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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 351–400 of 5995 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: Construct Acceleration Lanes \u2013 TIME-RELATED OVERHEAD (LS) LS LUMP SUM
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 25, 2026 |
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Corporate: Construct Acceleration Lanes \u2013 DURING-AND POST-STORM EVENT INSPECTION REPORT
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 25, 2026 |
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Corporate: Construct Conc Barrier & MGS, Install Striping and Signing \u2013 LEAD COMPLIANCE PLAN LS LUMP SUM
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 18, 2026 |
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Corporate: Construct Conc Barrier & MGS, Install Striping and Signing \u2013 TIME-RELATED OVERHEAD (WDAY) WDAY 90
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 18, 2026 |
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Infrastructure Leading Land Use
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 04, 2026 |
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Update the City\u2019s Traffic Signal Communication Master Plan
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 24, 2026 |
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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 | Aug. 18, 2026 |
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Watersheds Asset Management and Stewardship Planning Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 21, 2026 |
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Corporate: Rdwy Exc, HMA, RHMA, Cl 2 AB, Conc. & Temp Barrier, and Mobilization \u2013 STORMWATER ANNUAL REPORT EA 3
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 03, 2026 |
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CIVIL ENGINEER CONSULTANT
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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Corporate: Construct Acceleration Lanes \u2013 Lead Compliance Plan
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 25, 2026 |
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Corporate: Construct Acceleration Lanes \u2013 SWPPP
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 25, 2026 |
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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 | Aug. 18, 2026 |
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Design-Build Services for Solar and Energy Storage Installations
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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Fair Oaks Substation 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 | Aug. 27, 2026 |
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Environmental Compliance and Engineering Support Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 31, 2026 |
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Materials Testing
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 21, 2026 |
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CONSULTANT AND ON-CALL SERVICES RELATED TO LANDSCAPE ARCHITECT SERVICES
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 24, 2026 |
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Corporate: JUSD Rustic Lane ES Modernization Increment #2 - Survey
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 27, 2026 |
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Street State Parking Garage
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 19, 2026 |
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Land Surveying Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 25, 2026 |
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Specialty Field Support, Analysis and Engineering Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 27, 2026 |
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Unit 4 Repowering Project - Engineering, Procurement, and Construction Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 21, 2026 |
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Corporate: Construct Maintenance Facilities \u2013 LEAD COMPLIANCE PLAN LS LUMP SUM
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 27, 2026 |
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Corporate: Construct Maintenance Facilities \u2013 LEVEL 2 CRITICAL PATH METHOD SCHEDULE LS LUMP SUM
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 27, 2026 |
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Corporate: Construct Maintenance Facilities \u2013 TIME-RELATED OVERHEAD (WDAY) WDAY 685
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 27, 2026 |
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Corporate: Construct Maintenance Facilities \u2013 ASBESTOS COMPLIANCE PLAN LS LUMP SUM
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 27, 2026 |
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Traffic Signal Design
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 19, 2026 |
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Corporate: Santa Monica HS Student Services Bldg. - Increment 2B - Survey
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 03, 2026 |
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Corporate: AEWSD FRICK UNIT - PHASE 3 LATERALS - SWPPP
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 18, 2026 |
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Corporate: 7th Street 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 | Aug. 19, 2026 |
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Corporate: Install anchored Double Twisted Wire Mesh System and Erosion Control \u2013 Lead compliance plan
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 25, 2026 |
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Corporate: Install anchored Double Twisted Wire Mesh System and Erosion Control \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 | Aug. 25, 2026 |
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Corporate: Methacrylate, Polyester Overlay, Joint Seal Repair and Spall Repair \u2013 Lead compliance plan
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 25, 2026 |
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Corporate: Methacrylate, Polyester Overlay, Joint Seal Repair and Spall Repair \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 | Aug. 25, 2026 |
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Safe-Route-to-School Master Plan Development
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 28, 2026 |
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Environmental and Planning IDC\/IDIQ
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Prebids | Aug. 26, 2026 |
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Corporate: Methacrylate, Polyester Overlay, Joint Seal Repair and Spall Repair \u2013 Lead compliance plan
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 25, 2026 |
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Corporate: Methacrylate, Polyester Overlay, Joint Seal Repair and Spall Repair \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 | Aug. 25, 2026 |
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Corporate: Methacrylate, Polyester Overlay, Joint Seal Repair and Spall Repair \u2013 Lead compliance plan
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 25, 2026 |
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Corporate: Methacrylate, Polyester Overlay, Joint Seal Repair and Spall Repair \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 | Aug. 25, 2026 |
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Corporate: Methacrylate, Polyester Overlay, Joint Seal Repair and Spall Repair \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 | Aug. 25, 2026 |
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RIX Master Plan
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 11, 2026 |
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Constructability Review and Cost Estimating Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 02, 2026 |
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BHCIP R1 MHRC & SUD Facility
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 25, 2026 |
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Corporate: Methacrylate, Polyester Overlay, Joint Seal Repair and Spall Repair \u2013 Lead compliance plan
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Aug. 25, 2026 |
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Corporate: Methacrylate, Polyester Overlay, Joint Seal Repair and Spall Repair \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 | Aug. 25, 2026 |
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Corporate: Methacrylate, Polyester Overlay, Joint Seal Repair and Spall Repair \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 | Aug. 25, 2026 |
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Corporate: Buccaneer Lift Station Fixed Price Design-Build - SWPPP
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 16, 2026 |
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Corporate: Buccaneer Lift Station Fixed Price Design-Build - Survey
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 16, 2026 |
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