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NAICS 237990 · Other Heavy and Civil Engineering Construction

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General engineering contractors in Ontario, CA

70 general engineering contractors in Ontario, CA. Every listing checked against the issuer's record, in the published order.

  1. Aten Construction Inc

    ActiveA General Engineering+1

    Jurupa Valley, CA · WC ✓ · 10 mi away

    Proof for Aten Construction Inc
    License
    CSLB 753114
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; B General Building
    Expires
    Sep 30, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Jurupa Valley, CA · serves California
    Phone
    (951) 522-0864
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  2. B & D Construction Co Inc

    ActiveA General Engineering+2

    Upland, CA · WC ✓ · 6 mi away

    Proof for B & D Construction Co Inc
    License
    CSLB 776709
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; C21 Building Moving/Demolition; HAZ Hazardous Substance Removal
    Expires
    Mar 31, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Upland, CA · serves California
    Phone
    (909) 949-0360
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  3. B&D Equipment Rental & Engineering Inc

    ActiveA General Engineering+1

    Upland, CA · WC exempt · 6 mi away

    Proof for B&D Equipment Rental & Engineering Inc
    License
    CSLB 326942
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; HAZ Hazardous Substance Removal
    Expires
    Jan 31, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Exempt: no employees
    Where
    Upland, CA · serves California
    Phone
    (909) 949-0360
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  4. B V Construction Inc

    ActiveA General Engineering+1

    Upland, CA · WC exempt · 6 mi away

    Proof for B V Construction Inc
    License
    CSLB 862134
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; C21 Building Moving/Demolition
    Expires
    Aug 31, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Exempt: no employees
    Where
    Upland, CA · serves California
    Phone
    (909) 949-0360
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  5. Barza Construction Inc

    ActiveA General Engineering+1

    Pomona, CA · WC ✓ · 9 mi away

    Proof for Barza Construction Inc
    License
    CSLB 1053906
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; B General Building
    Expires
    Dec 31, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Pomona, CA · serves California
    Phone
    (909) 562-1117
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  6. Bcent Inc

    ActiveC7 Low Voltage Systems+1

    Chino, CA · WC ✓ · 5 mi away

    Proof for Bcent Inc
    License
    CSLB 880689
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C7 Low Voltage Systems; C31 Construction Zone Traffic Control
    Expires
    Mar 31, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Chino, CA · serves California
    Phone
    (909) 704-4929
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  7. Becerra Santiago Lemos

    ActiveA General Engineering+1

    Fontana, CA · WC exempt · 9 mi away

    Proof for Becerra Santiago Lemos
    License
    CSLB 543600
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; B General Building
    Expires
    Feb 28, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Exempt: no employees
    Where
    Fontana, CA · serves California
    Phone
    (909) 823-1971
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  8. Beck Jeremy Contracting

    ActiveA General Engineering+2

    Norco, CA · WC exempt · 8 mi away

    Proof for Beck Jeremy Contracting
    License
    CSLB 985294
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; D06 Concrete Related Services; HAZ Hazardous Substance Removal
    Expires
    Jul 31, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Exempt: no employees
    Where
    Norco, CA · serves California
    Phone
    (714) 336-2586
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  9. Benson Mark a

    ActiveA General Engineering

    Corona, CA · WC exempt · 8 mi away

    Proof for Benson Mark a
    License
    CSLB 965379
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering
    Expires
    Sep 30, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Exempt: no employees
    Where
    Corona, CA · serves California
    Phone
    (562) 762-7370
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  10. Bertagna Lee and Smith Inc

    ActiveA General Engineering+2

    Norco, CA · WC ✓ · 8 mi away

    Proof for Bertagna Lee and Smith Inc
    License
    CSLB 1018596
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; B General Building; HAZ Hazardous Substance Removal
    Expires
    Sep 30, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Norco, CA · serves California
    Phone
    (951) 520-3332
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  11. Big Sky Electric / Filanc a Joint Venture

    ActiveA General Engineering+1

    Upland, CA · WC ✓ · 6 mi away

    Proof for Big Sky Electric / Filanc a Joint Venture
    License
    CSLB 932532
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; C10 Electrical
    Expires
    May 31, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Upland, CA · serves California
    Phone
    (909) 694-0432
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  12. Big Sky Electric Inc

    ActiveA General Engineering+1

    Upland, CA · WC ✓ · 6 mi away

    Proof for Big Sky Electric Inc
    License
    CSLB 925689
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; C10 Electrical
    Expires
    Dec 31, 2026
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Upland, CA · serves California
    Phone
    (909) 694-0432
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  13. Bionki a D Inc

    ActiveA General Engineering

    Pomona, CA · WC ✓ · 9 mi away

    Proof for Bionki a D Inc
    License
    CSLB 982320
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering
    Expires
    Mar 31, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Pomona, CA · serves California
    Phone
    (909) 740-4056
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  14. Bjs Construction Co Inc

    ActiveA General Engineering+1

    Jurupa Valley, CA · WC exempt · 10 mi away

    Proof for Bjs Construction Co Inc
    License
    CSLB 1125469
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; B General Building
    Expires
    Aug 31, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Exempt: no employees
    Where
    Jurupa Valley, CA · serves California
    Phone
    (909) 702-6551
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  15. Blok Modular Constructors Inc

    ActiveA General Engineering+1

    Upland, CA · WC ✓ · 6 mi away

    Proof for Blok Modular Constructors Inc
    License
    CSLB 1054345
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; B General Building
    Expires
    Jun 30, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Upland, CA · serves California
    Phone
    (888) 256-5663
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  16. Boberg Engineering & Contracting Inc

    ActiveA General Engineering+2

    Corona, CA · WC ✓ · 8 mi away

    Proof for Boberg Engineering & Contracting Inc
    License
    CSLB 805863
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; C12 Earthwork and Paving; C21 Building Moving/Demolition
    Expires
    Mar 31, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Corona, CA · serves California
    Phone
    (714) 993-7001
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  17. Bonilla Equipment Inc

    ActiveA General Engineering

    Chino, CA · WC ✓ · 6 mi away

    Proof for Bonilla Equipment Inc
    License
    CSLB 972690
    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
    Chino, CA · serves California
    Phone
    (562) 755-7752
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  18. Born Construction Inc

    ActiveA General Engineering+1

    Rancho Cucamonga, CA · WC ✓ · 7 mi away

    Proof for Born Construction Inc
    License
    CSLB 490869
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; B General Building
    Expires
    Aug 31, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Rancho Cucamonga, CA · serves California
    Phone
    (909) 732-3132
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  19. Braeger Construction Inc

    ActiveA General Engineering+2

    Upland, CA · WC ✓ · 6 mi away

    Proof for Braeger Construction Inc
    License
    CSLB 290219
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; B General Building; C27 Landscaping
    Expires
    Jul 31, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Upland, CA · serves California
    Phone
    (909) 621-4795
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  20. Bryant George

    ActiveA General Engineering+3

    Alta Loma, CA · WC ✓ · 8 mi away

    Proof for Bryant George
    License
    CSLB 421278
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; B General Building; C21 Building Moving/Demolition; HAZ Hazardous Substance Removal
    Expires
    Jan 31, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Alta Loma, CA · serves California
    Phone
    (909) 944-3517
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record

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