| SASamtech Automotive Usa, INC. | Carson | CA | — | ● ACTIVE |
Samuel, Son & CO. (usa) INC. | Marinette | WI | — | ● ACTIVE |
S and a Machine Works LLC | Saraland | AL | 20–99 | ● ACTIVE |
San Diego Steel Solutions | Escondido | CA | — | ● ACTIVE |
Sandmeyer Steel CO | Philadelphia | PA | 20–99 | ● ACTIVE |
Sandvik Machining Solutions USA LLC | Mebane | NC | 100–499 | ● ACTIVE |
Sanford Metal Processing CO | Menlo Park | CA | — | ● ACTIVE |
San Jose Delta Associates LLC | Santa Clara | CA | — | ● ACTIVE |
Sanks Machining INC | Staunton | IL | — | ● ACTIVE |
| SCSanta Clara Plating Co., INC. | Santa Clara | CA | 100–499 | ● ACTIVE |
Santa Fe Enterprises INC. | Santa Fe Springs | CA | — | ● ACTIVE |
Sarco Precision, INC. | Mount Vernon | WA | 20–99 | ● ACTIVE |
| SPSargent Pipe Company INC | Broken Bow | NE | 20–99 | ● ACTIVE |
| SMSas Manufacturing LLC | Arvada | CO | — | ● ACTIVE |
| SUSatair Usa, INC. | Medley | FL | — | ● ACTIVE |
Sathorn CORP | Williston | VT | — | ● ACTIVE |
Saturn Fasteners INC | Burbank | CA | — | ● ACTIVE |
Saturn Machine INC. | Brookshire | TX | — | ● ACTIVE |
| SMSaxon Machine & Design, LLC | Mount Airy | MD | — | ● ACTIVE |
S&b Metal Products of Twinsburg, LLC | Twinsburg | OH | 20–99 | ● ACTIVE |
Schaefer Screw Products CO. | Garden City | MI | — | ● ACTIVE |
| SPSchafer Powder Coating, INC. | Whitestown | IN | 20–99 | ● ACTIVE |
Schmidt Industries, INC. | Sun Valley | CA | — | ● ACTIVE |
Schmid Tool & Engineering CORP | Villa Park | IL | — | ● ACTIVE |
Schmidt Tool & Manufacturing CO LLC | Willis | TX | — | ● ACTIVE |
Schmiede Corporation | Tullahoma | TN | — | ● ACTIVE |
Schoen Insulation Services, LLC | Canton | GA | 100–499 | ● ACTIVE |
| SPSchultes Precision Manufacturing INC | Buffalo Grove | IL | 100–499 | ● ACTIVE |
Schutte-buffalo Hammermill, LLC | Buffalo | NY | — | ● ACTIVE |
Schwarze Industries, LLC | Huntsville | AL | — | ● ACTIVE |
Schwoeppe Machine & Tool INC | Marthasville | MO | 20–99 | ● ACTIVE |
Sc Manufacturing Texas LLC | Joshua | TX | — | ● ACTIVE |
Scorpion Protective Coatings INC | Cloverdale | IN | — | ● ACTIVE |
Scotia Engineering, INC | Santa Fe Springs | CA | — | ● ACTIVE |
| SSSc Steel LLC | Taylors | SC | 100–499 | ● ACTIVE |
Scull Manufacturing, LLC | Olean | NY | — | ● ACTIVE |
Sea Box INC | Hillsborough | NJ | 20–99 | ● ACTIVE |
Seatrax INC | Houston | TX | — | ● ACTIVE |
Seattle Boiler Works INC | Seattle | WA | — | ● ACTIVE |
| SBSeaway Bolt and Specials Company | Columbia Station | OH | 20–99 | ● ACTIVE |
| SISelective Industries, INC. | Marine City | MI | 20–99 | ● ACTIVE |
Selectwo Machine Company, INC | Longwood | FL | — | ● ACTIVE |
Sems and Specials, INC. | Rockford | IL | 20–99 | ● ACTIVE |
| STSensata Technologies, INC. | Attleboro | MA | 500+ | ● ACTIVE |
Sentinel Management INC | Lorain | OH | — | ● ACTIVE |
| SISerrano Industries, INC. | Santa Fe Springs | CA | — | ● ACTIVE |
Serrmi Products LLC | Pittsburg | KS | 100–499 | ● ACTIVE |
Service Metal Fabricators, INC. | Williamsburg | VA | — | ● ACTIVE |
| SCServometer CORP | Cedar Grove | NJ | 20–99 | ● ACTIVE |
Setco Sales CO | Hebron | KY | 100–499 | ● ACTIVE |
| SSSeven Stones Projects CORP | Mentor | OH | — | ● ACTIVE |
Sfi, INC. | Orlando | FL | — | ● ACTIVE |
Shade Systems, INC. | Ocala | FL | — | ● ACTIVE |
| SBShamrock Bolt & Screw, LTD. | Dallas | TX | 20–99 | ● ACTIVE |
Shamrock Machining, INC | Spokane Valley | WA | — | ● ACTIVE |
Sharon-cutwell Co., INC. | Belgium | WI | 20–99 | ● ACTIVE |
Sharp Dimension INC. | Fremont | CA | — | ● ACTIVE |
Sharp Tooling Solutions, LLC | Bruce Twp | MI | — | ● ACTIVE |
Sharp Tool Manufacturing, LLC | Ogden | UT | — | ● ACTIVE |
| SMSheet Metal Components INC. | Cartersville | GA | 20–99 | ● ACTIVE |
| SMSheet Metal Engineering | Simi Valley | CA | — | ● ACTIVE |
Sheffield Platers, INC. | San Diego | CA | — | ● ACTIVE |
| SES&h Engineering, INC | Chelmsford | MA | — | ● ACTIVE |
Shepard Steel CO INC | Hartford | CT | — | ● ACTIVE |
Shoemaker Mfg Solutions INC. | Souderton | PA | — | ● ACTIVE |
Show Me Outdoors LLC | Hallsville | MO | — | ● ACTIVE |
S & H Steel Co, LLC | Gilbert | AZ | — | ● ACTIVE |
Shumaker Industries INC | Northumberland | PA | 20–99 | ● ACTIVE |
Shure Manufacturing Corporation | Washington | MO | — | ● ACTIVE |
Sievert Electric Service and Sales Company | Forest Park | IL | 20–99 | ● ACTIVE |
Sifco Applied Surface Concepts, LLC | Norfolk | VA | — | ● ACTIVE |
Silicon Valley Precision, INC. | Livermore | CA | — | ● ACTIVE |
Silvex Incorporated | Westbrook | ME | — | ● ACTIVE |
Sinclair and Sons Custom Welding and Machining Service INC. | Wichita | KS | — | ● ACTIVE |
Singleton CORP | Cleveland | OH | — | ● ACTIVE |
Sisneros Bros. Mfg., LLC. | Belen | NM | — | ● ACTIVE |
Sistersville Tank Works INC | Sistersville | WV | — | ● ACTIVE |
Sjd Machining, INC. | Meadville | PA | 20–99 | ● ACTIVE |
Skid Lift, LLC | Fargo | ND | — | ● ACTIVE |
Sko-die, LLC | Morton Grove | IL | 20–99 | ● ACTIVE |
Skyline Steel, LLC | Armorel | AR | 20–99 | ● ACTIVE |
Skymaster, INC. | City of Industry | CA | — | ● ACTIVE |
S L Chasse Welding & Fabricating, INC. | Hudson | NH | — | ● ACTIVE |
Small Parts Manufacturing Co., INC. | Portland | OR | — | ● ACTIVE |
Smith Brothers Tool Company | Shelby Township | MI | — | ● ACTIVE |
Smith Ironworks INC | Lyerly | GA | — | ● ACTIVE |
| STSnap-on Tools International, LLC | Kenosha | WI | — | ● ACTIVE |
Solar Atmospheres of Michigan, INC. | Chesterfield | MI | 20–99 | ● ACTIVE |
Solar Atmospheres of Western Pennsylvania, INC. | Hermitage | PA | — | ● ACTIVE |
Solar Atmospheres Southeast, INC. | Greenville | SC | 20–99 | ● ACTIVE |
| SMSolon Manufacturing CO | Chardon | OH | — | ● ACTIVE |
Somatex, INC. | Detroit | ME | — | ● ACTIVE |
Sonic Aerospace INC. | Chandler | AZ | — | ● ACTIVE |
Sonic Manufacturing Corporation | Elk Grove Village | IL | — | ● ACTIVE |
Sonoma Industries, INC. | Bell Gardens | CA | — | ● ACTIVE |
Southbridge Sheet Metal Works, INC | Sturbridge | MA | — | ● ACTIVE |
Southern Fabrication Works, LLC | Burley | ID | — | ● ACTIVE |
Southern Machine Works INC | Duncan | OK | 20–99 | ● ACTIVE |
Southern Services & Equipment INC | Saint Bernard | LA | — | ● ACTIVE |
| SSSouthwestern Suppliers INC | Tampa | FL | 20–99 | ● ACTIVE |