| SRS&b Rolling Inc-thread Rolling | San Fernando | CA | — | ◇ UNVERIFIED |
| SISbs Industries | Tulsa | OK | — | ◇ UNVERIFIED |
| SIScenic Industries, LLC | Chattanooga | TN | — | ◇ UNVERIFIED |
| SSScf Specialty Fabricators, INC. | Calera | AL | — | ◇ UNVERIFIED |
| SMSchaffer Machine INC | Brandon | MN | — | ◇ UNVERIFIED |
| SSSchaffer Specialty Welding, INC. | Milltown | WI | — | ◇ UNVERIFIED |
| SMSchaffner Machine CO. | Berkeley | MO | — | ◇ UNVERIFIED |
| SMSchaffner Machine Company | Saint Louis | MO | — | ◇ UNVERIFIED |
| SLSchearerspeed LLC | Reading | PA | — | ◇ UNVERIFIED |
| SLSchilson Legacy Properties LLC | Goodyear | AZ | — | ◇ UNVERIFIED |
| SLSchlage Lock Company LLC Dba Krieger Specialty Products | Pico Rivera | CA | — | ◇ UNVERIFIED |
| SISchmidt Industries INC | Bay City | MI | — | ◇ UNVERIFIED |
| SMSchmidt Manufacturing INC | Alexandria | MN | — | ◇ UNVERIFIED |
| SMSchmidt-riffer Metalcrafts, INC. | Kansas City | MO | — | ◇ UNVERIFIED |
| SESchram Enterprises, INC. | Melrose Park | IL | — | ◇ UNVERIFIED |
| SISchuette, Inc. | Rothschild | WI | — | ◇ UNVERIFIED |
 Schuff Steel Company | Salt Lake City | UT | — | ◇ UNVERIFIED |
| SMSchuler Machine & Tool Company | Louisville | KY | — | ◇ UNVERIFIED |
| SMSchultz Mfg INC | Oregon City | OR | — | ◇ UNVERIFIED |
| STSchulze Tool Company | Independence | MO | — | ◇ UNVERIFIED |
| SPSchutz Precision Machining LLC | Salem | UT | — | ◇ UNVERIFIED |
| SCSchwab CORP. | Rochester | NY | — | ◇ UNVERIFIED |
| SCSchwab Corporation | Cannelton | IN | — | ◇ UNVERIFIED |
| SFSchwarb Foundry | Warren | MI | — | ◇ UNVERIFIED |
| SISchwarb Industries INC | Troy | MI | — | ◇ UNVERIFIED |
 Schwoeppe Machine & Tool | Marthasville | MO | — | ◇ UNVERIFIED |
| SEScientific Engineering, INC. I | Salina | KS | — | ◇ UNVERIFIED |
| SRScientific Research CO | Portland | OR | — | ◇ UNVERIFIED |
| SRScientific Research CO | Portland | OR | — | ◇ UNVERIFIED |
| STScientific Tool, INC. | New Stanton | PA | — | ◇ UNVERIFIED |
| SIScmg, INC. | Florence | AL | — | ◇ UNVERIFIED |
| SIScoggins Industrial Inc | Sharpsburg | NC | — | ◇ UNVERIFIED |
| SWScoggins Welding & Machine Shop | Petal | MS | — | ◇ UNVERIFIED |
| STScotia Tool and Machine INC. | San Leandro | CA | — | ◇ UNVERIFIED |
| SCScott C. McKenzie | San Jose | CA | — | ◇ UNVERIFIED |
| SEScott Engineering and Procurement, INC. (1431004456) | Loveland | OH | — | ◇ UNVERIFIED |
| SEScott Equipment CO | Arlington | MN | — | ◇ UNVERIFIED |
| SMScott Manufacturing Co., INC. | Grayslake | IL | — | ◇ UNVERIFIED |
| SSScott Systems International, LLC | Marion | OH | — | ◇ UNVERIFIED |
| SEScreaming Eagle Machine Corp. | West Springfield | MA | — | ◇ UNVERIFIED |
| STScreen Tech International | Tulsa | OK | — | ◇ UNVERIFIED |
| SMScrew Machine CO of Elkhorn | Elkhorn | WI | — | ◇ UNVERIFIED |
| SAScroggins a 1 Repair | Troy | AL | — | ◇ UNVERIFIED |
| SDS&D Developing Company, LLC | Kent | WA | — | ◇ UNVERIFIED |
| SMSds Machining INC | Clackamas | OR | — | ◇ UNVERIFIED |
| SFSeaboard Foundry | Johnston, Town of | RI | — | ◇ UNVERIFIED |
| STSeashell Technology | San Diego | CA | — | ◇ UNVERIFIED |
| SASeasons at Apple Valley Memor | Apple Valley | MN | — | ◇ UNVERIFIED |
| SCSeattle City Mercer Corridor | Seattle | WA | — | ◇ UNVERIFIED |
| SMSeco Machine | North Canton | OH | — | ◇ UNVERIFIED |
| SDSecondary Development and Research, INC. | Ridgway | PA | — | ◇ UNVERIFIED |
| SSSecondary Solutions, Inc. | Rockford | IL | — | ◇ UNVERIFIED |
| SPSeco Prods CORP | Washington | MO | — | ◇ UNVERIFIED |
| SISefa Industrial Solutions | Gaston | SC | — | ◇ UNVERIFIED |
| SISeilkop Industries, INC. | Cincinnati | OH | — | ◇ UNVERIFIED |
| SMSei Manufacturing, Incorporated | Cromwell | IN | — | ◇ UNVERIFIED |
| SMSelden Mast INC | Charleston | SC | — | ◇ UNVERIFIED |
| SMSelmco Metal Fabricators, INC. | Sidney | OH | — | ◇ UNVERIFIED |
| SISematco, INC. | Roanoke | VA | — | ◇ UNVERIFIED |
| SISemco INC | Marion | OH | — | ◇ UNVERIFIED |
| SPSemco Precision, INC. | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| SPSemon Production Machining, Inc., Doug | Shreveport | LA | — | ◇ UNVERIFIED |
| SOSenior Operations LLC Dba Senior Aerospace Metal Bellows | Sharon | MA | — | ◇ UNVERIFIED |
| SWSensor Werks | Columbus | OH | — | ◇ UNVERIFIED |
| SSSentry Siren, INC. | Canon City | CO | — | ◇ UNVERIFIED |
| SBSequoia Brick | Lindsay | CA | — | ◇ UNVERIFIED |
| SPSerbin Precision Machining LLC | Saint Peters | MO | — | ◇ UNVERIFIED |
| SSerco | San Diego | CA | — | ◇ UNVERIFIED |
| SMSerley Manufacturing Company INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| SLSerra Laser Precision, LLC | Libertyville | IL | — | ◇ UNVERIFIED |
| SBService Brass & Aluminum Foundry, INC. | Wichita | KS | — | ◇ UNVERIFIED |
| SGService Grinding & Sharpening INC | Blaine | MN | — | ◇ UNVERIFIED |
| STService Tool & Die INC | Henderson | KY | — | ◇ UNVERIFIED |
| SPServitech Precision Machining Corporation | Baldwin Park | CA | — | ◇ UNVERIFIED |
| SMSewell Machine Shop | Dallas | GA | — | ◇ UNVERIFIED |
| SESewer Equipment CO. of Florida, INC. | New Smyrna Beach | FL | — | ◇ UNVERIFIED |
| SESeychelle Environmental Technologies | San Juan Capistrano | CA | — | ◇ UNVERIFIED |
| SGSfc Global Supply Chain, INC. | Pottstown | PA | — | ◇ UNVERIFIED |
| SFS & F Machining and Finishing, INC. | Kenosha | WI | — | ◇ UNVERIFIED |
| SISg Investment America, INC | Vacaville | CA | — | ◇ UNVERIFIED |
| SBSGJB Business Holdings, Inc. | Circle Pines | MN | — | ◇ UNVERIFIED |
| SBSgjb Business Holdings INC Dba Progressive Enginee | Lino Lakes | MN | — | ◇ UNVERIFIED |
| SASGSM Auto Care Corp | Fort Worth | TX | — | ◇ UNVERIFIED |
| SEShackelford Equipment Company | Plainview | TX | — | ◇ UNVERIFIED |
| SMShackelford Machine INC | Clearwater | KS | — | ◇ UNVERIFIED |
| SMShaffer Manufacturing | Urbana | OH | — | ◇ UNVERIFIED |
| SMShapiro Metal Supply Company | Saint Louis | MO | — | ◇ UNVERIFIED |
| SVShared Vision LLC | Warren | MI | — | ◇ UNVERIFIED |
| SGSharp Grinding CO INC | West Springfield | MA | — | ◇ UNVERIFIED |
| SSSharp Steel Rule Die INC. | Emmaus | PA | — | ◇ UNVERIFIED |
| SPShattuck Precision Machining CO INC | Westford | MA | — | ◇ UNVERIFIED |
| SAShaw Alloy Piping Products, LLC | Houma | LA | — | ◇ UNVERIFIED |
| SMShed Metalworks, LLC | Cunningham | KY | — | ◇ UNVERIFIED |
| SMSheelers Machine Shop | Branson | MO | — | ◇ UNVERIFIED |
| SMSheet Metal Specialties LLC | Monroe | LA | — | ◇ UNVERIFIED |
| SMSheffield Metals, International | Denver | CO | — | ◇ UNVERIFIED |
| SFShelco Foundries Div of Gnutti Cado USA | Jacksonville | AL | — | ◇ UNVERIFIED |
| SIShellpro INC | Lockeford | CA | — | ◇ UNVERIFIED |
| SIShemoggun INC Dba Kramer - Moen Machine CO | Duluth | MN | — | ◇ UNVERIFIED |
| SMShenandoah Machine Shop | Shenandoah | VA | — | ◇ UNVERIFIED |
