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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 1001–1050 of 5534 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: Sign Structure - 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 | Dec. 17, 2025 |
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Corporate: Wall Construction, Earthwork, and Drainage - 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 | Jan. 08, 2026 |
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Corporate: Wall Construction, Earthwork, and Drainage - 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 | Jan. 08, 2026 |
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Corporate: Wall Construction, Earthwork, and Drainage - Invasive Species Control
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 08, 2026 |
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Comprehensive Coastal Program Update
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 22, 2025 |
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California Environmental Quality Act (CEQA) Consulting Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 07, 2026 |
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Corporate: Cold plane & HMA overlay, replace MGS & Culv, & modify Elect Systems \u2013 Stormwater Management
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 07, 2026 |
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Corporate: Cold plane & HMA overlay, replace MGS & Culv, & modify Elect Systems \u2013 Environmental Protection Measures
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 07, 2026 |
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Environmental Utilities Organizational Efficiency and Effectiveness Assessment
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 08, 2026 |
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Corporate: Place HMA and Replace Culverts and Fencing \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 | Dec. 17, 2025 |
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Corporate: Place HMA and Replace Culverts and Fencing \u2013 Water Quality Annual Report
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 17, 2025 |
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Corporate: Place HMA and Replace Culverts and Fencing \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 | Dec. 17, 2025 |
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Corporate: Place HMA and Replace Culverts and Fencing \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 | Dec. 17, 2025 |
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Corporate: Place HMA and Replace Culverts and Fencing \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 | Dec. 17, 2025 |
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Corporate: Place HMA and Replace Culverts and Fencing \u2013 Water Quality Annual Report
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 17, 2025 |
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Corporate: Cold Plane & HMA Overlay, Replace MGS & Culvert, & Modify Electrical Systems \u2013 Environmental Protection Measures
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 07, 2026 |
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Environmental Consulting Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 19, 2026 |
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Corporate: Wall Construction, Earthwork, and Drainage \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 | Jan. 08, 2026 |
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Corporate: Wall Construction, Earthwork, and Drainage \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 | Jan. 08, 2026 |
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Corporate: Wall Construction, Earthwork, and Drainage \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 | Jan. 08, 2026 |
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Corporate: Wall Construction, Earthwork, and Drainage \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 | Jan. 08, 2026 |
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On-Call Environmental Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 08, 2026 |
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COMMUNITY WILDFIRE PROTECTION PLAN (CWPP) DEVELOPMENT
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 09, 2026 |
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Corporate: Retaining Walls, Minor Concrete, Earthwork, And Modify Electrical \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 | Jan. 06, 2026 |
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Corporate: Retaining Walls, Minor Concrete, Earthwork, And Modify Electrical \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 | Jan. 06, 2026 |
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CEQA Services for Rebuilding Fire Stations 24 & 26
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 26, 2026 |
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Wildfire Vulnerability Assessment
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 09, 2026 |
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Corporate: Retaining Walls, Minor Concrete, Earthwork, And Modify Electrical \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 | Jan. 06, 2026 |
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Corporate: Retaining Walls, Minor Concrete, Earthwork, And Modify Electrical \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 | Jan. 06, 2026 |
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Corporate: Place HMA and Replace Culverts and Fencing \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 | Dec. 17, 2025 |
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Corporate: Place HMA and Replace Culverts and Fencing \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 | Dec. 17, 2025 |
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Corporate: 01-0J8014 Wall Construction, Earthwork, and Drainage \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 | Jan. 08, 2026 |
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Corporate: 01-0J8014 Wall Construction, Earthwork, and Drainage \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 | Jan. 08, 2026 |
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Corporate: Western Trunk Line Phase 2A - ENVIRONMENTAL \u2013 WATER QUALITY
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 18, 2025 |
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Corporate: Cold Plane, RHMA-G, Polyester Concrete Overlay, CB, Replace POC, & CMS 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 | Jan. 22, 2026 |
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Corporate: Cold Plane, RHMA-G, Polyester Concrete Overlay, CB, Replace POC, & CMS 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 | Jan. 22, 2026 |
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Corporate: Cold Plane, RHMA-G, Polyester Concrete Overlay, CB, Replace POC, & CMS System \u2013 Stormwater Sampling And Analysis Day
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 22, 2026 |
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Corporate: Cold Plane, RHMA-G, Polyester Concrete Overlay, CB, Replace POC, & CMS System \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 | Jan. 22, 2026 |
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Multi-Jurisdiction Local Hazard Mitigation Plan
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 05, 2026 |
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Corporate: Bridge Rehabilitation and Replacement Program \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 | Jan. 08, 2026 |
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Corporate: AVALON PEDESTRIAN BRIDGE AND PROMENADE GATEWAY - ENVIRONMENTAL
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 22, 2025 |
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Corporate: POLA AVALON PEDESTRIAN BRIDGE AND PROMENADE GATEWAY - ENVIRONMENTAL
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 22, 2025 |
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Corporate: POLA AVALON PEDESTRIAN BRIDGE AND PROMENADE GATEWAY - ENVIRONMENTAL
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 22, 2025 |
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Corporate: Place HMA and Replace Culverts and Fencing \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 | Dec. 17, 2025 |
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Corporate: Place HMA and Replace Culverts and Fencing \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 | Dec. 17, 2025 |
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Corporate: Vista Grande Drainage Basin Improvements - Environmental
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 16, 2026 |
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Corporate: Bridge Railing and Concrete Curb Ramps \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 | Jan. 06, 2026 |
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Corporate: Napa River \/ Napa Creek Flood Protection Project - Floodwalls North of the Bypass - Arborist
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 09, 2026 |
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Corporate: Modify Signal & Lighting, and Construct ADA Ramps \u2013 Asbestos Compliance Plan
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 07, 2026 |
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Environmental Consultants
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 31, 2026 |
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