Licensed contractors in Ontario, California
Contractors with an active California license and a business address in Ontario (San Bernardino County). Each listing shows what the state has on file.
878active licenses
51%with current insurance
917total records
- 4s Epoxy & Polish Concrete INC
Active Insurance current
- 8a Construction Services INC
Active Insurance current
- A - C Reglazing
Active Insurance current
- A - Industrial Design / Build
Active No insurance on file
- A & Son's Concrete INC
Active Insurance current
- A 2 Z Plumbing
Active No insurance on file
- A C Spraggins Engineering & Underground INC
Active Insurance current
- A G Heating & Air
Active Insurance current
- A T S Construction
Active No insurance on file
- A-1 Delivery CO
Active No insurance on file
- A&l Systems LLC
Active No insurance on file
- A2z Builders Group INC
Active No insurance on file
- Aa HVAC INC
Active Insurance current
- Aag Pump Services
Active No insurance on file
- Abba Communications
Active No insurance on file
- Abc Resources INC
Active Insurance expired
- Abl Contracting INC
Active Insurance current
- Able Electric
Active No insurance on file
- Abm Electrical Power Services LLC
Active Insurance expiring soon
- Aboveground Solutions INC
Active Insurance current
- Ac Power 1 INC
Active Insurance current
- Ace Engineering INC
Active Insurance current
- Aces Construction
Active No insurance on file
- Acosta Pipeline INC
Active Insurance current
- Action Restoration
Active Insurance current
- Adaptive Controls Services
Active Insurance current
- Advance Construction
Active No insurance on file
- Advanced Electrical Innovations
Active No insurance on file
- Advanced Monitoring INC
Active Insurance current
- Advanced Technology INC
Active Insurance current
- Advanco Fire Protection INC
Active Insurance current
- Affordable Services
Active Insurance current
- Ag Building and Remodeling INC
Active No insurance on file
- Agility Integration Corporation
Active Insurance current
- Aguilar Tree Service LLC
Active Insurance current
- Ahome Construction INC
Active No insurance on file
- Air Bee HVAC
Active Insurance current
- Air Control Specialties INC
Active Insurance current
- Air Control Systems INC
Active Insurance current
- Airite Heating and Air Conditioning INC
Active Insurance current
- Airtong Heating & Cooling
Active Insurance current
- Ajb Concrete & Masonry Construction
Active No insurance on file
- Al Construction & Design
Active No insurance on file
- Alberto Garcia Construction Services INC DBA a G Construction
Active Insurance current
- Alberto Garcia Contractor
Active No insurance on file
- Alc Roofing
Active Insurance current
- Alex Electrical Services INC
Active No insurance on file
- Alexander Installation & Technology Services LLC
Active Insurance current
- Alexandru Lapos
Active No insurance on file
- Alfa Power Electric
Active No insurance on file
- Alfonso Gonzalez Jr
Active No insurance on file
- Aljohn Builders
Active No insurance on file
- All - Right Roofing LLC
Active Insurance expiring soon
- All Coast Epoxy LLC
Active No insurance on file
- All Finish Coating INC
Active Insurance expired
- All Pro Cooling Heating Plumbing & Electrical
Active Insurance current
- All Tech Commercial Pool Service & Repair
Active No insurance on file
- All Trade Decking
Active No insurance on file
- Alliance Communication Services INC
Active Insurance current
- Allstar Adu & General Builder
Active No insurance on file
- Allwayss
Active No insurance on file
- Alpha Omega Plumbing
Active No insurance on file
- Alvarado Drywall INC
Active Insurance current
- Ambak Construction
Active No insurance on file
- American General Builders
Active No insurance on file
- American Jetting Services INC
Active Insurance current
- American Stainless
Active Insurance current
- Amilcar M Castillo
Active No insurance on file
- Amins Construction INC
Active No insurance on file
- Amj Mechanical
Active Insurance current
- Anda
Active No insurance on file
- Andrade Painting & Decorating
Active Insurance current
- Andrew George Turner
Active No insurance on file
- Anna Earley DBA Epoxy Construction Services
Active No insurance on file
- Ansary Aboubakare
Active Insurance current
- Anton Construction
Active No insurance on file
- Any Color You Like Paint CO
Active Insurance current
- Apex Concrete
Active Insurance current
- Aranda's Sanitation Systems
Active Insurance current
- Arc Electrical Contractors INC
Active Insurance current
- Arco Glass Plus INC
Active Insurance current
- Arena Construction Cleanup
Active Insurance current
- Arias Electrical Services
Active No insurance on file
- Arijet Corporation
Active No insurance on file
- Artisan Construction
Active No insurance on file
- Ashka Design & Construction
Active No insurance on file
- Astera Kitchen and Bath Cabinets
Active Insurance current
- Axxess Door Corp
Active Insurance current
- B & M Roofing Stripping Services
Active Insurance current
- B Fries Construction INC
Active Insurance current
- B Z B Construction Company
Active No insurance on file
- B3d Electric
Active No insurance on file
- Balto Development INC
Active Insurance current
- Barnes Fiber Communications
Active No insurance on file
- Baumann Waterworks
Active No insurance on file
- Baywood Construction CO
Active Insurance current
- Bc7 Construction INC
Active Insurance expiring soon
- Bcbc Construction
Active Insurance current
- Bear Paw Landscape
Active Insurance expiring soon
- Belanger Electrical Services
Active No insurance on file
Last checked against state records on Oct 4, 2026. How we get this data.