you asked:
General engineering contractors in Walnut, CA
25 general engineering contractors in Walnut, CA. Every listing checked against the issuer's record, in the published order.
Grigolla Construction
San Dimas, CA · WC exempt · 6 mi away
Proof for Grigolla Construction
- License
- CSLB 840594
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering
- Expires
- Jun 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- San Dimas, CA · serves California
- Phone
- (909) 447-8530
- Listing
- Built from public records. Not claimed yet, so call them directly.
Grigolla S J Construction Co Inc
LA Verne, CA · WC ✓ self-insured · 9 mi away
Proof for Grigolla S J Construction Co Inc
- License
- CSLB 462356
- 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
- Self-insured for workers' comp
- Where
- LA Verne, CA · serves California
- Phone
- (909) 596-6406
- Listing
- Built from public records. Not claimed yet, so call them directly.
Grigolla & Sons Construction Co Inc
San Dimas, CA · WC ✓ · 6 mi away
Proof for Grigolla & Sons Construction Co Inc
- License
- CSLB 514132
- 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 Dimas, CA · serves California
- Phone
- (909) 447-8530
- Listing
- Built from public records. Not claimed yet, so call them directly.
Gwas
Pomona, CA · WC ✓ · 6 mi away
Proof for Gwas
- License
- CSLB 955608
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C27 Landscaping; C31 Construction Zone Traffic Control; C49 Tree and Palm; D49 Tree Service; D59 Hydroseed Spraying
- Expires
- Dec 31, 2026
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Pomona, CA · serves California
- Phone
- (909) 623-8226
- Listing
- Built from public records. Not claimed yet, so call them directly.
Hampton Tedder Electric Commercial
Montclair, CA · WC ✓ · 9 mi away
Proof for Hampton Tedder Electric Commercial
- License
- CSLB 1146693
- 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
- Nov 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Montclair, CA · serves California
- Phone
- (909) 993-5998
- Listing
- Built from public records. Not claimed yet, so call them directly.
Hampton Tedder Electric Company
Montclair, CA · WC ✓ · 9 mi away
Proof for Hampton Tedder Electric Company
- License
- CSLB 288589
- 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
- Jan 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Montclair, CA · serves California
- Phone
- (909) 628-1253
- Listing
- Built from public records. Not claimed yet, so call them directly.
Hampton Tedder Technical Services Inc
Montclair, CA · WC ✓ · 9 mi away
Proof for Hampton Tedder Technical Services Inc
- License
- CSLB 961649
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C10 Electrical; C31 Construction Zone Traffic Control
- Expires
- Jun 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Montclair, CA · serves California
- Phone
- (909) 628-1256
- Listing
- Built from public records. Not claimed yet, so call them directly.
Harbor Environmental Group Inc
Brea, CA · WC ✓ · 8 mi away
Proof for Harbor Environmental Group Inc
- License
- CSLB 936557
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; ASB Asbestos Certification; B General Building; 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
- Brea, CA · serves California
- Phone
- (714) 257-9680
- Listing
- Built from public records. Not claimed yet, so call them directly.
Heavy Iron Contracting LLC
San Dimas, CA · WC ✓ · 6 mi away
Proof for Heavy Iron Contracting LLC
- License
- CSLB 1104415
- 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
- San Dimas, CA · serves California
- Phone
- (951) 830-9703
- Listing
- Built from public records. Not claimed yet, so call them directly.
Henkels & Mccoy West LLC
Pomona, CA · WC ✓ · 6 mi away
Proof for Henkels & Mccoy West LLC
- License
- CSLB 1100318
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C10 Electrical; D31 Pole Installation and Maintenance
- Expires
- Jan 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Pomona, CA · serves California
- Phone
- (909) 517-3011
- Listing
- Built from public records. Not claimed yet, so call them directly.
Heritage General Contracting Inc
Glendora, CA · WC ✓ · 6 mi away
Proof for Heritage General Contracting Inc
- License
- CSLB 1061808
- 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
- Glendora, CA · serves California
- Phone
- (714) 618-7706
- Listing
- Built from public records. Not claimed yet, so call them directly.
Holcomb Engineering Contractors Inc
Baldwin Park, CA · WC ✓ · 8 mi away
Proof for Holcomb Engineering Contractors Inc
- License
- CSLB 741410
- 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
- Baldwin Park, CA · serves California
- Phone
- (626) 337-1177
- Listing
- Built from public records. Not claimed yet, so call them directly.
Horizon Construction
Chino Hills, CA · WC exempt · 10 mi away
Proof for Horizon Construction
- License
- CSLB 823663
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building
- Expires
- Sep 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Chino Hills, CA · serves California
- Phone
- (909) 548-1218
- Listing
- Built from public records. Not claimed yet, so call them directly.
Icr Service Inc
Brea, CA · 7 mi away
Proof for Icr Service Inc
- SAM.gov registration
- US-GSA-SAM XXQENNL77X71
- Issuer
- US-GSA-SAM
- Status
- Active
- Class
- Corporation registered in SAM.gov
- Expires
- Jun 1, 2027
- Checked
- Oct 23, 2026
- Where
- Brea, CA · serves California
- Listing
- Built from public records. Not claimed yet, so call them directly.
Industrial Waste Utilization LLC
Montclair, CA · WC ✓ · 9 mi away
Proof for Industrial Waste Utilization LLC
- License
- CSLB 1152705
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; HAZ Hazardous Substance Removal
- Expires
- Mar 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Montclair, CA · serves California
- Phone
- (909) 984-9984
- Listing
- Built from public records. Not claimed yet, so call them directly.
Insight Environmental Engineering & Construction Inc
Brea, CA · WC ✓ · 7 mi away
Proof for Insight Environmental Engineering & Construction Inc
- License
- CSLB 864944
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C57 Well Drilling; HAZ Hazardous Substance Removal
- Expires
- Sep 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Brea, CA · serves California
- Phone
- (714) 678-6700
- Listing
- Built from public records. Not claimed yet, so call them directly.
Intren West LLC
Pomona, CA · WC ✓ · 6 mi away
Proof for Intren West LLC
- License
- CSLB 1103190
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C10 Electrical; D31 Pole Installation and Maintenance
- Expires
- Apr 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Pomona, CA · serves California
- Phone
- (909) 517-3011
- Listing
- Built from public records. Not claimed yet, so call them directly.
Issaco Builders
Brea, CA · WC exempt · 7 mi away
Proof for Issaco Builders
- License
- CSLB 853232
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building
- Expires
- Jan 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Brea, CA · serves California
- Phone
- (714) 330-0859
- Listing
- Built from public records. Not claimed yet, so call them directly.
J D C
Baldwin Park, CA · WC ✓ · 8 mi away
Proof for J D C
- License
- CSLB 737593
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C36 Plumbing; D06 Concrete Related Services
- Expires
- Aug 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Baldwin Park, CA · serves California
- Phone
- (626) 480-8900
- Listing
- Built from public records. Not claimed yet, so call them directly.
J F Engineering Inc
Pomona, CA · WC ✓ · 6 mi away
Proof for J F Engineering Inc
- License
- CSLB 873691
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C21 Building Moving/Demolition
- Expires
- Mar 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Pomona, CA · serves California
- Phone
- (909) 721-7698
- Listing
- Built from public records. Not claimed yet, so call them directly.
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