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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| California - US | Agency | Bid Type | Due Date | As PDF |
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Consulting & Professional Services Master A
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 15, 2027 |
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Economic Vitality Strategic Plan
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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WIOA Title I - Career Services - Adult & Dislocated Worker
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 10, 2025 |
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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: P961U Integrated Training Facility - SWPPP
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 11, 2025 |
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Corporate: P961U Integrated Training Facility - 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. 11, 2025 |
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Corporate: P961U Integrated Training Facility - Archaeological and Cultural Monitoring
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 11, 2025 |
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Interim Final Rule Guidance
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 31, 2025 |
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54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 10, 2025 |
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Water Study
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: I-280\/WOLFE ROAD INTERCHANGE IMPROVEMENT - VIBRATION MONITORING
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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Consultant Services
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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54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 15, 2025 |
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Paratransit Eligibility Assessment Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 15, 2025 |
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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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Department of Child Support Services \u2013 Process Server
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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Bond Underwriting Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 11, 2025 |
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Alternative Methodology
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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Confidential Transcription Services
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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54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jan. 04, 2026 |
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54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 15, 2025 |
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Evaluation of Job Duties and Training Manual Development
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 11, 2025 |
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MEDIA RESEARCH, BUYING AND ANALYSIS CONSULTING SERVICES
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 10, 2025 |
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Facilitator Services for Victim Awareness, Victim Impact, and Restorative Justice
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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COUNTYWIDE COMMUNITY-BASED CASE MANAGEMENT SERVICES
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 15, 2025 |
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Corporate: ALMADEN VALLEY PIPELINE REPLACEMENT PROJECT PHASE 1 - Biological Consultancy Services
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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Municipal Housing Agency Study
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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Technical Assistance & Capacity Building
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 12, 2025 |
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Indirect Cost Allocation Plan and Analysis
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 10, 2025 |
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DBE PROGRAM SUBRECIPIENT REPORTING AND TECHNICAL SUPPORT SERVICES
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 15, 2025 |
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Retail Recruitment Consulting Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 11, 2025 |
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Employment and Economic Development Department
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 10, 2025 |
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Corporate: Construct Truck Climbing Lanes & Replace Bridges \u2013 Contractor-Supplied Biologist
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: Construct Bridge Railing \u2013 Time-Related Overhead (Wday) Wday 500
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 10, 2025 |
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Corporate: LONDON COMMUNITY SERVICES DISTRICT WATER SYSTEM RELIABILITY PROJECT - SWPPP
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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Economic Development Strategic 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: Construct Bridge Railing \u2013 Dispute Resolution Advisor On-Site Meeting Ea 5
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 10, 2025 |
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Corporate: Construct Bridge Railing \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 | Dec. 10, 2025 |
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Corporate: I-280\/Wolfe Interchange Improvement - Vibration Monitoring
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: I-280\/Wolfe Interchange Improvement - Crack Monitoring
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: I-280\/Wolfe Interchange Improvement - 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. 18, 2025 |
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Corporate: I-280\/Wolfe Interchange Improvement - Maintain Temporary Water Pollution Control Measures
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: I-280\/Wolfe Interchange Improvement - ADL Burial Location Report
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: I-280\/Wolfe Interchange Improvement - Noise Monitoring
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: Construct Bridge Railing \u2013 Dispute Resolution Advisor On-Site Meeting Ea 5
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 10, 2025 |
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Corporate: Construct Bridge Railing \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 | Dec. 10, 2025 |
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ADA Transition Plan and Section 504 Self Evaluation Consulting 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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Vista Santa Rosa 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. 05, 2026 |
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Comprehensive Zoning and Municipal Code Update
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 10, 2025 |
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Safe Sleep Program
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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