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Best well drillers in Winnebago County, Wisconsin
Not a pay-to-play list: these are the 65 drilling companies with wells
on record in Winnebago County, ranked by wells actually drilled here — 7,181 logged
wells in the Wisconsin Department of Natural Resources Groundwater Retrieval Network (GRN) well-construction records (records as of 2026-08-14). Every number links back to
the public record.
65companies on record
16active since 2022
7,181wells in county record
| # | Company | In Winnebago Co. since 2016 | All-time in county | Statewide |
|---|
| 1 | Wells BY Welch - Bentley WD LLC | 259 | 306 | 2,415 |
| 2 | Van DE Yacht Leo Well Drilling Inc. | 191 | 799 | 8,998 |
| 3 | Ground Source Inc. | 186 | 299 | 2,237 |
| 4 | Hintzke Well Drilling Inc. | 126 | 290 | 4,365 |
| 5 | Schafer R J & Sons Inc. | 83 | 312 | 1,896 |
| 6 | Sam's Well Drilling Inc. | 66 | 192 | 21,895 |
| 7 | Weslow Water Systems Inc. | 10 | 31 | 1,714 |
| 8 | Steffes, Daniel J | 7 | 7 | 1,151 |
| 9 | Luisier Well Drilling Inc. | 6 | 22 | 12,107 |
| 10 | Shawano Well Drilling Inc. | 2 | 3 | 3,990 |
| 11 | Rock Solid Well Drilling LLC | 2 | 2 | 71 |
| 12 | Daniel J Steffes | 1 | 754 | 4,646 |
| 13 | Dj's Water Service | 1 | 3 | 1,216 |
| 14 | Wagner Brothers Well Drilling IN | — | 800 | 2,207 |
| 15 | Van DE Yacht Bill Wtr Well & Specia | — | 774 | 3,200 |
| 16 | Willems Well Drilling Inc. | — | 498 | 2,117 |
| 17 | Wagner Brothers Well Drilling Inc. | — | 323 | 1,678 |
| 18 | Van DE Yacht Bill Wtr Well @ Spe | — | 303 | 2,253 |
| 19 | Central Well Drilling LLC | — | 223 | 2,757 |
| 20 | Schmidts Water Service | — | 172 | 897 |
| 21 | Red Willems | — | 157 | 854 |
| 22 | Sams Rotary Drillers Inc. | — | 152 | 12,103 |
| 23 | Schafer R J @ Sons Inc. | — | 151 | 1,034 |
| 24 | Thomas A Schmidt | — | 151 | 977 |
| 25 | Zoellner Central Well Drilling | — | 74 | 1,191 |
| 26 | Ethan A Welch | — | 70 | 1,071 |
| 27 | Van DE Yacht Leo Well Drilling I | — | 59 | 2,287 |
| 28 | Willems JR Leonard | — | 44 | 299 |
| 29 | Tipler Well @ Pump | — | 36 | 288 |
| 30 | Leonard Willems JR | — | 26 | 112 |
| 31 | Leo Van DE Yacht | — | 18 | 799 |
| 32 | Van DE Yacht Bill Water Well And | — | 16 | 353 |
| 33 | Van DE Yacht Leo | — | 13 | 716 |
| 34 | Slager Larry J | — | 11 | 339 |
| 35 | Welch Ethan A | — | 10 | 176 |
| 36 | Bill Van DE Yacht | — | 9 | 84 |
| 37 | Neal D Loehrke | — | 8 | 172 |
| 38 | Stephen D Keifenheim | — | 6 | 724 |
| 39 | Wells BY Welch - Rotary Division | — | 6 | 50 |
| 40 | Larry J Slager | — | 5 | 99 |
| 41 | Dennis R Lefeber | — | 4 | 241 |
| 42 | Van DE Yacht, Bill Wtr Well @ SP | — | 4 | 68 |
| 43 | Tipler Well Drilling Inc. | — | 3 | 482 |
| 44 | Tipler Well And Pump | — | 3 | 159 |
| 45 | Valley Well Drilling Inc. | — | 3 | 65 |
| 46 | Haupt Well Drlg Inc. | — | 2 | 1,723 |
| 47 | Lovelace Well Drilling Inc. | — | 2 | 2,504 |
| 48 | Retzlaff Well Drilling Inc. | — | 2 | 2,917 |
| 49 | Roger Weber | — | 2 | 2,293 |
| 50 | Raymond Young JR | — | 2 | 1,853 |
| 51 | Wayne W Salefsky | — | 2 | 484 |
| 52 | Keifenheim Howard E | — | 2 | 124 |
| 53 | Van DE Yacht Bill | — | 2 | 99 |
| 54 | Wells BY Welch | — | 2 | 43 |
| 55 | T & T Well Drilling & Pump Service | — | 1 | 1,347 |
| 56 | Hyink Well Drilling Inc. | — | 1 | 2,521 |
| 57 | Michael Hartman | — | 1 | 5,782 |
| 58 | Zielieke Well Drilling Inc. | — | 1 | 2,207 |
| 59 | Michael G Hartman | — | 1 | 1,407 |
| 60 | Roger P Weber | — | 1 | 1,191 |
| 61 | Terry Farago | — | 1 | 635 |
| 62 | Edwin D Greenfield | — | 1 | 570 |
| 63 | Soik R J Plbg @ Htg Inc. | — | 1 | 410 |
| 64 | Stephan D Keifenheim | — | 1 | 41 |
| 65 | Salefsky Wayne W | — | 1 | 26 |
Ranked by wells drilled in Winnebago County since 2016 (then all-time), from the full WI DNR
record. A ★ marks a featured sponsor — sponsors must appear in the county record to be listed, and
the ranking below them is never reordered.
Who drills the most wells in Winnebago County?
Wells BY Welch - Bentley WD LLC has drilled the most Winnebago County wells in the recent record — 259 since 2016, 306 in the county all-time.
How many well drilling companies work in Winnebago County?
65 companies in the WI DNR record have drilled wells in Winnebago County; 16 of them have drilled somewhere in Wisconsin since 2022. Smaller operators below the record threshold may also serve the area.
How deep is a typical well in Winnebago County?
The median drilled depth in Winnebago County is 145 ft, based on 16,334 recorded wells. Depths, water levels, and yields are on the Winnebago County wells page.
Well depths, static water levels, tested yields, and drilling cost estimates for this county live on
the Winnebago County wells page.
Drill in Winnebago County?
If your company is on this list, your profile is free to claim — confirm your details and add your
contact information so Winnebago County property owners reach you directly.
Claim your profile Free to claim · built from WI DNR public well-log records.