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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 4501–4550 of 5686 bids that are currently: Active.

Denotes bidding opportunities that have been amended

Virginia - US Due Date
Fire Protection Systems Testing, Inspection and Maintenance Services
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Jul. 06, 2026
Professional Engineering and Project Management Services
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Jul. 21, 2026
Engineering Services for Physical Security Programs (PSP) and Defensive Equipment and Armored Vehicles (DEAV)
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Jun. 22, 2026
Replace Physical Access Control System - Design Design
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Jul. 06, 2026
Megaproject Program Support Services
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Jun. 29, 2026
Corporate: Bus Shelter Design Project - Surveying
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Jun. 27, 2026
Corporate: Roadway Improvements - Surveying
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Jun. 26, 2026
Request for Proposal\/Synopsis - Commercial Utility Program (CUP) - W912DY26RA015
54 - Professional, Scientific, and Technical Services
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Jul. 06, 2026
Incinerator Inspections, Preventive Maintenance and Repair Services
54 - Professional, Scientific, and Technical Services
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Jun. 23, 2026
Hoist Inspections, Preventive Maintenance and Repair Services
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Jun. 23, 2026
Replace Physical Access Control System - Design Design
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Jul. 06, 2026
N0017827R3105 AI_INTELLIGENT AUTOMATION SUPPORT SERVICES
54 - Professional, Scientific, and Technical Services
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Jul. 09, 2026
A&E SERVICES RFP - CAMPBELL COUNTY ANIMAL SHELTER
54 - Professional, Scientific, and Technical Services
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Jul. 07, 2026
Safety Inspections of Highway Structures and Bridges
54 - Professional, Scientific, and Technical Services
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Jul. 01, 2026
Engineering Services Consultants
54 - Professional, Scientific, and Technical Services
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Jul. 08, 2026
OMAO Contract Mariner Support Services
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Jun. 24, 2026
N62470-25-R-4011 COMPREHENSIVE LONG-TERM ENVIRONMENTAL ACTION NAVY (CLEAN) IN NAVFAC ATLANTIC?S AREA OF RESPONSIBILITY (AOR), PRIMARILY IN THE NAVFAC MID-ATLANTIC NORTHEAST AOR, NAVFAC SOUTHEAST AOR, AND BASE REALIGNMENT AND CLOSURE (BRAC) EAST AOR
54 - Professional, Scientific, and Technical Services
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Jul. 10, 2026
Non-recurring Engineering Support, Development of Trade Studies
54 - Professional, Scientific, and Technical Services
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Jun. 23, 2026
Command and Control, Intelligence, Surveillance, and Reconnaissance (C2ISR) Staff Support
54 - Professional, Scientific, and Technical Services
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Jul. 13, 2026
G&G DATA REPROCESSING IDIQ
54 - Professional, Scientific, and Technical Services
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Jul. 10, 2026
Professional Services for Roof Design and Construction Administration
54 - Professional, Scientific, and Technical Services
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Jul. 08, 2026
Presolicitation | F-15 Maintenance Testability Analysis Program
54 - Professional, Scientific, and Technical Services
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Jun. 26, 2026
BOEM Study-Sand, sediments and critical minerals
54 - Professional, Scientific, and Technical Services
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Jul. 13, 2026
Engineering Services for Physical Security Programs (PSP) and Defensive Equipment and Armored Vehicles (DEAV)
54 - Professional, Scientific, and Technical Services
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Jun. 22, 2026
Engineering Services for Physical Security Programs (PSP) and Defensive Equipment and Armored Vehicles (DEAV)
54 - Professional, Scientific, and Technical Services
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Jun. 22, 2026
Forensic Audit
54 - Professional, Scientific, and Technical Services
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Jul. 30, 2026
Command and Control, Intelligence, Surveillance, and Reconnaissance (C2ISR) Staff Support
54 - Professional, Scientific, and Technical Services
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Jun. 30, 2026
Architectural Services-Boyce Elementary School
54 - Professional, Scientific, and Technical Services
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Jul. 21, 2026
Request for Information - Analytical Services
54 - Professional, Scientific, and Technical Services
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Jun. 30, 2026
Combat Coder Site Support
54 - Professional, Scientific, and Technical Services
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Jul. 16, 2026
Joint Base Langley- Eustis (JBLE) Architect -Engineer (A-E) Services IDIQ Contract
54 - Professional, Scientific, and Technical Services
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Jul. 13, 2026
Professional Services
54 - Professional, Scientific, and Technical Services
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Jul. 15, 2026
Corporate: Tysons WCS Modifications - 3rd Party QC Testing
54 - Professional, Scientific, and Technical Services
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Jul. 23, 2026
Corporate: Tysons WCS Modifications - Surveying Services
54 - Professional, Scientific, and Technical Services
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Jul. 23, 2026
Architect\/Engineering Professional Services
54 - Professional, Scientific, and Technical Services
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Jul. 15, 2026
R-Board Monitoring and Engineering Services
54 - Professional, Scientific, and Technical Services
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Aug. 21, 2026
Multidisciplinary Professional Architectural\/Engineering Services
54 - Professional, Scientific, and Technical Services
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Jul. 17, 2026
Professional Engineering Services for Route 99 and Route 789 Bridge Replacement Projects
54 - Professional, Scientific, and Technical Services
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Jul. 10, 2026
AE Services for New Baseball Stadium
54 - Professional, Scientific, and Technical Services
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Jul. 17, 2026
503-26-109 Remediate Reserve Center UST AE Design Solicitation
54 - Professional, Scientific, and Technical Services
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Jul. 17, 2026
FGEN Support Services
54 - Professional, Scientific, and Technical Services
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Jun. 29, 2026
Structural Engineering Services
54 - Professional, Scientific, and Technical Services
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Jul. 21, 2026
OMAO Contract Mariner Support Services
54 - Professional, Scientific, and Technical Services
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Jun. 24, 2026
Corporate: Bedford Co. Sheriff's Office Renovation and Addition - GEOTECHNICAL ENGINEERING, INSPECTION AND TESTING
54 - Professional, Scientific, and Technical Services
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Jun. 22, 2026
Ambulance Billing Services
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Oct. 28, 2042
Financial Consulting Services
54 - Professional, Scientific, and Technical Services
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Jun. 22, 2026
Pre-Audit and Accounting Services
54 - Professional, Scientific, and Technical Services
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Jun. 30, 2026
Workers' Compensation Services
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Jul. 13, 2026
NATO Business Opportunity: Financial Accountant \/ IPSAS SME
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Jun. 26, 2026
Claims Adjusting Services
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Jul. 07, 2026

Showing 4501–4550 of 5686 bids that are currently: Active.