King County companies starting with O

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

O D BUILD CO LLCAuburn · General Contractor
O G REMODELINGAuburn · General Contractor
O I FLOORING/MILLWORK LLCKent · General Contractor
O M A CONSTRUCTION INCMaple Valley · General ContractorProject Management · Bridge Construction · Concrete Flatwork
O T TILE LLCAuburn · Tile & Stone Contractor
O'BRIEN PLUMBINGSeattle · Plumbing Contractor
O'CONNELL LEGACY BUILDERSRenton · General Contractor
O'Grady Plumbing LLCBellevue · Plumbing Contractor
O'NEILL PLUMBING COSeattle · Plumbing ContractorWater Heater Repair and Installation · Burst Pipe Repair · Faucet Repair and Installation
O'SHAUGHNESSY BUILDERS LLCSeattle · General Contractor
O&L LNDSCP & MAINT LLCKirkland · Landscaping Contractor
O&S SIDING LLCKent · Siding Contractor
O&T CONCRETE LLCAuburn · Concrete Contractor
O2PURE AIR DUCT CLEANING LLCWoodinville · General ContractorResidential Air Duct Cleaning · Commercial Air Duct Cleaning · Air Purification Systems
OAI+RAINIERTukwila · Painting ContractorRetail Displays · Grand Format Printing · Event Tents
OAK & MARBLE DESIGN LLCBellevue · General Contractor
OAK HEARTH HOMES LLCSnoqualmie · General Contractor
OASIS BATH SOLUTIONS LLCBellevue · General Contractor
OASIS BR LLCSeattle · General Contractor
OASIS CONSTRUCTION GROUP INCSeattle · General ContractorRoofing · Siding · Deck & Porch
OASIS DEVELOPMENT & CONST LLCBellevue · General Contractor
OASIS GARDENS & DESIGNWoodinville · Landscaping Contractor
OASIS LANDSCAPING & CONST LLCSeatac · Landscaping Contractor
OASIS PAINTING LLCKent · Painting Contractor
OASIS QUALITY HOMES LLCKirkland · General Contractor
OB FINISH CARPENTRY LLCKent · General Contractor
OBA CONSTRUCTIONFederal Way · General Contractor
OBAN PAINTING LLCSeattle · Painting Contractor
OBED GALDAMEZ CONSTRUCTION LLCSeattle · General Contractor
OBJECTIVE SERVICESBellevue · General ContractorRoof Waterproofing · Roof Repair · Roof Safety Systems
OBOT ELECTRIC LLCBellevue · Electrical Contractor
OBY RENOVATION LLCFederal Way · General Contractor
OC EXPERT HTG & COOLING LLCFederal Way · General Contractor
OC REMODELING & PAINTING LLCKirkland · General Contractor
OCEAN COLORS LLCDes Moines · General Contractor
OCEAN MILL WORKSeattle · Carpentry Contractor
OCEAN PARK MECHANICAL INCSeattle · General Contractor · Plumbing Contractor · Electrical ContractorPipefitting Systems · Design Build · Maintenance
OCEAN PLUMBING LLCRenton · Plumbing Contractor
OCEAN STAR CONCRETERenton · Concrete Contractor
OCEANNA CONSTRUCTION LLCBellevue · General Contractor
OCH GROUPBellevue · Painting Contractor
OCHOA FLOORING & CARPET LLCAuburn · Flooring Contractor
OCHRE LLCSeattle · General Contractor
OCM LLCSeattle · General Contractor
OCTAGON CONSTRUCTAlgona · General Contractor
OCTARINE LNSP DSN&SOIL RST LLCCovington · Landscaping Contractor
OCTAVERENOVATIONS LLCRenton · General Contractor
Octo's Electric LLCRedmond · Electrical Contractor
OD PRO PAINTINGSeattle · Painting Contractor
ODDJOB CONSTRUCTIONSeattle · General Contractor
ODEMCHUK CONSTRUCTION LLCKent · Tile & Stone Contractor
ODESSA ENTERPRISES LLCIssaquah · Flooring Contractor
ODESSAPROGRESS LLCKent · General Contractor
ODIN WOOD CONSTRACTIONRedmond · General Contractor
ODYSSEY PLUMBINGSeattle · General Contractor · Plumbing ContractorResidential · Commercial
OEA PAINTING LLCSeattle · Painting Contractor
OEM WELDING LLCKent · General Contractor
OFF THE PORCHSeattle · General Contractor
OFFER THE DEALFederal Way · General Contractor
OFFICE POD - DYNOMIND CNSTRedmond · General Contractor
OG7North Bend · Carpentry Contractor
OHANA BY DESIGN LLCBellevue · General Contractor
OHANA CONSTRUCTIONBurien · General Contractor
OHM ELECTRICAL CONTRACTING LLCSeattle · Electrical ContractorEV Charging Stations · Heat Pumps · Solar Power and Battery Systems
OHNO CONSTRUCTION COMPANYSeattle · General ContractorAthletic Field Construction · Park Construction · Synthetic Turf
OHNO-TOUCHDOWN JVSeattle · General ContractorTurnkey services · Athletic field construction · Park construction
OHS CONSTRUCTION GROUPBellevue · General Contractor
OIKOS PAINTING & DESIGN LLCFederal Way · Painting Contractor
Okay Construction LLCRedmond · General Contractor
OKC BUILDERS LLCAuburn · General Contractor
OKLA CONTRACTORS LLCEnumclaw · General Contractor
Olander Garden Design LLCShoreline · General Contractor
OLC CONSTRUCTION LLCMaple Valley · General Contractor
OLD GROWTH BUILDERS LLCBurien · General Contractor
OLD HOUSE DRSeattle · General Contractor
OLD SCHOOL BUILDERSSeattle · General Contractor
OLD WORLD CARPET SERVICERedmond · Flooring Contractor
OLD WORLD CONST & CSTM HMS INCRavensdale · General Contractor
OLDCASTLE INFRASTRUCTURE INCAuburn · General ContractorStorm water management and drainage · Wastewater and environmental · Irrigation
OLEA PAINTING LLCTukwila · Painting Contractor
OLEG'S CONSTRUCTIONKent · General Contractor
OLEG'S CONSTRUCTION LLCKent · General Contractor
OLEG'S INTERIORS LLCBlack Diamond · Tile & Stone Contractor
OLEG'S TILE DESIGN INCAuburn · Tile & Stone Contractor
OLEH MOROZRenton · General Contractor
OLEK TILE LLCCovington · Tile & Stone Contractor
OLEKSANDR FILINSKYY LLCCovington · Flooring Contractor
OLEKSANDR KOVALENKOBellevue · General Contractor
OLEKSANDR USACHFederal Way · Carpentry Contractor
OLEKSIYS HARDWOOD FLOORING LLCRenton · Flooring Contractor
OLGA PAINTSAuburn · Painting Contractor
Oliva and CompanyAuburn · Carpentry Contractor
OLIVA'S PAINTING LLCFederal Way · General Contractor
OLIVE & IRON STUDIOS LLCSeattle · General Contractor
OLIVE BRANCH REPAIRS LLCRedmond · General Contractor
OLIVE CUSTOM WOODWORKS LLCSeattle · Carpentry Contractor
OLIVE ROOFING INCBlack Diamond · Roofing Contractor
OLIVER & BLUE CONSTRUCTION LLCSeattle · General Contractor
OLM INDUSTRIES INCEnumclaw · General Contractor
OLMSTEAD HOME MAINTENANCEEnumclaw · General Contractor
OLSA CONSTRUCTION LLCKent · Siding Contractor
OLSEN ANDERSON CONST LLCSeattle · General Contractor
OLSEN ELECTRIC INCKent · Electrical ContractorElectrical construction services · Low voltage technology · Fire, video, surveillance and security
OLSIS LLCFederal Way · Flooring Contractor
OLSON BROTHERS PRO-VAC LLCKent · Specialty Contractor
Olson Energy Serv/Gas Appl SvcSeattle · Electrical Contractor · HVAC/R ContractorHeat pumps · Heating and cooling · Service and repair
OLSON EXCAVATING LLCEnumclaw · General Contractor
OLSON HOLDINGS &CONSULTING INCSeattle · General Contractor
OLYMPIC DECKS LLCSeattle · General ContractorNew decks · Deck resurfacing · Louvered roofs
OLYMPIC ELEVATOR COMPANYBellevue · Elevator Contractor · Specialty ContractorElevator maintenance and repair · Elevator modernization · Elevator testing
OLYMPIC FINE FNSH & RESTOR LLCSeattle · Painting Contractor
OLYMPIC HEATING AND A/C LLCRenton · HVAC/R Contractor
OLYMPIC HOT TUB COSeattle · Electrical ContractorHot tubs · Swim spas · Saunas
OLYMPIC INTERIORS INCFederal Way · General ContractorDrywall construction · Commercial projects · Industrial projects
OLYMPIC MILLWORK LLCSeattle · General Contractor
OLYMPIC PAINT & RENOVATION LLCRavensdale · General Contractor
OLYMPIC RANGE LANDSCAPE LLCFederal Way · General Contractor
OLYMPIC RCKRY & LANDSC SUP LLCIssaquah · General ContractorRock walls, boulders, and rockery · Retaining walls · Stairs and pathways
OLYMPIC ROOFING LLCFederal Way · General ContractorRoof repair and replacement · Flat roofing · Commercial roofing
OLYMPUS HEATING COOLING & REFRKent · HVAC/R Contractor
OM CONSTRUCTION & SERVICES LLCMaple Valley · General Contractor
OMAR CONSTRUCTION SERVICES LLCSeattle · General Contractor
OMAR LANDSCAPING LLCRenton · General Contractor
OMAR'S DEMOLITION & CONST LLCSeattle · General ContractorRoofing · Siding · Fencing
OMAR'S FLOORING LLCRenton · Flooring Contractor
OMARS HAULING&JUNK REMOVAL LLCKirkland · General Contractor
OMC MAINTENANCE CO LLCAuburn · General Contractor
OMD FLOORING LLCAuburn · Flooring Contractor
OMEGA BUILDERS LLCEnumclaw · General Contractor
OMEGA ELECTRICKent · Electrical Contractor
OMEGA GENERAL CONT LLCSeattle · General Contractor
OMEGA GENERAL INCRedmond · General Contractor
OMEGA LIMITED CONSTRUCTION LLCSeattle · General Contractor
OMEGA LLCKent · Tile & Stone Contractor
OMEGA SERVICES AND SUPPLY INCRedmond · Electrical Contractor · General Contractor
OMELKO LLCKent · Tile & Stone Contractor
OMNI HOME & PEST SERVICES LLCBothell · General ContractorPest control · Prevention plans
OMNI PROPERTIES INCFederal Way · General ContractorProperty management · Residential and commercial real estate s · Properties for sale
OMNIA HOMESPacific · General Contractor
OMNICOAT SOLUTIONS LLCRenton · Painting Contractor
ON DEMAND RESTORATION LLCBellevue · General Contractor
ON PAR SERVICES LLCCarnation · General Contractor
On Point Flooring Inst LLCPacific · Flooring Contractor
ON POINT REPAIRS LLCKenmore · General Contractor
ON SIGHT ACCESS LLCSeattle · General Contractor
ON SITE SECURITY SERVICES LLCRenton · Electrical Contractor · General Contractor
ON SITE SOLUTIONS LLCKirkland · General Contractor
ON THE MARK LANDSCAPING LLCShoreline · Landscaping Contractor
ON THE MARK MAINTENANCE LLCKent · General Contractor
ON TOP EARTH WORKS LLCKent · General Contractor
ONBLISS CONSTRUCTIO LLCCovington · Tile & Stone Contractor
ONDOL MARURenton · General Contractor
ONE BEAR REMODELING LLCKent · General Contractor
ONE CONSTRUCTIONBothell · General Contractor
ONE DESIGN BUILD LLCSeattle · General Contractor
ONE FOUNDATION CONCRETE LLCSeattle · General Contractor
ONE HARDSCAPING & CONST LLCSeattle · General Contractor
ONE HOUR HEATING & AIR CNDTNGRedmond · General Contractor
ONE HOUR HEATING & AIR CONDTukwila · General Contractor
ONE HOUR HTG & A/C OF CTRL SEAIssaquah · HVAC/R Contractor
ONE HOUR HTG & A/C OF CTRL SEASeattle · Electrical Contractor
ONE PLUS SOLUTIONS LLCShoreline · General Contractor
ONE SOURCE SOLUTIONSCarnation · General Contractor
ONE STEP ENVIR ABATEMENT LLCSeattle · General Contractor
ONE STEP FURTHER INCSeattle · Flooring Contractor
ONE STOP BUILDING AND RENO LLCSeattle · General Contractor
ONE STOP SERVICES LLCSeattle · General ContractorOil and grease stain removal · Pressure washing · Asphalt patching, sealing, and striping
ONE WAY PLUMBING LLCKirkland · Plumbing Contractor · General Contractor
ONE WORKPLACESeattle · General ContractorFurniture · Construction · Technology
ONE6IXTEEN PAINTING LLCSeattle · Painting Contractor
ONEENERGY CONSTRUCTION LLCSeattle · General ContractorCommunity solar · Utility solar · Solar and storage
ONESTA LLCTukwila · General Contractor
ONIKA CONSTRUCTION LLCAuburn · Tile & Stone Contractor
ONNI BOREN AVE SEATTLE LLCSeattle · General Contractor
ONO-SENDAISeattle · Landscaping Contractor
ONPOINT REMODEL LLCAuburn · General Contractor
ONSITE HOA SERVICESKirkland · General Contractor
ONWARD & UPWARD LLCFederal Way · Specialty Contractor
OOM LIVING LLCBurien · General Contractor
OPALSHINE RESURFACING SVCS LLCKirkland · General Contractor
OPEN UP LOCKSMITH LLCRenton · General Contractor
OPENYX CUSTOM INSTLLTNS LLCRenton · General Contractor
OPM Landscaping LLCSeattle · General ContractorLawn and yard care · Landscape maintenance · Soil and turf analysis
OPS, OPERABLE PRTN SERV LLCWoodinville · Specialty Contractor
OPTICLINE CORPBothell · General Contractor
OPTIMA CONSTRUCTIONKirkland · General Contractor
OPTIMA ENTERPRISES LLCFederal Way · General Contractor
OPTIMA FENCE AND DECKMercer Island · General ContractorFence installation · Fence repair · Wood fencing
OPTIMAL BUILDS LLCIssaquah · General Contractor
OPTIMAL ROOFING LLCBothell · Roofing Contractor
OPTIMUM ELECTRIC LLCKirkland · Electrical Contractor
OPTIMUM ENERGY CO WA LLCSeattle · General Contractor
OPTIMUM HANDYMAN LLCSeattle · General Contractor
OR LLCAuburn · General Contractor
ORBIT ELECTRIC AND SOLAR LLCFederal Way · Electrical Contractor
ORBIT RFNG AND RENOVATIONS LLCSeattle · General ContractorHas a website
ORCA FURNITURE SERVICES LLCAlgona · Specialty Contractor
ORCA N W CONSTRUCTION LLCAuburn · General ContractorConcrete driveways · Stamped concrete · Pavers
ORCA PACIFIC INCAuburn · General ContractorPool chemicals · Pool and spa heaters · Pool cleaning equipment
ORCA PAINTING & CONST SVCS LLCKirkland · General Contractor

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