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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 1651–1700 of 5065 bids that are currently: Active.

Denotes bidding opportunities that have been amended

Illinois - US Due Date
Space Utilization Evaluation & Reconfiguration Plan
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Jun. 10, 2026
Wetland Mitigation Credits- Louisville Corps
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Jun. 02, 2026
Surveyors
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Jun. 01, 2026
CONSTRUCTION OBSERVATION SERVICES
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
May. 29, 2026
Nike Sports Complex Synthetic Field Conversion
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Jun. 02, 2026
WATER SERVICE INVESTIGATION
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Jun. 02, 2026
Construction Testing Services
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
May. 26, 2026
Design Engineering Services
54 - Professional, Scientific, and Technical Services
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Jun. 17, 2026
STRATEGIC PLAN UPDATE
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Jun. 12, 2026
Brewington Oaks Redevelopment \u2013 Development Partner
54 - Professional, Scientific, and Technical Services
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Aug. 06, 2026
Woods Creek Lake Dredging - Engineering
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Jun. 05, 2026
Stateville\/NRC - Water Testing Services
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Jun. 09, 2026
Corporate: WATERLINK METER STATIONS & CHEMICAL FEED BUILDING - Quality Control\/Testing
54 - Professional, Scientific, and Technical Services
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Jun. 05, 2026
Dog Beach ADA Access Design\/Build
54 - Professional, Scientific, and Technical Services
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Jun. 23, 2026
Construction Oversight Services for Cedar Street CSO Underground Storage Tank
54 - Professional, Scientific, and Technical Services
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Jul. 02, 2026
Landscape Architecture and Design Services
54 - Professional, Scientific, and Technical Services
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Jun. 05, 2026
020-80B33 Design Overlay, ADA Improvements
54 - Professional, Scientific, and Technical Services
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Jun. 12, 2026
Payroll and Timekeeping
54 - Professional, Scientific, and Technical Services
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Jun. 05, 2026
Investment Consulting Services
54 - Professional, Scientific, and Technical Services
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Jun. 04, 2026
Audit
54 - Professional, Scientific, and Technical Services
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May. 29, 2026
Communications and Advertising Services for Medicaid Outreach
54 - Professional, Scientific, and Technical Services
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Jun. 11, 2026
Fundraising Campaign Consulting Services
54 - Professional, Scientific, and Technical Services
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May. 27, 2026
Marketing Automation Platform
54 - Professional, Scientific, and Technical Services
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Jun. 11, 2026
On-Call Sustainability and Energy Management Services at O\u2019Hare\/Midway
54 - Professional, Scientific, and Technical Services
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Jun. 17, 2026
CSO - USTRANSCOM Information Technology (IT) Enterprise Modernization (ITEM) Solutions
54 - Professional, Scientific, and Technical Services
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Aug. 04, 2030
CSO - USTRANSCOM Information Technology (IT) Enterprise Modernization (ITEM) Solutions
54 - Professional, Scientific, and Technical Services
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Aug. 04, 2030
AMC\/A6 Information Technology Needs Commercial Solutions Opening (CSO) - Amendment 01
54 - Professional, Scientific, and Technical Services
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Feb. 26, 2031
Learning Management System
54 - Professional, Scientific, and Technical Services
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Jun. 04, 2026
AMC\/A6 Information Technology Needs Commercial Solutions Opening (CSO) - Amendment 02
54 - Professional, Scientific, and Technical Services
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Feb. 26, 2031
Hyperconverged Infrastructure System
54 - Professional, Scientific, and Technical Services
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May. 26, 2026
AMC\/A6 Information Technology Needs Commercial Solutions Opening (CSO) - Amendment 02
54 - Professional, Scientific, and Technical Services
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Feb. 26, 2031
AMC\/A6 Information Technology Needs Commercial Solutions Opening (CSO) - Amendment 03
54 - Professional, Scientific, and Technical Services
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Feb. 26, 2031
AMC\/A6 Information Technology Needs Commercial Solutions Opening (CSO) - Amendment 03
54 - Professional, Scientific, and Technical Services
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Feb. 26, 2031
Unified Parking Enforcement, Citation, Permit, and Mobility Management System
54 - Professional, Scientific, and Technical Services
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Jun. 12, 2026
USTRANSCOM IT Programs and Support Services Division \u2013 Industry Forum
54 - Professional, Scientific, and Technical Services
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Jun. 26, 2026
Integrated Community-Database and Referral System
54 - Professional, Scientific, and Technical Services
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Jul. 13, 2026
Corporate: North Water Treatment Plant in Morris - Scada System
54 - Professional, Scientific, and Technical Services
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Jun. 18, 2026
APRIVA Mobile Endpoint Security Architecture Virtual Private Network Follow-on Sole Source
54 - Professional, Scientific, and Technical Services
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May. 29, 2026
Vital Records System Maintenance
54 - Professional, Scientific, and Technical Services
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Aug. 16, 2026
Management of their new lunch program
54 - Professional, Scientific, and Technical Services
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Jun. 08, 2026
FIRE RECORDS MANAGEMENT
54 - Professional, Scientific, and Technical Services
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Jun. 04, 2026
Bookstore Management & Operation Services
54 - Professional, Scientific, and Technical Services
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Jun. 08, 2026
Condition Management Services
54 - Professional, Scientific, and Technical Services
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Jun. 19, 2026
DIGITAL ASSET MANAGEMENT PLATFORM
54 - Professional, Scientific, and Technical Services
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Jun. 01, 2026
Artificial Intelligence Integration Center (AI2C) - Transformative Artificial Intelligence Research and Applications Broad Agency Announcement (BAA)
54 - Professional, Scientific, and Technical Services
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Jul. 31, 2026
Artificial Intelligence Integration Center (AI2C) - Transformative Artificial Intelligence Research and Applications Broad Agency Announcement (BAA)
54 - Professional, Scientific, and Technical Services
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Jul. 31, 2026
Artificial Intelligence Integration Center (AI2C) - Transformative Artificial Intelligence Research and Applications Broad Agency Announcement (BAA)
54 - Professional, Scientific, and Technical Services
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Jul. 31, 2026
Airlift Efficiency Commercial Solutions Opening (CSO)
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Feb. 26, 2028
IWAP Services
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Jun. 01, 2026
RIA-JMTC Industry Day
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Jun. 01, 2026

Showing 1651–1700 of 5065 bids that are currently: Active.