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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 251–300 of 5655 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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As-Needed Consultant Services-2025-23
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 28, 2030 |
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NAWCWD Industry Day Event (now called California Contracting\/Acquisition\/Procurement (C-CAP) Expo)
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Prebids | Feb. 05, 2026 |
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NAWCWD Attending California Contracting\/Acquisition\/Procurement (C-CAP) Expo
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Prebids | Feb. 05, 2026 |
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State Coastal Conservancy
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 25, 2026 |
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Consulting Architectural and Engineering Design Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 12, 2026 |
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PROGRESSIVE DESIGN-BUILD CABRILLO MOLE REVITALIZATION PHASE II
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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INNOVATIVE AFFORDABLE HOUSING
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 27, 2026 |
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ARCHITECTURAL SERVICES
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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Big Bear Alpine Zoo Strategic Planning
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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BE WELL Phase 2 Campus Progressive Design Build
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 13, 2026 |
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Engineering & Street Design Services
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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Architectural & Engineering Design Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 26, 2026 |
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Corporate: Roseville Rd. & Butternut Dr. Intersection & Systematic Signalized Intersection Improvements - GEOTECH ENGINEERS
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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Corporate: Roseville Rd. & Butternut Dr. Intersection & Systematic Signalized Intersection Improvements - SURVEYING
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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Corporate: Roseville Rd. & Butternut Dr. Intersection & Systematic Signalized Intersection Improvements - SWPP PLAN ONLY
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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Casa Peralta Restoration Estimate
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 18, 2026 |
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Services To Develop a Master Plan
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 18, 2026 |
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Services to Develop a Master Plan
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 20, 2026 |
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Water Quality Control Plant Master Plan
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 17, 2026 |
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Design Services for Electrical Upgrades - Main Switchboard Assembly
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 09, 2026 |
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Elena-Blanca Pressure Zone Consolidation Design
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 12, 2026 |
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Sunrise Tomorrow Specific Plan - Frontage Improvement 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: RUSD Lincoln High School Portable Relocation - Surveys
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: SAN LEANDRO CHANNEL PIPELINE CROSSING - Special Inspections
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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Right of Way Engineering Services-RVB Grade Separation
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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CIP 086 Sedco MDP Line F-2 Storm Drain Project
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 12, 2026 |
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HSR25-92 Co-Development Agreement
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 04, 2026 |
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Mixed-Use Development Master Planning Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 13, 2026 |
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Redesign Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 06, 2026 |
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Design-Build Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 12, 2026 |
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Outfall Design Services
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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Engineering and Environmental Remediation Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 20, 2026 |
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K Line TPSS #4 & #7
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 20, 2026 |
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Corporate: Vista Grande Drainage Basin Improvements - Develop Water Supply
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 06, 2026 |
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Corporate: Vista Grande Drainage Basin Improvements - Materials Testing
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 06, 2026 |
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Corporate: Vista Grande Drainage Basin Improvements - Survey
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 06, 2026 |
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Corporate: Vista Grande Drainage Basin Improvements - Geotechnical Engineering
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 06, 2026 |
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Corporate: Vista Grande Drainage Basin Improvements - SWPPP Planning
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 06, 2026 |
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Municipal Facility Energy Assessments
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 06, 2026 |
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International Swim Center Rehabilitation Phase 2 Project
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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Street Drainage Canal Structural Investigation
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: Laguna Creek Multi-Functional Corridor - GEOTECH ENGINEERS
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 17, 2026 |
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Corporate: Laguna Creek Multi-Functional Corridor - SURVEYING
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 17, 2026 |
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Corporate: Laguna Creek Multi-Functional Corridor - SWPP PLAN ONLY
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 17, 2026 |
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General Herpetofauna Survey
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: JPCP, HMA, Aggregate Base, Earthwork and Bridge \u2013 SWPPP
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 08, 2026 |
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Architectural & Engineering Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 05, 2026 |
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Design-Assist Construction - Building Fa\u00E7ade and Envelope Rehabilitation
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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Architectural-Engineering and Related Professional Design Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Feb. 10, 2026 |
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Entertainment District Master Developer
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 10, 2026 |
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