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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 1251–1300 of 6058 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: Construct Acceleration Lanes \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 | Aug. 25, 2026 |
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Corporate: Trash Capture Devices, MVPs, MGS, Erosion Control, and Mod Lighting \u2013 Water pollution control program
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: Construct Acceleration Lanes \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 | Aug. 25, 2026 |
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Environmental Consultant Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 30, 2027 |
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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. 01, 2026 |
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Corporate: HMA (Type A), Minor Concrete, Modify Signal, and Ped Hybrid Beacon \u2013 Water pollution control program
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 02, 2026 |
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Asbestos and Lead Paint Consulting Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 27, 2026 |
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Corporate: Install Trash Capture Devices, Construct Maintenance Vehicle Pullouts \u2013 Water Pollution Control Program
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 01, 2026 |
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Corporate: Install Drainage Systems and Pvmt Delineation, Construct Driveway \u2013 Water pollution control program
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 27, 2026 |
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Corporate: HMA (Type A), Minor Conc, Modify Signal, and Ped Hybrid Beacon \u2013 WATER POLLUTION CONTROL PROGRAM
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 02, 2026 |
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Corporate: Construct retaining wall, MGS, cold plane & Pavement Widening \u2013 Water pollution control program
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 02, 2026 |
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Corporate: HMA, Cl 2 AB, Roadway Excavation, Concrete Barrier and Sign Structures \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 | Sep. 09, 2026 |
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Corporate: HMA, Cl 2 AB, Roadway Excavation, Concrete Barrier and Sign Structures - 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 | Sep. 09, 2026 |
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Corporate: Install Trash Capture Devices, Construct Maintenance Vehicle Pullouts \u2013 Water Pollution Control Program
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 01, 2026 |
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Corporate: Construct retaining Wall, MGS, Cold Plane & Pvmt Widening \u2013 Water Pollution Control Program Ls 1
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 02, 2026 |
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Consulting Services for a Solid Waste Rate Study
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: Cold plane, RHMA-G, SAMI, Drainage, Curb Ramps, And Electrical \u2013 Water Pollution Control Program
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 22, 2026 |
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Corporate: Construct Retaining Wall, MGS, cold plane & Pavement Widening \u2013 Water Pollution Control Program
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 02, 2026 |
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Corporate: Replace Drainage, Electrical Systems, and Guardrail with Concrete Barrier \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 | Sep. 24, 2026 |
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Chorro Creek Pikeminnow Suppression Service
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 25, 2026 |
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Corporate: Replace Drainage, Electrical Systems, and Guardrail with Concrete Barrier \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 | Sep. 24, 2026 |
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Corporate: Replace Drainage, Electrical Systems, and Guardrail with Concrete Barrier \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 | Sep. 24, 2026 |
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Condor GPS Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 27, 2026 |
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Vernal Pool Fairy Shrimp Monitoring
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 27, 2026 |
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Monitoring and Census Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 27, 2026 |
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ENVIRONMENTAL ASSESSMENT SERVICES
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: Construct Acceleration Lanes \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 | Aug. 25, 2026 |
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Corporate: Construct Acceleration Lanes \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 | Aug. 25, 2026 |
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Corporate: Concrete Barrier, Crash Cushion, & Rock Slope Protection - Water pollution control program
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 10, 2026 |
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Corporate: Concrete Barrier, Crash Cushion, & Rock Slope Protection \u2013 Water Pollution Control Program
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 10, 2026 |
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Fire Station 25 - 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. 11, 2026 |
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Corporate: HMA (Type A), Minor Concrete, Modify Signal, and Ped Hybrid Beacon \u2013 Water Pollution Control Program
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 02, 2026 |
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Environmental Documentation
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 10, 2026 |
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Corporate: Construct JPCP, HMA, Drainage System, sign structures, and Electrical System \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: Construct JPCP, HMA, Drainage System, sign structures, and Electrical System \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: 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 Stormwater Pollution Prevention 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 Stormwater Annual Report Ea 2
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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Analytical Testing Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 07, 2026 |
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Assessment and Monitoring (A&M) Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 12, 2026 |
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Corporate: Place bridge Scour Protection \u2013 Water pollution control program
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: Wastewater System Expansion Project - Environmental monitoring
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 - Environmental laboratory testing and analytical services
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 - Safety, environmental, and compliance support services
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: HMA, RHMA, Imported Borrow, Clearing & Grubbing, and Lighting System \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 | Sep. 09, 2026 |
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Corporate: HMA, RHMA, Imported Borrow, Clearing & Grubbing, and Lighting 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 | Sep. 09, 2026 |
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Air Emissions Source Testing
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 04, 2026 |
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Methane Surface Emissions Monitoring
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 16, 2026 |
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Emissions Testing
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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LANDFILL GROUNDWATER MONITORING SERVICES
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 09, 2026 |
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