| Company | Website | City/State | Country |
|---|---|---|---|
| Holston Electric Cooperative | Visit Us | Rogersville, TN | UNITED STATES |
| Hoosier Energy Rural Electric Cooperative | Visit Us | Bloomington, IN | UNITED STATES |
| Huntsville Utilities | Visit Us | Huntsville, AL | UNITED STATES |
| Hydro One Networks, Inc. | Visit Us | Toronto, ON | CANADA |
| Hydro One Telecom Inc. | Visit Us | Toronto, ON | CANADA |
