North Dakota licenses the contractors who install septic systems and permits the sanitary pumpers who pump and haul septage, both through the Department of Environmental Quality. This page lists them from the official state registries.
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Showing the first 120 of 489 certified companies (A–Z). Browse every North Dakota company by name, or by county ↑:
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| Company | Location | County | Certifications | License # |
|---|---|---|---|---|
| 1 Call Excavating LLC | Burlington, ND | — | Installer | — |
| 1 Call Septic Service, Inc | Minot, ND | Ward | Pumper (Class I) | NDSP007310 |
| 24/7 Septic Service LLC | Rolla, ND | Rolette | Pumper (Class II) | NDSP007302 |
| 2nd to None Septic Solutions LLC | Borup, MN | Norman | Pumper (Class I) | NDSP07411 |
| 4 Corners Sanitation | Mott, ND | Hettinger | Pumper (Class II) | NDSP007289 |
| 4K Excavating LLC | Granville, ND | — | Installer | — |
| 701 Dirtworks LLC | Mercer, ND | — | Installer | — |
| A & C Land Development Inc | Washburn, ND | — | Installer | — |
| A-1 Evans Septic Service | Minot, ND | — | Installer | — |
| A-1 Evans Septic Tank Service | Minot, ND | Ward | Pumper (Class I) | NDSP007330 |
| A-1 Sanitation & Excavation | Dickinson, ND | Stark | Pumper (Class II) | NDSP007322 |
| A-1 Septic Pumping Plus | Mandan, ND | Burleigh | Pumper (Class II) | NDSP007347 |
| A.S.A.P. Pumping Service | Gladstone, ND | Dunn | Pumper (Class II) | NDSP007380 |
| A&A Sanitation, LLC | Killdeer, ND | Dunn | Pumper (Class I) | NDSP007312 |
| A&M Quality Building & Remodeling, LLC | Williston, ND | — | Installer | — |
| A1 Contractors | Dickinson, ND | — | Installer | — |
| Abe's Excavating | Devils Lake, ND | — | Installer | — |
| Above the Level Plumbing LLC | Williston, ND | — | Installer | — |
| Adam Thacker | Neche, ND | — | Installer | — |
| Advanced Construction & Design | Washington, UT | — | Installer | — |
| Advanced Custom Contractors | Dickinson, ND | — | Installer | — |
| Advanced Services, Inc. | Saginaw, MN | — | Pumper (Class I) | NDSP007329 |
| Advent Plumbing | Williston, ND | — | Installer | — |
| Agri Industries, Inc. | Williston, ND | — | Installer | — |
| Air Flow | Horace, ND | Cass | Pumper (Class II) | NDSP007287 |
| Alan Helm Contracting | McClusky, ND | — | Installer | — |
| All Source Plumbing | Williston, ND | — | Installer | — |
| Allen Fenstermacker Construction | Stanley, ND | — | Installer | — |
| Alpha Septic and Sewer Inc | Williston, ND | — | Installer | — |
| Alpine Breeze LLC | Horace, ND | Cass | Pumper (Class II) | NDSP007373 |
| AM Construction | Plaza, ND | — | Installer | — |
| Anderson & Wood Construction | Meridian, ID | — | Installer | — |
| Andy's Excavating | Leonard, ND | — | Installer | — |
| ARK Enterprises | Watford City, ND | — | Installer | — |
| Asplin Excavating | Fargo, ND | Cass | Pumper (Class I) | NDSP007324 |
| Atlas Excavating LLC | Bismarck, ND | — | Installer | — |
| Aurora Plumbing Elec. & HVAC | Hankinson, ND | — | Installer | — |
| AW Excavating | Wishek, ND | — | Installer | — |
| Azure's Excavating | Rolla, ND | — | Installer | — |
| B & B Repair | Glen Ullin, ND | — | Installer | — |
| B & C Sanitation Services LLC | Dickinson, ND | Stark | Pumper (Class I) | NDSP007296 |
| B & E Excavating & Homes LLC | Enderlin, ND | — | Installer | — |
| B & E Excavating and Homes | Enderlin, ND | — | Installer | — |
| B & J Excavating | Rugby, ND | — | Installer | — |
| B&B Contracting | Aberdeen, SD | — | Installer | — |
| Baranko Companies | Dickinson, ND | — | Installer | — |
| Barrett Excavating, Inc. | Mandan, ND | — | Installer | — |
| Barry's Excavating Construction | Minot, ND | — | Installer | — |
| Basaraba Excavating & Dirt Works LLC | Wilton, ND | — | Installer | — |
| Bayview South LLC | Devils Lake, ND | — | Installer | — |
| Bear Mountain LLC | New Town, ND | — | Installer | — |
| Beckman Septic LLC | Valley City, ND | Barnes | Pumper (Class II) | NDSP007290 |
| Beeter Brothers Construction LLC | Minot, ND | — | Installer | — |
| Bek Consulting | Dickinson, ND | — | Installer | — |
| Ben Hofer Backhoe | Aberdeen, SD | — | Installer | — |
| Beus Excavation, LLC | Nampa, ID | — | Installer | — |
| Beutler Excavating | Bismarck, ND | — | Installer | — |
| BG Excavation | Dickinson, ND | — | Installer | — |
| Big D Excavating LLC | Deering, ND | — | Installer | — |
| Big Land Excavation, Llc | Bismarck, ND | — | Installer | — |
| Bill Cassady Enterprises | Sentinel ButteND, ND | — | Installer | — |
| Bismarck Septic & Excavating | Bismarck, ND | Burleigh | Pumper (Class II) | NDSP007352 |
| Bismarck-septic-excavating | Bismarck, ND | — | Installer | — |
| Black Diamond Solutions | Williston, ND | — | Installer | — |
| Black Water Bandit LLC | Hazen, ND | Mercer | Pumper (Class II) | NDSP007355 |
| Black Water Pumping & Septic Service | Hatton, ND | Steele | Pumper (Class I) | NDSP007337 |
| Black's Well Service | Williston, ND | — | Installer | — |
| Bob's Excavating | Valley City, ND | — | Installer | — |
| Bohl Trenching | Thompson, ND | — | Installer | — |
| Boote Portable Toilets | Binford, ND | Griggs | Pumper (Class I) | NDSP007344 |
| Boote Septic Solutions | Binford, ND | Griggs | Pumper (Class II) | NDSP007353 |
| Borderline LLC | Bottineau, ND | — | Installer | — |
| Bottineau Plumbing & Heating | Bottineau, ND | — | Installer | — |
| Bottineau Plumbing and Heating | Bottineau, ND | Bottineau | Pumper (Class II) | NDSP007385 |
| Bottom Line Excavating | West Fargo, ND | — | Installer | — |
| Bowers Excavating | Mandan, ND | — | Installer | — |
| Braaten Plumbing | Williston, ND | — | Installer | — |
| Brad Bonnet Contracting, Inc. | Bismarck, ND | — | Installer | — |
| Bridgetown Builders Inc | Valley City, ND | — | Installer | — |
| Bruesch Construction | Amenia, ND | — | Installer | — |
| Buchmeier Earth Moving | Warwick, ND | — | Installer | — |
| Buckmier's Excavating | Hettinger, ND | Adams | Pumper (Class II) | NDSP007307 |
| Buffalo Concrete | Mandan, ND | — | Installer | — |
| C & L Backhoe Service | Stanton, ND | — | Installer | — |
| Capex Oilfield Services Inc | Williston, ND | Williams | Pumper (Class II) | NDSP07406 |
| Carr Construction | Carrington, ND | — | Installer | — |
| Casey Sadek | Valley City, ND | — | Installer | — |
| Cassady Enterprise | Sentinel ButteND, ND | — | Installer | — |
| CCK Dirtwork LLC | Kalispell, MT | — | Installer | — |
| Central City Excavating | Carrington, ND | — | Installer | — |
| Central Excavation | Carrington, ND | — | Installer | — |
| Charging Eagles Enterprises, LLC. | Killdeer, ND | Dunn | Pumper (Class I) | NDSP07409 |
| CHR Construction Services LLC | Sabin, MN | — | Installer | — |
| Clark and Sons Earthworks Consulting LLC | Williston, ND | — | Installer | — |
| Clark's Excavating & Septic | Moorhead, MN | — | Installer | — |
| Cody Echevarria Construction LLC | Williston, ND | — | Installer | — |
| Cordova Construction | Dickinson, ND | — | Installer | — |
| Coreys Septic Service | Williston, ND | — | Installer | — |
| Cousin Freddy's Septic Service LLC | Upham, ND | McHenry | Pumper (Class I) | NDSP007384 |
| Coyote Construction | Velva, ND | — | Installer | — |
| Creative Construction, Llc | Mandan, ND | — | Installer | — |
| Custom Contracting Solutions, LLC | Jamestown, ND | — | Installer | — |
| D & B Portables | Sanborn, ND | Barnes | Pumper (Class I) | NDSP007388 |
| D&D Water Well Service, Inc. | Watford City, ND | — | Installer | — |
| D&L Construction, Inc. | Parshall, ND | — | Installer | — |
| Dak Construction, Llc | Pick City, ND | — | Installer | — |
| Dakota Asphalt & Excavation | Fordville, ND | — | Installer | — |
| Dakota Dirt and Drain | Bismarck, ND | — | Installer | — |
| Dakota Drain Fields, Llp | Mandan, ND | — | Installer | — |
| Dakota Earthworks LLC | Washburn, ND | — | Installer | — |
| Dakota Improvement | Oakes, ND | — | Installer | — |
| Dakota Septic Service | Rutland, ND | Sargent | Pumper (Class I) | NDSP007298 |
| Dakota Underground Specialities | Minot, ND | — | Installer | — |
| Dale Pottorff | Dickinson, ND | — | Installer | — |
| DB Plumbing and Service | Mandan, ND | — | Installer | — |
| DBA Steen Construction Davidson Construction Inc | Minot, ND | — | Installer | — |
| Dean Oakland | Cartwright, ND | — | Installer | — |
| Dean's Excavating | Minot, ND | — | Installer | — |
| Dehne Septic Pumping Service | Cleveland, ND | — | Installer | — |
| Dehne Septic Pumping Service | Cleveland, ND | Stutsman | Pumper (Class II) | NDSP07399 |
Most directories only tell you who to call. These are the cases where the honest answer is that you may not need this service at all, and the mistakes that cost people the most money.
Typical septic pumping pricing, with sources: what this costs in ND →
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