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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PCH Wastewater Project
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 23, 2026 |
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Professional Planning Consulting Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 27, 2026 |
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Airport Master Plan Preparation
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 27, 2026 |
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Corporate: IMPERIAL COUNTY AT VARIOUS LOCATIONS ROUTE - 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 | Apr. 09, 2026 |
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Corporate: IMPERIAL COUNTY AT VARIOUS LOCATIONS ROUTE - SWPPP
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 09, 2026 |
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Water Quality Testing Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 05, 2026 |
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Corporate: Perform Partial Depth Recycling and Place HMA \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 | Apr. 22, 2026 |
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Corporate: Perform PDR, replace AC surfacing, and place RHMA-G Overlay \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 | Apr. 21, 2026 |
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Civil Engineering Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 14, 2026 |
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Storage Tank Inspections and Training Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 30, 2026 |
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Corporate: Welbe Health - West Covina Senior Care PACE - Surveying
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 15, 2026 |
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Corporate: Welbe Health - West Covina Senior Care PACE - SWPPP
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 15, 2026 |
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Corporate: Widen 2 Lane Conventional Highway \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 | Apr. 07, 2026 |
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Inspector of Record Outdoor Learning Center GAE
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 03, 2026 |
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54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Prebids | Apr. 09, 2026 |
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Engineering Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 03, 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 | Apr. 23, 2026 |
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Multi-Disciplinary Engineering
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 17, 2026 |
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Construction Management and Inspection Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 10, 2026 |
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Public Works Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 24, 2026 |
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Construction Management, Construction Inspection and Materials Testing Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 22, 2026 |
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Deep Dewatering Wells (DDW) 1 to 6 Permanent Power Geotechnical Engineering
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 10, 2026 |
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Corporate: Clean & Paint Str Steel Br., Salvage Traveler, Fender and Pier Repair - Inspection Access
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 05, 2026 |
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Corporate: Clean & Paint Str Steel Br., Salvage Traveler, Fender and Pier Repair - Level 2 Critical Path Method Schedule
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 05, 2026 |
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Corporate: Rodeo Fiberized Slurry Seal, Overlays, and Curb Ramps - SWPPP
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 21, 2026 |
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Corporate: Manzanita Public Charter Modernization and New Construction - Commissioning
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 08, 2026 |
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Construction 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 | Apr. 10, 2026 |
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Design-Build Services for the LBT1 Electrification Infrastructure
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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Corporate: Manzanita Public Charter Modernization and New Construction - Survey
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 08, 2026 |
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54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Apr. 07, 2026 |
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Auto Mall:NEXT Master Plan
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 23, 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 | Apr. 23, 2026 |
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Taxiway A, B, and C Rehabilitation and Runway 7-25 Redesignation
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 23, 2026 |
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Professional Engineering and Plan Check Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 20, 2026 |
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ELECTRICAL ENGINEERING SERVICES
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 05, 2026 |
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Real Estate & Design Consulting Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 15, 2026 |
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Provide Professional Engineering Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 04, 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 | Apr. 10, 2026 |
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Corporate: Roadway Excavation, HMA (Type A), Minor Concrete and Lighting System \u2013 SWPPP
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 07, 2026 |
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Corporate: Roadway Excavation, HMA (Type A), Minor Concrete and Lighting System \u2013 Dust Control Plan
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 07, 2026 |
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Corporate: Roadway Excavation, HMA (Type A), Minor Concrete and Lighting System \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 | Apr. 07, 2026 |
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Corporate: Widen 2 Lane Conventional Highway \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 | Apr. 07, 2026 |
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Corporate: Widen 2 Lane Conventional Highway \u2013 Time-Related Overhead (Wday) Wday 320
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 07, 2026 |
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Corporate: ALTIMIRA MS SEISMIC IMPROVEMENTS - Survey Staking
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 16, 2026 |
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Corporate: CONSTRUCTION ON STATE HIGHWAY IN SAN BERNARDINO COUNTY IN AND NEAR NEEDLES - EROSION CONTROL (TYPE D)
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 15, 2026 |
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Corporate: CONSTRUCTION ON STATE HIGHWAY IN SAN BERNARDINO COUNTY IN AND NEAR NEEDLES - 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 | Apr. 15, 2026 |
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Corporate: CONSTRUCTION ON STATE HIGHWAY IN SAN BERNARDINO COUNTY IN AND NEAR NEEDLES - SWPPP\/WPCP
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 15, 2026 |
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Corporate: 2026 Pioneer Trail Waterline Project - SURVEYING
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 23, 2026 |
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Corporate: Yolo County North of Route 505\/5 Separation - ANALYTICAL TESTING
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 14, 2026 |
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Corporate: Yolo County North of Route 505\/5 Separation - GEOTECH ENGINEERS
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 14, 2026 |
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