Oertel Metal Works, INC. | Davenport | IA | Primary Metal Manufacturing331221 | 20-99 | ● ACTIVE |
| OCOhio Coatings CO. | Yorkville | OH | Primary Metal Manufacturing331111 | 20-99 | ● ACTIVE |
Oliver & Dahlman Equipment Co., INC. | Elkton | FL | Primary Metal Manufacturing331210 | — | ● ACTIVE |
| OWOpta Walkerton | Walkerton | IN | Nonmetallic Mineral Product Manufacturing327410 | 20-99 | ● ACTIVE |
| OIOrrvilon, INC | Orrville | OH | Primary Metal Manufacturing331313 | 100-499 | ● ACTIVE |
Pac Foundries, INC. | Port Hueneme | CA | Primary Metal Manufacturing331512 | — | ● ACTIVE |
Pacific Corrugated Pipe Company LLC | Fontana | CA | Plastics and Rubber Products Manufacturing326122 | — | ● ACTIVE |
Pac - Rancho, INC. | Rancho Cucamonga | CA | Primary Metal Manufacturing331513 | — | ● ACTIVE |
Pbm Supply & Mfg. INC. | Chico | CA | Primary Metal Manufacturing331411 | — | ● ACTIVE |
Pcc Rollmet, INC | Irvine | CA | Primary Metal Manufacturing331210 | — | ● ACTIVE |
Perryman CO | Houston | PA | Primary Metal Manufacturing331491 | — | ● ACTIVE |
Phb INC | Fairview | PA | Primary Metal Manufacturing331521 | — | ● ACTIVE |
| PIPmx Industries, INC. | Cedar Rapids | IA | Primary Metal Manufacturing331420 | 100-499 | ● ACTIVE |
| PLPompanette, LLC | Charlestown | NH | Primary Metal Manufacturing331524 | — | ● ACTIVE |
Portsmouth Lumber Corporation | Portsmouth | VA | Primary Metal Manufacturing331511 | — | ● ACTIVE |
Prairie View Industries, INC. | Fairbury | NE | Primary Metal Manufacturing331319 | — | ● ACTIVE |
| PCPrecision Castings of Tennessee, INC. | Gallatin | TN | Primary Metal Manufacturing331512 | 20-99 | ● ACTIVE |
| PMPrecision Marshall Steel | Washington | PA | Primary Metal Manufacturing331210 | 20-99 | ● ACTIVE |
Prl Industries INC | Lebanon | PA | Primary Metal Manufacturing331513 | 100-499 | ● ACTIVE |
Production Pattern and Foundry CO INC | Mound House | NV | Primary Metal Manufacturing331524 | 20-99 | ● ACTIVE |
Profile Extrusion Company | Phoenix | AZ | Primary Metal Manufacturing331318 | 20-99 | ● ACTIVE |
| RAReading Alloys, LLC | Robesonia | PA | Primary Metal Manufacturing331110 | 100-499 | ● ACTIVE |
| RARec Advanced Silicon Materials LLC | Butte | MT | Chemical Manufacturing325180 | 100-499 | ● ACTIVE |
R. Kern Engineering & Manufacturing CORP. | Chino | CA | Primary Metal Manufacturing331513 | — | ● ACTIVE |
| RIRlm Industries INC | Oxford | MI | Primary Metal Manufacturing331512 | — | ● ACTIVE |
Rotor Clip Company, INC. | Somerset | NJ | Primary Metal Manufacturing331222 | — | ● ACTIVE |
Saber Steel LLC | Millington | TN | Primary Metal Manufacturing331221 | 20-99 | ● ACTIVE |
| SMSabin Metal CORP | Scottsville | NY | Primary Metal Manufacturing331419 | 100-499 | ● ACTIVE |
| SASamtech Automotive Usa, INC. | Carson | CA | Primary Metal Manufacturing331319 | — | ● ACTIVE |
Scicast International Incorporated | Bechtelsville | PA | Primary Metal Manufacturing331523 | 20-99 | ● ACTIVE |
| SIScm Industries LLC | Prince George | VA | Primary Metal Manufacturing331314 | 100-499 | ● ACTIVE |
| SAScottsboro Aluminum Industries | Scottsboro | AL | Primary Metal Manufacturing331313 | 1-19 | ● ACTIVE |
Sculpture Arts Atelier, LLC | Tempe | AZ | Primary Metal Manufacturing331529 | 20-99 | ● ACTIVE |
Seacast INC | Tulalip | WA | Primary Metal Manufacturing331511 | — | ● ACTIVE |
Seah Superalloy Technologies LLC | Temple | TX | Primary Metal Manufacturing331410 | 20-99 | ● ACTIVE |
Sessa Manufacturing & Welding | Ventura | CA | Primary Metal Manufacturing331492 | — | ● ACTIVE |
| SSShawnee Specialties INC. | Eau Claire | MI | Primary Metal Manufacturing331522 | — | ● ACTIVE |
| SESiemens Energy, INC. | Gibsonton | FL | Primary Metal Manufacturing331512 | 100-499 | ● ACTIVE |
| SASierra Alloys Company | Irwindale | CA | Primary Metal Manufacturing331221 | 20-99 | ● ACTIVE |
Sierra Sheet and Plate, INC. | Covington | GA | Primary Metal Manufacturing331491 | 20-99 | ● ACTIVE |
Sigmund Cohn CORP. | Mount Vernon | NY | Primary Metal Manufacturing331491 | — | ● ACTIVE |
| SCSilver City Aluminum | Taunton | MA | Primary Metal Manufacturing331311 | 20-99 | ● ACTIVE |
Skyline Steel, LLC | Armorel | AR | Primary Metal Manufacturing331210 | 20-99 | ● ACTIVE |
Smith Ironworks INC | Lyerly | GA | Primary Metal Manufacturing331210 | — | ● ACTIVE |
| SISolidiform, INC | Fort Worth | TX | Primary Metal Manufacturing331524 | — | ● ACTIVE |
Special Power Sources LLC | Alliance | OH | Primary Metal Manufacturing331513 | — | ● ACTIVE |
Sp Manufacturing INC | Livermore | CA | Primary Metal Manufacturing331513 | — | ● ACTIVE |
Spuncast INC | Watertown | WI | Primary Metal Manufacturing331511 | — | ● ACTIVE |
Ssab Alabama INC | Axis | AL | Primary Metal Manufacturing331110 | — | ● ACTIVE |
Ssab Enterprises LLC | Mobile | AL | Primary Metal Manufacturing331110 | 100-499 | ● ACTIVE |