| 1 | TL | Trans Mediterranean Airways (TMA) | ICAO: TMA, Callsign: Tango Lima, IATA Prefix: 270, Designator TL recalled by IATA | RL | AVCODES |
| 2 | TL | Airnorth Regional | ICAO: ANO, Callsign: Topend, IATA Prefix: 935, | AUS | AVCODES |
| 3 | TL | Translogis | Berlin | D | privat-bahn.de |
| 4 | TL | Translok GmbH | | D | TRAFFIC |
| 5 | TL&Co. | Taylor, Lowenstein & Co. (General American Tank Car Corp.) | 7/1935 | | NAKINA |
| 6 | TLA | Translift Airways Ltd. | IATA: T7, Callsign: Translift, Name changed to TransAer | IRL | AVCODES |
| 7 | TLA | TransAer International Airlines Ltd. | Ceased operations on 20 October 2000. Name changed from Translift Airways Ltd. | IRL | AVCODES |
| 8 | TLA | A-A-A Air Enterprises, Inc. | Callsign: Triple Alpha, | USA | AVCODES |
| 9 | TLA | Aereotcla, S.A. de C.V. | Callsign: Aerocla, | MEX | AVCODES |
| 10 | TLA | Translift Airways | | | ICAO1 |
| 11 | TLAA | TIMCO LOGISTICS SYSTEMS INC (DIVISI | | | SCAC4 |
| 12 | TLAB | TRANSPORT & LOCATION ALFRED BOUDREA | | | SCAC4 |
| 13 | TLAC | TOTAL LOGISTICS CONSULTANTS LLC | | | SCAC4 |
| 14 | TLAD | TRANSPORTES LASTRA | | | SCAC4 |
| 15 | TLAE | TRANSPORTES LARA CUELLAR | | | SCAC4 |
| 16 | TLAF | TRANSPORT LAPLANTE & FILS INC | | | SCAC4 |
| 17 | TLAI | TAL AIR | | | SCAC4 |
| 18 | TLAL | TRANSITALL SOLUTIONS INC | | | SCAC4 |
| 19 | TLAM | TLC LIGHTING INC | | | SCAC4 |
| 20 | TLAN | TRANSPORT LANDROCH | | | SCAC4 |
| 21 | TLAO | TOSHIBA LOGISTICS AMERICA INCORPORA | | | SCAC4 |
| 22 | TLAU | TRAIL-CON LEASING INCORPORATED (CANADIAN PACIFIC LIMITED) | | | PWRC |
| 23 | TLAU | Trail-Con Leasing | | | RSRV |
| 24 | TLAU | TRAILCON LEASING INC | | | SCAC4 |
| 25 | TLAX | Transload America | 7/2005 (not listed) | | NAKINA |
| 26 | TLAX | TRANSLOAD AMERICA | | | PWRC |
| 27 | TLAX | TRANSLOAD AMERICA LLC | | | SCAC4 |
| 28 | TLAY | TIMCO LOGISTICS SYSTEMS INC | | | SCAC4 |
| 29 | TLAZ | TRAIL-CON LEASING INCORPORATED | | | PWRC |
| 30 | TLAZ | Trail-Con Leasing | | | RSRV |
| 31 | TLAZ | TRAILCON LEASING INC | | | SCAC4 |
| 32 | TLB | Atlantique Air Assistance | IATA: L5, Callsign: Triple-A, Founded in 1989. Ceased operations in October 2017. | F | AVCODES |
| 33 | TLB | Atlantique Air Assistance | | | ICAO1 |
| 34 | TLBE | TRANSPORT LAFLEUR BEAUREGARD INC | | | SCAC4 |
| 35 | TLBF | TMS LOGISTICS INC | | | SCAC4 |
| 36 | TLBJ | TRANS LOGISTICS CORP | | | SCAC4 |
| 37 | TLBN | TRANSPORT F D D L B INC | | | SCAC4 |
| 38 | TLBP | TRANSPORT LUC BONIN | | | SCAC4 |
| 39 | TLBS | TORONTO LUBE SERVICE | | | SCAC4 |
| 40 | TLBU | TOSOH LOGISTICS CORPORATION | | J | BIC |
| 41 | TLBW | TRANSWORLD LINE INC | | | SCAC4 |
| 42 | TLBY | TANEL, ROGER | | | SCAC4 |
| 43 | TLC | Caribbean Express, Inc. | Callsign: Carib-X, | USA | AVCODES |
| 44 | TLC | Caribbean Express | | | ICAO1 |
| 45 | TLCA | TLC NATIONWIDE INC | | | SCAC4 |
| 46 | TLCB | TLC MOVING INC | | | SCAC4 |
| 47 | TLCC | TRANSPORTES LAS CRUCITAS | | | SCAC4 |
| 48 | TLCD | TUM LOGISTICS CARRIER DIVISION INC | | | SCAC4 |
| 49 | TLCE | TELLO CRUZ, LETICIA | | | SCAC4 |
| 50 | TLCG | TRAILCO INC | | | SCAC4 |
| 51 | TLCI | TOTAL LOGISTICS CARGO INC | | | SCAC4 |
| 52 | TLCN | TELESAT CANADA | | | SCAC4 |
| 53 | TLCO | TALCO TRUCKING INC | | | SCAC4 |
| 54 | TLCP | TORSPEC INTERNATIONAL INC | | | SCAC4 |
| 55 | TLCQ | TALON LOGISTICS INC | | | SCAC4 |
| 56 | TLCRG | Transport line Cargo s.r.o. | | CZ | TRAFFIC |
| 57 | TLCS | TRANSPORTES LOS CHINACOS S A DE C V | | | SCAC4 |
| 58 | TLCU | UNIFEEDER A/S | | PL | BIC |
| 59 | TLCU | TECO LINES AS | | | SCAC4 |
| 60 | TLCV | TLC SERVICES, INC | | | SCAC1 |
| 61 | TLCV | TOTAL COVERAGE INC | | | SCAC4 |
| 62 | TLCW | TRANSPORTES ESPECIALIZADOS LA CONQU | | | SCAC4 |
| 63 | TLCX | Trinidad Leaseholds (Canada) Ltd. (marks changed to RRCX) | 1/1950-7/1954; eliminated 4/1956 | | NAKINA |
| 64 | TLCX | Transport Leasing Co. | added 10/1959; 4/1961 | | NAKINA |
| 65 | TLCX | Transport Leasing (Subsidiary of Pullman Inc.) | eliminated 4/1963 | | NAKINA |
| 66 | TLCX | Transport Leasing, a Division of Pullman Inc. | added 4/1963; 7/1965-4/1970; eliminated 10/1970 | | NAKINA |
| 67 | TLCX | Pullman Transport Leasing Co., a Subsidiary of Pullman Inc. | added 10/1970; 1/1975; eliminated 1/1976 | | NAKINA |
| 68 | TLCX | Pullman Leasing Co., a Subsidiary of Pullman Inc. | added 1/1976; 1/1980; eliminated 4/1981 | | NAKINA |
| 69 | TLCX | Pullman Leasing Co. | added 4/1981; eliminated 1/1990 | | NAKINA |
| 70 | TLCX | Itel Rail Corp. | added 1/1990; eliminated 10/1992 | | NAKINA |
| 71 | TLCX | General Electric Railcar Services Corp. | added 10/1992; 1/1994; eliminated 1/2000 | | NAKINA |
| 72 | TLCX | General Electric Rail Services Corp. | added 1/2000; 7/2000-7/2005 | | NAKINA |
| 73 | TLCX | Trinidad Leaseholds (Canada) Ltd. | Jan-52 | | NRHS |
| 74 | TLCX | Transport Leasing Co. | added 10/59; 4/61 | | NRHS |
| 75 | TLCX | Transport Leasing, a Division of Pullman Inc. | 7/65-4/70; eliminated 10/70 | | NRHS |
| 76 | TLCX | Pullman Transport Leasing Co., a Subsidiary of Pullman Inc. | added 10/70; 1/75 | | NRHS |
| 77 | TLCX | Pullman Leasing Co., a Subsidiary of Pullman Inc. | 1/80; eliminated 4/81 | | NRHS |
| 78 | TLCX | Pullman Leasing Co. | added 4/81; eliminated 1/90 | | NRHS |
| 79 | TLCX | Itel Rail Corp. | added 1/90; eliminated 10/92 | | NRHS |
| 80 | TLCX | General Electric Railcar Services Corp. | added 10/92; 1/94; eliminated 1/2000 | | NRHS |
| 81 | TLCX | General Electric Rail Services Corp. | added 1/2000; 7/2000 | | NRHS |
| 82 | TLCX | *TRINIDAD LEASEHOLDS (CANADA) LTD. (MARK CHANGED TO RRCX) | | | PWRC |
| 83 | TLCX | +(NATX) GENERAL ELECTRIC RAIL SERVICES CORP. [ITEL RAIL CORP.; PULLMAN LEASING CO.] | | | PWRC |
| 84 | TLCX | Pullman Leasing | | | RSRV |
| 85 | TLCX | GENERAL ELECTRIC RAILCAR SERVICES C | | | SCAC4 |
| 86 | TLCX | Transport Leasing Co. | now: General Electric Rail Services Corp. | USA | TRAFFIC |
| 87 | TLCY | T S LEGACY LOGISTICS LP | | | SCAC4 |
| 88 | TLD | Aero Taxi, S.A. de C.V. | Callsign: Aero Autlan, Name changed to Aero Taxi Autlan, S.A. de C.V. | MEX | AVCODES |
| 89 | TLD | Aero Taxi Autlan, S.A. de C.V. | Callsign: Aero Autlan, Name changed to Aero Taxi, S.A. de C.V. | MEX | AVCODES |
| 90 | TLD | Aero Taxi Autlan | | | ICAO1 |
| 91 | TLDD | TLD DISTRIBUTING COMPANY AND VEGAS | | | SCAC4 |
| 92 | TLDF | TRANSCO LOGISTICS CORP | | | SCAC4 |
| 93 | TLDG | TRANSLOADING SERVICES COMPANY | | | SCAC4 |
| 94 | TLDJ | TALBERT LOGISTICS LLC | | | SCAC4 |
| 95 | TLDK | TLT LOGISTICS LLC | | | SCAC4 |
| 96 | TLDM | TRACTOLIDER & LOGISTICA DEL BRAVO S | | | SCAC4 |
| 97 | TLDV | TOTAL DISTRIBUTION SERVICE INC | | | SCAC4 |
| 98 | TLDX | Transport Leasing, a Division of Pullman Inc. | added 4/1963; 7/1965-4/1970; eliminated 10/1970 | | NAKINA |
| 99 | TLDX | Pullman Transport Leasing Co., a Subsidiary of Pullman Inc. | added 10/1970; 1/1975; eliminated 1/1976 | | NAKINA |
| 100 | TLDX | Pullman Leasing Co., a Subsidiary of Pullman Inc. | added 1/1976; 1/1980; eliminated 4/1981 | | NAKINA |
