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| Company | Location | County | Certifications | License # |
|---|---|---|---|---|
| Felix Engineering | Taylor, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03191-OSP |
| Flood Monkies | Altamont, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 03691-OSP |
| Forsgren Associates | Evanston, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03426-OSP |
| Francis Kurzatkowski | Kanab, UT | Kane | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 04154-OSP |
| Frcustoms | Salt Lake City, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 04360-OSP |
| Fullmer Geological LLC | Ogden, UT | Beaver | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 00095-OSP |
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