31 licensed well professionals on record, 30 with published phone numbers. Sourced from Wisconsin state licensing records.
Private wells aren't covered by public water regulations — annual testing for bacteria, nitrates, and local contaminants is on you. Get a certified lab test kit or a treatment quote for your area.
Find testing & treatment options →| Name | City | Phone | License |
|---|---|---|---|
| Branch River Testing Service Llc | Greenleaf | (920)532-0016 | Business lic. 8603 |
| Champion Pump & Water Service Inc | New Franken | (920)866-9464 | Business lic. 4961 |
| Cieslewicz, Luke | De Pere | (920)336-3659 | Individual lic. 8103 |
| Cornelius, Aaron D | Depere | (920)639-7188 | Individual lic. 8956 |
| Danforth Sr, David W | Oneida | (920)869-1690 | Individual lic. 5910 |
| Dowding, Jessie W | Green Bay | (608)354-1998 | Individual lic. 8829 |
| Golden, Trever T | Depere | (920)422-3208 | Individual lic. 9253 |
| Gregorich, David Jr | New Franken | (920)866-9464 | Individual lic. 5058 |
| Gregorich, Matthew P | Casco | (920)655-0514 | Individual lic. 8508 |
| Ground Source Llc | Depere | (920)336-3659 | Business lic. 9443 |
| Lardo, Daniel J | New Franken | (920)866-2344 | Individual lic. 5052 |
| Leo Van De Yacht Well Drilling Inc | Green Bay | (920)434-2969 | Business lic. 6097 |
| Maitland, Joseph G | Greenleaf | (920)532-0016 | Individual lic. 7448 |
| Maitland, Matthew J | Greenleaf | (920)619-7320 | Individual lic. 9082 |
| Retzlaff & Gregorich | New Franken | — | Business lic. 7267 |
| Simonar, Matthew | Depere | (920)461-2139 | Individual lic. 9385 |
| Simonar, Troy T | De Pere | (920)366-9950 | Individual lic. 6667 |
| Strehlow, Jon L | Green Bay | (920)619-2606 | Individual lic. 4537 |
| Tweet/Garot Mechanical, Inc | De Pere | (920)498-0400 | Individual lic. 9160 |
| Van De Yacht Pump Installing Inc | Greenleaf | (920)499-4527 | Business lic. 3250 |
| Van De Yacht, Bill | De Pere | (920)336-3659 | Individual lic. 0037 |
| Van De Yacht, Carson M | Green Bay | (920)434-0104 | Individual lic. 9533 |
| Van De Yacht, Chad M | Pulaski | (920)336-3659 | Individual lic. 7301 |
| Van De Yacht, Eric | Green Bay | (920)434-2969 | Individual lic. 6862 |
| Van De Yacht, Travis | Greenbay | (920)434-2969 | Individual lic. 8900 |
| Van De Yacht, Troy | Green Bay | (920)434-2969 | Individual lic. 6378 |
| Van De Yacht, Vince E | Greenleaf | (920)499-4527 | Individual lic. 4452 |
| Weslow Water Systems Inc | Suamico | (920)621-8303 | Business lic. 6400 |
| Weslow, Anthony J | Green Bay | (920)434-1903 | Individual lic. 6172 |
| Weslow, Brian J | Suamico | (920)434-1903 | Individual lic. 7577 |
| Weslow, Thomas A | Suamico | (920)621-8303 | Individual lic. 3011 |
Wisconsin requires well drillers and pump installers to hold a state license to construct, modify, or service private water wells. Hiring a licensed contractor protects your groundwater, keeps you compliant for property sales and loans, and ensures work meets state construction standards. Always verify a contractor's current license status with the state before hiring.