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Best well drillers in Defiance County, Ohio

Not a pay-to-play list: these are the 57 drilling companies with wells on record in Defiance County, ranked by wells actually drilled here — 2,647 logged wells in the Ohio Department of Natural Resources (ODNR) Division of Geological Survey water-well log database (records as of 2026-08-13). Every number links back to the public record.

57companies on record
19active since 2022
2,647wells in county record
#CompanyIn Defiance Co. since 2016All-time in countyStatewide
1 Layman Drilling LLC 170 744 2,040
2 Watson Well Drilling 141 952 5,204
3 Kaufman Well Drilling Inc. 38 127 314
4 Maas Brothers Drilling 17 17 518
5 Watson Drilling 6 9 88
6 Crabtree Drilling 5 5 4,742
7 Boes Water Well Drilling 4 4 348
8 Sever Water Well Drilling 2 60 4,250
9 Able Well & Pump 2 6 1,093
10 Ortman Drilling Inc. 2 3 26
11 Benchmark Drilling 2 3 340
12 Wyse Well Drilling Inc. 1 59 681
13 Jamison Well Drilling Inc. 1 4 11,219
14 Quinter Well Drilling LLC 1 1 12,078
15 Seismic Drilling Co. Inc. 1 1 5,783
16 Wiley Well Drilling Inc. 1 1 6,637
17 G H Bierly Inc. 1 1 4,064
18 Lalonde Well Drilling — 102 547
19 Spitnale Well Drilling — 81 465
20 Rupp Well Drilling Service — 71 307
21 Frey Earth Boring — 69 409
22 Stoepfel Drilling LLC — 61 2,504
23 Jesse & Sons Well Drilling — 56 59
24 Gilbert's Well Drilling Co. — 33 186
25 Mark Stoepfel Drilling — 32 1,000
26 Arthur's Well Drilling — 29 552
27 Layman Well Drilling — 29 111
28 Castor's Well Service — 15 100
29 Thompson (M E) — 9 664
30 Dan D Frey & Son — 8 59
31 Frey Well Drilling — 6 223
32 Derck Drilling — 6 82
33 Shaffer (Byron) Well Drilling — 5 647
34 Dellinger Bros LLC — 4 1,036
35 Roth Earth Boring — 4 231
36 Calvin (Denver O) — 3 127
37 Vernon Grim Well Drilling — 3 27
38 Steinman Water Well Drilling — 2 523
39 Amos-Vollmar Drilling — 2 315
40 Shaffer (William) Well Drilling — 2 86
41 Frey (Ernest E) — 2 82
42 Flinner Drilling Inc. — 1 8,459
43 Walter's Well Drilling — 1 1,507
44 Davis Drilling — 1 415
45 E R Eppinger Drilling — 1 206
46 Wilson (Jim) Well Drilling — 1 1,464
47 Gilbert Well Drilling — 1 668
48 Arthur E Plummer & Son — 1 560
49 Vollmar (Kenneth) — 1 366
50 Mack Drilling — 1 353
51 Layne Ohio (Layne Christensen) — 1 346
52 Wilson Plbg Htg & Cooling — 1 145
53 Dawson Drilling — 1 135
54 Patterson Drilling — 1 92
55 Dunbar Drilling Co. — 1 85
56 Vess Drilling — 1 61
57 Tucker's Sales & Service Inc. — 1 29

Ranked by wells drilled in Defiance County since 2016 (then all-time), from the full ODNR 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 Defiance County?

Layman Drilling LLC has drilled the most Defiance County wells in the recent record — 170 since 2016, 744 in the county all-time.

How many well drilling companies work in Defiance County?

57 companies in the ODNR record have drilled wells in Defiance County; 19 of them have drilled somewhere in Ohio since 2022. Smaller operators below the record threshold may also serve the area.

How deep is a typical well in Defiance County?

The median drilled depth in Defiance County is 88 ft, based on 2,786 recorded wells. Depths, water levels, and yields are on the Defiance County wells page.

Well depths, static water levels, tested yields, and drilling cost estimates for this county live on the Defiance County wells page.

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