| 1 | GTLA | GREAT LAKES FLORAL LTD | | | SCAC4 |
| 2 | GTLB | GLOBAL TRUCK LINES INC | | | SCAC4 |
| 3 | GTLF | GOODFAITH TRANSPORT LLC | | | SCAC4 |
| 4 | GTLG | GATEWAY LOGISTICS SERVICES INC | | | SCAC4 |
| 5 | GTLI | GARRETT TRANSPORTATION AND LOGISTIC | | | SCAC4 |
| 6 | GTLJ | G T L TRANSPORTATION INC | | | SCAC4 |
| 7 | GTLK | GAUTHIER, LUCIEN TRUCKING | | | SCAC4 |
| 8 | GTLL | GTL TRUCK LINES, INC | | | SCAC1 |
| 9 | GTLL | GTL TRUCK LINES INC | | | SCAC4 |
| 10 | GTLO | GLOBAL TRANS & LOGISTICS LTD | | | SCAC4 |
| 11 | GTLR | GREAT LAKES TRUCKING LLC | | | SCAC4 |
| 12 | GTLT | GTL TRANSPORTATION INC | | | SCAC4 |
| 13 | GTLU | GTL AGENCIES (S) PTE.LTD | | SGP | BIC |
| 14 | GTLV | GARZA TREVINO, LUIS FERNANDO | | | SCAC4 |
| 15 | GTLW | G TWO (G2) LOGISTICS INC | | | SCAC4 |
| 16 | GTLX | Grubbs Tank Line, Mrs. Harry Grubbs, Owner | 1/1950 (not listed) | | NAKINA |
| 17 | GTLX | Grubbs Tank Line | 7/1937-4/1947 | | NAKINA |
| 18 | GTLX | Grubbs Tank Line | Apr-38 | | NRHS |
| 19 | GTLX | *GRUBBS TANK LINE | | | PWRC |
| 20 | GTLX | +GREAT LAKES RAILCAR, INC. | | | PWRC |
| 21 | GTLX | GREAT LAKES RAILCAR INC | | | SCAC4 |
| 22 | GTLZ | G. T. LEASING | | | PWRC |
| 23 | GTLZ | G. T. Leasing | | | RSRV |
| 24 | GTLZ | G T LEASING | | | SCAC4 |
