Industries in the Professional, Scientific, and Technical Services subsector group establishments engaged in processes where human capital is the major input. These establishments make available the knowledge and skills of their employees, often on an assignment basis, where an individual or team is responsible for the delivery of services to the client. The individual industries of this subsector are defined on the basis of the particular expertise and training of the services provider. The distinguishing feature of the Professional, Scientific, and Technical Services subsector is the fact that most of the industries grouped in it have production processes that are almost wholly dependent on worker skills. In most of these industries, equipment and materials are not of major importance, unlike health care, for example, where "high tech" machines and materials are important collaborating inputs to labor skills in the production of health care. Thus, the establishments classified in this subsector sell expertise. Much of the expertise requires degrees, though not in every case.
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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. 07, 2026 |
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Study & Designation of Downtown Special Service Area
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 31, 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 | Apr. 22, 2026 |
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Water And Sewer Rate Study
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 06, 2026 |
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North Park - Stage Design
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 27, 2026 |
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Corporate: Metra_Reconstruct Metra-Union Pacific N Line Bridges - Surveying
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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Plan and Begin - Upgrade Security Phase 2
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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COMPREHENSIVE ZONING CODE & DESIGN GUIDELINES UPDATE
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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Engineering Services for Fire Alarm Systems Replacement
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 31, 2026 |
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Corporate: Tri-State Tollway (I-294) Roadway Reconstruction - CQP
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 27, 2026 |
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Corporate: Tri-State Tollway (I-294) Roadway Reconstruction - Surveying
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 27, 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. 10, 2026 |
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DESIGN DEFICIENCY CORRECTIONS FOR WOOD RIVER
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 28, 2026 |
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Engineering Services - Stormwater Lift Station Rehabilitation - Lake A
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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Kinzie ES ACM Flooring Abatement 2nd Floor Various Areas Design
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 31, 2026 |
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Smyth ES ACM Flooring Abatement Various Areas Design
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 31, 2026 |
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Comprehensive Water Distribution System Analysis
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 02, 2026 |
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Carbon Storage Capacity
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: Lockport_Division Street WWTP Phase 2 - Materials Testing
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: Lockport_Division Street WWTP Phase 2 - 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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Transit Authority Consultant
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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Airport Maintenance for O'Hare and Midway International Airports
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | May. 06, 2026 |
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INSPECTION AND TESTING SERVICES FOR INFRASTRUCTURE
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 27, 2026 |
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Corporate: Milan_WWTF Modifications - Materials Testing
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: Milan_WWTF Modifications - 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: Battery E Activated Sludge Facility - Surveying
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: Battery E Activated Sludge Facility - Quality Control
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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Supplemental 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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High School Bike Path - Volkening Lake to High School, Phase III 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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Phase III Engineering
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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Downtown Parking Study
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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ADA-COMPLIANT 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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INDEPENDENT ANALYSIS OF PUBLIC SERVICES AND A FEASIBILTY STUDY
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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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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Banking Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Mar. 31, 2026 |
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Auditing Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 06, 2026 |
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Tenant File Audit
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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54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Mar. 31, 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 | Mar. 31, 2026 |
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Digital Advertising Placement Process
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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54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Prebids | Aug. 04, 2030 |
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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 | Aug. 04, 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 | Apr. 30, 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 | Mar. 31, 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 | Apr. 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 | State/Local Bids | Apr. 29, 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 | Apr. 10, 2026 |
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Environmental Information Management System
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 13, 2026 |
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Corporate: Renovation and Addition of the Washburn Branch Library - Technology
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Apr. 01, 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 | Apr. 11, 2026 |
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