| Company | Location | Certifications | License # |
|---|---|---|---|
| A & B Construction Inc. | Fort White, FL | Installer (Business Authorization) | SA0890009 |
| All-In Septics Llc | Lake City, FL | Installer (Business Authorization) | SA0252285 |
| C & D Permitting | Ft. White, FL | Installer (Business Authorization) | SA0991022 |
| Ford'S Septic Tank Service Llc | Lake City, FL | Installer (Business Authorization) | SA0000950 |
| Gross Septic Llc | Lake City, FL | Installer (Business Authorization) | SA0212083 |
| North Florida Septic Tank Inc | Lake City, FL | Installer (Business Authorization) | SA0041210 |
| Peloni Pumping & Portable Toilets Inc | Lake City, FL | Installer (Business Authorization) | SA0970867 |
| Pure Country Septic Llc | Fort White, FL | Installer (Business Authorization) | SA0181984 |
8 companies in the Florida DEP septic tank contractor registrations & business authorizations are based in Columbia County as of 2026-07-23. Companies based elsewhere in Florida also commonly serve the county.
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