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.
Select Pavers Inc
Union City, CA · WC ✓ · 8 mi away
Proof for Select Pavers Inc
- License
- CSLB 995727
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C34 Pipeline; D06 Concrete Related Services
- Expires
- Dec 31, 2026
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Union City, CA · serves California
- Phone
- (510) 397-0908
- Listing
- Built from public records. Not claimed yet, so call them directly.
Serafix Engineering Contractors Inc
San Ramon, CA · WC ✓ · 6 mi away
Proof for Serafix Engineering Contractors Inc
- License
- CSLB 1019229
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C10 Electrical; C31 Construction Zone Traffic Control; HAZ Hazardous Substance Removal
- Expires
- Oct 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- San Ramon, CA · serves California
- Phone
- (925) 552-8253
- Listing
- Built from public records. Not claimed yet, so call them directly.
Sewer Master Engineering Inc
Oakland, CA · WC ✓ · 8 mi away
Proof for Sewer Master Engineering Inc
- License
- CSLB 874840
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building
- Expires
- Apr 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Oakland, CA · serves California
- Phone
- (510) 385-6539
- Listing
- Built from public records. Not claimed yet, so call them directly.
Shangri - LA Builder Inc
Dublin, CA · WC ✓ · 9 mi away
Proof for Shangri - LA Builder Inc
- License
- CSLB 998407
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C10 Electrical; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing
- Expires
- Nov 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Dublin, CA · serves California
- Phone
- (415) 315-4948
- Listing
- Built from public records. Not claimed yet, so call them directly.
Silman Industries
San Leandro, CA · WC ✓ · 6 mi away
Proof for Silman Industries
- License
- CSLB 906985
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C10 Electrical; C51 Structural Steel; D21 Machinery and Pumps
- Expires
- Nov 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- San Leandro, CA · serves California
- Phone
- (510) 347-4800
- Listing
- Built from public records. Not claimed yet, so call them directly.
Silva's Pipeline Inc
Hayward, CA · WC ✓ · 6 mi away
Proof for Silva's Pipeline Inc
- License
- CSLB 229986
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering
- Expires
- Jun 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Hayward, CA · serves California
- Phone
- (510) 786-2722
- Listing
- Built from public records. Not claimed yet, so call them directly.
Simmons Travis J
Hayward, CA · WC ✓ · 6 mi away
Proof for Simmons Travis J
- License
- CSLB 950233
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C8 Concrete; C51 Structural Steel
- Expires
- Jul 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Hayward, CA · serves California
- Phone
- (510) 670-9504
- Listing
- Built from public records. Not claimed yet, so call them directly.
Sitti Logistics LLC
Hayward, CA · 5 mi away
Proof for Sitti Logistics LLC
- SAM.gov registration
- US-GSA-SAM U3C5U45LPQY3
- Issuer
- US-GSA-SAM
- Status
- Active
- Class
- Corporation registered in SAM.gov
- Expires
- Jul 25, 2027
- Checked
- Oct 23, 2026
- Where
- Hayward, CA · serves California
- Listing
- Built from public records. Not claimed yet, so call them directly.
Soares Construction
San Ramon, CA · WC exempt · 6 mi away
Proof for Soares Construction
- License
- CSLB 1087391
- 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
- San Ramon, CA · serves California
- Phone
- (510) 912-5515
- Listing
- Built from public records. Not claimed yet, so call them directly.
Solcom Communications Inc
Hayward, CA · WC ✓ via leasing firm · 5 mi away
Proof for Solcom Communications Inc
- License
- CSLB 982007
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C7 Low Voltage Systems
- Expires
- Mar 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Covered through an employee leasing firm
- Where
- Hayward, CA · serves California
- Phone
- (510) 940-2490
- Listing
- Built from public records. Not claimed yet, so call them directly.
Spencon Construction Inc
Danville, CA · WC ✓ · 9 mi away
Proof for Spencon Construction Inc
- License
- CSLB 820205
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering
- Expires
- May 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Danville, CA · serves California
- Phone
- (925) 984-2581
- Listing
- Built from public records. Not claimed yet, so call them directly.
Sshc a Consortium Comprised of Siemens Mobility Inc and Swh a
Alameda, CA · WC exempt · 10 mi away
Proof for Sshc a Consortium Comprised of Siemens Mobility Inc and Swh a
- License
- CSLB 1128603
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C10 Electrical
- Expires
- Nov 30, 2026
- 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.
St Francis Electric Inc
San Leandro, CA · WC ✓ · 6 mi away
Proof for St Francis Electric Inc
- License
- CSLB 335324
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C10 Electrical
- Expires
- Aug 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- San Leandro, CA · serves California
- Phone
- (510) 639-0639
- Listing
- Built from public records. Not claimed yet, so call them directly.
St Francis Electric LLC
San Leandro, CA · WC ✓ · 6 mi away
Proof for St Francis Electric LLC
- License
- CSLB 1003811
- 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
- San Leandro, CA · serves California
- Phone
- (510) 639-0639
- Listing
- Built from public records. Not claimed yet, so call them directly.
Stacy and Witbeck/Ghilotti Bros a Joint Venture
Alameda, CA · WC exempt · 10 mi away
Proof for Stacy and Witbeck/Ghilotti Bros a Joint Venture
- License
- CSLB 1110041
- 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
- Alameda, CA · serves California
- Phone
- (510) 748-1870
- Listing
- Built from public records. Not claimed yet, so call them directly.
Stacy and Witbeck Inc
Alameda, CA · WC ✓ · 10 mi away
Proof for Stacy and Witbeck Inc
- License
- CSLB 414305
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C10 Electrical
- Expires
- Nov 30, 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.
Stacy-Modern Transit Constructors a Joint Venture
Alameda, CA · WC exempt · 10 mi away
Proof for Stacy-Modern Transit Constructors a Joint Venture
- License
- CSLB 1147332
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C10 Electrical
- Expires
- Dec 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.
Stacy Witbeck/Innovative Construction Solutions a Joint Venture
Alameda, CA · WC exempt · 10 mi away
Proof for Stacy Witbeck/Innovative Construction Solutions a Joint Venture
- License
- CSLB 1143828
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C21 Building Moving/Demolition; HAZ Hazardous Substance Removal
- Expires
- Sep 30, 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.
Stacy Witbeck / Mcguire and Hester a Joint Venture
Alameda, CA · WC exempt · 10 mi away
Proof for Stacy Witbeck / Mcguire and Hester a Joint Venture
- License
- CSLB 1133082
- 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
- Expires
- Feb 28, 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.
Stellar B G Inc
Oakland, CA · WC ✓ · 10 mi away
Proof for Stellar B G Inc
- License
- CSLB 650852
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C16 Fire Protection; C39 Roofing
- Expires
- Oct 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Oakland, CA · serves California
- Phone
- (510) 344-6356
- Listing
- Built from public records. Not claimed yet, so call them directly.
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