Real world company prefixes

0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M n O P Q R S T U V W X Y Z Ø
G& G0 G1 G2 G3 G4 G5 G6 G7 G8 G9 GA GB GC GD GE GF GG GH GI GJ GK GL GM GN GO GP GQ GR GS GT GU GV GW GX GY GZ
GRA GRB GRC GRD GRE GRF GRG GRH GRI GRJ GRK GRL GRM GRN GRO GRP GRQ GRR GRS GRT GRU GRV GRW GRX GRY GRZ
GRTA GRTC GRTE GRTK GRTL GRTN GRTO GRTP GRTQ GRTR GRTT GRTU GRTV GRTX
1 GRTX Savage-Tolk Energy Services added 4/2001; eliminated 7/2005; 7/2005 (not listed)   NAKINA
2 GRTX Wheelabrator Coal Services Co. added 4/1994; 7/2000; eliminated 4/2001   NAKINA
3 GRTX Wheelabrator Coal Services Co. added 4/94; 7/2000; eliminated 4/2001   NRHS
4 GRTX Savage-Tolk Energy Services added 4/2001   NRHS
5 GRTX SAVAGE-TOLK ENERGY SERVICES (WCSX) [WHEELABRATOR COAL SERVICES]     PWRC
6 GRTX Savage-Tolk Energy Services     RSRV
7 GRTX SAVAGE-TOLK ENERGY SERVICES     SCAC4