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Well drilling contractors in California
725 well drilling contractors listed in California, each checked against the issuer's record. In the published order.
Confluence
Rio Linda, CA · WC ✓
Proof for Confluence
- License
- CSLB 1035255
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C8 Concrete; C12 Earthwork and Paving; C57 Well Drilling
- Expires
- Jan 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Rio Linda, CA · serves California
- Phone
- (707) 639-7709
- Listing
- Built from public records. Not claimed yet, so call them directly.
Confluence Environmental Inc
Rio Linda, CA · WC ✓
Proof for Confluence Environmental Inc
- License
- CSLB 913194
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C8 Concrete; C12 Earthwork and Paving; C57 Well Drilling; HAZ Hazardous Substance Removal
- Expires
- Apr 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Rio Linda, CA · serves California
- Phone
- (916) 760-7641
- Listing
- Built from public records. Not claimed yet, so call them directly.
Conner Lee Well Drilling a Partnership
Cedarville, CA · WC exempt
Proof for Conner Lee Well Drilling a Partnership
- License
- CSLB 809312
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C57 Well Drilling; D21 Machinery and Pumps
- Expires
- Jun 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Cedarville, CA · serves California
- Phone
- (530) 640-0119
- Listing
- Built from public records. Not claimed yet, so call them directly.
Conners Well Drilling
Adin, CA · WC exempt
Proof for Conners Well Drilling
- License
- CSLB 569367
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C57 Well Drilling; D21 Machinery and Pumps
- Expires
- May 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Adin, CA · serves California
- Phone
- (530) 299-3336
- Listing
- Built from public records. Not claimed yet, so call them directly.
Conners Well Drilling
Alturas, CA · WC ✓
Proof for Conners Well Drilling
- License
- CSLB 709156
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C57 Well Drilling; D21 Machinery and Pumps
- Expires
- Jul 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Alturas, CA · serves California
- Phone
- (530) 640-0521
- Listing
- Built from public records. Not claimed yet, so call them directly.
Conners Well Drilling
Canby, CA
Proof for Conners Well Drilling
- USDOT registration
- US-DOT 2288600
- Issuer
- US-DOT
- Status
- Active
- Class
- Private motor carrier
- Checked
- Oct 23, 2026
- Where
- Canby, CA · serves California
- Phone
- (530) 640-0521
- Listing
- Built from public records. Not claimed yet, so call them directly.
Consolidated Testing Laboratories Inc
Porterville, CA · WC ✓ via leasing firm
Proof for Consolidated Testing Laboratories Inc
- License
- CSLB 544541
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C57 Well Drilling
- Expires
- Oct 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Covered through an employee leasing firm
- Where
- Porterville, CA · serves California
- Phone
- (559) 592-3555
- Listing
- Built from public records. Not claimed yet, so call them directly.
Continental Property Services Inc
Newport Beach, CA · WC exempt
Proof for Continental Property Services Inc
- License
- CSLB 1023751
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C57 Well Drilling
- Expires
- Feb 28, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Newport Beach, CA · serves California
- Phone
- (949) 756-2073
- Listing
- Built from public records. Not claimed yet, so call them directly.
Converse Construction Inc
Redding, CA · WC ✓
Proof for Converse Construction Inc
- License
- CSLB 842863
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C10 Electrical; C47 General Manufactured Housing; C57 Well Drilling; D21 Machinery and Pumps
- Expires
- Jul 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Redding, CA · serves California
- Phone
- (530) 378-5591
- Listing
- Built from public records. Not claimed yet, so call them directly.
Cook Pump and Well Service
Paso Robles, CA · WC exempt
Proof for Cook Pump and Well Service
- License
- CSLB 1140304
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C57 Well Drilling
- Expires
- Jul 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Paso Robles, CA · serves California
- Phone
- (805) 400-0151
- Listing
- Built from public records. Not claimed yet, so call them directly.
Cooper Well Services
Esparto, CA · WC exempt
Proof for Cooper Well Services
- License
- CSLB 1108427
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C57 Well Drilling
- Expires
- Aug 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Esparto, CA · serves California
- Phone
- (530) 701-6339
- Listing
- Built from public records. Not claimed yet, so call them directly.
Cornish Contracting
Bethel Island, CA · WC exempt
Proof for Cornish Contracting
- License
- CSLB 807527
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C57 Well Drilling
- Expires
- Sep 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Bethel Island, CA · serves California
- Phone
- (925) 595-2420
- Listing
- Built from public records. Not claimed yet, so call them directly.
Corrosion Integrity LLC
Pleasant Grove, CA · WC ✓
Proof for Corrosion Integrity LLC
- License
- CSLB 1057714
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C10 Electrical; C57 Well Drilling
- Expires
- Jul 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Pleasant Grove, CA · serves California
- Phone
- (213) 336-5867
- Listing
- Built from public records. Not claimed yet, so call them directly.
Cpi Geologic & Engineering Consulting
San Gabriel, CA · WC ✓
Proof for Cpi Geologic & Engineering Consulting
- License
- CSLB 772519
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C57 Well Drilling; HAZ Hazardous Substance Removal
- Expires
- Dec 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- San Gabriel, CA · serves California
- Phone
- (626) 309-9932
- Listing
- Built from public records. Not claimed yet, so call them directly.
Cr Industries
Kerman, CA · WC ✓
Proof for Cr Industries
- License
- CSLB 1054971
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C10 Electrical; C57 Well Drilling; D21 Machinery and Pumps
- Expires
- Jun 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Kerman, CA · serves California
- Phone
- (559) 846-5531
- Listing
- Built from public records. Not claimed yet, so call them directly.
Cr Well Drilling Inc
Kerman, CA
Proof for Cr Well Drilling Inc
- USDOT registration
- US-DOT 3944539
- Issuer
- US-DOT
- Status
- Active
- Class
- Private motor carrier
- Checked
- Oct 23, 2026
- Where
- Kerman, CA · serves California
- Phone
- (559) 846-5531
- Listing
- Built from public records. Not claimed yet, so call them directly.
Crisp Well Drilling
Fowler, CA · WC exempt
Proof for Crisp Well Drilling
- License
- CSLB 1045131
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C57 Well Drilling
- Expires
- Oct 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Fowler, CA · serves California
- Phone
- (559) 901-9654
- Listing
- Built from public records. Not claimed yet, so call them directly.
Crisp Well Drilling
Fowler, CA
Proof for Crisp Well Drilling
- USDOT registration
- US-DOT 3241542
- Issuer
- US-DOT
- Status
- Active
- Class
- Private motor carrier
- Checked
- Oct 23, 2026
- Where
- Fowler, CA · serves California
- Phone
- (559) 901-9654
- Listing
- Built from public records. Not claimed yet, so call them directly.
Crosetti Excavation, Inc
Ukiah, CA · WC exempt
Proof for Crosetti Excavation, Inc
- License
- CSLB 1150162
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C12 Earthwork and Paving; C13 Fencing; C31 Construction Zone Traffic Control; C34 Pipeline; C42 Sanitation System; C57 Well Drilling; HAZ Hazardous Substance Removal
- Expires
- Feb 29, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Ukiah, CA · serves California
- Phone
- (707) 989-8974
- Listing
- Built from public records. Not claimed yet, so call them directly.
Crown Drilling Services Inc
Visalia, CA · WC ✓
Proof for Crown Drilling Services Inc
- License
- CSLB 1010983
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C57 Well Drilling
- Expires
- Oct 31, 2026
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Visalia, CA · serves California
- Phone
- (559) 972-1494
- Listing
- Built from public records. Not claimed yet, so call them directly.
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