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| Company | Location | County | Certifications | License # |
|---|---|---|---|---|
| Farden Construction Inc | Maxbass, ND | — | Installer | — |
| Faul Excavating | Harvey, ND | — | Installer | — |
| Fergus Power Pump, Inc. | Fergus Falls, MN | — | Pumper (Class I) | NDSP007207 |
| First Dakota Ent. Inc | Fort Pierre, SD | — | Installer | — |
| Fixit 4 Him | Minot, ND | — | Installer | — |
| Fly Low Aviation | Ashley, ND | — | Installer | — |
| Flyway Companies LLC | Velva, ND | — | Installer | — |
| Folden Grading | Siltli.ston, ND | — | Installer | — |
| Forthun Septic Tank Service | Alexander, ND | McKenzie | Pumper (Class II) | NDSP007188 |
| Fosness Construction | Towner, ND | — | Installer | — |
| Foss Trenching | Maddock, ND | — | Installer | — |
| Franz Construction, Inc. | Sidney, MT | — | Installer | — |
| Fricke General Contracting | Grafton, ND | — | Installer | — |
| Fth General | Dickinson, ND | — | Installer | — |
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