Listed
Name, city and trade from public record. Services shown on some listings come from the business's own website.
- GOLD WING ENGINEERINGHayward · General Engineering Contractor (A)Concrete · Trenching For Utilities · Sewer Lateral Replacement
- GOLDEN BAY CONSTRUCTION INCHayward · General Engineering Contractor (A) · General Building Contractor (B) · Concrete Contractor (C-8) · Electrical Contractor (C-10) · Earthwork & Paving Contractor (C-12) · Specialty ContractorStructural site work · Architectural site work · Commercial ADA retrofits
- GOLDEN BRICK BUILDERS INCNewark · General Engineering Contractor (A) · General Building Contractor (B) · Fire Protection Contractor (C-16)
- GOLDEN BRICK CONSTRUCTION INCFremont · General Engineering Contractor (A) · General Building Contractor (B) · Fire Protection Contractor (C-16)
- GOLDEN GATE CONSTRUCTORSDublin · General Engineering Contractor (A) · General Building Contractor (B) · Earthwork & Paving Contractor (C-12)
- GOLDEN STATE LANDSCAPINGLivermore · General Engineering Contractor (A) · General Building Contractor (B) · Concrete Contractor (C-8) · Landscaping Contractor (C-27)
- GRADETECH INCLivermore · General Engineering Contractor (A) · Demolition Contractor (C-21) · Specialty Contractor
- GRAND INDUSTRIES INCOakland · General Engineering Contractor (A) · General Building Contractor (B)
- GREEN GROWTH INDUSTRIES INCPleasanton · General Engineering Contractor (A) · Landscaping Contractor (C-27) · Specialty ContractorHas a website
- GREEN VALLEY GROUPLivermore · General Engineering Contractor (A) · Landscaping Contractor (C-27)Landscape construction · Landscaping
- GREGORY MICHAEL BRAZILAlbany · General Engineering Contractor (A) · General Building Contractor (B) · Low Voltage Systems Contractor (C-7) · Electrical Contractor (C-10)
- GRIFFIN JAMES R INCFremont · General Engineering Contractor (A) · General Building Contractor (B) · Demolition Contractor (C-21)General Construction · Industrial · Laboratories
- GSL CONSTRUCTIONLivermore · General Engineering Contractor (A) · General Building Contractor (B) · Concrete Contractor (C-8) · Landscaping Contractor (C-27)
- GW ENGINEERING CONTRACTORS INCOakland · General Engineering Contractor (A)
- H L C CONSTRUCTIONOakland · General Engineering Contractor (A) · General Building Contractor (B) · Electrical Contractor (C-10) · Landscaping Contractor (C-27)
- HATTON'S CRANE & RIGGING INCHayward · General Engineering Contractor (A)All Terrain Cranes · Boom Trucks · Crawler Cranes
- HEAT TRANSFER SYSTEMS CORPORATIONLivermore · General Engineering Contractor (A)
- HENNINGER ENGINEERINGLivermore · General Engineering Contractor (A)
- HIGH TECH CONSTRUCTIONOakland · General Engineering Contractor (A) · General Building Contractor (B) · Electrical Contractor (C-10)
- HMH JOINT VENTUREOakland · General Engineering Contractor (A) · General Building Contractor (B) · Demolition Contractor (C-21) · Landscaping Contractor (C-27) · Specialty Contractor
- HOLLINGSHAUS ENTERPRISESLivermore · General Engineering Contractor (A) · General Building Contractor (B)
- HOME EXTENDOakland · General Engineering Contractor (A) · General Building Contractor (B)
- HOME-PRO CONSTRUCTION COBerkeley · General Engineering Contractor (A) · General Building Contractor (B) · Flooring Contractor (C-15) · Plumbing Contractor (C-36)
- HORIZON INDUSTRIESPleasanton · General Engineering Contractor (A) · General Building Contractor (B)Has a website
- HUTCHCRAFT INCAlameda · General Engineering Contractor (A) · General Building Contractor (B)
- HUTSON HAROLD CONSTRUCTIONNewark · General Engineering Contractor (A)
- IMPLICIT CONSTRUCTIONHayward · General Engineering Contractor (A) · General Building Contractor (B) · Specialty Contractor
- IMX INCOakland · General Engineering Contractor (A) · Specialty Contractor · General Building Contractor (B) · Demolition Contractor (C-21)
- INTERNATIONAL SWIM CENTER-2026 LLCPleasanton · General Engineering Contractor (A) · General Building Contractor (B) · Swimming Pool Contractor (C-53)
- J & M INCLivermore · General Engineering Contractor (A)Underground Sewer Installation · Storm Drain Installation · Water System Installation
- J A B CONSTRUCTIONHayward · General Engineering Contractor (A) · General Building Contractor (B)
- J D GENERAL CONSTRUCTION INCLivermore · General Engineering Contractor (A) · General Building Contractor (B) · Cabinet, Millwork & Finish Carpentry (C-6) · Electrical Contractor (C-10) · Flooring Contractor (C-15) · Fire Protection Contractor (C-16) · HVAC Contractor (C-20) · Painting Contractor (C-33) · Plumbing Contractor (C-36) · Sheet Metal Contractor (C-43)
- J M V CONSTRUCTION INCOakland · General Engineering Contractor (A) · General Building Contractor (B)
- JAY CONSTRUCTIONBerkeley · General Engineering Contractor (A) · General Building Contractor (B) · Fire Protection Contractor (C-16)
- JEPPSON CONSTRUCTIONLivermore · General Engineering Contractor (A)
- JJ CONSTRUCTION & DESIGN INCSan Leandro · General Engineering Contractor (A) · General Building Contractor (B)
- JJ DESIGN BUILDSan Leandro · General Engineering Contractor (A) · General Building Contractor (B)
- JLB CONSTRUCTORS INCHayward · General Engineering Contractor (A) · General Building Contractor (B)
- JOBCO PAVING INCNewark · General Engineering Contractor (A) · General Building Contractor (B) · Concrete Contractor (C-8) · Landscaping Contractor (C-27) · Masonry Contractor (C-29)
- JS COMPANYEmeryville · General Engineering Contractor (A) · Specialty Contractor · Demolition Contractor (C-21)
- K D W CONSTRUCTION LLCLivermore · General Engineering Contractor (A)Heavy civil earthwork
- K K BUILDERSHayward · General Engineering Contractor (A) · General Building Contractor (B)
- KANAYA CONSULTING & CONTRACTINGPleasanton · General Engineering Contractor (A)
- KC PAVING INCNewark · General Engineering Contractor (A)Interlocking pavers & stone · Asphalt · Concrete
- KINETICS MECHANICAL SERVICE INCLivermore · General Building Contractor (B) · HVAC Contractor (C-20) · Plumbing Contractor (C-36) · General Engineering Contractor (A)
- KING CRANE SERVICESan Leandro · General Engineering Contractor (A)Operated crane rental · Bare crane rental · Trucking and heavy haul
- KONNECTPRO DESIGNERS & BUILDERS INCFremont · General Engineering Contractor (A)
- L & T CONSTRUCTIONUnion City · General Engineering Contractor (A) · General Building Contractor (B) · Electrical Contractor (C-10) · Landscaping Contractor (C-27)
- LALOOS CONSTRUCTION INCOakland · General Engineering Contractor (A) · General Building Contractor (B) · Concrete Contractor (C-8) · Demolition Contractor (C-21) · Plumbing Contractor (C-36)
- LARRIETA BRO'S CONSTRUCTIONOakland · General Engineering Contractor (A)
- LEONG PENG KEmeryville · General Engineering Contractor (A) · General Building Contractor (B) · Specialty Contractor
- LEWIS ENGINEERINGPiedmont · General Engineering Contractor (A) · Specialty Contractor
- LIGHTY DOUGLAS ELivermore · General Engineering Contractor (A)
- LILJA CORPLivermore · General Engineering Contractor (A) · Electrical Contractor (C-10)Steel and Ironworking · Brick and Refractory · Piping
- LOZA & SONS INCSan Leandro · General Engineering Contractor (A) · General Building Contractor (B) · Landscaping Contractor (C-27)
- LUDWIG BETCHARTFremont · General Engineering Contractor (A)
- LUTZ WILLIAM EPleasanton · General Engineering Contractor (A)
- M & M FOUNDATION & DRILLING INCPleasanton · General Engineering Contractor (A)
- M C H ELECTRIC INCLivermore · General Engineering Contractor (A) · Electrical Contractor (C-10)Utility joint trench · Rule 20 installation · Underground wet utilities
- M D F PIPELINE GENERAL ENGINEERING CONTRACTORS INCDublin · General Engineering Contractor (A) · Fire Protection Contractor (C-16)
- M G REMEDIATION INCSan Leandro · General Engineering Contractor (A) · Specialty Contractor · General Building Contractor (B) · Demolition Contractor (C-21)
- M L S BUILDER INCOakland · General Engineering Contractor (A) · General Building Contractor (B) · Fire Protection Contractor (C-16) · Plumbing Contractor (C-36)Fire sprinkler · Plumbing · Sewer line and trenchless
- M L S PLUMBING AND BUILDER INCOakland · General Engineering Contractor (A) · General Building Contractor (B) · Fire Protection Contractor (C-16) · Plumbing Contractor (C-36)Fire sprinkler · Plumbing · Sewer line and trenchless
- M T C XCAVATING LLCHayward · General Engineering Contractor (A)
- M&G GRADING & EXCAVATIONLivermore · General Engineering Contractor (A)
- MAGDAVE ASSOCIATESOakland · General Engineering Contractor (A) · Specialty Contractor · General Building Contractor (B)
- MAR CON COOakland · General Engineering Contractor (A) · General Building Contractor (B) · Cabinet, Millwork & Finish Carpentry (C-6) · Drywall Contractor (C-9) · Flooring Contractor (C-15)
- MARCIEL EXCAVATINGLivermore · General Engineering Contractor (A)
- MARSHALL BROTHERS ENTERPRISES INCLivermore · General Engineering Contractor (A) · Landscaping Contractor (C-27)Rough and finish grading · Excavation and soil removal · Pipeline and area drainage
- MARTIN & MICHAEL CONSTRUCTION INCOakland · General Engineering Contractor (A) · General Building Contractor (B)
- MASCHERONI CONSTRUCTION INCBerkeley · General Engineering Contractor (A) · General Building Contractor (B)
- MAX CONSTRUCTIONDublin · General Engineering Contractor (A) · General Building Contractor (B) · Electrical Contractor (C-10) · Fire Protection Contractor (C-16)
- MC GUIRE AND HESTEROakland · General Engineering Contractor (A) · General Building Contractor (B) · Demolition Contractor (C-21) · Landscaping Contractor (C-27) · Specialty Contractor
- MC NELY CONSTRUCTION COMPANYSan Leandro · General Engineering Contractor (A) · General Building Contractor (B)
- MCGUIRE AND HESTER - POWER ENGINEERING CONSTRUCTION COMPANYOakland · General Engineering Contractor (A) · General Building Contractor (B) · Demolition Contractor (C-21) · Landscaping Contractor (C-27) · Specialty Contractor
- MCRAE K M INCHayward · General Engineering Contractor (A) · Fencing Contractor (C-13) · Specialty Contractor
- MEHARI GENERAL ENGINEERING CONTRACTOROakland · General Engineering Contractor (A)
- MID-COAST TRANSIT CONSTRUCTORSAlameda · General Engineering Contractor (A)
- MITCHELL T ENGINEERSOakland · General Engineering Contractor (A)
- ML CONSTRUCTIONCastro Valley · General Engineering Contractor (A) · General Building Contractor (B)
- MODERN RAILWAY SYSTEMSAlameda · General Engineering Contractor (A) · Electrical Contractor (C-10)
- MODERN RAILWAY SYSTEMS HERZOG TECHNOLOGIES INC A JOINT VENTUREAlameda · General Engineering Contractor (A) · Electrical Contractor (C-10)
- MODUTECTURE INCHayward · General Engineering Contractor (A) · General Building Contractor (B)Design Technology · Democratizing Delivery · Connecting Operations
- MONTEREY AND MWH CONSTRUCTORS, A JOINT VENTUREOakland · General Engineering Contractor (A) · Specialty Contractor · Fire Protection Contractor (C-16) · HVAC Contractor (C-20)
- MONTEREY MECHANICAL COOakland · General Engineering Contractor (A) · General Building Contractor (B) · Specialty Contractor · Earthwork & Paving Contractor (C-12) · Fire Protection Contractor (C-16) · HVAC Contractor (C-20) · Plumbing Contractor (C-36) · Sheet Metal Contractor (C-43)Full Service Construction · Emergency Services · Alternative Project Delivery
- MOORE JIMOakland · General Engineering Contractor (A) · General Building Contractor (B)
- MORISOLI BRAD CONSTRUCTIONLivermore · General Engineering Contractor (A) · General Building Contractor (B) · Electrical Contractor (C-10) · Plumbing Contractor (C-36)
- MOUNTAIN CASCADE INCLivermore · General Engineering Contractor (A) · Specialty Contractor
- N T CONSTRUCTIONHayward · General Engineering Contractor (A)
- NAPTA CONSTRUCTIONFremont · General Engineering Contractor (A) · General Building Contractor (B)
- NATIONAL DEVELOPMENT CAPITOLFremont · General Engineering Contractor (A) · General Building Contractor (B) · Specialty Contractor
- NATIONWIDE BOILER INCORPORATEDFremont · General Engineering Contractor (A) · Specialty ContractorBoiler Rentals · Boiler Equipment Sales · Emissions Control
- NATIVE SOIL INCOakland · General Engineering Contractor (A) · General Building Contractor (B) · Landscaping Contractor (C-27)
- NEXTECH SECURITY SOLUTIONSPleasanton · General Engineering Contractor (A) · General Building Contractor (B) · Electrical Contractor (C-10)
- NEXTGEN FINISHING SYSTEMS INCHayward · General Engineering Contractor (A) · General Building Contractor (B) · Drywall Contractor (C-9) · Electrical Contractor (C-10)
- NIELSEN CONSTRUCTION GENERAL CONTRACTORFremont · General Engineering Contractor (A) · General Building Contractor (B) · Drywall Contractor (C-9) · Electrical Contractor (C-10) · Painting Contractor (C-33)
- NORCAL ROCK INCOakland · General Engineering Contractor (A) · Demolition Contractor (C-21)Disposal · Recycling · Aggregate
- NORTH BAY DESIGN AND BUILD INCHayward · General Engineering Contractor (A) · General Building Contractor (B) · Electrical Contractor (C-10) · HVAC Contractor (C-20)
- NORTHGATE ENVIRONMENTAL MANAGEMENT INCOakland · General Engineering Contractor (A) · Specialty ContractorEnvironmental Assessment · Environmental Investigation and Remediat · Restoration and Resiliency
- NORTHWEST DESIGN AND CONSTRUCTION INCHayward · General Engineering Contractor (A) · General Building Contractor (B)
- O C JONES & SONS INCBerkeley · General Engineering Contractor (A) · Specialty Contractor
- OC JONES & SONSBerkeley · General Engineering Contractor (A) · Specialty ContractorSite grading · Excavation · Asphalt paving
- OLSON AND CO STEELSan Leandro · General Engineering Contractor (A) · General Building Contractor (B) · Steel Contractor (C-50, C-51)Fabrication / Field-erection · Engineering / Detailing · BIM Modeling
- ON SITE GENERAL ENGINEERING INCLivermore · General Engineering Contractor (A)
- ON-SITE COMMERCIAL SERVICES INCLivermore · General Engineering Contractor (A) · General Building Contractor (B)Directional boring · Trenching · Aerial restoration
- OTTER CONSTRUCTIONPleasanton · General Engineering Contractor (A) · Specialty Contractor · General Building Contractor (B) · Fire Protection Contractor (C-16)
- OUYANG GENERAL ENGINEERING INCSan Leandro · General Engineering Contractor (A) · General Building Contractor (B) · Electrical Contractor (C-10) · Fire Protection Contractor (C-16) · HVAC Contractor (C-20) · Plumbing Contractor (C-36)
- OWENCastro Valley · General Engineering Contractor (A) · General Building Contractor (B) · Specialty Contractor
- P & D ENVIRONMENTAL INCOakland · General Engineering Contractor (A) · Specialty Contractor
- P J PLUMBING INCOakland · General Engineering Contractor (A) · General Building Contractor (B) · Concrete Contractor (C-8) · Plumbing Contractor (C-36) · Specialty Contractor
- PAC BAY ENVIRONMENTAL SERVICES INCOakland · General Engineering Contractor (A) · Specialty Contractor · General Building Contractor (B) · Demolition Contractor (C-21)
- PACFIC STATES-TYRRELL A JOINT VENTUREDublin · General Engineering Contractor (A) · Specialty Contractor
- PACHECO LANDSCAPE & CONSTRUCTION INCLivermore · General Engineering Contractor (A) · Landscaping Contractor (C-27) · Painting Contractor (C-33)
- PACIFIC INFRASTRUCTUREPleasanton · General Engineering Contractor (A) · General Building Contractor (B) · Specialty ContractorHeavy civil water resource construction · Engineering solutions · Project management
- PACIFIC PLUMBING & UNDERGROUND CONSTRUCTIONFremont · General Engineering Contractor (A) · General Building Contractor (B) · Plumbing Contractor (C-36)Plumbing · General engineering · Municipal
- PACIFIC STATES - IO ENVIRINMENTAL A JOINT VENTUREDublin · General Engineering Contractor (A) · Demolition Contractor (C-21) · Landscaping Contractor (C-27) · Specialty Contractor
- PACIFIC STATES - SUKUT A JOINT VENTUREDublin · General Engineering Contractor (A) · Demolition Contractor (C-21) · Specialty Contractor
- PACIFIC STATES ENVIRONMENTAL CONTRACTORS INCDublin · General Engineering Contractor (A) · Specialty Contractor · Demolition Contractor (C-21)Earthwork · Environmental Remediation · Wetlands Restoration
- PACIFIC TRENCHLESS INCOakland · General Engineering Contractor (A)
- PAGANO PACIFIC CONSTRUCTIONSan Leandro · General Engineering Contractor (A) · General Building Contractor (B)
- PANGEA ENVIRONMENTAL SERVICES INCBerkeley · General Engineering Contractor (A) · Specialty Contractor
- PATH FORWARD PARTNERS INCOakland · General Engineering Contractor (A)Contaminated sites characterization · Soil, groundwater, and soil gas investig · Vapor intrusion assessments
- PEARL ENGINEERING AND CONSTRUCTIONOakland · General Engineering Contractor (A) · General Building Contractor (B)
- PENKOR WRECKINGSan Lorenzo · General Engineering Contractor (A) · General Building Contractor (B) · Demolition Contractor (C-21) · Specialty Contractor
- PHANTOM BUILDERSHayward · General Engineering Contractor (A) · General Building Contractor (B)
- PHILLIPS CONSTRUCTIONCastro Valley · General Engineering Contractor (A) · General Building Contractor (B)Excavation · Utility installation · Large site retail
- PICON F R P INCCastro Valley · General Engineering Contractor (A) · Painting Contractor (C-33) · Specialty Contractor
- PIPE AND PLANT SOLUTIONS INCHayward · General Engineering Contractor (A)
- PIPE SPY INCOakland · General Engineering Contractor (A) · Plumbing Contractor (C-36)
- PLANTED SOLAR INCOakland · General Engineering Contractor (A)
- PLATINUM PIPELINE INCLivermore · General Engineering Contractor (A)Underground pipeline systems constructio · Public works projects · Private works projects
- PLUNKETT WILLIAM TERRENCESan Leandro · General Engineering Contractor (A) · General Building Contractor (B)
- POWER ENGINEERING CONSTRUCTION COMPANYAlameda · General Engineering Contractor (A) · General Building Contractor (B) · Specialty ContractorMarine Construction · Heavy Civil Construction · Commercial Diving
- PRECISION CONCRETE ENGINEERING INCNewark · General Engineering Contractor (A)
- PRECISION SEWERSOakland · General Engineering Contractor (A) · Plumbing Contractor (C-36) · Specialty Contractor
- PRESIDIO SYSTEMS INCLivermore · General Engineering Contractor (A) · Electrical Contractor (C-10)
- PRISM ENGINEERING INCHayward · General Engineering Contractor (A) · General Building Contractor (B) · Electrical Contractor (C-10) · Specialty Contractor
- PROCESS ENGINEERS INCOakland · General Engineering Contractor (A) · Specialty Contractor
- PROFORMA CONSTRUCTION INCLivermore · General Engineering Contractor (A) · General Building Contractor (B) · Drywall Contractor (C-9)Design Assist/Build · Commercial · Adaptive Reuse
- PROVEN MANAGEMENT INCOakland · General Engineering Contractor (A) · General Building Contractor (B)Railway Transportation · Water Resources · Power
- R & B EQUIPMENT INCHayward · General Engineering Contractor (A) · Specialty Contractor · Demolition Contractor (C-21)
- R F MACDONALD CO LLCHayward · General Engineering Contractor (A) · Specialty Contractor
- R J S & ASSOCIATES INCHayward · General Engineering Contractor (A) · General Building Contractor (B) · Concrete Contractor (C-8) · Specialty Contractor
- RADIUS CONSTRUCTIONSan Lorenzo · General Engineering Contractor (A) · General Building Contractor (B)
- RADMAN ELECTRICHayward · General Engineering Contractor (A) · Electrical Contractor (C-10)
- RAHEBI CONSTRUCTION COMPANYOakland · General Engineering Contractor (A)
- RAITO INCUnion City · General Engineering Contractor (A) · Specialty ContractorGround stabilization · Liquefaction prevention · Slope stabilization
- RANDHAWA RAVILivermore · General Engineering Contractor (A) · General Building Contractor (B) · Specialty Contractor
- RANSOME COMPANYSan Leandro · General Engineering Contractor (A) · Electrical Contractor (C-10)Grading · Paving · Concrete
- RANTZ MICHAEL AAlameda · General Engineering Contractor (A) · General Building Contractor (B)
- RAPID GRADING SERVICESHayward · General Engineering Contractor (A) · Earthwork & Paving Contractor (C-12) · Specialty Contractor
- RAPOSO ENGINEERING INCHayward · General Engineering Contractor (A)
- RAY'S ELECTRICOakland · General Engineering Contractor (A) · Electrical Contractor (C-10)Roadway realignment · Underground infrastructure · Traffic signals
- REDGWICK CONSTRUCTION COOakland · General Engineering Contractor (A) · Specialty ContractorUnderground work · Grading · Roadway widening
- REI BUILD UP CONSTRUCTION CORPOakland · General Engineering Contractor (A) · General Building Contractor (B) · Concrete Contractor (C-8) · Steel Contractor (C-50, C-51)
- RENAISSANCE STONE CARE & WATERPROOFINGCastro Valley · General Engineering Contractor (A) · Painting Contractor (C-33) · Specialty Contractor
- RESTORCAP LLCOakland · General Engineering Contractor (A)
- REZCONOakland · General Engineering Contractor (A)
- RIDGEWAY FINISHING SYSTEMS INCHayward · General Engineering Contractor (A) · Electrical Contractor (C-10)
- RIELSAN GENERAL BUILDING AND MAINTENANCE INCHayward · General Engineering Contractor (A) · General Building Contractor (B)
- RNR GENERAL ENGINEERINGHayward · General Engineering Contractor (A)
- ROBERT J SIMMONS ENGINEERING & GENERAL CONTRACTORHayward · General Engineering Contractor (A) · Specialty Contractor · General Building Contractor (B) · Demolition Contractor (C-21) · Steel Contractor (C-50, C-51)
- RODAN BUILDERS INCHayward · General Engineering Contractor (A) · General Building Contractor (B) · Fencing Contractor (C-13) · Demolition Contractor (C-21)Education construction · Healthcare construction · General engineering
- RODAN OC JONES A JOINT VENTUREBerkeley · General Engineering Contractor (A) · General Building Contractor (B)
- RODOLA MICHAEL J CONSTR COPleasanton · General Engineering Contractor (A) · Earthwork & Paving Contractor (C-12)
- ROSAS BROTHERS CONSTRUCTIONOakland · General Engineering Contractor (A)
- ROSAS CONSTRUCTIONOakland · General Engineering Contractor (A)
- ROUTE 37 CONSTRUCTORSPleasanton · General Engineering Contractor (A) · General Building Contractor (B) · Specialty Contractor
- RUBEN & RAMONNewark · General Engineering Contractor (A)
- S & C ENTERPRISESCastro Valley · General Engineering Contractor (A) · General Building Contractor (B)
- S & S TRUCKINGOakland · General Engineering Contractor (A)End Dumps · ACS Transfers · Bottom Dumps
- S D V SERVICES INCAlameda · General Engineering Contractor (A)Construction · Steel & Rigging · Fuel Services
- S N BUILDINGSan Leandro · General Engineering Contractor (A) · General Building Contractor (B) · Electrical Contractor (C-10)
- SALARPI GIULIOAlameda · General Engineering Contractor (A) · Demolition Contractor (C-21)
- SANSEI GARDENS INCLivermore · General Engineering Contractor (A) · Concrete Contractor (C-8) · Landscaping Contractor (C-27)
- SANTUCCI PAUL GEN ENGINEERINGLivermore · General Engineering Contractor (A)
- SCI ENVIRONMENTAL LLCHayward · General Engineering Contractor (A) · Demolition Contractor (C-21) · Specialty Contractor
- SEIFERT ENGINEERING INCOakland · General Engineering Contractor (A) · General Building Contractor (B) · Electrical Contractor (C-10)Engineering · Electrical · Architecture
- SETTLEMIER B REIDOakland · General Engineering Contractor (A) · General Building Contractor (B)
- SEWER MASTER ENGINEERING INCOakland · General Engineering Contractor (A) · General Building Contractor (B)Sewer lateral replacement and certificat · Trenchless sewer pipe repair · Sewer pipe repair and installation
- SHAM FOOK HONGOakland · General Engineering Contractor (A) · General Building Contractor (B) · Fire Protection Contractor (C-16) · Plumbing Contractor (C-36)
- SHAMROCK DEVELOPMENT & CONSTRUCTION INCLivermore · General Engineering Contractor (A) · General Building Contractor (B)
- SHANGRI - LA BUILDER INCDublin · General Engineering Contractor (A) · General Building Contractor (B) · Electrical Contractor (C-10) · HVAC Contractor (C-20) · Plumbing Contractor (C-36)
- SHOOTER & BUTTS INCPleasanton · General Engineering Contractor (A) · General Building Contractor (B) · Landscaping Contractor (C-27)Commercial landscape design · Commercial landscaping · Paver services
- SILMAN INDUSTRIESSan Leandro · General Engineering Contractor (A) · General Building Contractor (B) · Electrical Contractor (C-10) · Steel Contractor (C-50, C-51) · Specialty ContractorAutomation · Industrial Construction
- SILVA'S PIPELINE INCHayward · General Engineering Contractor (A)
- SILVERADO CONTRACTORS INCEmeryville · General Engineering Contractor (A) · Specialty Contractor · General Building Contractor (B) · Demolition Contractor (C-21)Building Demolition · Selective Demolition · Power Plant/Industrial Demolition
- SIMMONS TRAVIS JHayward · General Engineering Contractor (A) · General Building Contractor (B) · Concrete Contractor (C-8) · Steel Contractor (C-50, C-51)
- SKUZA INTERIORS INCFremont · General Engineering Contractor (A) · General Building Contractor (B) · Specialty Contractor
- SMITH DENISON CONSTRUCTION COLivermore · General Engineering Contractor (A) · General Building Contractor (B) · Electrical Contractor (C-10) · Plumbing Contractor (C-36)General Engineering · Power Distribution · Utility Construction Services
- SOLCOM COMMUNICATIONS INCHayward · General Engineering Contractor (A) · Low Voltage Systems Contractor (C-7)
- SPLASH OF CLASS PAINTING AND CONSTRUCTIONCastro Valley · General Engineering Contractor (A) · General Building Contractor (B) · Landscaping Contractor (C-27) · Painting Contractor (C-33)
- SPOSETO ENGINEERING INCLivermore · General Engineering Contractor (A) · Concrete Contractor (C-8)Concrete · Structural Concrete & Steel · Concrete Repair & Access Ramps
- SSHC A CONSORTIUM COMPRISED OF SIEMENS MOBILITY INC AND SWH AAlameda · General Engineering Contractor (A) · Electrical Contractor (C-10)
- ST FRANCIS ELECTRIC INCSan Leandro · General Engineering Contractor (A) · Electrical Contractor (C-10)
- ST FRANCIS ELECTRIC LLCSan Leandro · General Engineering Contractor (A) · Electrical Contractor (C-10)
- STACY AND WITBECK INCAlameda · General Engineering Contractor (A) · Electrical Contractor (C-10)Client-Focused Project Management · Alternative Delivery · Complete Systems Solutions
- STACY AND WITBECK/GHILOTTI BROS A JOINT VENTUREAlameda · General Engineering Contractor (A)
- STACY WITBECK / MCGUIRE AND HESTER A JOINT VENTUREAlameda · General Engineering Contractor (A) · General Building Contractor (B) · Demolition Contractor (C-21) · Landscaping Contractor (C-27) · Specialty Contractor
- STACY WITBECK/INNOVATIVE CONSTRUCTION SOLUTIONS A JOINT VENTUREAlameda · General Engineering Contractor (A) · Demolition Contractor (C-21) · Specialty Contractor
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