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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 901–950 of 5573 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: Almaden Valley Pipeline Replacement Project \u2013 Phase 1 (C0714) - TRAFFIC CONTROL SYSTEM
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: Almaden Valley Pipeline Replacement Project \u2013 Phase 1 (C0714) - ENVIRONMENTAL\u2013AIR QUALITY
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: Almaden Valley Pipeline Replacement Project \u2013 Phase 1 (C0714) - ENVIRONMENTAL\u2013BIOLOGICAL STUDIES
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: Almaden Valley Pipeline Replacement Project \u2013 Phase 1 (C0714) - CONSTRUCTION SCHEDULING
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: Almaden Valley Pipeline Replacement Project \u2013 Phase 1 (C0714) - GEOTECHNICAL INSTRUMENTATION & MONITORING
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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Professional and Technical Assistance
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 20, 2026 |
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Corporate: Cold Plane, RHMA-G, Polyester Concrete Overlay, CB, Replace POC, & CMS System \u2013 Public Safety 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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Board and Administrative Services Team Building Consultant
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 15, 2026 |
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Records & Information Management (RIM) Program Review
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 21, 2026 |
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Comprehensive Update to the Districts Master Plan
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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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. 14, 2026 |
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Communications and Public Relations 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. 09, 2026 |
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Utility Rebate Management System
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 21, 2026 |
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Corporate: Bridge Rehabilitation and Replacement Program \u2013 Public Safety 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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Efficiency\/Operational Audit Services
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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Strategic Communications - City Administration and Economic Development
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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Rate Study
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 21, 2026 |
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Low Temperature Insulation
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Prebids | Dec. 23, 2025 |
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RFI for Ground Bounce NaaS
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Dec. 19, 2025 |
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Supplemental Enrichment Providers
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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Go Human Safety Strategies
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: O'Reilly - Supervision
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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Enrichment Programming and Staffing Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 27, 2026 |
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Hearing Officer Services
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: O'Reilly - Supervision
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: O'Reilly (conv) - Supervision
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 29, 2025 |
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Peer Workforce Development Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 13, 2026 |
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Foodware Ordinance Assessment and Survey
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 03, 2026 |
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Corporate: POLA AVALON PEDESTRIAN BRIDGE AND PROMENADE GATEWAY - SWPPP
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 - QUALITY CONTROL
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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Biological Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 12, 2026 |
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Parks & Recreation Master Plan
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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CalAIM and Pretrial Service Transition
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 05, 2026 |
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Corporate: Modify Signal & Lighting, and Construct ADA Ramps \u2013 Time-Related Overhead (Wday) Wday 160
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: Modify Signal & Lighting, and Construct ADA Ramps \u2013 Dispute Resolution Advisor On-Site Meeting Ea 1
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: Modify Signal & Lighting, and Construct ADA Ramps \u2013 Hourly Off-Site Dispute-Resolution-Advisor-Related Tasks Hr 4
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: Modify Signal & Lighting, and Construct ADA Ramps \u2013 Time-Related Overhead (Wday)
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: Modify Signal & Lighting, and Construct ADA Ramps \u2013 Dispute Resolution Advisor On-Site Meeting
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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Feasibility Study
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 03, 2026 |
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Arena Center Uses
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 23, 2026 |
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Corporate: SDUSD Bird Rock Elementary School Whole Site Modernization - SWPPP and Erosion Control
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 20, 2026 |
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Adult Full Service Partnership Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 12, 2026 |
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Corporate: Sewer Collection System Pipeline Rehabilitation and Replacement Project Phase 9 - Traffic Control
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 13, 2026 |
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Corporate: Water System Reliability Project - Pipelines & Appurtenances - SWPPP
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 19, 2025 |
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Corporate: Roseville Rd. & Butternut Dr. Intersection & Systematic Signalized Intersection Improvements - TRAFFIC CONTROL
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 04, 2026 |
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Cannabis, Pesticide, and Witness Testimony Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 29, 2025 |
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Labor Enforcement Task Force\/Public Works
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 19, 2026 |
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Notice of Intent to Sole Source to Brigham Young University
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Prebids | Dec. 17, 2025 |
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Corporate: Modify Signal & Lighting, and Construct ADA Ramps \u2013 Public Safety 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 | Jan. 07, 2026 |
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Corporate: Modify Signal & Lighting, and Construct ADA Ramps \u2013 Hourly Off-Site Dispute-Resolution-Advisor-Related Tasks
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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