| Abbreviation | Definition |
|---|---|
| PBI | Private Brands, Inc. |
| PBIC | Pacific Beach Investment Corporation |
| PBII | Patriot Bridge and Iron, Inc. |
| PBII | Patriot Bridge and Iron, Incorporated |
| PBK | Photography By Kathy |
| PBL | Pestka Biomedical Laboratories |
| PBL | Private Brand Labeling |
| PBM(s) | Pharmacy Benefit Manager(s) |
| PBMC | Palm Beach Medical Consultants |
| PBN | Professional Beauty Network |
| PBO | People & Business OnLine |
| PBOC | Prudhoe Bay Operations Center |
| PBP | Pine Brook Press |
| PBP | Planet Brodie Productions |
| PBP | Progressive Business Publications |
| PBR | Portland's Best Refreshment |
| PBS | Parker, Broots, and Sydney |
| PBS | Portable Butcher Shop |
| PBS | Public Broadcasting Service |
| PBSC | Polar Bear Software Corporation |