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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 5494 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 JPCP, HMA, Drainage System, sign structures, and Electrical System \u2013 Pre-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 | Oct. 06, 2026 |
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Corporate: Construct JPCP, HMA, Drainage System, sign structures, and Electrical System \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 | Oct. 06, 2026 |
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Corporate: Construct JPCP, HMA, Drainage System, sign structures, and Electrical System \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. 06, 2026 |
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Corporate: Construct JPCP, HMA, Drainage System, sign structures, and Electrical System \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 | Oct. 06, 2026 |
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Corporate: Construct JPCP, HMA, Drainage System, sign structures, and Electrical System \u2013 Pre-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 | Oct. 06, 2026 |
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Corporate: Construct JPCP, HMA, Drainage System, sign structures, and Electrical System \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 | Oct. 06, 2026 |
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Corporate: Construct JPCP, HMA, Drainage System, Sign Structures, and Electrical System \u2013 Lead Compliance 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 | Oct. 06, 2026 |
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Corporate: Construct JPCP, HMA, Drainage System, Sign Structures, and Electrical System \u2013 Time-Related Overhead (Wday) Wday 220
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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Corporate: Wastewater System Expansion Project - SWPPP preparation
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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Corporate: Construct Bridge, Aux Lanes, Geo Reinf Emb, Rock Exc, Elect, Landscape \u2013 Qa\/Qc
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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Development Opportunity
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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Design-Assist Construction of the Dry Creek Wastewater Treatment Plant
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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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 | Oct. 30, 2026 |
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Corporate: Construct JPCP, HMA, Drainage System, Sign Structures, and Electrical System \u2013 Lead Compliance 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 | Oct. 06, 2026 |
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Corporate: Construct JPCP, HMA, Drainage System, Sign Structures, and Electrical System \u2013 Time-Related Overhead (Wday) Wday 220
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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Corporate: Construct Bridge, Aux Lanes, Geo Reinf Emb, Rock Exc, Elect, Landscape \u2013 Pre\/Post Construction Surveys
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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SAFE STREETS AND ROADS FOR ALL (SS4A) COMPREHENSIVE SAFETY ACTION PLAN
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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ARCHITECTURAL SERVICES FOR HISTORIC CIVIC CENTER
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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Corporate: Earthwork, Construct Solider Pile Walls and Place New Roadway Sections - 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 | Oct. 07, 2026 |
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Corporate: Earthwork, Construct Solider Pile Walls and Place New Roadway Sections - 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. 07, 2026 |
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Corporate: Earthwork, Construct Solider Pile Walls and Place New Roadway Sections - PRE-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 | Oct. 07, 2026 |
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Corporate: Earthwork, Construct Solider Pile Walls and Place New Roadway Sections - 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 | Oct. 07, 2026 |
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Corporate: Earthwork, Construct Solider Pile Walls and Place New Roadway Sections - 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. 07, 2026 |
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ENGINEERING SERVICES FOR WATER 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 | Oct. 09, 2026 |
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Site Design Analysis
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 14, 2026 |
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Corporate: Construct Bridges, RW, SW, Pavement, Drainage and Electrical Systems \u2013 Noise Monitoring
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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Corporate: Construct Bridges, RW, SW, Pavement, Drainage and Electrical Systems \u2013 Pre\/Post Construction Survey
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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Corporate: Construct Bridges, RW, SW, Pavement, Drainage and Electrical Systems \u2013 QC Testing
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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Corporate: Construct Bridges, RW, SW, Pavement, Drainage and Electrical Systems \u2013 Survey
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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Corporate: Construct Bridges, RW, SW, Pavement, Drainage and Electrical Systems \u2013 Vibration Monitoring
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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Site Design Analysis
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 14, 2026 |
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Corporate: LAUSD Palisades Charter Elementary School - SWPPP MONITORING
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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Corporate: LAUSD Palisades Charter Elementary School - SWPPP IMPLEMENTATION
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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Corporate: LAUSD Palisades Charter Elementary School - SURVEYING
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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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 | Oct. 23, 2026 |
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CA CONNECT CONTRACT OVERSIGHT MANAGEMENT
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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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 | Dec. 04, 2026 |
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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 | Dec. 04, 2026 |
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Corporate: Construct Bridges, RW, SW, Pavement, Drainage and Electrical Systems \u2013 SWPPP
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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Design Build of the Trommel Screen No. 2 Replacement
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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Corporate: Construct Bridges, RW, SW, Pavement, Drainage and Electrical Systems \u2013 WPCP
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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Corporate: Construct Bridges, RW, SW, Pavement, Drainage and Electrical Systems \u2013 Asbestos Compliance Plan
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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Corporate: Construct Bridges, RW, SW, Pavement, Drainage and Electrical Systems \u2013 Noise Monitoring
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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Corporate: Construct Bridges, RW, SW, Pavement, Drainage and Electrical Systems \u2013 Vibration Monitoring
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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Corporate: Construct Bridges, RW, SW, Pavement, Drainage and Electrical Systems \u2013 Building Survey & Monitoring
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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Plan Review Inspection Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 05, 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 | Oct. 01, 2026 |
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Design-Assist Construction of Pleasant Grove Wastewater Treatment Plant Electrical Power System
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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TOXICITY TESTING ANALYTICAL 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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Corporate: Gumtree and Knoll Park Pipeline Replacement Project - Pre\/Post Construction Survey
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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