| 1 | PEG | Pelangi Air Sdn. Bhd. | IATA: 9P, Callsign: Pelangi, Designator 9P recalled by IATA | MAL | AVCODES |
| 2 | PEG | Pegasus Elite Aviation | Callsign: Pegjet, | USA | AVCODES |
| 3 | PEG | Prignitzer Eisenbahn-Gesellschaft | Putlitz | D | privat-bahn.de |
| 4 | PEG | Passauer Eisenbahn GmbH | Passau | D | privat-bahn.de |
| 5 | PEG | Prignitzer Eisenbahn GmbH | | D | TRAFFIC |
| 6 | PEG | Prignitzer Eisenbahn-Gesellschaft | | DE | VKM |
| 7 | PEGB | PERKINSON, GLENN B | | | SCAC3 |
| 8 | PEGD | PEGASUS DISTRIBUTING INC | | | SCAC3 |
| 9 | PEGE | PERKINS, GEORGE E, STORAGE AND TRAN | | | SCAC3 |
| 10 | PEGE | PERKINS STORAGE & TRANSFER CO INC | | | SCAC4 |
| 11 | PEGF | PERRIGAN FARM | | | SCAC3 |
| 12 | PEGF | PINNACLE EYE GROUP | | | SCAC4 |
| 13 | PEGH | PEGASUS HORSE TRANSPORTATION INC | | | SCAC3 |
| 14 | PEGI | PEGASUS TRANSPORTATION INC | | | SCAC3 |
| 15 | PEGI | PETERSON, ERIC G | | | SCAC4 |
| 16 | PEGL | PINE-EAGLE FREIGHTLINES INC | | | SCAC3 |
| 17 | PEGN | PENGUIN POINT ENTERPRISES INC | | | SCAC3 |
| 18 | PEGP | PETROLEUM ENERGY PRODUCTS CORP | | | SCAC3 |
| 19 | PEGP | PETROLEUM ENERGY PRODUCTS CO | | | SCAC4 |
| 20 | PEGR | PETTIGREW TRUCKING INC | | | SCAC3 |
| 21 | PEGS | PEABODY ENGINEERING & SUPPLY INC | | | SCAC3 |
| 22 | PEGU | PRODIT ENGINEERING S.R.L. | | I | BIC |
| 23 | PEGW | PENNSYLVANIA GAS & WATER CO | | | SCAC3 |
| 24 | PEGX | Falley Corp. | added 4/1969; eliminated 7/1969 | | NAKINA |
| 25 | PEGX | Falley Petroleum Co. | added 1/1969; eliminated 4/1969 | | NAKINA |
| 26 | PEGX | Petroleum Gas Co. | added 10/1960; 4/1961-10/1966; eliminated 1/1969 | | NAKINA |
| 27 | PEGX | Petroleum Gas Co. | added 10/60; 4/61-10/66; eliminated 1/69 | | NRHS |
| 28 | PEGX | Falley Petroleum Co. | added 1/69; eliminated 4/69 | | NRHS |
| 29 | PEGX | Falley Corp. | added 4/69; eliminated 7/69 | | NRHS |
| 30 | PEGX | FALLEY CORP. [FALLEY PETROLEUM CO.; PETROLEUM GAS CO.] | | | PWRC |
| 31 | PEGX | PETROLEUM GAS CO | | | SCAC3 |
| 32 | PEGY | PETCO | | | SCAC4 |
| 33 | PEGZ | PEAVEY GRAIN | | | PWRC |
