| company | role | hq | verified |
| Hoover Electric & Hydraulic | DIST | Kenton, OH (US) | 1 mfrs |
| Hopper Elec Serv | DIST | Nampa, ID (US) | 1 mfrs |
| Horner Elec CO | DIST | Indianapolis, IN (US) | 1 mfrs |
| Horton Elec Mtr | DIST | Athens, PA (US) | 1 mfrs |
| Houma Armature Works | DIST | Houma, LA (US) | 1 mfrs |
| Howard ACQUISITIONS, LLC | DIST | Memphis, TN (US) | 1 mfrs |
| Hps Electrical Apparatus Sales & SE | DIST | Roseburg, OR (US) | 1 mfrs |
| Huber Electric INC | DIST | Fargo, ND (US) | 1 mfrs |
| Hunnell Electric CO | DIST | Akron, OH (US) | 1 mfrs |
| Hunter Electric Mtr | DIST | Columbus, GA (US) | 1 mfrs |
| Hurst Farm Service | DIST | Plymouth, OH (US) | 1 mfrs |
| Hydraulic CONNECTIONS, INC | DIST | Brunswick, OH (US) | 1 mfrs |
| Hydroair Dees | DIST | Joppa, MD (US) | 1 mfrs |
| I B T | DIST | Jefferson City, MO (US) | 1 mfrs |
| IBT, INC - MARSHALL, Mn | DIST | Marshall, MN (US) | 1 mfrs |
| Ickes Electric | DIST | Fremont, OH (US) | 1 mfrs |
| III Phase Electric INC | DIST | American Falls, ID (US) | 1 mfrs |
| Illiana Industrial Electric Motor | DIST | Valparaiso, IN (US) | 1 mfrs |
| Industrial Control Design & Main. | DIST | Tallmadge, OH (US) | 1 mfrs |
| Industrial Elec & Control CO | DIST | Denver, CO (US) | 1 mfrs |