| 1 | TAP | Transportes Aereos Portugueses, E.P. | IATA: TP, Callsign: Air Portugal, IATA Prefix: 047, Name changed to TAP - Air Portugal | P | AVCODES |
| 2 | TAP | TAP Portugal | IATA: TP, Callsign: Air Portugal, IATA Prefix: 047, Name changed from TAP - Air Portugal | P | AVCODES |
| 3 | TAP | TAP Portugal | IATA: TP | | ICAO1 |
| 4 | TAP | T and P Ry., Inc. | added 1/1992; eliminated 7/1993; 1/1994 (not listed) | | NAKINA |
| 5 | TAP | T and P Ry., Inc. | added 1/92; eliminated 7/93; 1/94 | | NRHS |
| 6 | TAP | RETIRED 11-08-93 (697) ATP [T & P RAILWAY, INC.] | | | PWRC |
| 7 | TAP | | City: Tapolca | H | TRAFFIC |
| 8 | TAPA | TRANSPORTES ALFA | | | SCAC4 |
| 9 | TAPB | TAMPA BAY MOVING SYSTEMS INC | | | SCAC3 |
| 10 | TAPC | TRANSPORTATION COORDINATORS | | | SCAC3 |
| 11 | TAPC | TARGET PACIFIC COAST TRANSPORT LTD | | | SCAC4 |
| 12 | TAPD | TAHOE PICKUP AND DELIVERY SERVICE | | | SCAC3 |
| 13 | TAPD | TRANSPORT Q-TRANS INC | | | SCAC4 |
| 14 | TAPE | TRANSPORTES C & A | | | SCAC4 |
| 15 | TAPF | TAPPANS | | | SCAC3 |
| 16 | TAPF | TAPPANS LIMITED INC | | | SCAC4 |
| 17 | TAPH | TEAM AUTO PROCESSING (DIV OF COOJ) | | | SCAC3 |
| 18 | TAPJ | TAPIA JR TRUCKING | | | SCAC4 |
| 19 | TAPK | TAMO INC | | | SCAC4 |
| 20 | TAPL | TAI PAN LIMOUSINE LTD | | | SCAC3 |
| 21 | TAPM | TAPIA MIRANDA, GERMAN | | | SCAC4 |
| 22 | TAPN | TAPPAN APPLIANCES, TAPPAN PARK | | | SCAC3 |
| 23 | TAPN | TRIDENT AG PRODUCTS INC | | | SCAC4 |
| 24 | TAPO | TRANSPORT INCORPORATED | | | SCAC3 |
| 25 | TAPP | TAPP TRUCKING | | | SCAC3 |
| 26 | TAPP | TAPICERIAS PACIFICO SA DE CV | | | SCAC4 |
| 27 | TAPP | TAP Portugal | Real: TAP, TP | P | TRAFFIC |
| 28 | TAPQ | TAPPAN CARRIERS INC | | | SCAC3 |
| 29 | TAPQ | TRANSPORT A P C | | | SCAC4 |
| 30 | TAPR | T A P S TRANSFER | | | SCAC3 |
| 31 | TAPR | TRANSPORT JNS | | | SCAC4 |
| 32 | TAPS | TAPSCOTT TRUCKING CO | | | SCAC3 |
| 33 | TAPS | THIRD ACT PRODUCTIONS | | | SCAC4 |
| 34 | TAPT | T & P TRANSPORTATION OF NEW JERSEY | | | SCAC3 |
| 35 | TAPU | TOKUYAMA SINGAPORE PTE LTD | | SGP | BIC |
| 36 | TAPU | TOKUYAMA ELECTRONIC CHEMICALS PTE L | | | SCAC4 |
| 37 | TAPW | TAPWOOD TRUCKING CO INC | | | SCAC4 |
| 38 | TAPX | Transatlantic Petroleum Co. | 8/1920-7/1923 | | NAKINA |
| 39 | TAPX | TRANSATLANTIC PETROLEUM CO. | | | PWRC |