you asked:
General engineering contractors in Castro Valley, CA
17 general engineering contractors in Castro Valley, CA; 1,880 within 30 miles. Every listing checked against the issuer's record, in the published order.
Max Construction
Dublin, CA · WC ✓ · 9 mi away
Proof for Max Construction
- License
- CSLB 910025
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C10 Electrical; C16 Fire Protection
- Expires
- May 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Dublin, CA · serves California
- Phone
- (510) 415-4580
- Listing
- Built from public records. Not claimed yet, so call them directly.
Mc Guire and Hester
Oakland, CA · WC ✓ · 7 mi away
Proof for Mc Guire and Hester
- License
- CSLB 95879
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C21 Building Moving/Demolition; C27 Landscaping; C31 Construction Zone Traffic Control; HAZ Hazardous Substance Removal
- Expires
- Nov 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Oakland, CA · serves California
- Phone
- (510) 632-7676
- Listing
- Built from public records. Not claimed yet, so call them directly.
Mc Nely Construction Company
San Leandro, CA · WC ✓ · 6 mi away
Proof for Mc Nely Construction Company
- License
- CSLB 461594
- 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
- San Leandro, CA · serves California
- Phone
- (510) 562-6300
- Listing
- Built from public records. Not claimed yet, so call them directly.
Mcguire and Hester - Power Engineering Construction Company
Oakland, CA · WC exempt · 7 mi away
Proof for Mcguire and Hester - Power Engineering Construction Company
- License
- CSLB 1129563
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C21 Building Moving/Demolition; C27 Landscaping; C31 Construction Zone Traffic Control; HAZ Hazardous Substance Removal
- Expires
- Nov 30, 2026
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Oakland, CA · serves California
- Phone
- (510) 632-7676
- Listing
- Built from public records. Not claimed yet, so call them directly.
Mcguire & Hester
Oakland, CA · 7 mi away
Proof for Mcguire & Hester
- SAM.gov registration
- US-GSA-SAM L414QNYHF5H5
- Issuer
- US-GSA-SAM
- Status
- Active
- Class
- Corporation registered in SAM.gov
- Expires
- Jun 9, 2027
- Checked
- Oct 23, 2026
- Where
- Oakland, CA · serves California
- Listing
- Built from public records. Not claimed yet, so call them directly.
Mcrae K M Inc
Hayward, CA · WC ✓ · 6 mi away
Proof for Mcrae K M Inc
- License
- CSLB 424355
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C13 Fencing; C57 Well Drilling; D09 Drilling, Blasting and Oil Field Work; HAZ Hazardous Substance Removal
- Expires
- Jun 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Hayward, CA · serves California
- Phone
- (510) 537-6539
- Listing
- Built from public records. Not claimed yet, so call them directly.
Mid-Coast Transit Constructors
Alameda, CA · WC ✓ · 10 mi away
Proof for Mid-Coast Transit Constructors
- License
- CSLB 987377
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering
- Expires
- Oct 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Alameda, CA · serves California
- Phone
- (510) 748-1870
- Listing
- Built from public records. Not claimed yet, so call them directly.
Modern Railway Systems
Alameda, CA · WC ✓ · 10 mi away
Proof for Modern Railway Systems
- License
- CSLB 968510
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C10 Electrical
- Expires
- Dec 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Alameda, CA · serves California
- Phone
- (510) 748-1870
- Listing
- Built from public records. Not claimed yet, so call them directly.
Modern Railway Systems Herzog Technologies Inc a Joint Venture
Alameda, CA · WC exempt · 10 mi away
Proof for Modern Railway Systems Herzog Technologies Inc a Joint Venture
- License
- CSLB 1049104
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C10 Electrical
- Expires
- Jan 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Alameda, CA · serves California
- Phone
- (510) 748-1870
- Listing
- Built from public records. Not claimed yet, so call them directly.
Modutecture Inc
Hayward, CA · WC ✓ · 6 mi away
Proof for Modutecture Inc
- License
- CSLB 1067380
- 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
- Hayward, CA · serves California
- Phone
- (650) 444-4440
- Listing
- Built from public records. Not claimed yet, so call them directly.
Monterey and Mwh Constructors, a Joint Venture
Oakland, CA · WC ✓ · 9 mi away
Proof for Monterey and Mwh Constructors, a Joint Venture
- License
- CSLB 1063926
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; ASB Asbestos Certification; C16 Fire Protection; C20 Warm-Air Heating, Ventilating and Air-Conditioning; HAZ Hazardous Substance Removal
- Expires
- Mar 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Oakland, CA · serves California
- Phone
- (510) 632-3173
- Listing
- Built from public records. Not claimed yet, so call them directly.
Monterey Mechanical CO
Oakland, CA · 9 mi away
Proof for Monterey Mechanical CO
- SAM.gov registration
- US-GSA-SAM KK9NQK7V9JH5
- Issuer
- US-GSA-SAM
- Status
- Active
- Class
- Corporation registered in SAM.gov
- Expires
- Jan 7, 2027
- Checked
- Oct 23, 2026
- Where
- Oakland, CA · serves California
- Listing
- Built from public records. Not claimed yet, so call them directly.
Monterey Mechanical Co
Oakland, CA · WC ✓ · 9 mi away
Proof for Monterey Mechanical Co
- License
- CSLB 388361
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C4 Boiler, Hot Water Heating and Steam Fitting; C12 Earthwork and Paving; C16 Fire Protection; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing; C42 Sanitation System; C43 Sheet Metal
- Expires
- Mar 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Oakland, CA · serves California
- Phone
- (510) 632-3173
- Listing
- Built from public records. Not claimed yet, so call them directly.
Norcal Rock Inc
Oakland, CA · WC ✓ via leasing firm · 10 mi away
Proof for Norcal Rock Inc
- License
- CSLB 915550
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C21 Building Moving/Demolition
- Expires
- May 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Covered through an employee leasing firm
- Where
- Oakland, CA · serves California
- Phone
- (510) 636-9860
- Listing
- Built from public records. Not claimed yet, so call them directly.
Northwest Design and Construction Inc
Hayward, CA · WC exempt · 6 mi away
Proof for Northwest Design and Construction Inc
- License
- CSLB 1158905
- 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
- Exempt: no employees
- Where
- Hayward, CA · serves California
- Phone
- (415) 518-4342
- Listing
- Built from public records. Not claimed yet, so call them directly.
Nugent Constructors Inc
Danville, CA · WC exempt · 9 mi away
Proof for Nugent Constructors Inc
- License
- CSLB 599590
- 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
- Exempt: no employees
- Where
- Danville, CA · serves California
- Phone
- (925) 683-3712
- Listing
- Built from public records. Not claimed yet, so call them directly.
Olson and Co Steel
San Leandro, CA · WC ✓ · 6 mi away
Proof for Olson and Co Steel
- License
- CSLB 453003
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C51 Structural Steel
- Expires
- Feb 29, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- San Leandro, CA · serves California
- Phone
- (510) 567-2200
- Listing
- Built from public records. Not claimed yet, so call them directly.
Ouyang General Engineering Inc
San Leandro, CA · WC ✓ · 6 mi away
Proof for Ouyang General Engineering Inc
- License
- CSLB 1136523
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C10 Electrical; C16 Fire Protection; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing
- Expires
- Apr 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- San Leandro, CA · serves California
- Phone
- (510) 213-9645
- Listing
- Built from public records. Not claimed yet, so call them directly.
P J Plumbing Inc
Oakland, CA · WC ✓ · 7 mi away
Proof for P J Plumbing Inc
- License
- CSLB 992574
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C8 Concrete; C36 Plumbing; C42 Sanitation System
- Expires
- Apr 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Oakland, CA · serves California
- Phone
- (510) 415-5774
- Listing
- Built from public records. Not claimed yet, so call them directly.
Pac Bay Environmental Services Inc
Oakland, CA · WC ✓ · 10 mi away
Proof for Pac Bay Environmental Services Inc
- License
- CSLB 1034033
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; ASB Asbestos Certification; B General Building; C21 Building Moving/Demolition; HAZ Hazardous Substance Removal
- Expires
- Dec 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Oakland, CA · serves California
- Phone
- (510) 947-2800
- Listing
- Built from public records. Not claimed yet, so call them directly.
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