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
GCA GCB GCC GCD GCE GCF GCG GCH GCI GCK GCL GCM GCN GCO GCP GCQ GCR GCS GCT GCU GCV GCW GCX GCY
GCEA GCED GCEG GCEK GCEN GCEP GCEQ GCEU GCEX GCEZ
1 GCEX Gulf Coast Grain Co. 1/1980   NAKINA
2 GCEX Gulf Coast Grain Co. Jan-80   NRHS
3 GCEX GULF COAST GRAIN CO.     PWRC