| 1 | TI | Tol Air Services, Inc. | ICAO: TOL, Callsign: Tol Air, | PRI | AVCODES |
| 2 | TI | Aerial Tours PTY Ltd. | | AUS | AVCODES |
| 3 | TI | TACA Costa Rica Anonima | ICAO: TAT, Callsign: TACA-Costarica, Name changed from Transportes Aereos del Continente Americano - TACA Costa Rica | CR | AVCODES |
| 4 | TI | Tailwind Hava Yollari A.S. | ICAO: TWI, Callsign: Tailwind, IATA Prefix: 768, Founded in 2006. | TR | AVCODES |
| 5 | TI | TAISA Transportes Aereos Internacionales S.A. | Callsign: Tango India, ICAO callsign changed to Taisa | PE | AVCODES |
| 6 | TI | TAISA Transportes Aereos Internacionales S.A. | ICAO: TII, Callsign: Taisa, ICAO callsign changed from Tango India | PE | AVCODES |
| 7 | TI | Tropic Ocean Airways, LLC. | | USA | AVCODES |
| 8 | TI | Turners Island, LLC | 7/2005 | | NAKINA |
| 9 | TI | *TONAWANDA IRON | | | PWRC |
| 10 | TI | +TURNERS ISLAND, LLC | | | PWRC |
| 11 | TI | Turners Island | | | RSRV |
| 12 | TI | TURNERS ISLAND LLC | | | SCAC4 |
| 13 | TI | Trenitalia S.p.A. | | IT | VKM |
| 14 | TIA | Trans International Airlines | Callsign: Trans, | USA | AVCODES |
| 15 | TIA | Trans International Airlines | | | ICAO1 |
| 16 | TIAA | TRANSEXPERTS INC | | | SCAC4 |
| 17 | TIAB | TRANSPOINT INC | | | SCAC4 |
| 18 | TIAF | TIZNADO PALLETS & LUMBER | | | SCAC4 |
| 19 | TIAI | TIME D C INC | | | SCAC4 |
| 20 | TIAJ | TIA TRUCKING | | | SCAC4 |
| 21 | TIAM | TRANSPORTES IZQUIERDO ALEMAN | | | SCAC4 |
| 22 | TIANJ | Tianjin Metro | | PRC | TRAFFIC |
| 23 | TIAR | TRI AIR TRANSPORTATION, INC | | | SCAC1 |
| 24 | TIAR | TRI AIR TRANSPORTATION INC | | | SCAC4 |
| 25 | TIAT | TITAN TRANSPORTATION | | | SCAC4 |
| 26 | TIB | TRIP Linhas Aéreas | IATA: T4, Callsign: Trip, IATA designator changed to T4 | BR | AVCODES |
| 27 | TIB | TRIP Linhas Aéreas | IATA: T4, Callsign: Trip, IATA Prefix: 661, Founded in 1998. Merged in Azul Brazilian Airlines on 06 May 2014. IATA designator changed from T4* | BR | AVCODES |
| 28 | TIB | TRIP Linhas Aéreas | IATA: 8R | | ICAO1 |
| 29 | TIB | Tåg i Bergslagen | | SE | VKM |
| 30 | TIBD | TRANSVALUE INC | | | SCAC4 |
| 31 | TIBE | TRANSGLAD INC | | | SCAC4 |
| 32 | TIBG | TEAGUE INC | | | SCAC4 |
| 33 | TIBM | TIBBAN MANUFACTURING | | | SCAC4 |
| 34 | TIBP | TRAILCO TERMINAL SERVICES INC | | | SCAC4 |
| 35 | TIBR | TimberRock R.R. Co., Inc. | 7/2000-7/2005; added 4/2008 | | NAKINA |
| 36 | TIBR | TimberRock R.R. Co., Inc. | Jul-00 | | NRHS |
| 37 | TIBR | TIMBER ROCK RAILROAD COMPANY | | | PWRC |
| 38 | TIBR | TimberRock Railroad | | | RSRV |
| 39 | TIBS | TIBBS TRANSPORT INC | | | SCAC4 |
| 40 | TIBT | TIMBERFIELD TRANSPORT | | | SCAC4 |
| 41 | TIBU | TACON GMBH TANK & CONTAINER SERVICES | | D | BIC |
| 42 | TIC | Travel International Air Charters Ltd. | Callsign: Travel International, | Z | AVCODES |
| 43 | TIC | Transportes Aereos Costarricenses | IATA: 5L, Callsign: Tac Airlines, | CR | AVCODES |
| 44 | TIC | Travel International Air Charters | | | ICAO1 |
| 45 | TICB | TAINO TRANSPORT INCORPORATED | | | SCAC4 |
| 46 | TICC | TICL TRANSPORTE INTERNACIONAL DE CA | | | SCAC4 |
| 47 | TICE | TICE & SONS TRANSPORT | | | SCAC4 |
| 48 | TICE | Transport intercommunal de personnes dans le canton d'Esch-sur-Alzette | | L | TRAFFIC |
| 49 | TICESS | Transports intercommunaux Centre Essonne | Real: TICE | F | TRAFFIC |
| 50 | TICF | TRICOR CALIFORNIA, INC | | | SCAC1 |
| 51 | TICH | TICSA | | | SCAC4 |
| 52 | TICJ | TRANSPORTES INTERNACIONALES CRELJOR | | | SCAC4 |
| 53 | TICK | TRICKSTERS TRUCKING INC | | | SCAC4 |
| 54 | TICL | TRANSPORT INTERNATIONAL COMMODITIES | | | SCAC4 |
| 55 | TICM | TRANSPORTES INTERNACIONALES CBL SA | | | SCAC4 |
| 56 | TICO | TIMCO TRANSPORTATION | | | SCAC4 |
| 57 | TICQ | TRANSMAC INC | | | SCAC4 |
| 58 | TICR | TRANSVERSAL INTERNATIONAL CORPORATI | | | SCAC4 |
| 59 | TICT | TRANS IOWA CHARTERS LLC | | | SCAC4 |
| 60 | TICU | LIVERANI GROUP SPA | | I | BIC |
| 61 | TICU | C T I CONSORZIO PER RASPORTI INTERM | | | SCAC4 |
| 62 | TICW | TRANSINTERNATIONAL CARGO INC | | | SCAC4 |
| 63 | TICX | National Car Co. | added 7/1961 | | NAKINA |
| 64 | TICX | Fruit Growers Express | 7/1965 | | NAKINA |
| 65 | TICX | Thermice Corp., Philadelphia, PA (National Car Co.) | 10/1966 | | NAKINA |
| 66 | TICX | Fruit Growers Express Co. | 4/1970 | | NAKINA |
| 67 | TICX | National Car Co. | eliminated 1/1972 | | NAKINA |
| 68 | TICX | Fruit Growers Express Co. | added 1/1972; 1/1975; eliminated 1/1975 | | NAKINA |
| 69 | TICX | Fruit Growers Express | Jul-65 | | NRHS |
| 70 | TICX | Thermice Corp., Philadelphia, PA (National Car Co.) | Oct-66 | | NRHS |
| 71 | TICX | Fruit Growers Express Co. | Apr-70 | | NRHS |
| 72 | TICX | National Car Co. | eliminated 1/72 | | NRHS |
| 73 | TICX | Fruit Growers Express Co. | added 1/72; 1/75; eliminated 1/75 | | NRHS |
| 74 | TICX | FRUIT GROWERS EXPRESS 9NATIONAL CAR CO.) | | | PWRC |
| 75 | TIDA | TIDAL TRANSPORTATION INC | | | SCAC4 |
| 76 | TIDB | TIDBROS EXPRESS | | | SCAC4 |
| 77 | TIDD | TRANSPORTES INTERNACIONALES DE COME | | | SCAC4 |
| 78 | TIDF | TIO FAST FREIGHT | | | SCAC4 |
| 79 | TIDG | THIRD COAST LOGISTICS LLC | | | SCAC4 |
| 80 | TIDH | TRANS ISLAND MARITIME LTD | | | SCAC4 |
| 81 | TIDI | TIDI DE MEXICO | | | SCAC4 |
| 82 | TIDL | TIDE LINE INC | | | SCAC4 |
| 83 | TIDN | TRANSPORTES INTEGRALES DEL NORTE | | | SCAC4 |
| 84 | TIDP | TRANSPORTES INOVATIVOS DEL NORTE SA | | | SCAC4 |
| 85 | TIDS | TRI-ISLAND DISTRIBUTORS INC | | | SCAC4 |
| 86 | TIDU | TI2 LOGISTICS PTE LTD | | SGP | BIC |
| 87 | TIDV | TRASMISA SA DE CV | | | SCAC4 |
| 88 | TIDX | Tidal Gasoline Co. | 8/1920 | | NAKINA |
| 89 | TIDX | Tidal Refining Co. | 7/1923-7/1932 | | NAKINA |
| 90 | TIDX | Tide Water Oil Co. (of Oklahoma) | 7/1935 | | NAKINA |
| 91 | TIDX | Tide Water Associated Oil Co. | 7/1937-7/1954; eliminated 10/1956 | | NAKINA |
| 92 | TIDX | Tidewater Oil Co. | added 10/1956; 10/1957-10/1966; eliminated 10/1967 | | NAKINA |
| 93 | TIDX | Getty Oil Co. | added 10/1967; 4/1970; eliminated 4/1972 | | NAKINA |
| 94 | TIDX | Tidewater Oil Co. | 4/38-10/66; eliminated 10/67 | | NRHS |
| 95 | TIDX | Getty Oil Co. | added 10/67; 4/70; eliminated 4/72 | | NRHS |
| 96 | TIDX | GETTY OIL CO. [TIDEWATER OIL CO.; TIDE WATER ASSOCIATED OIL CO.; TIDAL REFINING CO.; TIDAL GASOLINE CO.] | | | PWRC |
| 97 | TIE | Time Air, s.r.o. | Callsign: Time Air, | CZ | AVCODES |
| 98 | TIE | Time Air | | | ICAO1 |
| 99 | TIED | TILLEY ENDURABLES INC | | | SCAC4 |
| 100 | TIEJ | TRANSPORTE INTERNACIONAL ERSEBA | | | SCAC4 |
