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General engineering contractors in Ontario, CA
63 general engineering contractors in Ontario, CA. Every listing checked against the issuer's record, in the published order.
Buccaneer Builders
Riverside, CA · WC exempt · 10 mi away
Proof for Buccaneer Builders
- License
- CSLB 718006
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C4 Boiler, Hot Water Heating and Steam Fitting; C16 Fire Protection; C36 Plumbing
- Expires
- Jan 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Riverside, CA · serves California
- Phone
- (951) 640-8542
- Listing
- Built from public records. Not claimed yet, so call them directly.
Buck John
Eastvale, CA · WC exempt · 8 mi away
Proof for Buck John
- License
- CSLB 981035
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; D12 Synthetic Products; D34 Prefabricated Equipment
- Expires
- Feb 28, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Eastvale, CA · serves California
- Phone
- (909) 292-6998
- Listing
- Built from public records. Not claimed yet, so call them directly.
Buntich Mladen Construction Co Inc
Upland, CA · WC ✓ · 6 mi away
Proof for Buntich Mladen Construction Co Inc
- License
- CSLB 532604
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building
- Expires
- Jun 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Upland, CA · serves California
- Phone
- (909) 920-9977
- Listing
- Built from public records. Not claimed yet, so call them directly.
Burrtec Waste Industries Inc
Fontana, CA · WC ✓ · 9 mi away
Proof for Burrtec Waste Industries Inc
- License
- CSLB 791805
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering
- Expires
- Feb 28, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Fontana, CA · serves California
- Phone
- (909) 429-4200
- Listing
- Built from public records. Not claimed yet, so call them directly.
C L S Landscape Management Inc
Montclair, CA · WC ✓ · 6 mi away
Proof for C L S Landscape Management Inc
- License
- CSLB 650883
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C27 Landscaping; D49 Tree Service
- Expires
- Jul 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Montclair, CA · serves California
- Phone
- (909) 628-3005
- Listing
- Built from public records. Not claimed yet, so call them directly.
C M B Structures Inc
Alta Loma, CA · WC ✓ · 7 mi away
Proof for C M B Structures Inc
- License
- CSLB 613977
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering
- Expires
- May 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Alta Loma, CA · serves California
- Phone
- (909) 980-4538
- Listing
- Built from public records. Not claimed yet, so call them directly.
C M Peich Inc
Chino, CA · WC ✓ · 6 mi away
Proof for C M Peich Inc
- License
- CSLB 710757
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering
- Expires
- Jul 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Chino, CA · serves California
- Phone
- (909) 597-6200
- Listing
- Built from public records. Not claimed yet, so call them directly.
C P C Inc
Upland, CA · WC exempt · 6 mi away
Proof for C P C Inc
- License
- CSLB 862027
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C34 Pipeline
- Expires
- Jul 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Upland, CA · serves California
- Phone
- (909) 981-1091
- Listing
- Built from public records. Not claimed yet, so call them directly.
Cable Brothers Inc
Rancho Cucamonga, CA · WC ✓ · 10 mi away
Proof for Cable Brothers Inc
- License
- CSLB 880335
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C7 Low Voltage Systems
- Expires
- Jul 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Rancho Cucamonga, CA · serves California
- Phone
- (909) 899-6475
- Listing
- Built from public records. Not claimed yet, so call them directly.
Cal - Line Construction Inc
Fontana, CA · WC ✓ · 10 mi away
Proof for Cal - Line Construction Inc
- License
- CSLB 1012130
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building
- Expires
- Mar 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Fontana, CA · serves California
- Phone
- (424) 224-3417
- Listing
- Built from public records. Not claimed yet, so call them directly.
Cal West Underground Inc
Norco, CA · WC ✓ · 8 mi away
Proof for Cal West Underground Inc
- License
- CSLB 767650
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering
- Expires
- Aug 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Norco, CA · serves California
- Phone
- (951) 371-6775
- Listing
- Built from public records. Not claimed yet, so call them directly.
Cali Paving Engineers
Riverside, CA · WC exempt · 10 mi away
Proof for Cali Paving Engineers
- License
- CSLB 1120206
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering
- Expires
- May 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Riverside, CA · serves California
- Phone
- (951) 233-3360
- Listing
- Built from public records. Not claimed yet, so call them directly.
Cali State Paving Inc
Riverside, CA · WC ✓ · 10 mi away
Proof for Cali State Paving Inc
- License
- CSLB 1015670
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C12 Earthwork and Paving
- Expires
- Jun 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Riverside, CA · serves California
- Phone
- (714) 757-8012
- Listing
- Built from public records. Not claimed yet, so call them directly.
California Landscape & Design Inc
Upland, CA · WC ✓ · 6 mi away
Proof for California Landscape & Design Inc
- License
- CSLB 597267
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C23 Ornamental Metal; C27 Landscaping; C53 Swimming Pool; D06 Concrete Related Services; D12 Synthetic Products
- Expires
- Sep 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Upland, CA · serves California
- Phone
- (909) 949-1601
- Listing
- Built from public records. Not claimed yet, so call them directly.
California Rampworks
Upland, CA · WC ✓ · 6 mi away
Proof for California Rampworks
- License
- CSLB 973748
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building
- Expires
- Jun 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Upland, CA · serves California
- Phone
- (909) 949-1601
- Listing
- Built from public records. Not claimed yet, so call them directly.
California Skateparks
Upland, CA · WC ✓ · 6 mi away
Proof for California Skateparks
- License
- CSLB 799795
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C27 Landscaping
- Expires
- Sep 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Upland, CA · serves California
- Phone
- (909) 949-1601
- Listing
- Built from public records. Not claimed yet, so call them directly.
California Skateparks
Upland, CA · WC ✓ · 6 mi away
Proof for California Skateparks
- License
- CSLB 962150
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C27 Landscaping
- Expires
- Jun 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Upland, CA · serves California
- Phone
- (909) 949-1601
- Listing
- Built from public records. Not claimed yet, so call them directly.
Calstate Pipeline Engineering
Chino Hills, CA · WC ✓ · 10 mi away
Proof for Calstate Pipeline Engineering
- License
- CSLB 1030879
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering
- Expires
- Sep 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Chino Hills, CA · serves California
- Phone
- (626) 523-2004
- Listing
- Built from public records. Not claimed yet, so call them directly.
Canon Coating Co
Norco, CA · WC ✓ · 8 mi away
Proof for Canon Coating Co
- License
- CSLB 405188
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C32 Parking and Highway Improvement
- Expires
- Jul 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Norco, CA · serves California
- Phone
- (951) 735-4119
- Listing
- Built from public records. Not claimed yet, so call them directly.
Caropino Jerry
Rancho Cucamonga, CA · WC exempt · 8 mi away
Proof for Caropino Jerry
- License
- CSLB 861303
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C21 Building Moving/Demolition
- Expires
- Jul 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Rancho Cucamonga, CA · serves California
- Phone
- (310) 491-4630
- Listing
- Built from public records. Not claimed yet, so call them directly.
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