San Francisco County companies starting with O

73 companies, from California license records. Check any of them on the state's license lookup before you hire.

O C A L BUILDERS INCSan Francisco · General Building Contractor (B)
O DONOGHUE CONSTRUCTION INCSan Francisco · General Building Contractor (B)
O N SSan Francisco · General Building Contractor (B) · Electrical Contractor (C-10)
O'BOYLE CONSTRUCTIONSan Francisco · General Building Contractor (B)
O'BRIEN CONSTRUCTIONSan Francisco · General Building Contractor (B)
O'BRIEN FRANK JSan Francisco · General Building Contractor (B) · Electrical Contractor (C-10) · Plumbing Contractor (C-36)
O'BRIEN MECHANICAL INC IISan Francisco · Specialty Contractor · Plumbing Contractor (C-36)
O'CARROLL KIERANSan Francisco · General Building Contractor (B)
O'CONNOR PIPELINES INCSan Francisco · General Engineering Contractor (A)
O'DONOVAN FINBARR CONSTRUCTIONSan Francisco · General Engineering Contractor (A) · Concrete Contractor (C-8)
O'DONOVAN PLUMBING INCSan Francisco · Fire Protection Contractor (C-16) · Plumbing Contractor (C-36)
O'DRISCOLL J ELECTRICAL INCSan Francisco · Electrical Contractor (C-10)
O'DRISCOLL PLASTERINGSan Francisco · Lathing & Plastering Contractor (C-35)
O'FLYNN ELECTRICSan Francisco · Electrical Contractor (C-10)
O'KANE CONSTRUCTION LLCSan Francisco · General Building Contractor (B)
O'KEEFFE CONSTRUCTION INCSan Francisco · General Building Contractor (B)
O'KEEFFE MECHANICAL CO INCSan Francisco · General Building Contractor (B) · Specialty Contractor · Electrical Contractor (C-10) · HVAC Contractor (C-20) · Plumbing Contractor (C-36) · Sheet Metal Contractor (C-43)
O'NEILL BUCK BUILDERS INCSan Francisco · General Building Contractor (B)
O'NEILL MICHAEL PSan Francisco · General Building Contractor (B)
O'NEILL SEAN CONSTRUCTIONSan Francisco · General Building Contractor (B)
O'REILLY SEAN GENERAL CONTRACTOR INCSan Francisco · General Building Contractor (B)
O'SHAUGHNESSY CONSTRUCTIONSan Francisco · General Building Contractor (B)
O'SHAUGHNESSY MICHAEL CONSTRUCTION INCSan Francisco · General Engineering Contractor (A) · Specialty Contractor
O'SHEA CO HOME GROWN CONSTRUCTION LLCSan Francisco · General Building Contractor (B)
O'SULLIVAN KEN CONSTRUCTION AND RENOVATIONSan Francisco · General Building Contractor (B)
OAK ELECTRIC INCSan Francisco · Electrical Contractor (C-10)
OARCON INCSan Francisco · General Building Contractor (B)General Contracting · Property Development
OCCIDENTAL EXPRESSSan Francisco · General Building Contractor (B) · Electrical Contractor (C-10) · Plumbing Contractor (C-36)
OCCIDENTAL POWER SOLAR & COGENSan Francisco · General Building Contractor (B) · Electrical Contractor (C-10) · Solar Contractor (C-46)Residential solar electric · Commercial solar electric · Battery energy storage systems
OCEAN AIR HEATINGSan Francisco · HVAC Contractor (C-20)
OCEANSIDE SHEETMETAL INCSan Francisco · General Building Contractor (B) · HVAC Contractor (C-20) · Plumbing Contractor (C-36) · Sheet Metal Contractor (C-43)
OCONAIRE CONSTRUCTION INCSan Francisco · General Building Contractor (B)
ODINSON ELECTRIC LLCSan Francisco · Electrical Contractor (C-10)
ODYSSEUS BUILDERSSan Francisco · General Building Contractor (B)
OGDEN INCSan Francisco · Cabinet, Millwork & Finish Carpentry (C-6) · Flooring Contractor (C-15)
OHANLON CONSTRUCTIONSan Francisco · General Building Contractor (B)
OJONG MIRANTISan Francisco · General Building Contractor (B)
OKANE CREGG STEEL INCSan Francisco · Steel Contractor (C-50, C-51)
OKANOVIC GLASSSan Francisco · Glazing Contractor (C-17)
OKELLS PREFAB FIREPLACESan Francisco · Specialty ContractorFireplace sales · Installation · Cleaning
OLCOTE BUILDERS INCSan Francisco · General Building Contractor (B)
OLD SOD CONSTRUCTION INCSan Francisco · General Building Contractor (B) · Concrete Contractor (C-8)
OLEA PLASTERING INCSan Francisco · Lathing & Plastering Contractor (C-35)
OLEXO CONSTRUCTION COMPANYSan Francisco · General Building Contractor (B)
OLIVE CONSTRUCTION INCSan Francisco · General Building Contractor (B)
OLIVE'S CONSTRUCTION LLCSan Francisco · General Building Contractor (B)
OLIVER MACKIN CONSTRUCTIONSan Francisco · General Building Contractor (B)Property prep for selling · Window installation and siding · Kitchen and bath remodeling
OLMEC BUILDERS INCSan Francisco · General Building Contractor (B)
OLSON CONSTRUCTIONSan Francisco · General Building Contractor (B)
OLTRANTI CONSTRUCTION COMPANY INCSan Francisco · General Building Contractor (B)
OMEGA ELECTRIC GROUPSan Francisco · Electrical Contractor (C-10)
ON THE LEVEL CONCRETESan Francisco · Concrete Contractor (C-8)
ON TUNG INCSan Francisco · General Building Contractor (B)
ON-CALL PLUMBING & ROOTERSan Francisco · Plumbing Contractor (C-36)
ONE CONSTRUCTION GENERAL BUILDERS INCSan Francisco · General Building Contractor (B)
ONE HAT ONE HAND LLCSan Francisco · General Building Contractor (B)Metal fabrication · Sculpture · Workplace and interior design
ONE SOURCE PLUMBING & ROOTER INCSan Francisco · Plumbing Contractor (C-36)
ONEILL NIALLSan Francisco · General Building Contractor (B)
ONLY KITCHENS AND BATHS INCSan Francisco · General Building Contractor (B) · Specialty Contractor
OPTICAL COMMUNICATIONS CORPORATIONSan Francisco · Low Voltage Systems Contractor (C-7)
OR PALMORSan Francisco · General Building Contractor (B)
ORAN PLUMBING CORPSan Francisco · Plumbing Contractor (C-36)
ORBIT ELECTRICSan Francisco · Electrical Contractor (C-10) · Plumbing Contractor (C-36)
ORCHARD CONSTRUCTION INCSan Francisco · General Building Contractor (B)
OREBEND BLDRS INCSan Francisco · General Building Contractor (B) · Specialty Contractor · Plumbing Contractor (C-36)
ORFORD CONSTRUCTIONSan Francisco · General Building Contractor (B)
ORGANIC MOTIFS LLCSan Francisco · Landscaping Contractor (C-27)
OROS CONSTRUCTIONSan Francisco · General Building Contractor (B)
ORTIZLAW CONSTRUCTIONSan Francisco · General Building Contractor (B)Remodeling · Construction
OSTAPENKO IGOR VSan Francisco · Electrical Contractor (C-10)
OTEL MADESan Francisco · General Building Contractor (B)
OTT PLUMBINGSan Francisco · Plumbing Contractor (C-36)
OVISCO INCSan Francisco · General Building Contractor (B) · Plumbing Contractor (C-36)

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