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The Professional, Scientific, and Technical Services sector comprises establishments that specialize in performing professional, scientific, and technical activities for others. These activities require a high degree of expertise and training. The establishments in this sector specialize according to expertise and provide these services to clients in a variety of industries and, in some cases, to households. Activities performed include: legal advice and representation; accounting, bookkeeping, and payroll services; architectural, engineering, and specialized design services; computer services; consulting services; research services; advertising services; photographic services; translation and interpretation services; veterinary services; and other professional, scientific, and technical services. This sector excludes establishments primarily engaged in providing a range of day-to-day office administrative services, such as financial planning, billing and recordkeeping, personnel, and physical distribution and logistics. These establishments are classified in Sector 56, Administrative and Support and Waste Management and Remediation Services.
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Showing 351–400 of 5691 bids that are currently: Active.
Denotes bidding opportunities that have been amended
| California - US | Agency | Bid Type | Due Date | As PDF |
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Corporate: JCSD Intervalley Pipeline Project - SWPPP
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 18, 2026 |
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Corporate: JCSD Intervalley Pipeline Project - Survey
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 18, 2026 |
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SEWER MASTER PLAN AND SEWER SYSTEM MANAGEMENT PLAN UPDATE
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 17, 2026 |
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Corporate: JCSD Intervalley Pipeline Project - Materials Testing
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 18, 2026 |
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Design-Build Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 24, 2026 |
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Advanced Metering Infrastructure (AMI) System Project
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 25, 2026 |
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Corporate: Roadway Excavation and Hot Mix Asphalt (Type A) \u2013 Stormwater Pollution Prevention Plan
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 06, 2026 |
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Corporate: Roadway Excavation and Hot Mix Asphalt (Type A) \u2013 Pre-Storm Event Inspection Report
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 06, 2026 |
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Corporate: Roadway Excavation and Hot Mix Asphalt (Type A) \u2013 During-And Post-Storm Event Inspection Report
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 06, 2026 |
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Corporate: Roadway Excavation and Hot Mix Asphalt (Type A) \u2013 Stormwater Annual Report
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 06, 2026 |
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Corporate: Roadway Excavation and Hot Mix Asphalt (Type A) \u2013 Noise Monitoring
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 06, 2026 |
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Corporate: Gumtree and Knoll Park Pipeline Replacement Project - SWPPP
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 29, 2026 |
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Corporate: Gumtree and Knoll Park Pipeline Replacement Project - Traffic control plan
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 29, 2026 |
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Corporate: Gumtree and Knoll Park Pipeline Replacement Project - Surveying
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 29, 2026 |
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Corporate: Gumtree and Knoll Park Pipeline Replacement Project - Geotechnical compaction testing
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 29, 2026 |
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Corporate: Intervalley Pipeline Project - SWPPP
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 18, 2026 |
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Corporate: Intervalley Pipeline Project - Traffic Control Plan Prep
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 18, 2026 |
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Corporate: Intervalley Pipeline Project - Survey
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 18, 2026 |
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Corporate: Construct JPCP, HMA, Drainage System, sign structures, and Electrical System \u2013 Pre-Storm Event Inspection Report
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 06, 2026 |
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Corporate: Construct JPCP, HMA, Drainage System, sign structures, and Electrical System \u2013 During-And Post-Storm Event Inspection Report
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 06, 2026 |
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Corporate: Construct JPCP, HMA, Drainage System, sign structures, and Electrical System \u2013 Stormwater Annual Report
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 06, 2026 |
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Corporate: Construct JPCP, HMA, Drainage System, sign structures, and Electrical System \u2013 Lead Compliance Plan
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 06, 2026 |
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Corporate: Construct JPCP, HMA, Drainage System, sign structures, and Electrical System \u2013 Pre-Storm Event Inspection Report
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 06, 2026 |
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Corporate: Construct JPCP, HMA, Drainage System, sign structures, and Electrical System \u2013 During-And Post-Storm Event Inspection Report
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 06, 2026 |
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Corporate: Construct JPCP, HMA, Drainage System, Sign Structures, and Electrical System \u2013 Lead Compliance Plan Ls 1
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 06, 2026 |
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Corporate: Construct JPCP, HMA, Drainage System, Sign Structures, and Electrical System \u2013 Time-Related Overhead (Wday) Wday 220
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 06, 2026 |
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Corporate: JCSD Intervalley Pipeline Project - Surveying
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 18, 2026 |
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Corporate: JCSD Intervalley Pipeline Project - Testing and inspection
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 18, 2026 |
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Corporate: JCSD Intervalley Pipeline Project - SWPPP and environmental services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 18, 2026 |
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PROFESSIONAL DESIGN SERVICES PUBLIC WATER SYSTEM
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 17, 2026 |
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Building and Safety Inspection, Permit Technician
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 15, 2026 |
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Mission & Thomas HAWK
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 22, 2026 |
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Corporate: JCSD Intervalley Pipeline Project - Survey
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 18, 2026 |
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Corporate: JCSD Intervalley Pipeline Project - Settlement Monitoring
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 18, 2026 |
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Corporate: JCSD Intervalley Pipeline Project - SWPPP\/BMP
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 18, 2026 |
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Architectural and Engineering Design Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 23, 2026 |
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Design Engineering and Environmental Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 25, 2026 |
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Geotechnical Engineering Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 22, 2026 |
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Animal Shelter Phased Expansion Feasibility \/ Design
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 14, 2026 |
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Corporate: Wastewater System Expansion Project - SWPPP preparation
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 08, 2026 |
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Corporate: Monitoring Well AR-MW-04 IEUA 1158 Reservoir Site Project - Geophysical logging and borehole surveys
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 17, 2026 |
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Corporate: Monitoring Well AR-MW-04 IEUA 1158 Reservoir Site Project - Land surveying
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 17, 2026 |
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Corporate: Water Line Replacement - SWPPP
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 21, 2026 |
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Corporate: Water Line Replacement - Survey
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 21, 2026 |
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Corporate: Construct Bridge, Aux Lanes, Geo Reinf Emb, Rock Exc, Elect, Landscape \u2013 Qa\/Qc
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 01, 2026 |
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Corporate: Water Line Replacement at Oakland and Santa Fe - Surveying
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 22, 2026 |
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Corporate: Water Line Replacement at Oakland and Santa Fe - Water Quality Control
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 22, 2026 |
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Development Opportunity
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 07, 2026 |
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Design-Assist Construction of the Dry Creek Wastewater Treatment Plant
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 08, 2026 |
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Professional Engineering Design Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 25, 2026 |
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