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NAICS 237990 · Other Heavy and Civil Engineering Construction

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General engineering contractors in Clayton, CA

9 general engineering contractors in Clayton, CA; 1,359 within 30 miles. Every listing checked against the issuer's record, in the published order.

  1. Pacific Developers & Construction Inc

    ActiveA General Engineering+1

    Alamo, CA · WC ✓ · 7 mi away

    Proof for Pacific Developers & Construction Inc
    License
    CSLB 773317
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; B General Building
    Expires
    May 31, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Alamo, CA · serves California
    Phone
    (925) 389-8965
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  2. Pacific - Mountain Contractors of California Inc

    ActiveA General Engineering+1

    Concord, CA · WC exempt · 7 mi away

    Proof for Pacific - Mountain Contractors of California Inc
    License
    CSLB 921539
    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
    Exempt: no employees
    Where
    Concord, CA · serves California
    Phone
    (925) 682-6419
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  3. Pacific Waste Services Inc

    ActiveA General Engineering

    Danville, CA · WC ✓ · 9 mi away

    Proof for Pacific Waste Services Inc
    License
    CSLB 716238
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering
    Expires
    Dec 31, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Danville, CA · serves California
    Phone
    (925) 244-0392
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  4. Plant Hazardous Services Inc

    ActiveA General Engineering+6

    Alamo, CA · WC ✓ · 7 mi away

    Proof for Plant Hazardous Services Inc
    License
    CSLB 863366
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; ASB Asbestos Certification; B General Building; C2 Insulation and Acoustical; C21 Building Moving/Demolition; C22 Asbestos Abatement; HAZ Hazardous Substance Removal
    Expires
    Aug 31, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Alamo, CA · serves California
    Phone
    (925) 586-4878
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  5. Plant Reclamation

    ActiveA General Engineering+4

    Antioch, CA · WC ✓ · 8 mi away

    Proof for Plant Reclamation
    License
    CSLB 1039599
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; ASB Asbestos Certification; C21 Building Moving/Demolition; C22 Asbestos Abatement; HAZ Hazardous Substance Removal
    Expires
    May 31, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Antioch, CA · serves California
    Phone
    (510) 233-6552
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  6. Pleasant Hill Electric Inc

    ActiveA General Engineering+1

    Pleasant Hill, CA · WC exempt · 8 mi away

    Proof for Pleasant Hill Electric Inc
    License
    CSLB 976106
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; C10 Electrical
    Expires
    Nov 30, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Exempt: no employees
    Where
    Pleasant Hill, CA · serves California
    Phone
    (707) 685-1277
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  7. Preferred Plumbing & Drain

    ActiveA General Engineering+1

    Concord, CA · WC ✓ · 7 mi away

    Proof for Preferred Plumbing & Drain
    License
    CSLB 848878
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; C36 Plumbing
    Expires
    Oct 31, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Concord, CA · serves California
    Phone
    (925) 677-0900
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  8. Priith Engineering

    ActiveA General Engineering

    Antioch, CA · WC exempt · 8 mi away

    Proof for Priith Engineering
    License
    CSLB 896523
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering
    Expires
    May 31, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Exempt: no employees
    Where
    Antioch, CA · serves California
    Phone
    (925) 595-5153
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  9. Production Excavating

    ActiveA General Engineering

    Danville, CA · WC exempt · 9 mi away

    Proof for Production Excavating
    License
    CSLB 643587
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering
    Expires
    Apr 30, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Exempt: no employees
    Where
    Danville, CA · serves California
    Phone
    (925) 575-0255
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  10. R C Underground Inc

    ActiveA General Engineering

    Walnut Creek, CA · WC ✓ · 7 mi away

    Proof for R C Underground Inc
    License
    CSLB 886390
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering
    Expires
    Dec 31, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Walnut Creek, CA · serves California
    Phone
    (925) 705-7499
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  11. R J Gordon Construction Inc

    ActiveA General Engineering

    Pleasant Hill, CA · WC ✓ · 8 mi away

    Proof for R J Gordon Construction Inc
    License
    CSLB 616851
    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
    Pleasant Hill, CA · serves California
    Phone
    (925) 680-8660
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  12. Ramos Mary a

    ActiveA General Engineering+1

    Walnut Creek, CA · WC exempt · 9 mi away

    Proof for Ramos Mary a
    License
    CSLB 492317
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; HAZ Hazardous Substance Removal
    Expires
    May 31, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Exempt: no employees
    Where
    Walnut Creek, CA · serves California
    Phone
    (510) 427-7366
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  13. Rkh Constructors Inc

    ActiveA General Engineering+2

    Alamo, CA · WC ✓ · 7 mi away

    Proof for Rkh Constructors Inc
    License
    CSLB 522195
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; B General Building; C8 Concrete
    Expires
    Dec 31, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Alamo, CA · serves California
    Phone
    (925) 765-6464
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  14. Rl Contracting

    ActiveA General Engineering+1

    Pleasant Hill, CA · WC exempt · 8 mi away

    Proof for Rl Contracting
    License
    CSLB 967985
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; B General Building
    Expires
    Nov 30, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Exempt: no employees
    Where
    Pleasant Hill, CA · serves California
    Phone
    (707) 628-2188
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  15. Roberts-Obayashi James E Corporation

    ActiveA General Engineering+1

    Danville, CA · WC ✓ · 9 mi away

    Proof for Roberts-Obayashi James E Corporation
    License
    CSLB 358519
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; B General Building
    Expires
    Jul 31, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Danville, CA · serves California
    Phone
    (925) 820-0600
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  16. Rudolph & Sons

    ActiveA General Engineering+1

    Antioch, CA · WC exempt · 8 mi away

    Proof for Rudolph & Sons
    License
    CSLB 813850
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; B General Building
    Expires
    Oct 31, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Exempt: no employees
    Where
    Antioch, CA · serves California
    Phone
    (925) 525-5184
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  17. S & H Construction Inc

    ActiveA General Engineering+5

    Danville, CA · WC ✓ · 9 mi away

    Proof for S & H Construction Inc
    License
    CSLB 786358
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; B General Building; C9 Drywall; C10 Electrical; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing
    Expires
    Jun 30, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Danville, CA · serves California
    Phone
    (510) 579-7382
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  18. S2Serm LLC

    ActiveA General Engineering

    Danville, CA · WC ✓ · 9 mi away

    Proof for S2Serm LLC
    License
    CSLB 1146389
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering
    Expires
    Nov 30, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Danville, CA · serves California
    Phone
    (925) 362-3041
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  19. Schaeffer Christopher R

    ActiveA General Engineering

    Walnut Creek, CA · WC exempt · 8 mi away

    Proof for Schaeffer Christopher R
    License
    CSLB 1101897
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering
    Expires
    Mar 31, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Exempt: no employees
    Where
    Walnut Creek, CA · serves California
    Phone
    (925) 360-8479
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  20. Scott Mark Construction Inc

    ActiveA General Engineering+3

    Pleasant Hill, CA · WC ✓ · 8 mi away

    Proof for Scott Mark Construction Inc
    License
    CSLB 682814
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    A General Engineering; B General Building; C15 Flooring and Floor Covering; C28 Lock and Security Equipment
    Expires
    Dec 31, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Pleasant Hill, CA · serves California
    Phone
    (925) 944-0502
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record

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