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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 1751–1800 of 5678 bids that are currently: Active.
Denotes bidding opportunities that have been amended
| Illinois - US | Agency | Bid Type | Due Date | As PDF |
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Central House Dryer Vent
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jul. 24, 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 | Jul. 09, 2026 |
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Additional Consulting Engineer Firms to 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 | Jun. 22, 2026 |
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Centennial Park Aquatic Center & OP Fitness Center Parking Lot Expansion, Design
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 24, 2026 |
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COMPREHENSIVE PLAN
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jul. 06, 2026 |
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AIRPORT ENGINEERING CONSULTANT
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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Design of Zebra Mussel Control for the Water Plant Intake
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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Wells and Storage Study
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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DES PLAINES RIVER TRAIL, IRVING PARK-FULLERTON, SEG. 5 & 6, PH II ENG
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jul. 01, 2026 |
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Water And Sewer Rate Study And Integrated Infrastructure Master Plan
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jul. 02, 2026 |
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Comprehensive Neighborhood Traffic Safety Studies & Traffic Calming Manual
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jul. 16, 2026 |
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Hickory Creek and East Interceptor Multisensor Inspection
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jul. 02, 2026 |
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Arc flash Study and NFPA 70E Compliance Assessment for Fire Stations 4 & 5 Project
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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Housing Study
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jul. 01, 2026 |
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Parkway\/I-280 TIF District Extension and South RI Port District TIF
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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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. 24, 2026 |
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Architectural Consulting
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 24, 2026 |
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Corporate: UPNL Bridges and Retaining Walls - Surveying
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jul. 11, 2026 |
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Corporate: UPNL Bridges and Retaining Walls - Quality Control
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jul. 11, 2026 |
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Corporate: Watermain Improvements Project - Layout
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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Elevator Modernization Performance and Reliability Assessment
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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911 Tower Inspection
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 24, 2026 |
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OSHA\/ANSI Testing and Inspection Service for Aerial Lifts and Cranes
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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UPDATE THE COUNTY'S HAZARD MITIGATION PLAN
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jul. 21, 2026 |
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PROFESSIONAL PROJECT MANAGEMENT AND CONSTRUCTION OVERSIGHT
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jul. 09, 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. 08, 2026 |
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Environmental Laboratory Services IDIQ
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Jul. 14, 2026 |
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Dundee-Crown High School Additions & Renovations Project - Test & Balance
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jul. 09, 2026 |
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Design Engineering Services - Pulaski Road
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jul. 22, 2026 |
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Architectural Design Services for Civic Center Interior Renovations
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jul. 13, 2026 |
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Supplemental Assessment and Evaluation Tools for Related Service Providers
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jul. 15, 2026 |
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Construction Material Testing
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jul. 17, 2026 |
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Weatherization Services (Architectural & Mechanical) For Single Family Homese
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jul. 14, 2026 |
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Irving Park Road Pedestrian Bridge and Main Street Multi-Use Path 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 | Jul. 07, 2026 |
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Payroll and Timekeeping
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jul. 13, 2026 |
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IT and Audit Advisory 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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Benefit Banking
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 29, 2026 |
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Media Buying Campaign
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jul. 09, 2026 |
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Tourism Study and Market Assessment
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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Energy Efficiency
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jul. 27, 2026 |
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ENERGY CURTAILMENT SERVICES
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jul. 24, 2026 |
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CSO - USTRANSCOM Information Technology (IT) Enterprise Modernization (ITEM) Solutions
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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CSO - USTRANSCOM Information Technology (IT) Enterprise Modernization (ITEM) Solutions
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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AMC\/A6 Information Technology Needs Commercial Solutions Opening (CSO) - Amendment 01
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Feb. 26, 2031 |
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ENTERPRISE TECHNOLOGY ASSESSMENT AND MODERNIZATION PLANNING
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jun. 29, 2026 |
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Learning Management System
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Jul. 09, 2026 |
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AMC\/A6 Information Technology Needs Commercial Solutions Opening (CSO) - Amendment 02
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Feb. 26, 2031 |
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AMC\/A6 Information Technology Needs Commercial Solutions Opening (CSO) - Amendment 02
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Feb. 26, 2031 |
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AMC\/A6 Information Technology Needs Commercial Solutions Opening (CSO) - Amendment 03
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Feb. 26, 2031 |
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AMC\/A6 Information Technology Needs Commercial Solutions Opening (CSO) - Amendment 03
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Feb. 26, 2031 |
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