| SSSg Steel Services CO. | Fort Lauderdale | FL | — | ◇ UNVERIFIED |
| SEShackelford Equipment Company | Plainview | TX | — | ◇ UNVERIFIED |
| SMShackelford Machine INC | Clearwater | KS | — | ◇ UNVERIFIED |
| SVShady Vent Aluminum Products INC. | Atlanta | GA | — | ◇ UNVERIFIED |
| SMShaffer Manufacturing | Urbana | OH | — | ◇ UNVERIFIED |
| SCShaklee CORP | Pleasanton | CA | — | ◇ UNVERIFIED |
| SIShanker Industries | Deer Park | NY | — | ◇ UNVERIFIED |
| SSShank Screw Products CO | Cicero | IL | — | ◇ UNVERIFIED |
| SGShannon Gates INC | Deer Park | NY | — | ◇ UNVERIFIED |
| SVShared Vision LLC | Warren | MI | — | ◇ UNVERIFIED |
| SESharp Erectors LLC | Wentzville | MO | — | ◇ 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 |
| SCShaw Custom Metal Fabrication LLC | Bluffton | SC | — | ◇ UNVERIFIED |
| SWShawn Wallace Dba United Maintenance & Fabrication | Memphis | TN | — | ◇ UNVERIFIED |
| STShearer Tanks, LLC | Arco | ID | — | ◇ UNVERIFIED |
| SMShed Metalworks, LLC | Cunningham | KY | — | ◇ UNVERIFIED |
| SMSheelers Machine Shop | Branson | MO | — | ◇ UNVERIFIED |
| SMSheet Metal Designs | Jamesport | MO | — | ◇ UNVERIFIED |
| SMSheet Metal Engineers, INC. | Martinez | GA | — | ◇ UNVERIFIED |
| SMSheet Metal Forms L.l.c. | Glendale | AZ | — | ◇ UNVERIFIED |
 Sheet Metal Solutions INC | Tangent | OR | — | ◇ UNVERIFIED |
| Sheet Metal Solutions INC | Tangent | OR | — | ◇ UNVERIFIED |
| SMSheet Metal Specialist of Edmond, LLC | Edmond | OK | — | ◇ UNVERIFIED |
| SMSheet Metal Specialties Inc | Bismarck | ND | — | ◇ UNVERIFIED |
| SMSheet Metal Systems, INC | Pinellas Park | FL | — | ◇ UNVERIFIED |
| SMSheet Metal Unlimited PL Inc. | Sunrise | FL | — | ◇ UNVERIFIED |
| SMSheet Metal Works | West Valley City | UT | — | ◇ UNVERIFIED |
| SMSheet Metal Works LLC | Nashville | TN | — | ◇ UNVERIFIED |
| SIShelton Industrial Pattern INC. | Saint Louis | MO | — | ◇ UNVERIFIED |
| SIShemoggun INC Dba Kramer - Moen Machine CO | Duluth | MN | — | ◇ UNVERIFIED |
| SMShenandoah Machine Shop | Shenandoah | VA | — | ◇ UNVERIFIED |
| SMShenandoah Manufacturing Company Incorporated | Harrisonburg | VA | — | ◇ UNVERIFIED |
| SSSheridan Sheet Metal CO | New Hope | MN | — | ◇ UNVERIFIED |
| SPSherman Products Company | Saint Louis | MO | — | ◇ UNVERIFIED |
| SUShick U.s.a. | Kansas City | MO | — | ◇ UNVERIFIED |
| SRShields RE, LLC | Homosassa | FL | — | ◇ UNVERIFIED |
| SCShiloh Cody, LLC | Dayton | OH | — | ◇ UNVERIFIED |
| SIShiloh Industries, LLC | Dover | PA | — | ◇ UNVERIFIED |
| SIShiloh Industries, LLC | New Freedom | PA | — | ◇ UNVERIFIED |
| SSShiloh Services, INC. | Prospect | TN | — | ◇ UNVERIFIED |
| SHS & H Metal Products Inc | Topeka | IN | — | ◇ UNVERIFIED |
| SMShoemaker Manufacturing CO | Cle Elum | WA | — | ◇ UNVERIFIED |
| SRShon Reim | San Jacinto | CA | — | ◇ UNVERIFIED |
| SRShon Reim | Temecula | CA | — | ◇ UNVERIFIED |
| SIShoremaster INC | Fergus Falls | MN | — | ◇ UNVERIFIED |
| SIShouldice Industrial Manufacturers & Contractors INC. | Battle Creek | MI | — | ◇ UNVERIFIED |
| SMShrewsbury Machine & Gear, INC. | Athens | WV | — | ◇ UNVERIFIED |
| SMShunn Machining LLC | Lowell | AR | — | ◇ UNVERIFIED |
| SESiemens Energy, INC | Geismar | LA | — | ◇ UNVERIFIED |
| SMSierra Metal Southwest, LLC | Las Vegas | NV | — | ◇ UNVERIFIED |
| STSierra Torque Converters,dba Nasir Kassa | Ontario | CA | — | ◇ UNVERIFIED |
| SISigmamotor INC. | Middleport | NY | — | ◇ UNVERIFIED |
| SCSignature Cnc LLC | Harrison Township | MI | — | ◇ UNVERIFIED |
| SCSignature Craft, LLC | Saint Louis | MO | — | ◇ UNVERIFIED |
| SFSignature Finishers | Cordele | GA | — | ◇ UNVERIFIED |
| SBSign Builders, INC. | Birmingham | AL | — | ◇ UNVERIFIED |
| SCSii Companies, INC. | Sun Valley | CA | — | ◇ UNVERIFIED |
| SCSilgan Containers Manufac CORP | Kingsburg | CA | — | ◇ UNVERIFIED |
| SLSilva LLC | Lockport | NY | — | ◇ UNVERIFIED |
| SSSilver State Stainless, INC. | Carson City | NV | — | ◇ UNVERIFIED |
| SSSilver Stone Sheet Metal Fabrications Corp. | Brooklyn | NY | — | ◇ UNVERIFIED |
| SSSilver Stone Sheet Metal Fabrications Corp. | Millstone Township | NJ | — | ◇ UNVERIFIED |
| SISimar Industries, INC. | Ocala | FL | — | ◇ UNVERIFIED |
| SSSimmons Stairways INC. | San Jose | CA | — | ◇ UNVERIFIED |
| SISimonds INC | Southbridge | MA | — | ◇ UNVERIFIED |
| STSimple Tool Co, INC. | Gloucester | MA | — | ◇ UNVERIFIED |
| SISinecera INC Dba Crown Precision | Irwindale | CA | — | ◇ UNVERIFIED |
| SESinger Equities INC Dba Triad Bellows Design & Mfg | Anaheim | CA | — | ◇ UNVERIFIED |
 Sinicon Plastics INC | Lenox | MA | — | ◇ UNVERIFIED |
| SMSirota's Machine Company, INC. | New Brighton | PA | — | ◇ UNVERIFIED |
| SESisson Engineering Corp. | Northfield | MA | — | ◇ UNVERIFIED |
| SSSix States Distributors INC | Salt Lake City | UT | — | ◇ UNVERIFIED |
| SHSJK Holdings LLC | Minerva | OH | — | ◇ UNVERIFIED |
| STSJP Tool Inc | West Boylston | MA | — | ◇ UNVERIFIED |
| SMSjs Machine LLC | Fayetteville | TN | — | ◇ UNVERIFIED |
| SJS & J Tube, INC. | Wapello | IA | — | ◇ UNVERIFIED |
| SFSka Fab Steel, LLC | Durango | CO | — | ◇ UNVERIFIED |
| SPSka Precision Machining LLC or Nominee | Bedford | NH | — | ◇ UNVERIFIED |
| SCSketch Consulting INC | North Hills | CA | — | ◇ UNVERIFIED |
| SCSkimcut, Corporation | Portage | IN | — | ◇ UNVERIFIED |
| SKS & K Machine, INC. | West Jordan | UT | — | ◇ UNVERIFIED |
| SMSkousen Manufacturing Limited Liability Company | Rigby | ID | — | ◇ UNVERIFIED |
| SKS & K Powder Coating INC Dba S & K Powder Coating | Bowling Green | KY | — | ◇ UNVERIFIED |
| SMSks Machine, INC. | Wisconsin Rapids | WI | — | ◇ UNVERIFIED |
| SMSkw Manufacturing LLC | Lubbock | TX | — | ◇ UNVERIFIED |
| SESkytek Engineering | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| SASkyway Assets LLC | Fort Worth | TX | — | ◇ UNVERIFIED |
| SMSlabaugh Metal Fab | Bremen | IN | — | ◇ UNVERIFIED |
| SDSlateform Design Studio, LLC | Berlin | WI | — | ◇ UNVERIFIED |
| SMSlatem Metals LLC | Great Falls | MT | — | ◇ UNVERIFIED |
| SPSlate PDO LLC | Tyrone | PA | — | ◇ UNVERIFIED |
| SISlaughter Industrial Fabrication Company, LLC | Houston | TX | — | ◇ UNVERIFIED |
| SWSleeper Welding | Belmont | NH | — | ◇ UNVERIFIED |
| SESl Engineering CO | Huntington Beach | CA | — | ◇ UNVERIFIED |
| SESl Engineering Company | Costa Mesa | CA | — | ◇ UNVERIFIED |
| SMSlh Metals | Corunna | MI | — | ◇ UNVERIFIED |
| SISlidell INC | Owatonna | MN | — | ◇ UNVERIFIED |
