| 1 | THB | Spark Air | | | ICAO1 |
| 2 | THB | Toronto, Hamilton & Buffalo Ry. Co. | 4/1938-1/1980; eliminated 10/1987 | | NAKINA |
| 3 | THB | CP Rail | 1/1994 | | NAKINA |
| 4 | THB | CP Rail System | eliminated 1/1997 | | NAKINA |
| 5 | THB | Canadian Pacific Ry. Co. | added 1/1997; 7/2000-7/2005 | | NAKINA |
| 6 | THB | Toronto, Hamilton & Buffalo Ry. Co. | 4/38-1/80; eliminated 10/87 | | NRHS |
| 7 | THB | CP Rail | Jan-94 | | NRHS |
| 8 | THB | CP Rail System | eliminated 1/97 | | NRHS |
| 9 | THB | Canadian Pacific Ry. Co. | added 1/97; 7/2000 | | NRHS |
| 10 | THB | CANADIAN PACIFIC RWY. CO. (CP RAIL0 [TORONTO, HAMILTON & BUFFALO RY] | | | PWRC |
| 11 | THB | Toronto, Hamilton and Buffalo Railway (Canadian Pacific Railway) | | | RSRV |
| 12 | THB | Toronto, Hamilton & Buffalo Railway Co. | | CDN | TRAFFIC |
| 13 | THB | Thurbo AG | | CH | VKM |
| 14 | THBE | THUNDERBALL EXPRESS | | | SCAC3 |
| 15 | THBE | TRANSPORTES HERMANOS BELTRAN S A DE | | | SCAC4 |
| 16 | THBH | THOMAS BROS TRUCKING INC | | | SCAC3 |
| 17 | THBI | THREE BROTHERS INC | | | SCAC3 |
| 18 | THBI | THREE B TRANSPORT INC | | | SCAC4 |
| 19 | THBJ | TH SERVICES INC | | | SCAC4 |
| 20 | THBK | THREE B TRUCKING INC (3-B TRUCKING | | | SCAC3 |
| 21 | THBK | TAR HEEL BROKERAGE LLC | | | SCAC4 |
| 22 | THBL | THOMPSON, BOB LANDSCAPING & TRUCKIN | | | SCAC3 |
| 23 | THBM | THOMPSON BUILDING MATERIALS INC | | | SCAC3 |
| 24 | THBM | TWO HARBOURS MARINE | | | SCAC4 |
| 25 | THBN | THEISEN BROTHERS INC | | | SCAC3 |
| 26 | THBN | THREE ZERO EIGHT NINE-ZERO NINE FOU | | | SCAC4 |
| 27 | THBO | THOMASTON TRANSPORTATION CO | | | SCAC3 |
| 28 | THBP | THUNDERBOLT EXPRESS INC | | | SCAC3 |
| 29 | THBR | THOMPSON BROS, INC | | | SCAC3 |
| 30 | THBR | THORNE HILL TRUCKING | | | SCAC4 |
| 31 | THBS | THREE B'S TRANSPORTATION COMPANY (3 | | | SCAC3 |
| 32 | THBT | THIBAULT, LUC TRANSPORT INC | | | SCAC4 |
| 33 | THBU | CONT-ASPHALT LTD. | | CH | BIC |
| 34 | THBU | CONT-ASPHAL LIMITED | | | SCAC4 |
| 35 | THBV | THOMPSON RIVER REDI MIX | | | SCAC4 |
| 36 | THBY | THOMPSON HARVEY BAY AREA LLC | | | SCAC4 |
