| Abbreviation | Definition |
|---|---|
| HECX | Hoosier Energy REC |
| HECX | Hoosier Energy REC Incorporated |
| HELX | Helm Financial Corporation |
| HENU | Provincial Trailer Rentals |
| HENZ | Provincial Trailer Rentals |
| HEPX | Ontario Hydro |
| HEPX | Ontario Hydro (Hydro One) |
| HEQX | Helm Financial Corporation |
| HERX | General Electric Railcar Services Corporation |
| HERX | Hershey Foods (GE Rail Services Corporation) |
| HESR | Huron and Eastern Railway |
| HESR | Huron and Eastern Railway Company |
| HESU | Heritage Environmental Services |
| HESU | Heritage Environmental Services Incorporated |
| HESX | Heritage Environmental Services |
| HESX | Heritage Environmental Services Incorporated |
| HESZ | Heritage Environmental Services |
| HESZ | Heritage Environmental Services Incorporated |
| HFC | Heng Fa Chuen, Hong Kong (Railway station) |
| HFD | Hartford Station (CT Rail - AMTK) |