| Physicians Surgical Services NE | Healthcare & Social Assistance | 0 | — | F |
| Physicians Weekly LLC NJ | Information & Media | 3 | $90,667 | — |
| Physicians, Scientists and Engineers for Sustainable and Healthy Energy, Inc. CA | Professional & Technical Services | 1 | $85,573 | — |
| PhysicsX, Inc. NY | Professional & Technical Services | 1 | $200,000 | — |
| Physiotherapy of El Paso P.C. TX | Healthcare & Social Assistance | 1 | $107,661 | — |
| Physis Investment Inc. MA | Finance & Insurance | 1 | $83,450 | — |
| Phytest LLC GA | Healthcare & Social Assistance | 2 | $101,975 | — |
| PhytogenX, Inc. PA | Manufacturing | 0 | — | F |
| PhytoTech Labs KS | Wholesale Trade | 0 | — | D |
| PI Acquisition Group LLC., dba Sterling Technologies Inc. MI | Manufacturing | 0 | — | F |
| PI LABS INC MO | Professional & Technical Services | 6 | $100,790 | — |
| PI Physik Instrumente MA | Manufacturing | 0 | — | F |
| PI Physik Instrumente NH | Manufacturing | 0 | — | A |
| Pi R-Square Solutions LLC GA | Professional & Technical Services | 1 | $91,000 | — |
| PI Roof Maintenance Inc. AR | Construction | 0 | — | F |
| Pi Square Technologies LLC MI | Professional & Technical Services | 14 | $172,304 | — |
| Piala's Nursery & Garden Shop, Inc WI | Administrative & Waste Services | 0 | — | C |
| Piana Nonwovens AZ LLC AZ | Manufacturing | 0 | — | F |
| Piana Nonwovens LLC GA | Manufacturing | 0 | — | F |
| PIANO SERVICE INC CA | Retail Trade | 1 | $45,000 | — |
| Piano Software, Inc. PA | Professional & Technical Services | 1 | $102,710 | — |
| Piantedosi Baking Company MA | Manufacturing | 0 | — | C |
| Piasa Enterprises, Inc. IL | Professional & Technical Services | 0 | — | F |
| Piasecki Steel Construction Corp. NY | Construction | 0 | — | F |
| Piatti Restaurant Company LP, dba Piatti CA | — | 0 | — | — |
| PIAZZA HOTEL MANAGEMENT CA | Accommodation & Food Services | 0 | — | D |
| Piazza Hotel Managment, Hotel Healdsburg CA | — | 0 | — | — |
| Piazza Produce IN | Wholesale Trade | 0 | — | F |
| Piazza Romana LLC dba La Piazza Restaurant CA | — | 0 | — | — |
| PIC CORP NJ | Manufacturing | 0 | — | A |
| PIC Design CT | Manufacturing | 0 | — | A |
| PIC Staffing Solutions WA | Construction | 0 | — | F |
| pic the gift MO | Manufacturing | 0 | — | B |
| PIC Wire & Cable WI | Wholesale Trade | 0 | — | C |
| PIC, Inc. TN | Agriculture & Forestry | 0 | — | F |
| PICA Manufacturing Solutions, Inc. NH | Manufacturing | 2 | $98,592 | A |
| Pica Product Development, NH | Manufacturing | 0 | — | A |
| Pica9, Inc. NY | Professional & Technical Services | 1 | $165,000 | — |
| Picante Restaurant - Maiz Holding Company CA | — | 0 | — | — |
| Picarro, Inc. CA | Manufacturing | 5 | $142,516 | — |
| Picasso Labs Inc. NY | Professional & Technical Services | 1 | $122,000 | — |
| Piccadilly Dental Alliance, Inc. NJ | Administrative & Waste Services | 1 | $58,500 | — |
| Piccadilly Restaurant TN | — | 0 | — | — |
| Picciano & Scahill, P.C. NY | — | 0 | — | — |
| PICCO Coatings Company Inc TX | Manufacturing | 0 | — | F |
| Piccolo Bambini, LLC MA | Educational Services | 1 | $54,330 | — |
| Piccolo Pete's NE | — | 0 | — | — |
| PICK N PULL, INC. TX | Wholesale Trade | 0 | — | F |
| Pick Quick Foods Inc. NY | Retail Trade | 0 | — | B |
| PICK, PACK & HAUL, INC CA | Agriculture & Forestry | 0 | — | F |