you asked:
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.
Foundation Power Inc
Oakley, CA · WC ✓ · 14 mi away
Proof for Foundation Power Inc
- License
- CSLB 1095561
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering
- Expires
- Aug 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Oakley, CA · serves California
- Phone
- (925) 754-6633
- Listing
- Built from public records. Not claimed yet, so call them directly.
Frost Environmental Abatement
San Ramon, CA · WC ✓ · 12 mi away
Proof for Frost Environmental Abatement
- License
- CSLB 1107337
- 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
- Jul 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- San Ramon, CA · serves California
- Phone
- (510) 376-9783
- Listing
- Built from public records. Not claimed yet, so call them directly.
G I G General Engineering Contractor
Oakley, CA · WC exempt · 14 mi away
Proof for G I G General Engineering Contractor
- License
- CSLB 911582
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering
- Expires
- Feb 29, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Oakley, CA · serves California
- Phone
- (925) 812-1732
- Listing
- Built from public records. Not claimed yet, so call them directly.
G J R Development Co
Moraga, CA · WC ✓ · 12 mi away
Proof for G J R Development Co
- License
- CSLB 430539
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C27 Landscaping
- Expires
- Oct 31, 2026
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Moraga, CA · serves California
- Phone
- (510) 409-3930
- Listing
- Built from public records. Not claimed yet, so call them directly.
G & S Construction
Oakley, CA · WC exempt · 14 mi away
Proof for G & S Construction
- License
- CSLB 1009991
- 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
- Exempt: no employees
- Where
- Oakley, CA · serves California
- Phone
- (925) 679-2264
- Listing
- Built from public records. Not claimed yet, so call them directly.
Gateway Landscape Construction Inc
Pleasanton, CA · WC ✓ · 11 mi away
Proof for Gateway Landscape Construction Inc
- License
- CSLB 1159697
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C27 Landscaping
- Expires
- Aug 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Pleasanton, CA · serves California
- Phone
- (925) 875-0000
- Listing
- Built from public records. Not claimed yet, so call them directly.
Geo Grout Ground Modification Specialist Inc
Pleasanton, CA · WC ✓ · 11 mi away
Proof for Geo Grout Ground Modification Specialist Inc
- License
- CSLB 978265
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering
- Expires
- Oct 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Pleasanton, CA · serves California
- Phone
- (415) 860-9787
- Listing
- Built from public records. Not claimed yet, so call them directly.
Gilbert E E Construction Inc
Martinez, CA · WC ✓ · 13 mi away
Proof for Gilbert E E Construction Inc
- License
- CSLB 801481
- 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
- Martinez, CA · serves California
- Phone
- (925) 228-0317
- Listing
- Built from public records. Not claimed yet, so call them directly.
H M Concrete Inc
Martinez, CA · WC ✓ · 13 mi away
Proof for H M Concrete Inc
- License
- CSLB 723759
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C8 Concrete
- Expires
- Aug 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Martinez, CA · serves California
- Phone
- (925) 372-8148
- Listing
- Built from public records. Not claimed yet, so call them directly.
Hemdan Developers
San Ramon, CA · WC exempt · 12 mi away
Proof for Hemdan Developers
- License
- CSLB 706818
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C10 Electrical
- Expires
- Nov 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- San Ramon, CA · serves California
- Phone
- (925) 705-1163
- Listing
- Built from public records. Not claimed yet, so call them directly.
Horizon Building LLC
San Ramon, CA · WC exempt · 12 mi away
Proof for Horizon Building LLC
- License
- CSLB 875118
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building
- Expires
- Jan 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- San Ramon, CA · serves California
- Phone
- (510) 415-7641
- Listing
- Built from public records. Not claimed yet, so call them directly.
Horizon Industries
Pleasanton, CA · WC exempt · 11 mi away
Proof for Horizon Industries
- License
- CSLB 1154563
- 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
- Exempt: no employees
- Where
- Pleasanton, CA · serves California
- Phone
- (925) 580-6757
- Listing
- Built from public records. Not claimed yet, so call them directly.
Hot Line Construction Inc
Brentwood, CA · 13 mi away
Proof for Hot Line Construction Inc
- SAM.gov registration
- US-GSA-SAM FHG8SNPPKAR5
- Issuer
- US-GSA-SAM
- Status
- Active
- Class
- Corporation registered in SAM.gov
- Expires
- Jan 27, 2027
- Checked
- Oct 23, 2026
- Where
- Brentwood, CA · serves California
- Listing
- Built from public records. Not claimed yet, so call them directly.
Hot Line Construction Inc
Brentwood, CA · WC ✓ · 13 mi away
Proof for Hot Line Construction Inc
- License
- CSLB 710855
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C10 Electrical; C31 Construction Zone Traffic Control; D31 Pole Installation and Maintenance
- Expires
- Aug 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Brentwood, CA · serves California
- Phone
- (925) 634-9333
- Listing
- Built from public records. Not claimed yet, so call them directly.
Howard's Earth Boring Service Inc
San Ramon, CA · WC ✓ · 12 mi away
Proof for Howard's Earth Boring Service Inc
- License
- CSLB 861244
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering
- Expires
- Jul 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- San Ramon, CA · serves California
- Phone
- (925) 766-0065
- Listing
- Built from public records. Not claimed yet, so call them directly.
Hudson Excavation Inc
Brentwood, CA · WC ✓ · 13 mi away
Proof for Hudson Excavation Inc
- License
- CSLB 599907
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering
- Expires
- Nov 30, 2026
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Brentwood, CA · serves California
- Phone
- (925) 666-8966
- Listing
- Built from public records. Not claimed yet, so call them directly.
Icay Inc
Lafayette, CA · WC ✓ · 11 mi away
Proof for Icay Inc
- License
- CSLB 864893
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C21 Building Moving/Demolition
- Expires
- Sep 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Lafayette, CA · serves California
- Phone
- (925) 962-3867
- Listing
- Built from public records. Not claimed yet, so call them directly.
International Swim Center-2026 LLC
Pleasanton, CA · WC ✓ · 11 mi away
Proof for International Swim Center-2026 LLC
- License
- CSLB 1146215
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C53 Swimming Pool
- Expires
- Nov 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Pleasanton, CA · serves California
- Phone
- (925) 828-3100
- Listing
- Built from public records. Not claimed yet, so call them directly.
Ironrock Builders
Martinez, CA · WC ✓ · 13 mi away
Proof for Ironrock Builders
- License
- CSLB 1094279
- 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
- Martinez, CA · serves California
- Phone
- (925) 788-1827
- Listing
- Built from public records. Not claimed yet, so call them directly.
J C Engineering and Drilling
Oakley, CA · WC exempt · 14 mi away
Proof for J C Engineering and Drilling
- License
- CSLB 1026484
- 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
- Oakley, CA · serves California
- Phone
- (925) 382-2305
- Listing
- Built from public records. Not claimed yet, so call them directly.
More cities in California
Free for people · nobody pays to rank. Run one of these businesses? Claim it free.