Los Angeles County companies starting with O

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

OMEGA ELECTRIC SERVICELa Puente · Electrical Contractor (C-10)
OMEGA FIRE PROTECTION SERVICES INCWoodland Hills · Fire Protection Contractor (C-16)
OMEGA GLASS & MIRRORSLos Angeles · Glazing Contractor (C-17)
OMEGA HOME IMPROVEMENT INCSherman Oaks · General Building Contractor (B)
OMEGA LANDSCAPE DESIGNSan Fernando · Landscaping Contractor (C-27) · Specialty Contractor
OMEGA LANDSCAPING INCLos Angeles · Landscaping Contractor (C-27) · Specialty Contractor
OMEGA MILLWORK AND DOOR COMPANYLawndale · Cabinet, Millwork & Finish Carpentry (C-6)
OMEGA PAINTING AND REMODELINGEncino · General Building Contractor (B) · Landscaping Contractor (C-27) · Painting Contractor (C-33)
OMEGA PLUMBINGBurbank · Plumbing Contractor (C-36)
OMEGA PLUMBING & ROOTERLos Angeles · Plumbing Contractor (C-36)
OMEGA POOL REMODELING INCSylmar · Lathing & Plastering Contractor (C-35)
OMEGA PROTECTION SYSTEMSGranada Hills · Electrical Contractor (C-10)
OMEGA STRUCTURAL INCLos Angeles · General Building Contractor (B)Hillside Remediation · New Construction · Foundation Repair
OMEGA TECHNICAL SERVICES INCClaremont · General Engineering Contractor (A) · Specialty Contractor
OMEGATECH ELECTRICSylmar · Electrical Contractor (C-10)
OMER BARELMarina Del Rey · General Building Contractor (B)
OMER CONSTRUCTIONEncino · General Building Contractor (B)
OMG BUILDERS INCDowney · General Building Contractor (B)
OMG ELECTRIC PROS INCHuntington Park · Electrical Contractor (C-10)
OMID KALIF PLUMBINGBurbank · Plumbing Contractor (C-36)
OMNI BUILDING SERVICESLos Angeles · General Building Contractor (B)
OMNI COMPANY THEWhittier · General Building Contractor (B)
OMNI GENERAL CONSTRUCTIONHacienda Heights · General Building Contractor (B)
OMNI MEDICAL CONSTRUCTION INCVan Nuys · General Building Contractor (B)
OMNI ROOFING AND CONSTRUCTIONNorth Hollywood · General Building Contractor (B) · Roofing Contractor (C-39)
OMNI-TEMP REFRIGERATIONVernon · HVAC Contractor (C-20)Remote Refrigeration · Evaporators · Sushi Cases
OMNIA ENGINEERING CO LLCWest Hills · General Engineering Contractor (A) · General Building Contractor (B)
OMNIA PACIFIC CONSTRUCTION LLCTorrance · General Building Contractor (B)
OMNIBUILD SOLUTIONS INCNorwalk · General Building Contractor (B)
OMNICRAFT ENTERPRISES INCSignal Hill · General Building Contractor (B) · Flooring Contractor (C-15) · Tile Contractor (C-54)
OMNIGRADE TRADEWORKS INCChatsworth · HVAC Contractor (C-20)
OMNITEAM INCVernon · Sheet Metal Contractor (C-43)Remote Refrigeration · Evaporators · Sushi Cases
OMTECH INCSherman Oaks · Low Voltage Systems Contractor (C-7)
OMUNIQUE DESIGNS & CONSTRUCTION LLCActon · General Building Contractor (B)
OMYO CONSTRUCTIONBurbank · General Building Contractor (B)Kitchens · Bathrooms · Interiors
ON - LINE CONSTRUCTIONEl Monte · General Building Contractor (B) · Painting Contractor (C-33)
ON - SITE BUILDERS INCSan Fernando · General Building Contractor (B) · Electrical Contractor (C-10) · Plumbing Contractor (C-36)Commercial/Retail Construction · Restaurants · Fueling Stations
ON - SITE WELDING & CONSTRUCTIONWest Covina · Specialty Contractor · General Building Contractor (B)
ON - TRACK GENERAL CONTRACTOR & MANAGEMENTTorrance · General Building Contractor (B)
ON CALL HEATING AND COOLINGGlendale · HVAC Contractor (C-20)
ON CALL PLUMBINGLancaster · Plumbing Contractor (C-36)Residential Plumbing · Commercial Plumbing · Sewer Services
ON CALL RESTORATIONS INCShadow Hills · General Building Contractor (B)
ON DEMAND BUILDERS INCPalmdale · General Building Contractor (B)
ON DEMAND ELECTRICALCanoga Park · Electrical Contractor (C-10)
ON DEMAND RESTORATION INCLa Canada Flintridge · General Building Contractor (B)
ON DEMAND ROOTERLos Angeles · Plumbing Contractor (C-36)
ON GOLDEN POND INCSanta Monica · Landscaping Contractor (C-27) · Swimming Pool Contractor (C-53)Pond Construction · Pond Remodel · Pond Maintenance
ON IT CONTRUCTION SERVICELos Angeles · General Building Contractor (B) · Specialty Contractor
ON ONE CONSTRUCTION LLCLos Angeles · General Building Contractor (B)
ON PAINTING INCLos Angeles · Painting Contractor (C-33)
ON POINT BUILDERS INCLong Beach · General Building Contractor (B)
ON POINT BUILDING COMPANY LLCLong Beach · General Building Contractor (B)
ON POINT COMMERCIAL SOLAR INCValencia · General Building Contractor (B) · Electrical Contractor (C-10) · Solar Contractor (C-46)
ON POINT DEVELOPEMENT SERVICESMalibu · General Building Contractor (B)
ON POINT HOME SOLUTIONS LLCMalibu · General Building Contractor (B)
ON POINT PLUMBING SYSTEMS INCSaugus · Plumbing Contractor (C-36)
ON RAILS GARAGE DOORS INCLong Beach · Specialty Contractor
ON TARGET GENERAL CONSTRUCTIONPanorama City · General Building Contractor (B)
ON THE LEVEL LLCLa Verne · General Building Contractor (B)
ON THE LEVEL TILE & STONECovina · Tile Contractor (C-54)
ON THE LINE CONSTRUCTIONSouth Pasadena · General Building Contractor (B)
ON TIME BUILDERS & RESTORATION INCWest Hills · General Building Contractor (B)
ON TIME GARAGE DOOR REPAIR INCVan Nuys · Specialty Contractor
ON TIME PAINTINGRowland Heights · Painting Contractor (C-33)
ON TIME PAINTING INCHawthorne · Painting Contractor (C-33)
ON TIME PLUMBING SERVICES INCPanorama City · Plumbing Contractor (C-36)
ON TIME TECH PROSTujunga · Low Voltage Systems Contractor (C-7)
ON TOP GENERAL BUILDERS COBaldwin Park · General Building Contractor (B)
ON-SITE PLUMBING COLos Angeles · Plumbing Contractor (C-36)
ON-SITE REFINISHING & CUSTOME CABINETSSouth Gate · Cabinet, Millwork & Finish Carpentry (C-6)
ON-TIME ROYAL PLUMBINGLos Angeles · Plumbing Contractor (C-36)
ONBOARD IT TECH INCSherman Oaks · Low Voltage Systems Contractor (C-7)
ONDAINE ENTERPRISESChatsworth · General Building Contractor (B) · Electrical Contractor (C-10) · HVAC Contractor (C-20) · Plumbing Contractor (C-36)
ONE & DONE CONSTRUCTIONHuntington Park · General Building Contractor (B)
ONE & DONE ELECTRIC INCBeverly Hills · Electrical Contractor (C-10)Panel & Service Upgrades · Home Rewiring · EV Charger Installation
ONE & DONE PLUMBING INCAzusa · Plumbing Contractor (C-36)
ONE & ONLY GARAGE DOOR & GATE INCTarzana · Specialty Contractor
ONE AND ALL ELECTRICAL SERVICESCovina · Electrical Contractor (C-10)
ONE CALL CONSTRUCTION INCWhittier · General Building Contractor (B)
ONE CALL PLUMBING INCWhittier · Plumbing Contractor (C-36)
ONE CREATIVE GROUP INCLos Angeles · General Building Contractor (B)
ONE DAY BUILDERS INCLos Angeles · General Building Contractor (B)
ONE DAY ORGANIZING SOLUTIONSSan Pedro · Cabinet, Millwork & Finish Carpentry (C-6)
ONE DAY RAIN GUTTERSChatsworth · Specialty Contractor
ONE ELECTRICSan Pedro · Electrical Contractor (C-10)
ONE ELECTRICSouth Gate · Electrical Contractor (C-10)
ONE ELECTRIC LLCSylmar · Electrical Contractor (C-10)Switchgear, Transformers & Panels · Fire Alarm · Structured Cabling
ONE FAITH CONSTRUCTION COCarson · General Building Contractor (B)
ONE GENERATION HOME IMPROVEMENTS INCCanyon Country · General Building Contractor (B) · Electrical Contractor (C-10) · Plumbing Contractor (C-36)
ONE GOOD ELECTRICIANNorth Hollywood · Electrical Contractor (C-10)
ONE HEART GENERAL CONSTRUCTIONWhittier · General Building Contractor (B)
ONE MAN & COMPANY INCWhittier · Cabinet, Millwork & Finish Carpentry (C-6)
ONE O ONE ELECTRIC INCSunland · Electrical Contractor (C-10)
ONE OAK CONSTRUCTIONWinnetka · General Building Contractor (B)
ONE OF A KIND RESTORATION INCVan Nuys · General Building Contractor (B)Water Damage · Water Extraction · Fire Damage
ONE OF ONE CONSTRUCTIONWhittier · General Building Contractor (B)
ONE PRO RESTORATIONLos Angeles · General Building Contractor (B)
ONE ROOFING SOLUTION INCCommerce · Roofing Contractor (C-39)
ONE SHOT PROTECTION LLCNorth Hollywood · Low Voltage Systems Contractor (C-7)
ONE STOP BUILDING & RENOVATION INCLawndale · General Building Contractor (B)
ONE STOP CONSTRUCTION MANAGEMENTPasadena · General Building Contractor (B)
ONE STOP HEATING AND COOLING INCCerritos · HVAC Contractor (C-20)HVAC Repair · HVAC Maintenance · New System Installation
ONE STOP INSTALLATIONSTorrance · Cabinet, Millwork & Finish Carpentry (C-6)
ONE STOP PAINTING INCLawndale · General Building Contractor (B) · Painting Contractor (C-33)
ONE STOP PLUMBING & ROOTERWhittier · Plumbing Contractor (C-36)
ONE STOP REFRIGERATION INCLos Angeles · HVAC Contractor (C-20)
ONE STOP RETROFITTarzana · General Building Contractor (B)
ONE STOP SHOP INCAzusa · General Building Contractor (B) · Flooring Contractor (C-15) · Tile Contractor (C-54)Tile · Countertops · Cabinets
ONE STOP WINDOWS & DOORSTorrance · Cabinet, Millwork & Finish Carpentry (C-6)Windows · Doors · Hardware
ONE TEN ELECTRICGardena · Electrical Contractor (C-10)
ONE TIME ROOFINGLakewood · Roofing Contractor (C-39)
ONE TOUCH CONSTRUCTIONGlendale · General Building Contractor (B)
ONE TOUCH PAINTING INCArleta · Painting Contractor (C-33)
ONE TOUCH PLUMBINGVan Nuys · Plumbing Contractor (C-36)
ONE TRUEMARK CONSTRUCTION INCEncino · General Building Contractor (B)
ONE WAY ELECTRIXCanyon Country · Electrical Contractor (C-10)
ONE WAY HEATING & AIR CONDITIONINGTorrance · HVAC Contractor (C-20)AC Repair, Installation & Maintenance · Heating Repair, Installation & Maintenan · Duct Cleaning
ONE WAY PAINT & DESIGNEl Segundo · Painting Contractor (C-33)
ONE WAY ROOTER & PLUMBINGSanta Fe Springs · Plumbing Contractor (C-36)
ONE WAY ROOTER SERVICES INCLos Angeles · Plumbing Contractor (C-36)Rooter Service · Hydro-Jetting · Trenchless Technology
ONE WEEK BATH INCVan Nuys · General Building Contractor (B)Bathroom Remodeling · Kitchen Remodeling · Aging in Place Bathroom
ONE-STOP HEATING & COOLING INCCanyon Country · HVAC Contractor (C-20)
ONE-WAY ELECTRIC COMPANYNorthridge · Electrical Contractor (C-10)
ONE2'S H V A CNorthridge · HVAC Contractor (C-20)
ONE10 SOLUTIONS INCLos Angeles · General Building Contractor (B)
ONE54 ELECTRICLos Angeles · Electrical Contractor (C-10)
ONEBIR GENERAL CONSTRUCTIONVan Nuys · General Building Contractor (B)Bathroom Remodeling · Kitchen Remodeling · ADU Construction
ONEBUTTONLos Angeles · Low Voltage Systems Contractor (C-7)
ONEDERFUL CONSTRUCTION INCWest Hills · General Building Contractor (B)
ONEGMA DEVELOPMENT LLCWest Hills · General Building Contractor (B)
ONEILL SECURITY INCEncino · General Building Contractor (B) · Specialty Contractor
ONENEXT CONSTRUCTION SOLUTIONS LLCEl Monte · General Building Contractor (B)
ONEPLUSONE SERVICESEl Monte · General Building Contractor (B) · Plumbing Contractor (C-36)
ONESTOP ADU CENTERVan Nuys · General Building Contractor (B)
ONESUN LLCStudio City · Solar Contractor (C-46)
ONEW HOME CONSTRUCTION INCPomona · General Building Contractor (B)
ONGOING ROOFING INCNewhall · Roofing Contractor (C-39)
ONIK ELECTRICAL SERVICES INCGlendale · Electrical Contractor (C-10)
ONLY ONE CONSTRUCTIONWest Hills · General Building Contractor (B)
ONLY THE BEST HEATING AND AIR CONDITIONINGArcadia · HVAC Contractor (C-20)
ONMARK BUILDERSValley Village · General Building Contractor (B)
ONNI CONTRACTING (CALIFORNIA) INCLos Angeles · General Building Contractor (B)
ONNURI BUILDERS INCRowland Heights · General Building Contractor (B) · Plumbing Contractor (C-36)
ONNURI PLUMBING CONSTRUCTIONRowland Heights · Plumbing Contractor (C-36)
ONP CONSTRUCTION INCSan Marino · General Building Contractor (B)
ONQ ENERGY SERVICESSanta Clarita · General Engineering Contractor (A) · General Building Contractor (B) · Electrical Contractor (C-10)Preventative Maintenance · Plant Support · Inverter and Tracker Troubleshooting / R
ONSIDE CONSTRUCTION INCRosemead · General Building Contractor (B) · Cabinet, Millwork & Finish Carpentry (C-6)
ONSITE CONSTRUCTION SERVICES INCSanta Clarita · General Building Contractor (B) · Electrical Contractor (C-10)
ONSITE OVERHEAD DOORSCommerce · Specialty Contractor
ONSITE RESTORATION LLCGranada Hills · Flooring Contractor (C-15)
ONSITEMIKE AND THE BUILDERS INCLong Beach · General Building Contractor (B)
ONSTAR BUILDERS INCValley Village · General Building Contractor (B)
ONSYNC SOLUTIONSMonrovia · General Building Contractor (B)
ONSYTE SERVICES INCNorwalk · General Building Contractor (B) · Painting Contractor (C-33)
ONTIME AIR SERVICE INCAlhambra · HVAC Contractor (C-20)
ONTIME DOCK SERVICELa Mirada · Specialty Contractor
ONTRAK CONSTRUCTIONWhittier · General Building Contractor (B)
ONTRAX CONSTRUCTION INCLancaster · General Engineering Contractor (A) · General Building Contractor (B) · Demolition Contractor (C-21) · Landscaping Contractor (C-27)
ONWARD CAPITAL LLCWest Hollywood · General Building Contractor (B)
ONYX BUILDERPasadena · General Building Contractor (B)
ONYX BUILDING COMPANYChatsworth · General Building Contractor (B)
ONYX BUILDING SOLUTIONS INCStudio City · General Building Contractor (B)
ONYX CONSTRUCTIONManhattan Beach · General Building Contractor (B)
ONYX CUSTOM LANDSCAPEVan Nuys · Landscaping Contractor (C-27)
ONYX DESIGN & REMODELING INCWest Hills · General Building Contractor (B)
ONYX GARAGE DOORS INCGranada Hills · Specialty Contractor
ONYX GENERAL BUILDING INCGranada Hills · General Building Contractor (B)
ONYX GENERAL CONSTRUCTION COLos Angeles · General Building Contractor (B)ADU Construction · Home Additions · Major Remodeling
ONYX PLASTERINGBell Gardens · Lathing & Plastering Contractor (C-35)
OP ELECTRICAL INCInglewood · Electrical Contractor (C-10)
OPAL CONSTRUCTION COMPANYHawthorne · General Building Contractor (B)
OPALEE FIRE PROTECTION INCTarzana · Fire Protection Contractor (C-16)
OPEN BOOK HARDWOOD FLOORSReseda · Flooring Contractor (C-15)
OPEN FLOW PLUMBINGArleta · Plumbing Contractor (C-36)
OPEN SESAME GARAGE DOORSWoodland Hills · General Building Contractor (B) · Specialty Contractor
OPEN WINDOWS AND GLASS DOORSPanorama City · Glazing Contractor (C-17)
OPENLEVEL CONSTRUCTIONEl Monte · General Building Contractor (B)
OPERA CONSTRUCTIONSMarina Del Rey · General Building Contractor (B)
OPES LLCLa Mirada · General Building Contractor (B)
OPIO CONSTRUCTION INCWoodland Hills · General Building Contractor (B)
OPOS HENRYLos Angeles · Fire Protection Contractor (C-16)
OPPOSITE WEATHER HEATING & AIR CONDITIOINGNorwalk · HVAC Contractor (C-20)
OPTEK COMMUNICATIONSRedondo Beach · Low Voltage Systems Contractor (C-7)
OPTERRA ENERGY SERVICES LLCPasadena · General Engineering Contractor (A) · General Building Contractor (B) · Electrical Contractor (C-10) · Solar Contractor (C-46)Resiliency · Operational Efficiency · Facilities & Infrastructure Modernizatio
OPTIC TEL INCBurbank · Low Voltage Systems Contractor (C-7) · Specialty Contractor
OPTIMA DESIGN AND BUILD INCLos Angeles · General Building Contractor (B)Design & Build · ADU Construction · Home Additions
OPTIMA DOOR & FRAME INCLos Angeles · Specialty Contractor
OPTIMA ELECTRICRowland Heights · Electrical Contractor (C-10)
OPTIMA ENERGY INCArtesia · Electrical Contractor (C-10)Has a website
OPTIMA GROUP INCDuarte · General Building Contractor (B)
OPTIMA PLUS CONSTRUCTION INCLos Angeles · General Building Contractor (B)
OPTIMAL BUILD & ELECTRIC INCWhittier · General Building Contractor (B) · Electrical Contractor (C-10)
OPTIMAL CONSTRUCTIONLa Puente · General Building Contractor (B)
OPTIMIZE GARAGE DOORRancho Palos Verdes · Specialty ContractorGarage Door Installation · Garage Door Repair · Glass Garage Doors
OPTIMO PLUMBING AND BACKFLOW INCLos Angeles · Plumbing Contractor (C-36)
OPTIMUM DRYWALLLancaster · Drywall Contractor (C-9)
OPTIMUM ELECTRICAL SOLUTIONSDowney · Electrical Contractor (C-10)
OPTIMUM EPOXY COATINGSMontebello · Specialty Contractor
OPTIMUM HEATING AND AIR CONDITIONINGGlendora · HVAC Contractor (C-20)
OPTIMUM PAINTING COMPANYLos Angeles · Painting Contractor (C-33)

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