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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 1101–1150 of 5784 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: Inland Feeder\/SBVMWD Foothill PS Intertie, Stage 1 - Quality Control 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: Inland Feeder\/SBVMWD Foothill PS Intertie, Stage 1 - Traffic Control
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: Inland Feeder\/SBVMWD Foothill PS Intertie, Stage 1 - Pollution Control
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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HOME SAFE PROGRAM SERVICES
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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CD8 Nations Plaza Strategic Planning & Development
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 26, 2026 |
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General Liability Third Party Administration Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 02, 2026 |
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ARTISTS & CURATORS FOR PUBLIC ART EXHIBITION
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 16, 2026 |
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Numerical Weather Prediction Research and Development Notice of Intent to Sole Source
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Sep. 18, 2026 |
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Administration of Direct Toilet Installation Program
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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Professional Services for Performing Arts Center Renovation
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 30, 2026 |
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City Surveyor Consultant 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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Unsheltered Point-in-Time Count
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 30, 2026 |
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EXECUTIVE RECRUITMENT SERVICES
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: Construct Retaining Wall, MGS, Cold Plane & Pavement Widening \u2013 Dispute Resolution Advisor On-Site Meeting Ea 4
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 30, 2026 |
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Corporate: Construct Retaining Wall, MGS, Cold Plane & Pavement Widening \u2013 Hourly Off-Site Dispute-Resolution-Advisor-Related Tasks Hr 10
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 30, 2026 |
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Corporate: Construct Retaining Wall, MGS, Cold Plane & Pavement 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. 30, 2026 |
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Corporate: Copper Basin Reservoir Discharge Valve Replacement - UNDERWATER DRIVERS
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: Curb Ramps, Remove And Replace Sidewalk, And Signal And Lighting \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 | Oct. 13, 2026 |
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Corporate: Curb Ramps, Remove And Replace Sidewalk, And Signal And Lighting \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 | Oct. 13, 2026 |
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Corporate: Curb Ramps, Remove And Replace Sidewalk, And Signal And Lighting \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. 13, 2026 |
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Corporate: Curb Ramps, Remove And Replace Sidewalk, And Signal And Lighting \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. 13, 2026 |
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2027 BayREN Legal and Regulatory Support Services Bench
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 12, 2026 |
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Preparation of Technical Transportation Studies
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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Economic Development Strategic Planning Services
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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Cost Allocation Plan and User Fee Study Services
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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Notice of Intent to Sole Source to GEI Consultants Inc. (GEI)
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Prebids | Sep. 17, 2026 |
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SYSTEM DELTA 84 (SYD 84\/MT) MEDIUM EARTH ORBIT MISSILE WARNING \/ MISSILE TRACKING EPOCH 3 and EPOCH 4, REQUEST FOR INFORMATION (RFI)
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Dec. 01, 2026 |
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Historic Preservation Ordinance Update Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 02, 2026 |
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Grant Development Services
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: Protective Coatings Services - Southern California SWP Facilities - Certified Industrial Hygienist
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 - TRAFFIC CONTROL
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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Underground Storage Tank Inspection & Repair IDIQ
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Sep. 17, 2026 |
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NRCS Local Data Collection Central Valley, Central Sierra, CA
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Sep. 15, 2026 |
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Child Care Expansion Grant Program Design and Administration
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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Labor Compliance Consultant Services
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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Document Management System
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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Public Outreach Services
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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OPEN SOURCE INTELLIGENCE (OSINT) AND INVESTIGATIVE 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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Corporate: Roadway Excavation, HMA, And Modifying Lighting Systems \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. 23, 2026 |
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Community Engagement #2 for the Uninsured Program Services
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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Sports Team and Facility Development Feasibility Study
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 15, 2026 |
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2026 Development-Related Fee Study
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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Appraisal and Appraisal Acquisition Services
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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Data Processing, Printing, and Mailing Services
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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Request for Information (RFI) \/ Containerized Payload Capabilities
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Sep. 25, 2026 |
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COMBINED SYNOPSIS\/RFQ FOR GEOPOLITICAL ANALYSIS SUBJECT MATTER EXPERT (SME) SERVICES
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Sep. 16, 2026 |
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Request for Information (RFI) \/ Containerized Payload Capabilities
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Prebids | Sep. 25, 2026 |
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NASA FFRDC at the Jet Propulsion Laboratory - Competitive Procurement Request for Information (RFI) \/ Sources Sought Notice (SSN)
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Prebids | Sep. 24, 2026 |
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Notice of Intent to Sole Source: Vaccine Adverse Event Reporting System (VAERS) & Safety Monitoring Support
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Prebids | Sep. 18, 2026 |
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Corporate: Roadway Excavation, Place HMA and Install Corrugated Steel Pipe \u2013 Contractor-Supplied Biologist (Ls)
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 13, 2026 |
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