you asked:
Fire sprinkler contractors in Ontario, CA
12 fire sprinkler contractors in Ontario, CA; 439 within 30 miles. Every listing checked against the issuer's record, in the published order.
St1 Construction Inc
Lake Forest, CA · WC exempt · 25 mi away
Proof for St1 Construction Inc
- License
- CSLB 1141104
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C16 Fire Protection
- Expires
- Jul 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Lake Forest, CA · serves California
- Phone
- (562) 472-5377
- Listing
- Built from public records. Not claimed yet, so call them directly.
Summit Fire Protection Inc
Redlands, CA · WC ✓ · 25 mi away
Proof for Summit Fire Protection Inc
- License
- CSLB 362801
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- Feb 28, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Redlands, CA · serves California
- Phone
- (909) 793-0676
- Listing
- Built from public records. Not claimed yet, so call them directly.
T1 Fire Protection Inc
El Monte, CA · WC exempt · 24 mi away
Proof for T1 Fire Protection Inc
- License
- CSLB 1148449
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C16 Fire Protection
- Expires
- Dec 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- El Monte, CA · serves California
- Phone
- (626) 757-7310
- Listing
- Built from public records. Not claimed yet, so call them directly.
Trilek Electric Incorporated
Hacienda Heights, CA · WC ✓ · 21 mi away
Proof for Trilek Electric Incorporated
- License
- CSLB 711702
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C10 Electrical; C16 Fire Protection
- Expires
- Jun 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Hacienda Heights, CA · serves California
- Phone
- (562) 644-2966
- Listing
- Built from public records. Not claimed yet, so call them directly.
U S a Fire & Safety Inc
Orange, CA · WC ✓ · 21 mi away
Proof for U S a Fire & Safety Inc
- License
- CSLB 902448
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C10 Electrical; C16 Fire Protection
- Expires
- Aug 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Orange, CA · serves California
- Phone
- (877) 400-0098
- Listing
- Built from public records. Not claimed yet, so call them directly.
V M B Fire Protection Co
Redlands, CA · WC ✓ · 25 mi away
Proof for V M B Fire Protection Co
- License
- CSLB 835439
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- Apr 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Redlands, CA · serves California
- Phone
- (909) 983-6700
- Listing
- Built from public records. Not claimed yet, so call them directly.
Ventmart Hoods Master
Santa Ana, CA · WC exempt · 21 mi away
Proof for Ventmart Hoods Master
- License
- CSLB 1020158
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C16 Fire Protection
- Expires
- Jan 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Santa Ana, CA · serves California
- Phone
- (949) 932-0789
- Listing
- Built from public records. Not claimed yet, so call them directly.
Warden Fire Protection Inc
Tustin, CA · WC exempt · 24 mi away
Proof for Warden Fire Protection Inc
- License
- CSLB 1125350
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- Aug 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Tustin, CA · serves California
- Phone
- (949) 315-0279
- Listing
- Built from public records. Not claimed yet, so call them directly.
Wc Fire Protection Inc
Tustin, CA · WC ✓ via leasing firm · 24 mi away
Proof for Wc Fire Protection Inc
- License
- CSLB 1116336
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- Feb 29, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Covered through an employee leasing firm
- Where
- Tustin, CA · serves California
- Phone
- (949) 303-3352
- Listing
- Built from public records. Not claimed yet, so call them directly.
Western Engineering Construction and Facilities Inc
Anaheim, CA · WC ✓ · 24 mi away
Proof for Western Engineering Construction and Facilities Inc
- License
- CSLB 983635
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C10 Electrical; C15 Flooring and Floor Covering; C16 Fire Protection; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing; C38 Refrigeration
- Expires
- May 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Anaheim, CA · serves California
- Phone
- (714) 525-9600
- Listing
- Built from public records. Not claimed yet, so call them directly.
Xl Fire Protection CO
Santa Ana, CA · 25 mi away
Proof for Xl Fire Protection CO
- USDOT registration
- US-DOT 3328244
- Issuer
- US-DOT
- Status
- Active
- Class
- Private motor carrier
- Checked
- Oct 23, 2026
- Where
- Santa Ana, CA · serves California
- Phone
- (714) 554-6132
- Listing
- Built from public records. Not claimed yet, so call them directly.
Xl Fire Protection Co
Santa Ana, CA · WC ✓ · 25 mi away
Proof for Xl Fire Protection Co
- License
- CSLB 311681
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- May 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Santa Ana, CA · serves California
- Phone
- (714) 554-6132
- Listing
- Built from public records. Not claimed yet, so call them directly.
24 / 7 Fire Protection Services Incorporated
Santa Fe Springs, CA · WC ✓ · 27 mi away
Proof for 24 / 7 Fire Protection Services Incorporated
- License
- CSLB 817704
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- Feb 28, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Santa Fe Springs, CA · serves California
- Phone
- (562) 698-3830
- Listing
- Built from public records. Not claimed yet, so call them directly.
3 Element Fire Protection
Rosemead, CA · WC ✓ · 27 mi away
Proof for 3 Element Fire Protection
- License
- CSLB 1142633
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- Aug 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Rosemead, CA · serves California
- Phone
- (626) 497-2604
- Listing
- Built from public records. Not claimed yet, so call them directly.
A F P
Lake Elsinore, CA · WC ✓ · 30 mi away
Proof for A F P
- License
- CSLB 778806
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- Sep 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Lake Elsinore, CA · serves California
- Phone
- (951) 674-0178
- Listing
- Built from public records. Not claimed yet, so call them directly.
A H Accord Group Inc
San Gabriel, CA · WC ✓ · 28 mi away
Proof for A H Accord Group Inc
- License
- CSLB 757675
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C10 Electrical; C16 Fire Protection; C36 Plumbing
- Expires
- Jan 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- San Gabriel, CA · serves California
- Phone
- (626) 272-7058
- Listing
- Built from public records. Not claimed yet, so call them directly.
A to Z Construction
Westminster, CA · WC exempt · 30 mi away
Proof for A to Z Construction
- License
- CSLB 951360
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C16 Fire Protection
- Expires
- Aug 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Westminster, CA · serves California
- Phone
- (714) 775-1837
- Listing
- Built from public records. Not claimed yet, so call them directly.
Action Fire Protection
Garden Grove, CA · 28 mi away
Proof for Action Fire Protection
- USDOT registration
- US-DOT 3364051
- Issuer
- US-DOT
- Status
- Active
- Class
- Private motor carrier
- Checked
- Oct 23, 2026
- Where
- Garden Grove, CA · serves California
- Phone
- (714) 260-0101
- Listing
- Built from public records. Not claimed yet, so call them directly.
Alion Fire Protection
Arcadia, CA · WC exempt · 25 mi away
Proof for Alion Fire Protection
- License
- CSLB 988868
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- Dec 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Arcadia, CA · serves California
- Phone
- (818) 281-3583
- Listing
- Built from public records. Not claimed yet, so call them directly.
All American Backflow Service
Hesperia, CA · WC ✓ · 30 mi away
Proof for All American Backflow Service
- License
- CSLB 958529
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection; C36 Plumbing
- Expires
- Mar 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Hesperia, CA · serves California
- Phone
- (760) 524-1556
- 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.