| 1 | TG | Thai Airways International Public Company Ltd. | ICAO: THA, Callsign: Thai, IATA Prefix: 217, | T | AVCODES |
| 2 | TG | *TEXAS GULF SULPHUR | | | PWRC |
| 3 | TG | *TREMONT & GULF RY | | | PWRC |
| 4 | TGA | Air Togo S.A. | IATA: YT, Callsign: Air Togo, IATA Prefix: 030, Designator AX recalled by IATA | TG | AVCODES |
| 5 | TGA | Air Togo | IATA: AX, Callsign: Air Togo, Designator AX recalled by IATA | TG | AVCODES |
| 6 | TGA | Aviashelf | Callsign: Taiga, | RUS | AVCODES |
| 7 | TGA | Air Togo | IATA: YT | | ICAO1 |
| 8 | TGAA | TRANSPORTADORA GARDEA | | | SCAC4 |
| 9 | TGAB | TRANSPORTES GAB S A DE C V | | | SCAC4 |
| 10 | TGAC | TRANSPORTES GARZA (MX-592142) | | | SCAC4 |
| 11 | TGAE | TAGGART, ALBERT E | | | SCAC3 |
| 12 | TGAF | TARGET LOGISTIC SERVICES | | | SCAC4 |
| 13 | TGAI | T-G APPLE INCORPORATED | | | SCAC3 |
| 14 | TGAI | TRANS-GAU INC | | | SCAC4 |
| 15 | TGAL | TGA TRUCKING LLC | | | SCAC4 |
| 16 | TGAN | TALLER GUZMAN | | | SCAC4 |
| 17 | TGAO | TRANSPORT GARO INC | | | SCAC4 |
| 18 | TGAP | TOP GUN AIR EXPRESS | | | SCAC4 |
| 19 | TGAR | T'S GARAGE | | | SCAC3 |
| 20 | TGAS | TI GROUP AUTOMOTIVE SYSTEMS S DE | | | SCAC4 |
| 21 | TGAU | TECHGLASS SP. ZOO. | | PL | BIC |
| 22 | TGAV | THOR GLOBAL LOGISTICS LLC | | | SCAC4 |
| 23 | TGAX | Texasgulf Inc., Agricultural Chemicals Operation | added 1/1978; 1/1980; eliminated 10/1980 | | NAKINA |
| 24 | TGAX | Texasgulf Inc. | added 10/1980; 1/1994; eliminated 10/1995 | | NAKINA |
| 25 | TGAX | PCS Phosphate Co., Inc. | added 10/1995; 7/2000-7/2005 | | NAKINA |
| 26 | TGAX | Texasgulf Inc., Agricultural Chemicals Operation | added 1/78; 1/80; eliminated 10/80 | | NRHS |
| 27 | TGAX | Texasgulf Inc. | added 10/80; 1/94; eliminated 10/95 | | NRHS |
| 28 | TGAX | PCS Phosphate Co., Inc. | added 10/95; 7/2000 | | NRHS |
| 29 | TGAX | PCS PHOSPHATE COMPANY [(TGIX) TEXASGULF INC.] | | | PWRC |
| 30 | TGAX | Texasgulf | | | RSRV |
| 31 | TGAY | TRANSPORTES GAYTAN | | | SCAC4 |
| 32 | TGBA | TRANSPORT G B A T REGD | | | SCAC3 |
| 33 | TGBA | TRANSPORTES GALS | | | SCAC4 |
| 34 | TGBB | TRANSPORT GABOU | | | SCAC4 |
| 35 | TGBD | TRANSGLOBAL SOLUTIONS INTERNATIONAL | | | SCAC4 |
| 36 | TGBE | TRANSPORT G BEAULIEU INC | | | SCAC4 |
| 37 | TGBF | TRANSPORT G | | | SCAC4 |
| 38 | TGBG | TRANSGLOBAL LOGISTICS INC | | | SCAC4 |
| 39 | TGBI | TRANSPORT GEORGES BOURDEAU INC | | | SCAC4 |
| 40 | TGBL | TRANSPORT SAINT-GABRIEL | | | SCAC4 |
| 41 | TGBN | TRANSPORT G B N INC | | | SCAC3 |
| 42 | TGBN | TRANSPORT G B N INC | | | SCAC4 |
| 43 | TGBP | THROUGHBRED EXPRESS INC | | | SCAC4 |
| 44 | TGBQ | TRANSPORT GILL | | | SCAC4 |
| 45 | TGBT | TRANSPORT GUILBAULT, INC | | | SCAC3 |
| 46 | TGBT | TRANSPORT GUILBAULT INC | | | SCAC4 |
| 47 | TGBU | TEXTAINER EQUIPMENT MANAGEMENT LTD | | BM | BIC |
| 48 | TGBV | TRANSPORTES GABOO | | | SCAC4 |
| 49 | TGBW | TRIPLE G BROKERAGE LLC | | | SCAC4 |
| 50 | TGBX | T.G. Bright & Co., Ltd. | 7/1935-1/1950 | | NAKINA |
| 51 | TGBX | T.G. Bright & Co., Ltd. | Apr-38 | | NRHS |
| 52 | TGBX | T. G. BRIGHT & CO., LTD. | | | PWRC |
| 53 | TGBY | TRANSPORT GUY BOUDRIAU INC | | | SCAC4 |
| 54 | TGC | TG Aviation Ltd. | Callsign: Thanet, | GB | AVCODES |
| 55 | TGC | TG Aviation | | | ICAO1 |
| 56 | TGCB | TRANSPORTES GC | | | SCAC4 |
| 57 | TGCD | THREE ONE EIGHT NINE THREE FOUR ONE | | | SCAC4 |
| 58 | TGCH | TDL GROUP CORP, THE | | | SCAC4 |
| 59 | TGCI | TIGERCAT INDUSTRIES INC | | | SCAC4 |
| 60 | TGCJ | TAS LOGISTICS INC | | | SCAC4 |
| 61 | TGCK | TOTAL LOGISTICS TRUCKING | | | SCAC4 |
| 62 | TGCL | THUNDERBOLT GLOBAL LOGISTICS LLC | | | SCAC4 |
| 63 | TGCM | T G T TRANSPORTATION INC | | | SCAC4 |
| 64 | TGCN | TRANSPORT GARIEPY (CANADA) INC | | | SCAC4 |
| 65 | TGCO | TIGER CONTAINER SERVICES LTD | | | SCAC4 |
| 66 | TGCP | TRUE GRIP & LIGHTING LLC | | | SCAC4 |
| 67 | TGCQ | THOMAS ENGINEERING AND CONSTRUCTION | | | SCAC4 |
| 68 | TGCR | TRANSPORTES GOCAR S DE RL DE CV | | | SCAC4 |
| 69 | TGCS | TCS TRUCKING INC | | | SCAC4 |
| 70 | TGCT | T G C TRANSPORTATION | | | SCAC3 |
| 71 | TGCT | TRANSPORTES GUSTAVO CHAVEZ LEON | | | SCAC4 |
| 72 | TGCU | TOUAX GROUP | | F | BIC |
| 73 | TGCU | TCS TRANSGLOBE CONTAINER SERVICES GMBH | | | PWRC |
| 74 | TGCU | TCS Transglobe Container Services | | | RSRV |
| 75 | TGCU | TRANSGLOBE CONTAINER SERVICES | | | SCAC3 |
| 76 | TGCW | TRANSOCEAN GATEWAY CORP. | | | SCAC3 |
| 77 | TGCW | TRI COUNTY GIN | | | SCAC4 |
| 78 | TGCX | Tank Gas Corp. | 1/1950-4/1961; eliminated 7/1963 | | NAKINA |
| 79 | TGCX | Thru-Haul, Inc. | added 7/1963; eliminated 1/1965 | | NAKINA |
| 80 | TGCX | Hopane Distributing Co. | added 1/1965; 7/1965-10/1966; eliminated 10/1968 | | NAKINA |
| 81 | TGCX | Protane Corp., Division of Northern Gas Co. | added 10/1968 | | NAKINA |
| 82 | TGCX | Protane Corp., Division of Northern Propane Gas Co. | 4/1970; eliminated 10/1974; 1/1975-1/1980 | | NAKINA |
| 83 | TGCX | The GEON Co. | added 7/1999; 7/2000; eliminated 1/2001 | | NAKINA |
| 84 | TGCX | The PolyOne Co. | added 1/2001; 7/2005 | | NAKINA |
| 85 | TGCX | Tank Gas Corp. | 1/52-4/61; eliminated 7/63 | | NRHS |
| 86 | TGCX | Thru-Haul, Inc. | added 7/63; eliminated 1/65 | | NRHS |
| 87 | TGCX | Hopane Distributing Co. | added 1/65; 7/65-10/66; eliminated 10/68 | | NRHS |
| 88 | TGCX | Protane Corp., Division of Northern Gas Co. | added 10/68 | | NRHS |
| 89 | TGCX | Protane Corp., Division of Northern Propane Gas Co. | 4/70; eliminated 10/74; 1/75-1/80 | | NRHS |
| 90 | TGCX | The GEON Co. | added 7/99; 7/2000; eliminated 1/2001 | | NRHS |
| 91 | TGCX | The PolyOne Co. | added 1/2001 | | NRHS |
| 92 | TGCX | *PROTANE CORP., DIV. NORTHERN PROPANE GAS CO. [HOPANE DISTRIBUTING CO.; THRU-HAUL, INC.; TANK GAS CORP.] | | | PWRC |
| 93 | TGCX | +POLYONE COMPANY [THE GEON CO.] | | | PWRC |
| 94 | TGCX | PolyOne | | | RSRV |
| 95 | TGCX | PROPANE DISTRIBUTING CO | | | SCAC3 |
| 96 | TGCX | POLYONE CORPORATION, THE | | | SCAC4 |
| 97 | TGCZ | TRACY GARVIN COOP | | | PWRC |
| 98 | TGDA | TRANSPORT GUY D'ANJOU ET FILS INC | | | SCAC4 |
| 99 | TGDC | T G D CONSOLIDATORS | | | SCAC3 |
| 100 | TGDE | TGDK ENTERPRISE LLC | | | SCAC4 |
