataway | NJ | — | ◇ UNVERIFIED |
| STSteel Tech Enterprises INC | Woodburn | OR | — | ◇ UNVERIFIED |
| STSteel Tech Partners LLC | Mitchell | IN | — | ◇ UNVERIFIED |
| SISteelway International, L.l.c. | Terrell | TX | — | ◇ UNVERIFIED |
| SISteelway International, LLC | Terrell | TX | — | ◇ UNVERIFIED |
| SISteelwind Industries, Inc | Oak Creek | WI | — | ◇ UNVERIFIED |
| SESteelworks Etc, INC | Oxnard | CA | — | ◇ UNVERIFIED |
| SISteelworks INC | Trenton | MI | — | ◇ UNVERIFIED |
| SFSteelworx Fabrication | Northridge | CA | — | ◇ UNVERIFIED |
| SCSteffes Corporation-grand for | Grand Forks | ND | — | ◇ UNVERIFIED |
