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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 3751–3800 of 5669 bids that are currently: Active.
Denotes bidding opportunities that have been amended
| Pennsylvania - US | Agency | Bid Type | Due Date | As PDF |
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Superfund Site Monitoring
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 22, 2026 |
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Safe Routes to School Assessment and Planning
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 29, 2026 |
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Unfired Pressure Vessel Inspections
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Sep. 16, 2026 |
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Design activities - Concrete ADA Ramps
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 17, 2026 |
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Design activities - Concrete ADA Ramps
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 17, 2026 |
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PROFESSIONAL CONSULTING SERVICES - STATE ROUTE 150 PEDESTRIAN SAFETY IMPROVEMENT PROJECT
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 25, 2026 |
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CMCI Services for Tioga Marine Terminal
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 29, 2026 |
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Power Quality and EMI Testing USA 50 centrifugal purifier
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 Design Services Selection Pollock Commons Study
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 28, 2026 |
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Campus Facilities Master Plan
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 01, 2026 |
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LCS MRG RENK Engineering Support
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Prebids | Sep. 17, 2026 |
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Unfired Pressure Vessel Inspections
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Sep. 16, 2026 |
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Bridge 56 Construction Inspection
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 24, 2026 |
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ADA Upgrades to Dormont Park Project
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 21, 2026 |
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Municipal Building ADA Ramps and Sidewalk Project
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 21, 2026 |
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Mt. Lebanon ADA Ramps Project
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 21, 2026 |
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Water Testing Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Sep. 16, 2026 |
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Atherton & North Hills \u2013 Traffic Signal Update
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 05, 2026 |
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Rocket Motor Inspection System (RMIS) CABINET X RAY MACHINE SERVICE
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Sep. 18, 2026 |
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Statewide Surveyor Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 14, 2026 |
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Fort Indiantown Gap \u2013 Institutional Post-Initial Military Training Unaccompanied Housing
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 14, 2026 |
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National Network Facilities - Owner\u2019s Representative Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 01, 2026 |
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Ebensburg Center \u2013 Water Upgrades Study
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 14, 2026 |
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Cobbs Creek Trail Extension: Forge to Refuge Trail Advanced Feasibility Study
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 16, 2026 |
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Line Cleaning & Video Inspection
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 01, 2026 |
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Notice of Intent to Sole Source - Modification to Contract W912BU22D0016
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Prebids | Sep. 26, 2026 |
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Hood Inspection and Certification for Laboratory Service
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Prebids | Sep. 21, 2026 |
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Sheetz Center for Entrepreneurial Excellence Expansion
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 29, 2026 |
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Radiographic Testing (RT) of a large aluminum weldment
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Sep. 29, 2026 |
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Butler GP-9 NO x Testing
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Sep. 18, 2026 |
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LPD 17 Electrical Plant Control Midlife Upgrade
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Sep. 21, 2026 |
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Inspections Support and MPT Services For NBIS Inspections of Various Overhead Sign and Wall Structures
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 02, 2026 |
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Water Testing Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Sep. 18, 2026 |
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Unfired Pressure Vessel Inspections
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Bids | Sep. 16, 2026 |
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On-Call Right-of-Way Negotiator Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 01, 2026 |
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Tattoo Artist Apprenticeship Program
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 05, 2026 |
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Professional Auditing Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 25, 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 | Sep. 25, 2026 |
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Annual Independent Audit Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 07, 2026 |
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Low-Income Tax Clinic NorthEast
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 16, 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 | Oct. 14, 2026 |
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Professional Audit Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 09, 2026 |
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Civic Branding Strategy Creation and Implementation
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 28, 2026 |
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District Public Engagement, Marketing and Media Partnerships
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 28, 2026 |
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MARKETING FEASIBILITY STUDY
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Oct. 07, 2026 |
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Energy Supply and Management Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 31, 2034 |
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Energy Supply and Management Services
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Dec. 31, 2034 |
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Energy Supply and Management 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, 2030 |
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Alternate System of Assessment
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | State/Local Bids | Sep. 16, 2026 |
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DA10 - Notice of Intent to Sole-Source - Subscription and Support for DSS, Inc. Iconic Data PCM HRO Inpatient Care
54 - Professional, Scientific, and Technical Services (to see the full NAICS category code login or upgrade) |
login to see | Federal Prebids | Jul. 30, 2027 |
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