Best well drillers in Monterey County, California

Not a pay-to-play list: these are the 148 drilling companies with wells on record in Monterey County, ranked by wells actually drilled here — 10,034 logged wells in the California Department of Water Resources (DWR) Well Completion Reports database (records as of 2026-10-02). Every number links back to the public record.

148companies on record

56active since 2022

10,034wells in county record

#	Company	In Monterey Co. since 2016	All-time in county	Statewide
1	Granite Drilling Company	133	426	480
2	Bertram Drilling Inc.	95	98	1,171
3	Coast Drilling Inc.	94	134	278
4	Maggiora Bros Drilling Inc.	81	905	4,676
5	Filipponi-Thompson Drilling Inc.	53	209	2,135
6	Pacific Coast Well Drilling Inc.	41	46	338
7	Guardino Well Drilling Inc.	35	68	1,756
8	Miller Drilling Co.	31	271	1,778
9	Dougherty Pump & Drilling Inc.	23	406	486
10	Business Midstate Drillers	22	22	119
11	Eaton Drilling Co. LLC	21	349	3,792
12	Salinas Pump Company	20	599	712
13	Corrpro Companies Inc.	18	18	737
14	American Construction And Supply Inc.	16	54	1,697
15	Melville L E & Sons Drilling Co. Inc.	13	214	262
16	Fred Ash & Sons Lynch Pump Co.	9	64	118
17	J & H Drilling Co. Inc.	9	9	994
18	Roy Alsop Pump & Drilling	6	164	173
19	Myers Brothers Well Drilling Inc.	6	30	2,865
20	Myers Well Drilling Inc.	5	11	763
21	Environmental Control Associates	5	5	277
22	Fred Ash & Sons	4	1,040	1,217
23	Zim Industries Inc. Dba Bakersfield Well & Pump Co.	4	14	1,721
24	Gregg Drilling LLC	3	3	564
25	Pitcher Services LLC	3	3	117
26	Aqua Engineering	2	458	641
27	Cascade Drilling L P	2	17	2,827
28	Stonehouse Well Drilling	2	3	157
29	Quality Well Drillers Inc.	2	2	3,526
30	Big Valley Drilling	1	200	294
31	Chappell Pump & Supply Inc.	1	84	927
32	Kenneth Roman	1	76	320
33	Clifford Pump & Well Company	1	63	117
34	Bradley & Sons Inc.	1	9	3,631
35	Landino Drilling Co.	1	9	151
36	Mazzi Well Drilling	1	6	210
37	Guardino Pump & Well	1	3	482
38	Barbour Well Inc.	1	2	32
39	Kleinfelder Inc.	1	2	54
40	Parks Water Resources	1	1	391
41	Geocentric Drilling Inc.	1	1	81
42	Torrent Resources CA Incorporated	1	1	54
43	Nor - Cal Pump & Well Drilling Inc.	1	1	250
44	Best Drilling And Pump Inc.	1	1	248
45	C F Dougherty	—	542	685
46	Signal Drilling Company	—	500	8,301
47	Raymond Alsop	—	396	397
48	Roy V Alsop & Son Inc.	—	347	349
49	Valley Pump & Drilling Co.	—	286	475
50	Fred W Porter & Son	—	200	207
51	West Coast Drilling	—	112	288
52	Carmel Valley Drilling & Engineering	—	109	111
53	Freedom General Repair & Pump Shop	—	92	690
54	Roman Well Drilling	—	71	242
55	Fred W Porter & Sons	—	65	105
56	L. E. Melville & Son, Inc.	—	57	80
57	C & N Pump & Well Co.	—	54	697
58	J. T. Robinett & Sons	—	49	67
59	Tide Tool & Engr. Co.	—	48	128
60	Cullum Systems Incorporated	—	46	277
61	Roy V Alsop	—	45	46
62	Rauch Drilling Company Inc.	—	44	520
63	Gregg Drilling & Testing Inc.	—	42	4,828
64	W D C Exploration & Wells	—	41	2,421
65	Nunes Well Service	—	41	46
66	Gullord Arthur Water Well Drilling	—	39	42
67	Pioneer Pump And Well Co.	—	36	195
68	Western Well Drilling Co. Ltd	—	35	842
69	Sydney Geels IT Corporation	—	34	78
70	George Chambers	—	33	51
71	Exploration Geoservices Inc.	—	32	956
72	H W Bence	—	32	47
73	The Pump Shop Inc.	—	29	33
74	Moss Roscoe Company	—	28	1,220
75	Bailey Drilling & Pump Inc.	—	26	53
76	DE LA Grange & Sons Inc.	—	25	263
77	Bill Belknap	—	23	2,758
78	Cache Creek Drilling	—	22	247
79	Scott Xxx PC Exploration Inc.	—	21	154
80	Robert Haylock "RH" Well Drilling	—	19	48
81	Filipponi & Thompson Drilling Company	—	17	303
82	West Hazmat Drilling Corp	—	15	1,702
83	Landino Construction And Well Drilling	—	15	703
84	Grabow Well Drilling Company	—	14	2,651
85	Arthur & Orum Well Drilling Inc.	—	14	3,219
86	Pitcher Drilling Co.	—	14	1,232
87	Myers Brothers Inc.	—	12	796
88	Murphy Pump & Supply	—	11	31
89	Beylik Drilling & Pump Service	—	9	1,267
90	Precision Drilling Co.	—	9	71
91	Pro-H20 Drilling And Pump Company	—	8	39
92	Cascade Drilling Inc. - California	—	8	3,167
93	Boart Longyear Company	—	7	172
94	Woodward Drilling Company Inc.	—	7	1,542
95	Layne Christensen Company	—	6	2,363
96	Farm Pump And Irrigation Company Inc.	—	6	451
97	Mel Meyer	—	6	101,127
98	Layne-Western Co. Inc.	—	6	255
99	Old Creek Drilling	—	6	94
100	Farwest Corrosion Control Company	—	5	2,667
101	Bfr Associates	—	5	5,621
102	Whitten Pumps Inc.	—	5	874
103	Seanaco Inc.	—	5	327
104	V & W Drilling	—	5	310
105	Don Redfeairn Drilling Co.	—	5	186
106	B & W Drilling	—	5	132
107	Central Coast Drilling	—	5	122
108	Sprague Pump Co.	—	5	66
109	Pollock's Drilling & Pump Service	—	5	39
110	Johnson Drilling Co.	—	4	11,872
111	Myers Reverse, Inc.	—	4	2,389
112	John A Brandt	—	4	143
113	Landino Well Drilling	—	4	73
114	Bosearello Enterprises	—	4	30
115	Floyd V Wells	—	3	1,771
116	Rottman Drilling Co.	—	3	1,331
117	D B Drilling Co.	—	3	973
118	S A Andresen All Terrain Exploration	—	3	468
119	Clovis Pump & Water Well	—	3	323
120	Bayland Drillers	—	2	317
121	Spectrum Exploration Inc.	—	2	307
122	Redfeairn R L Drilling	—	2	195
123	S/G Testing Laboratories Inc.	—	2	187
124	Ralph E Anderson	—	2	171
125	Santa Rosa Drilling Co.	—	2	77
126	Dexter Machinery	—	2	53
127	Well Tech	—	2	32
128	Canepa And Sons Inc.	—	1	3,178
129	Earth Flow Drilling Company	—	1	2,194
130	Consolidated Testing Laboratories Inc.	—	1	1,406
131	Starr Drilling And Pump Co.	—	1	875
132	Johnson Teddy J	—	1	797
133	Midway Drilling & Pump Company	—	1	753
134	C O Brose Well Drilling	—	1	698
135	Knapp & Graham Inc.	—	1	596
136	Williams Well Drilling	—	1	376
137	Melvin Slate Water Well Drilling	—	1	310
138	George Chamberlain	—	1	256
139	Beylik Drilling Inc.	—	1	174
140	Golden Empire Drilling	—	1	168
141	Xxx	—	1	113
142	Valley Pump & Dairy Systems Inc.	—	1	79
143	Myers And Summers	—	1	75
144	Stang Hydronics Inc.	—	1	56
145	John W. Nairn	—	1	39
146	Cofferdam Unwatering Corporation	—	1	32
147	Nor-Cal Pump & Well Service	—	1	26
148	P/D Drilling Co.	—	1	25

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

Granite Drilling Company has drilled the most Monterey County wells in the recent record — 133 since 2016, 426 in the county all-time.

How many well drilling companies work in Monterey County?

148 companies in the DWR record have drilled wells in Monterey County; 56 of them have drilled somewhere in California since 2022. Smaller operators below the record threshold may also serve the area.

How deep is a typical well in Monterey County?

The median drilled depth in Monterey County is 310 ft, based on 11,254 recorded wells. Depths, water levels, and yields are on the Monterey County wells page.

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

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