| HEHardcast Enterprises INC | Lancaster | — | ◇ UNVERIFIED |
| HIHartman Industries Dba Commercial Casting Company | Fontana | — | ◇ UNVERIFIED |
| HAHawkins Alum.foundry Dba Vernon Machine & Foundry | Santa Ana | — | ◇ UNVERIFIED |
| HPHero Protective Alloys INC | Fairfield | — | ◇ UNVERIFIED |
| HQHigh Quality Alloys | Santa Fe Springs | — | ◇ UNVERIFIED |
| HGHoly Grail INC | Mountain View | — | ◇ UNVERIFIED |
| HCHowmet Castings | City of Industry | — | ◇ UNVERIFIED |
| HIHummingbirdev INC | Livermore | — | ◇ UNVERIFIED |
| HWH. Wayne Lewis INC Dba Amber Steel CO. | Rialto | — | ◇ UNVERIFIED |
| HDHyatt Die Cast & Engineering C | Sunnyvale | — | ◇ UNVERIFIED |
| HDHyatt Die Cast & Engineering CORP | Garden Grove | — | ◇ UNVERIFIED |
| IMIdeal Metal and Salvage CO | Gardena | — | ◇ UNVERIFIED |
| IMInnovative Metal Designs INC | Westminster | — | ◇ UNVERIFIED |
| IDInternational Die Casting INC | Gardena | — | ◇ UNVERIFIED |
| IEInternational Extrusion CORP | Alhambra | — | ◇ UNVERIFIED |
| IMInterstate Machinery | Santa Fe Springs | — | ◇ UNVERIFIED |
| IMInterstate Material Supply | Orange | — | ◇ UNVERIFIED |
| ILInt'l Light Metals Corporation | Los Angeles | — | ◇ UNVERIFIED |
| ISIronhouse Sanitary District | Oakley | — | ◇ UNVERIFIED |
| ISIronhouse Sanitary District | Bethel Island | — | ◇ UNVERIFIED |
| IRIron Rod | Los Gatos | — | ◇ UNVERIFIED |
| IPIshaana Properties, LLC | Ontario | — | ◇ UNVERIFIED |
| IDIsi Detention Contracting Group INC. | Orange | — | ◇ UNVERIFIED |
| JCJavier Chavez Valencia | Waterford | — | ◇ UNVERIFIED |
| JMJeremy Martin | Santa Cruz | — | ◇ UNVERIFIED |
| JCJerry Carroll Machining INC Dba Electrocut-pacific | San Carlos | — | ◇ UNVERIFIED |
| JEJesus Ernesto Velasquez & Rosa Maria Velasquez, Indivdually and Jointly | San Marcos | — | ◇ UNVERIFIED |
| JIJMZ Investments, LLC | Fontana | — | ◇ UNVERIFIED |
| JLJohn Lee | Sacramento | — | ◇ UNVERIFIED |
| JAJohnson Aluminum Foundry | Cerritos | — | ◇ UNVERIFIED |
| JMJohnson Matthey INC | San Jose | — | ◇ UNVERIFIED |
| JPJohnson Precision Products | Santa Ana | — | ◇ UNVERIFIED |
| JIJohnston International Corporation Dba Plasties | Tustin | — | ◇ UNVERIFIED |
| JLJp Lamborn CO Dba Jpl | Fresno | — | ◇ UNVERIFIED |
| JEJV Explore | Fullerton | — | ◇ UNVERIFIED |
| KSKairos Supply INC | Gardena | — | ◇ UNVERIFIED |
| KAKaiser Aluminum & Chemical CORP | Pleasanton | — | ◇ UNVERIFIED |
 Kaiser Aluminum Fabricated Products, LLC | Los Angeles | — | ◇ UNVERIFIED |
| KCKaiser Commerce Center | Fontana | — | ◇ UNVERIFIED |
| KIKatlan Industries INC | Paramount | — | ◇ UNVERIFIED |
| KBKauth Bros INC | Santa Rosa | — | ◇ UNVERIFIED |
| KSKB Steel & Building Products | Anaheim | — | ◇ UNVERIFIED |
| KSKdr Steel | Rialto | — | ◇ UNVERIFIED |
| KPKearney Pattern Works and Foundry, INC | San Jose | — | ◇ UNVERIFIED |
| KBKearneys' Brass Works INC | Fresno | — | ◇ UNVERIFIED |
| KMKearneys' Metals, Inc., Dba Kmi Dba Kearneys' Dba | Fresno | — | ◇ UNVERIFIED |
| KAKeys Aluminum | La Mirada | — | ◇ UNVERIFIED |
| KSKgel Steel, INC | Riverside | — | ◇ UNVERIFIED |
| KMKhemia Metals INC. | Oakland | — | ◇ UNVERIFIED |
| KLKim Lighting | Ontario | — | ◇ UNVERIFIED |
