| PFPacifica Foods | Corona | CA | Food Manufacturing311999 | — | ◇ UNVERIFIED |
| PCPolyair Corporation | Corona | CA | Plastics and Rubber Products Manufacturing326112 | — | ◇ UNVERIFIED |
| PCPromach - Corona | Corona | CA | Machinery Manufacturing333993 | — | ◇ UNVERIFIED |
| RRRobertson's Ready Mix | Corona | CA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RRRobertson's Ready Mix | Corona | CA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SRSuperior Ready Mix Concrete | Corona | CA | Apparel Manufacturing315292 | — | ◇ UNVERIFIED |
| WMWk Machine | Corona | CA | Transportation Equipment Manufacturing336399 | — | ◇ UNVERIFIED |
| 11152 | Corona | CA | Fabricated Metal Product Manufacturing332721 | 20-99 | ◐ LIKELY ACTIVE |
| AAA & A Finest | Corona | NY | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| ALAcromil LLC | Corona | CA | Transportation Equipment Manufacturing336413 | — | ◐ LIKELY ACTIVE |
| ACApproved Composite & Metal Technologies, INC. | Corona | CA | Fabricated Metal Product Manufacturing332510 | — | ◐ LIKELY ACTIVE |
| ACAquatic Co. Corona | Corona | CA | Nonmetallic Mineral Product Manufacturing327215 | 1-19 | ◐ LIKELY ACTIVE |
| CSCaliber Sealing Solutions | Corona | CA | Miscellaneous Manufacturing339991 | 1-19 | ◐ LIKELY ACTIVE |
| CCCalifornia Corona 391 N Main Street | Corona | CA | Nonmetallic Mineral Product Manufacturing327991 | 1-19 | ◐ LIKELY ACTIVE |
| CCCalifornia Corona 507 Queensland Circle | Corona | CA | Nonmetallic Mineral Product Manufacturing327991 | 1-19 | ◐ LIKELY ACTIVE |
| CACircor Aerospace & Defense | Corona | CA | Transportation Equipment Manufacturing336413 | 100-499 | ◐ LIKELY ACTIVE |
| CCCma Company, LLC | Corona | CA | Computer and Electronic Product Manufacturing334419 | — | ◐ LIKELY ACTIVE |
| CPConsumer Packaging Corona CAR | Corona | CA | Printing and Related Support Activities323111 | 1-19 | ◐ LIKELY ACTIVE |
| CCorona | Corona | CA | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |
| CBCorona Building | Corona | CA | Fabricated Metal Product Manufacturing332119 | 20-99 | ◐ LIKELY ACTIVE |
| CCCorona CA | Corona | CA | Wood Product Manufacturing321918 | 1-19 | ◐ LIKELY ACTIVE |
| CPCorona Precision Engineering CORP. | Corona | CA | Fabricated Metal Product Manufacturing332510 | — | ◐ LIKELY ACTIVE |
| CPCorrugated Packaging Corona CT | Corona | CA | Paper Manufacturing322211 | 100-499 | ◐ LIKELY ACTIVE |
| CMCrew Metal Fabrication Company | Corona | CA | Fabricated Metal Product Manufacturing332323 | 1-19 | ◐ LIKELY ACTIVE |
| CICulinary Innovation LLC | Corona | CA | Food Manufacturing311991 | 20-99 | ◐ LIKELY ACTIVE |
| EIExtruMed Inc | Corona | CA | Plastics and Rubber Products Manufacturing326199 | 100-499 | ◐ LIKELY ACTIVE |
| FCFiltration Corona | Corona | CA | Machinery Manufacturing333413 | 20-99 | ◐ LIKELY ACTIVE |
| FCFMIC (311 Corona) | Corona | CA | Miscellaneous Manufacturing339992 | 500+ | ◐ LIKELY ACTIVE |
| GBGalasso's Bakery Corona | Corona | CA | Food Manufacturing311812 | 20-99 | ◐ LIKELY ACTIVE |
Jhawar Industries LLC DBA GM Enterprises | Corona | CA | Machinery Manufacturing333414 | 20-99 | ◐ LIKELY ACTIVE |
| LILATICRETE International Inc - Corona | Corona | CA | Chemical Manufacturing325520 | 20-99 | ◐ LIKELY ACTIVE |
| LLibrary | Corona | CA | Furniture and Related Product Manufacturing337127 | 1-19 | ◐ LIKELY ACTIVE |
| LPLighthouse Packaging, A FirmaPak Company | Corona | CA | Plastics and Rubber Products Manufacturing326160 | 20-99 | ◐ LIKELY ACTIVE |
| MAMagellan Aerospace, New York, INC. | Corona | NY | Transportation Equipment Manufacturing336413 | — | ◐ LIKELY ACTIVE |
| MMcpm | Corona | CA | Food Manufacturing311991 | 1-19 | ◐ LIKELY ACTIVE |
| MAMerit Aluminum Inc (Building #2) | Corona | CA | Primary Metal Manufacturing331318 | 100-499 | ◐ LIKELY ACTIVE |
| MEMonster Energy Company | Corona | CA | Beverage and Tobacco Product Manufacturing312111 | 500+ | ◐ LIKELY ACTIVE |
| MEMonster Energy Company - 2455 Anselmo Dr, Corona | Corona | CA | Beverage and Tobacco Product Manufacturing312111 | 500+ | ◐ LIKELY ACTIVE |
| MEMonster Energy Company 2535 Anselmo Dr | Corona | CA | Beverage and Tobacco Product Manufacturing312111 | 500+ | ◐ LIKELY ACTIVE |
Motion Systems Corona | Corona | CA | Machinery Manufacturing333995 | 20-99 | ◐ LIKELY ACTIVE |
| NGNord Gear Corona | Corona | CA | Machinery Manufacturing333612 | 1-19 | ◐ LIKELY ACTIVE |
| NMNuevo Mundo Foods LLC | Corona | NY | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| PPPacific Packaging, LLC | Corona | CA | Machinery Manufacturing333993 | 20-99 | ◐ LIKELY ACTIVE |
| PAPro Armor Manufacturing | Corona | CA | Transportation Equipment Manufacturing336999 | 20-99 | ◐ LIKELY ACTIVE |
| QLQSC LLC - Corona | Corona | CA | Computer and Electronic Product Manufacturing334310 | 1-19 | ◐ LIKELY ACTIVE |
| RARafael Angel Ramos | Corona | CA | Miscellaneous Manufacturing339940 | — | ◐ LIKELY ACTIVE |
| SFSanta Fe Springs Corona | Corona | CA | Machinery Manufacturing333923 | 20-99 | ◐ LIKELY ACTIVE |
| SCSEK Corporation / Ouellette | Corona | CA | Nonmetallic Mineral Product Manufacturing327390 | 1-19 | ◐ LIKELY ACTIVE |
| STSilverado Trail Winery | Corona | CA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| SISpenuzza Inc | Corona | CA | Machinery Manufacturing333241 | 100-499 | ◐ LIKELY ACTIVE |