| Company | Location | Certifications | License # |
|---|---|---|---|
| Advantage Septic & Drain, LLC | Burtrum, MN | Pumper | L3336 |
| Al's Seasonal Services, LLC | Little Falls, MN | DesignerInspectorInstaller | L4181 |
| Altrichter Excavating, LLC | Cushing, MN | DesignerInspectorInstallerPumper | L281 |
| Crosby and Sons Construction | Randall, MN | Designer (Advanced)Installer | L620 |
| CS Septic Designs, LLC | Pierz, MN | DesignerInspector | L4395 |
| Dave Przybilla Septic & Excavating, LLC | Little Falls, MN | DesignerInspectorInstaller | L1750 |
| Fiedler Your Pumping Specialists, Inc. | Royalton, MN | InspectorPumper | L3318 |
| Hoheisel's Septic Pumping LLC | Pierz, MN | Pumper | L592 |
| JD Services | Little Falls, MN | DesignerInspectorInstaller | L2556 |
| Kapus Excavating LLC | Pierz, MN | DesignerInspectorInstaller | L4285 |
| Kimman Dirt Diggers LLC | Little Falls, MN | Installer | L2027 |
| Kosec Construction, LLC | Cushing, MN | Installer | L1231 |
| Kowalczyk Gravel Inc | Pierz, MN | Installer | L1301 |
| Lahr's Land Works | Cushing, MN | Installer | L4443 |
| Luberts Excavating | Pierz, MN | Installer | L3282 |
| M and J Excavation LLC | Little Falls, MN | Installer | L3939 |
| Mark Wettlaufer | Cushing, MN | DesignerInspector | L2463 |
| Mid-Minn Excavation LLC | Motley, MN | Installer | L2020 |
| Northern Testing, LLC | Motley, MN | DesignerInspector | L243 |
| Pick's Septic and Excavating, LLC | Pierz, MN | DesignerInspectorInstaller | L4277 |
| Pogreba Excavating LLC | Bowlus, MN | Installer | L4462 |
| Pugh Brothers Excavating Inc | Randall, MN | DesignerInstaller | L2203 |
| Rods Excavating & Bobcat LLC | Little Falls, MN | Installer | L3640 |
| Roering Companies LLC | Bowlus, MN | Installer | L4303 |
| Rueckert Construction | Foley, MN | Installer | L3997 |
| Steve Waytashek | Pierz, MN | DesignerInspectorInstaller | L241 |
| TLC Ent LLC | Pierz, MN | Installer | L4200 |
27 companies in the Minnesota MPCA SSTS licensed business registry are based in Morrison County as of 2026-07-23. Companies based elsewhere in Minnesota also commonly serve the county.
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