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: Madera Outdoor Athletic Facilities Increment I & II - Survey
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 18, 2026 |
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Corporate: Madera Outdoor Athletic Facilities Increment I & II - SWPPP
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 18, 2026 |
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Corporate: City of Redlands Wastewater Treatment Plant Upgrades - Testing \/ Startup \/ Commissioning
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 12, 2026 |
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Corporate: Serrano HS Track & Field Renovation - Survey
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 02, 2026 |
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54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 18, 2026 |
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Corporate: Clairemont Drive Bridge Deck 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 | Dec. 01, 2026 |
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Corporate: Market - Special Insp. Consultant
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 20, 2026 |
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Corporate: City of Sunnyvale Cleanwater Admin Building & Perimeter Wall - Surveying
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 10, 2026 |
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Corporate: City of Sunnyvale Cleanwater Admin Building & Perimeter Wall - SWPPP
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 10, 2026 |
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Design, Construction, and Ongoing Operation & Maintenance of the New Jefferson ES
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 20, 2026 |
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HARBOR POLICE HEADQUARTERS FACILITY IMPROVEMENTS
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 09, 2026 |
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Civil Engineering Sevices
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 17, 2026 |
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Corporate: Laguna Creek Trail and Bruceville Road Sidewalk Improvements Project - SWPPP
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 17, 2026 |
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Corporate: Laguna Creek Trail and Bruceville Road Sidewalk Improvements Project - Survey
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 17, 2026 |
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Corporate: Clairemont Drive Bridge Deck Repair \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 | Dec. 01, 2026 |
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Corporate: Clairemont Drive Bridge Deck 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 | Dec. 01, 2026 |
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Corporate: COLLEGE PARK HIGH SCHOOL BOYS AND GIRLS LOCKER ROOM BUILDINGS - Survey
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 05, 2026 |
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Corporate: North Hollywood Central Remediation Well Collector Line - Land surveying\/site photography
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 18, 2026 |
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Corporate: North Hollywood Central Remediation Well Collector Line - quality control
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 18, 2026 |
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Fresno Building Inspection
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 06, 2026 |
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Health Sciences Fire Sprinkler Retrofit
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 16, 2026 |
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Criteria Architect Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 03, 2026 |
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Rosa Parks Elementary School - Destructive Testing
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 06, 2026 |
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Corporate: Sinsheimer Elementary Phase 2 Modernization Project - Surveying and Field Engineering
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 03, 2026 |
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Professional Design Engineering Services for Safe Streets and Roads
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 18, 2026 |
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Corporate: Veva Blunt ES Modular Building - Survey
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 17, 2026 |
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Stationary Engineering Services
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: WONDERFUL COMPANY COMMUNITY SPORTS COMPLEX PARK PROJECT PHASE 1 ROADS - Surveying
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 02, 2026 |
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Corporate: Cold Plane AC Pavement, RHMA-G, Replace AC Surf, and Minor Concrete \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 | Dec. 03, 2026 |
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Corporate: Cold Plane AC Pavement, RHMA-G, Replace AC Surf, and Minor Concrete \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 | Dec. 03, 2026 |
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Corporate: Thermoplastic traffic stripe, partially grouted RSP, Roadway Excavation, & HMA - 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 | Dec. 08, 2026 |
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Corporate: Coyote Percolation Dam Phase 2 Project - Surveyor Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 18, 2026 |
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Corporate: Cold Plane AC Pavement, RHMA-G, Replace AC Surf, and Minor Concrete \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 | Dec. 03, 2026 |
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Professional and Technical Engineering Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 20, 2026 |
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GEOTECHINICAL SERVICES, ALTAMIRA DRIVE HILLSIDE EVALUATION
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 04, 2026 |
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Corporate: Alvarado Trunk Sewer Ph IV and Water Main Relocations Bid Package A - QC Testing
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 03, 2026 |
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Corporate: Alvarado Trunk Sewer Ph IV and Water Main Relocations Bid Package A - Survey
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 03, 2026 |
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Corporate: Coyote Percolation Dam Phase 2 Project - Survey
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 18, 2026 |
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Corporate: RHMA, Modifying Signal and Lighting Systems and Minor Concrete \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 | Dec. 02, 2026 |
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Corporate: RHMA, HMA, and Concrete Barrier \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 | Nov. 03, 2026 |
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Corporate: RHMA, HMA, and Concrete Barrier \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 | Nov. 03, 2026 |
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Corporate: RHMA, HMA, and Concrete Barrier \u2013 Time-related overhead (ls)
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 03, 2026 |
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Corporate: Helen F. Chavez Elementary School Relocatable Buildings Project - Surveying
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 19, 2026 |
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Campus Consulting Landscape Architecture Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 01, 2026 |
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Call for Artists
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 03, 2026 |
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BART Transit Column Mural Project
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 30, 2026 |
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Call for CHAMP Gallery Community Arts Partners
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 19, 2026 |
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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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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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54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Nov. 03, 2026 |
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