| Abbreviation | Definition |
|---|---|
| PLLC | Partnership Limited Liability Corporation |
| PLLC | Professional Limited Liability Corporation |
| PLLC | Professional Limited Liabilty Company |
| PLLP | Professional Limited Liability Partnership |
| PLM | Product launch phase |
| PLM | Product Lifecycle Management |
| PLNG | Petronet LNG Ltd |
| PLP | Product Launch Phase |
| PLPC | Preformed Line Products Company |
| PLPI | Pugad Lawin Pilipinas Inc |
| PLT | Pittsfield Lawn Tractor |
| PLTC | People's Light and Theatre Company |
| PLTCM | Pickling Line Tandem Cold Mill |
| PLTP | Port Lincoln Tuna Processors |
| PLTX | Private Logistics Trading Exchange |
| PLWM | Park Lake Welding & Manufacturing |
| PLXF | Perniagaan Logam Xing Fa Sdn. Bhd. (Malaysian iron manufacturer) |
| PM | Pittsford Monroe |
| PM | Preserve Manufacturer |
| PM | Process Management |