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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Corporate: Construct Bridges, RW, JPCP, HMA Pavement, Drainage, and Elect 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 | Jun. 25, 2026 |
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Corporate: Construct Bridges, RW, JPCP, HMA Pavement, Drainage, and Elect Systems \u2013 Prestressing
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 25, 2026 |
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Corporate: Construct Bridges, RW, JPCP, HMA Pavement, Drainage, and Elect 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 | Jun. 25, 2026 |
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A&E On-Call Roadway Construction Claims Support
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 22, 2026 |
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Structure Construction Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 22, 2026 |
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Corporate: HARBOR BOULEVARD ROADWAY AND 22ND STREET PARKING LOT IMPROVEMENTS - SWPPP
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 11, 2026 |
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Corporate: HARBOR BOULEVARD ROADWAY AND 22ND STREET PARKING LOT IMPROVEMENTS - SURVEY\/SURVEY MONUMENTS
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 11, 2026 |
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Corporate: HARBOR BOULEVARD ROADWAY AND 22ND STREET PARKING LOT IMPROVEMENTS - QUALITY CONTROL
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 11, 2026 |
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Corporate: STEAM DISTRIBUTION SYSTEM RENOVATION - CWI Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 10, 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 | Sep. 16, 2026 |
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Professional Civil Engineering
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 17, 2026 |
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Engineering Plancheck Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 19, 2026 |
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Corporate: Paradise Canyon Elementary School Modular Building Installation Phase 2 - Survey
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 09, 2026 |
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Corporate: Paradise Canyon Elementary School Modular Building Installation Phase 2 - SWPPP
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 09, 2026 |
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Corporate: Santa Fe Trackbed to Park Conversion New Community Gardens, Dog Park and Playground - Surveying
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 12, 2026 |
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CORPORATION YARD MASTER PLAN
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 25, 2026 |
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Geotechnical and Special Inspection Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 18, 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 | Jun. 22, 2026 |
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CITYWIDE PAVEMENT CONDITION ASSESSMENT
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 17, 2026 |
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Corporate: CEDAR STREET REHABILITATION - NEW MANOLE AND SURVEY MONUMENT
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 11, 2026 |
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Bridge Preventive Maintenance Program Repairs
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 25, 2026 |
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On-Call Utilities Engineering Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 25, 2026 |
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Provide Final Design Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 26, 2026 |
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Specific Plan Update and Objective Design Standards
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 22, 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 | Jun. 10, 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 | Jun. 11, 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 | Jun. 09, 2026 |
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Corporate: SAN PEDRO WATERFRONT - HARBOR BOULEVARD ROADWAY AND 22ND STREET PARKING LOT IMPROVEMENTS - Soil\/water test and monitor
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 11, 2026 |
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Corporate: SAN PEDRO WATERFRONT - HARBOR BOULEVARD ROADWAY AND 22ND STREET PARKING LOT IMPROVEMENTS - SWPPP\/erosion control subcontractor
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 11, 2026 |
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Corporate: SAN PEDRO WATERFRONT - HARBOR BOULEVARD ROADWAY AND 22ND STREET PARKING LOT IMPROVEMENTS - QA\/QC subcontractor
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 11, 2026 |
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Corporate: SAN PEDRO WATERFRONT - HARBOR BOULEVARD ROADWAY AND 22ND STREET PARKING LOT IMPROVEMENTS - Survey subcontractor
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 11, 2026 |
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Corporate: SAN PEDRO WATERFRONT - HARBOR BOULEVARD ROADWAY AND 22ND STREET PARKING LOT IMPROVEMENTS - Noise & vibration monitoring
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 11, 2026 |
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Corporate: Wyda Way Sidewalk Improvements - Survey
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 11, 2026 |
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Corporate: Wyda Way Sidewalk Improvements - SWPPP\/Erosion Control
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 11, 2026 |
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Design of Golf Course Drive and US 101 South Intersection Improvements
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 26, 2026 |
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Architectural Design Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 09, 2026 |
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Corporate: W. Oakland BART Sanitary Sewer & Offsite Improvements Projects - SURVEYING
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 12, 2026 |
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Corporate: Pioneer Trail Waterline Project - Survey
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 09, 2026 |
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PFAS Treatment Systems Design
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 18, 2026 |
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Building Engineering Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 10, 2026 |
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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 | Jun. 23, 2026 |
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Architectural 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 | Jul. 07, 2026 |
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Professional Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 23, 2026 |
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Corporate: Santa Fe Trackbed to Park Conversion New Community Gardens, Dog Park and Playground - Surveying
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 12, 2026 |
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Corporate: Lopes Road Emergency Storm Damage Repair Project ER-15J9(223) FEMA DR4699 Disaster Recovery\/FHWA CA23-3 - SWPPP
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 18, 2026 |
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Corporate: Cedar St. Rehab: Occidental St. to Edinger Ave - Survey
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 11, 2026 |
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Corporate: Cedar St. Rehab: Occidental St. to Edinger Ave - Survey\/Historical Monument
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 11, 2026 |
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Corporate: Cedar St. Rehab: Occidental St. to Edinger Ave - Land Surveyor
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 11, 2026 |
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Corporate: Eastside Elementary School Mild\/Mod Modular Sitework - Civil
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 09, 2026 |
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Architectural and Engineering Retainer Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 30, 2026 |
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