| SOSalem OR - Microflect | Salem | OR | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SASan Antonio Masonry and Steel (SAM2) | Converse | TX | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
Sauer Structural, LLC | Oak Hill | FL | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SMSchock Manufacturing LLC | Owasso | OK | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SISchoonover Industries | Ashland | OH | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SSScion Steel - Capitol | Livonia | MI | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SSSefton Steel, LP. | Houston | TX | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SFSeguin Fabricators LTD | Seguin | TX | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SDSeneca Dairy Systems, LLC. | Romulus | NY | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SSSentry Steel, Inc. | Louisville | KY | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SISharp Iron Manufacturing - Reilly Road | Wichita Falls | TX | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SMSignal Machine Company, Inc. | Ringgold | GA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SRSimpson Reinforcing Inc | Arnold | PA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SSSimpson Strong-Tie (Inver Grove Heights, MN) | Inver Grove Heights | MN | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SESJ Eligius | San Jose | CA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SSSkyce Steel, INC. | Phoenix | AZ | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SNS & N Machine & Fabricating INC. | Rothbury | MI | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SESnyder Engineering, Inc. | Columbia | MO | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SSommermeyer | Houston | TX | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SBSouth Bay Welding | El Cajon | CA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SRSouthern Rebar & Supplies | Knoxville | TN | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| STSouthern Tech Fab | Donna | TX | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SSSouthside Steel | Zebulon | GA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SSSouthwest Steel Arizona Shop | El Mirage | AR | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SSSouthwest Steel Arizona Shop | El Mirage | AZ | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SFSpecialty Fabrication LLC | Lakeland | FL | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SISpecSys Inc | Granite Falls | MN | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SISpecSys Inc Prentice | Prentice | WI | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SESPI Eugene Fab Shop | Eugene | OR | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SJSST - Jacksonville | Jacksonville | FL | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SSStaley Steel, LLC | Pilot Point | TX | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SWStandard Welding & Steel Products Inc | Medina | OH | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SMStarr Manufacturing, Inc. | Vienna | OH | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SSteelHearn | Lincoln | NE | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SISteel It, LLC | Cincinnati | OH | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SPSteel Plate (Atlanta) | Pendergrass | GA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SLSteelPro LLC. | Memphis | TN | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SCStructural Components Corporation | Green Bay | WI | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SBStupp Bros., Inc | St Louis | MO | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SISturdi Iron | Frankfort | IL | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SSSuperior Steel LLC | Denham Springs | LA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SFSyracuse Fabrication | Phoenix | NY | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| TRTEEMS RIG Manufacturing | Amarillo | TX | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| TDThe Dover Tank and Plate Company | Dover | OH | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| TEThermal Engineering of Arizona, Inc. | Tucson (Pima) | AZ | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| TTThe Troublebshooters | Houston | TX | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| TWThe Wm. Lang & Sons Co. | Cincinnati | OH | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| TRThirteen RF, Inc. | Murphysboro | IL | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| TITitan Industries, Inc. | Deer Creek | IL | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| TETitusville Enterprises, Inc. | Franklin | PA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |