| 1 | HFC | HANNA FURNACE CO. | | | PWRC |
| 2 | HFCC | HORTON FRUIT CO INC, THE | | | SCAC4 |
| 3 | HFCD | HIGHBALL FISHING CO LTD | | | SCAC4 |
| 4 | HFCG | HEBERT, FREDERICK CRAIG | | | SCAC4 |
| 5 | HFCU | SPEDITION RHEINLAND H.FREUND GMBH&CO. KG | | D | BIC |
| 6 | HFCU | SPEDITION RHEINLAND H FREUND GMBH & | | | SCAC4 |
| 7 | HFCX | Harlan Fuel Co. | added 10/1978; eliminated 1/1979 | | NAKINA |
| 8 | HFCX | Harlan Fuel Co. | added 10/78; eliminated 1/79 | | NRHS |
| 9 | HFCX | HARLAN FUEL CO. | | | PWRC |
| 10 | HFCY | HOLMAN FREIGHT COMPANY | | | SCAC4 |
