| LPLaveycraft Performance Boats INC | Corona | CA | Transportation Equipment Manufacturing336612 | — | ◇ UNVERIFIED |
| LPLeslie's Pool Supply | Corona | CA | Miscellaneous Manufacturing339113 | — | ◇ UNVERIFIED |
| LBListon Brick Company of Corona | Corona | CA | Primary Metal Manufacturing331318 | — | ◇ UNVERIFIED |
| LPLoyalty Products, INC. | Corona | CA | Paper Manufacturing322121 | — | ◇ UNVERIFIED |
| LOLucas Oil Products, INC. | Corona | CA | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| MUMailing US, Inc. | Corona | CA | Apparel Manufacturing315990 | — | ◇ UNVERIFIED |
| MBManhole Builders Incorporated | Corona | CA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| MLMario's Laundromat Ii INC. | Corona | NY | Machinery Manufacturing333312 | — | ◇ UNVERIFIED |
| MFMarko Foam Products INC | Corona | CA | Plastics and Rubber Products Manufacturing326150 | — | ◇ UNVERIFIED |
| MCMaruhachi Ceramics of America INC | Corona | CA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| MTMaterial Transport Services | Corona | CA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| MHMeggitt (north Hollywood), INC | Corona | CA | Machinery Manufacturing333411 | — | ▲ REPORTED CLOSED |
| MGMesa General Engineering INC | Corona | CA | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| MMMethods Machine Tools INC | Corona | CA | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| MLMetro Line Industries INC R | Corona | CA | Machinery Manufacturing333295 | — | ◇ UNVERIFIED |
| MMidcom | Corona | CA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| MMMighty Mover Trailers INC | Corona | CA | Transportation Equipment Manufacturing336211 | — | ◇ UNVERIFIED |
| MCMission Clay Prod | Corona | CA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| MCMonica Circle | Corona | CA | Machinery Manufacturing333912 | — | ◇ UNVERIFIED |
| MAMotion and Flow Control Products INC | Corona | CA | Electrical Equipment, Appliance & Component Manufacturing335314 | — | ◇ UNVERIFIED |
| MEMotive Energy Telecommunication Group INC | Corona | CA | Electrical Equipment, Appliance & Component Manufacturing335312 | — | ◇ UNVERIFIED |
| MPM Paggen Trucking INC | Corona | CA | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| MPMyers Power Products INC | Corona | CA | Electrical Equipment, Appliance & Component Manufacturing335999 | — | ◇ UNVERIFIED |
| NENatel Energy INC | Corona | CA | Machinery Manufacturing333611 | — | ◇ UNVERIFIED |
| NPNational Protein Corporation | Corona | CA | Food Manufacturing311999 | — | ◇ UNVERIFIED |
| NENatus Electric Supply LLC Dba Pacific Electric | Corona | CA | Electrical Equipment, Appliance & Component Manufacturing335313 | — | ◇ UNVERIFIED |
| NDNavcom Defense Electronics, INC | Corona | CA | Computer and Electronic Product Manufacturing334511 | — | ◇ UNVERIFIED |
| NCNordgear CORP. | Corona | CA | Machinery Manufacturing333612 | — | ◇ UNVERIFIED |
| NANorth American Pet Products | Corona | CA | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| NINucast Industries INC | Corona | CA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| OWOldcastle Westile, INC. | Corona | CA | Nonmetallic Mineral Product Manufacturing327122 | — | ◇ UNVERIFIED |
| OPOmega Prod Int | Corona | CA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| OTOn Time Signs CORP. | Corona | NY | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| OIOseda Industries Corporation | Corona | CA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| PCPacific Clay Products | Corona | CA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| PSPamela Susan Hall and Steven William Hall | Corona | CA | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
| PPParedes Properties LLC | Corona | CA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| PHParker Hannifin Corp, Cylinder Div | Corona | CA | Machinery Manufacturing333995 | — | ◇ UNVERIFIED |
| PSPastelito Sourdough Bakery | Corona | CA | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| PSPastelito Sourdough Bakery | Corona | CA | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| PAPauquette Associates, LLC | Corona | CA | Transportation Equipment Manufacturing336413 | — | ◇ UNVERIFIED |
| PVPecos Ventures Industries INC | Corona | CA | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| PIPlastic Industries INC | Corona | CA | Plastics and Rubber Products Manufacturing326112 | — | ◇ UNVERIFIED |
| PEPolara Engineering | Corona | CA | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
 Precise Aerospace Manufacturing | Corona | CA | Machinery Manufacturing333249 | — | ◇ UNVERIFIED |
| PSPrecise Services West | Corona | CA | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| PIPrecision Injection Molding CO | Corona | CA | Furniture and Related Product Manufacturing337215 | — | ▲ REPORTED CLOSED |
| PFPremier Framing, INC | Corona | CA | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| PNPremium Nails | Corona | CA | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
 Prism Aerospace | Corona | CA | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
