Fire protection contractors in Ontario, CA
13 licenses with the C-16 classification list Ontario (San Bernardino County) as their address with the state, 13 of them active. Active licenses with nothing flagged come first.
- Advanco Fire Protection IncC-16 · C-34 · #631600 Ontario · San Bernardino County Active
- California Blaze Protection LLCC-16 · #1135952 Ontario · San Bernardino County Active
- Dmg Fire ProtectionC-10 · C-16 · #1062041 Ontario · San Bernardino County Active
- Fairchild Plumbing & Mechanical IncA · C-16 · C-36 · #606705 Ontario · San Bernardino County Active
- Fire Solution Masters CorpC-16 · #1149321 Ontario · San Bernardino County Active
- Gc Construction & Fire Protection IncA · B · C-16 · #1113745 Ontario · San Bernardino County Active
- Guerrero Fire Protection IncC-16 · #996238 Ontario · San Bernardino County Active
- Hci Services IncC-10 · C-16 · #1046082 Ontario · San Bernardino County Active
- Hci Sprinkler IncC-10 · C-16 · #1005968 Ontario · San Bernardino County Active
- Hci Systems IncC-7 · C-10 · C-16 · #905493 Ontario · San Bernardino County Active
- Jn Construction IncA · B · C-10 · C-16 +2 · #1001396 Ontario · San Bernardino County Active
- Jnsd Construction IncB · C-10 · C-16 · C-36 · #1080741 Ontario · San Bernardino County Active
- Southland Fire Protection CoC-16 · #774844 Ontario · San Bernardino County Active
Source: CSLB license file, Nov 8, 2026All trades in Ontario