| HIHensley Industries, INC. | Dallas | TX | Primary Metal Manufacturing331513 | 100-499 | ● ACTIVE |
Heraeus Precious Metals North America LLC | Santa Fe Springs | CA | Primary Metal Manufacturing331492 | 100-499 | ● ACTIVE |
Heraeus Precious Metals North America, LLC | Wartburg | TN | Primary Metal Manufacturing331492 | 1-19 | ● ACTIVE |
Heritage Die Casting Company, INC. | Denver | CO | Primary Metal Manufacturing331523 | 1-19 | ● ACTIVE |
| HMHeyco Metals INC | Reading | PA | Primary Metal Manufacturing331420 | 20-99 | ● ACTIVE |
| HHH & H Sheet Metal Fabricators | Russellville | KY | Primary Metal Manufacturing331314 | 100-499 | ● ACTIVE |
| HPHigh Plains Steel Services, LLC | Windsor | CO | Primary Metal Manufacturing331210 | 20-99 | ● ACTIVE |
H. Kramer & CO | Chicago | IL | Primary Metal Manufacturing331420 | 100-499 | ● ACTIVE |
Hme INC | Topeka | KS | Primary Metal Manufacturing331210 | 100-499 | ● ACTIVE |
| HCHoeganaes CORP | Watsontown | PA | Primary Metal Manufacturing331110 | 20-99 | ● ACTIVE |
| HEHoneywell Electronic Materials | Fombell | PA | Primary Metal Manufacturing331410 | 20-99 | ● ACTIVE |
| HEHoward Engineering CO | Naugatuck | CT | Primary Metal Manufacturing331511 | 1-19 | ● ACTIVE |
Howmet Castings & Services, INC. | Hampton | VA | Primary Metal Manufacturing331528 | — | ● ACTIVE |
| HCHowmet CORP - Dover Alloy | Dover | NJ | Primary Metal Manufacturing331221 | 500+ | ● ACTIVE |
Hughes Bros., Aircrafters, INC. | South Gate | CA | Primary Metal Manufacturing331492 | — | ● ACTIVE |
Huntington Alloys Corporation | Huntington | WV | Primary Metal Manufacturing331419 | 500+ | ● ACTIVE |
| HCHuron Casting INC | Pigeon | MI | Primary Metal Manufacturing331513 | 100-499 | ● ACTIVE |
Hyatt Die Cast and Engineering Corporation - South | Cypress | CA | Primary Metal Manufacturing331521 | 100-499 | ● ACTIVE |
| HLHybar LLC | Osceola | AR | Primary Metal Manufacturing331110 | 100-499 | ● ACTIVE |
| HAHydro Aluminum Metals USA LLC | Henderson | KY | Primary Metal Manufacturing331314 | 20-99 | ● ACTIVE |
| HEHydro Extrusion Portland, INC. | Portland | OR | Primary Metal Manufacturing331316 | 20-99 | ● ACTIVE |
| HEHydro Extrusion USA LLC - Cressona Facility | Cressona | PA | Primary Metal Manufacturing331314 | — | ● ACTIVE |
Hygrade Metal Moulding Manufacturing CORP. | Bethlehem | PA | Primary Metal Manufacturing331316 | — | ● ACTIVE |
| ILIdaho Laboratories CORP | Idaho Falls | ID | Primary Metal Manufacturing331222 | 20-99 | ● ACTIVE |
| ICId Castings of Illinois LLC | Martinsville | IL | Primary Metal Manufacturing331511 | 20-99 | ● ACTIVE |
| IPIndiana Pickling & Processing Company | Portage | IN | Primary Metal Manufacturing331221 | 20-99 | ● ACTIVE |
Indium Corporation of America, the | Clinton | NY | Chemical Manufacturing325998 | — | ● ACTIVE |
Indium Corporation of America, the | Elk Grove Village | IL | Primary Metal Manufacturing331491 | — | ● ACTIVE |
| IAIndustrial Alloys INC | Indian Trail | NC | Primary Metal Manufacturing331210 | 20-99 | ● ACTIVE |
Innovative Works INC. | Chesterfield | MI | Primary Metal Manufacturing331210 | 20-99 | ● ACTIVE |
Integra-cast, LLC. | New Britain | CT | Primary Metal Manufacturing331524 | 1-19 | ● ACTIVE |
Interamerica Stage, INC. | Sanford | FL | Primary Metal Manufacturing331210 | 100-499 | ● ACTIVE |
Interconnect Solutions CO LLC | Fountain Valley | CA | Primary Metal Manufacturing331513 | 100-499 | ● ACTIVE |
Intramicron, INC | Auburn | AL | Primary Metal Manufacturing331222 | 1-19 | ● ACTIVE |
Invest Cast Incorporated | Columbia Heights | MN | Primary Metal Manufacturing331512 | 100-499 | ● ACTIVE |
Iowa Steel Treating, INC. | Bettendorf | IA | Primary Metal Manufacturing331111 | 1-19 | ● ACTIVE |
| JNJamestown North America, LLC | Houston | TX | Primary Metal Manufacturing331491 | 20-99 | ● ACTIVE |
Jd Machine CORP | Ogden | UT | Primary Metal Manufacturing331315 | 100-499 | ● ACTIVE |
Jersey Shore Steel CO | Jersey Shore | PA | Primary Metal Manufacturing331110 | 100-499 | ● ACTIVE |
J. H. Botts, LLC | Joliet | IL | Primary Metal Manufacturing331110 | 20-99 | ● ACTIVE |
J. K. Pulley Company, INC. | Saint Louis | MO | Primary Metal Manufacturing331511 | 20-99 | ● ACTIVE |
Johnson Brass & Machine Foundry INC | Saukville | WI | Primary Metal Manufacturing331525 | 20-99 | ● ACTIVE |
| JMJohnson Manufacturing Company, INC | Princeton | IA | Chemical Manufacturing325998 | 20-99 | ● ACTIVE |
| JMJohnson Matthey INC. | West Chester | PA | Chemical Manufacturing325998 | 100-499 | ● ACTIVE |
Judd Wire INC. | Turners Falls | MA | Primary Metal Manufacturing331420 | 100-499 | ● ACTIVE |
| JAJupiter Aluminum CORP | Hammond | IN | Primary Metal Manufacturing331315 | 100-499 | ● ACTIVE |
| JAJw Aluminum Company | Goose Creek | SC | Primary Metal Manufacturing331315 | 100-499 | ● ACTIVE |
| KIKaba Ilco Corporation | Rocky Mount | NC | Primary Metal Manufacturing331420 | 100-499 | ● ACTIVE |
| KAKaiser Aluminum Alexco LLC | Chandler | AZ | Primary Metal Manufacturing331316 | 100-499 | ● ACTIVE |
Kaiser Aluminum Fabricated Products, LLC | Florence | AL | Primary Metal Manufacturing331318 | 20-99 | ● ACTIVE |