| Company | Location | Certifications | License # |
|---|---|---|---|
| Absolute Portable Restrooms, Inc. | Cambridge, MN | Pumper | L3189 |
| Advanced Excavating Inc | Saint Francis, MN | InstallerPumper | L3875 |
| Affordable Sanitation Inc. | Cambridge, MN | Pumper | L1893 |
| Ark Septic LLC | Zimmerman, MN | DesignerInspectorInstaller | L3974 |
| Boettcher Excavating and Septic LLC | Cambridge, MN | Designer (Advanced)Inspector (Advanced)InstallerPumper | L4229 |
| Cheyenne Plumbing & Heating Inc | Zimmerman, MN | Installer | L732 |
| Dack Excavating and Septic LLC | Cambridge, MN | Installer | L4475 |
| Dale Becklin | Stanchfield, MN | Installer | L4123 |
| Doug Coe Excavating Inc | North Branch, MN | Installer | L202 |
| E & D Excavating Inc | Cambridge, MN | Installer | L2186 |
| Hammond Enterprises Inc | Cambridge, MN | Installer | L3966 |
| Hass Septic Cleaning, LLC | Isanti, MN | Pumper | L105 |
| Hassle Free Septic LLC | North Branch, MN | InstallerPumper | L3287 |
| L&R Septic, LLC | Dalbo, MN | DesignerInspectorInstaller | L4185 |
| Landworks Construction Inc | Cambridge, MN | Installer | L2837 |
| Maple Ridge Sewer Inc | Cambridge, MN | DesignerInspectorInstallerPumper | L1837 |
| MJL Contracting Inc | Isanti, MN | DesignerInspectorInstallerPumper | L2449 |
| North Metro Siteworks, Inc. | Cambridge, MN | Installer | L4398 |
| Northside Septic Service LLC | Bethel, MN | Designer (Advanced)Inspector (Advanced)InstallerPumper | L930 |
| Ross' Sewer Service, Inc. | North Branch, MN | Pumper | L3448 |
| Soderstrom's Sales & Service, Inc. | Isanti, MN | DesignerInspectorInstallerPumper | L444 |
| Total Outdoor Solutions LLC | Isanti, MN | Designer (Advanced)Inspector (Advanced)Installer | L4203 |
| TRT Excavation & Septics LLP | Saint Francis, MN | Installer | L3650 |
| Weleski and Son Inc | Princeton, MN | Installer | L544 |
| Wood Bros. Construction, LLC | Princeton, MN | Installer | L2559 |
25 companies in the Minnesota MPCA SSTS licensed business registry are based in Isanti County as of 2026-07-23. Companies based elsewhere in Minnesota also commonly serve the county.
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