| Company | Location | Certifications | License # |
|---|---|---|---|
| Emerald Coast Wastewater Solutions Llc | Crestview, FL | Installer (Business Authorization) | SA0232179 |
| Florida Septic | Crestview, FL | Installer (Business Authorization) | SA0192028 |
| Fowlers Septic Tanks Llc | Crestview, FL | Installer (Business Authorization) | SA0091643 |
| Rogers-Grant Septic Tank Co. Inc. | Crestview, FL | Installer (Business Authorization) | SA0051250 |
| Stephen C Madden Ii Septic Services | Laurel Hill, FL | Installer (Exempt Business) | SE0192040 |
| Superior First Response Inc. | Crestview, FL | Installer (Business Authorization) | SA0171955 |
| Wilkinson Septic Tank Inc. | Milligan, FL | Installer (Business Authorization) | SA0091589 |
| William H. Arnett Septic | Holt, FL | Installer (Exempt Business) | SE0041194 |
| Zeb Watts Septic & Underground Inc. | Crestview, FL | Installer (Business Authorization) | SA0131840 |
9 companies in the Florida DEP septic tank contractor registrations & business authorizations are based in Okaloosa County as of 2026-07-23. Companies based elsewhere in Florida also commonly serve the county.
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