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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 5401–5450 of 6034 bids that are currently: Active.

Denotes bidding opportunities that have been amended

Washington D.C. - US Due Date
NRL Space Science Division R&D Support Services
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 25, 2026
USDA Forest Service Land Management Integrated Resources (LMIR) BPA Call RFQ EIS Support for Land Management Plans Revisions
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Sep. 01, 2026
Amendment 0001\/RFQ CAFC26-0009. Bridge to the Past Project - Digital Exhibit Design and Audio-Visual Integration Services
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 24, 2026
Amendment 0001\/RFQ CAFC26-0008 Tactile Project. Exhibition Design, Fabrication, and Installation Services for Interactive Educational Exhibits
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 24, 2026
Post-Accident Toxicological Testing Oversight
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 28, 2026
TECHNOLOGY TRANSFER OPPORTUNITY: Method for Transferring a Spacecraft from Geosynchronous Transfer Orbit to Lunar Orbit (TOP2-272)
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 11, 2027
Missile Defense Agency (MDA) Small Business Conference (Sep 16-17) & Next-generation Air & Missile Defense Industry Day (Sep 18)
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 31, 2026
Railroad Employee Fatigue and Scheduling Pilot Program Study
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 26, 2026
2026 Request for White Papers: NASA SBIR Phase II Sequential Awards
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Sep. 11, 2026
Area of Interest: OSW Cost Assessment and Program Evaluation (CAPE) Business Process Modernization
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 25, 2026
Contract Attorneys
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Sep. 14, 2026
Notice of Intent to negotiate sole source contract to HECTOR J RUIZ TORRES
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 28, 2026
Cryomagnet Repair Services
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 23, 2026
FHWA Office of Policy and Governmental Affairs, Evidence-Based Transportation Studies, Legislative Affairs, International Engagement, and Policy Communications
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 24, 2026
Federal Protective Service (FPS) Network Scanning Tool
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 28, 2026
ODA Power Suite Analytics Tools Support
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 21, 2026
Habitable Worlds Observatory Instrument Concept Assessments in NASA Research Announcement (NRA): RESEARCH OPPORTUNITIES IN SPACE AND EARTH SCIENCES (ROSES) 2025
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Oct. 14, 2026
Request for Information: Enterprise Training Infrastructure Project Scope Study and Feasibility Analysis
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Oct. 13, 2026
Secure Packaged Microelectronic Components, Printed Circuit Boards, and Supporting Technologies
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Sep. 16, 2026
Sales and Marketing
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Sep. 04, 2026
Advanced Research Projects Agency for Health (ARPA-H) Small Business Innovation Research (SBIR)\/Small Business Technology Transfer (STTR) Program
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Sep. 11, 2026
Consulting Service
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Sep. 14, 2026
Doing Business With the United States Coast Guard Webinar
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 26, 2026
Amendment 0002\/RFQ CAFC26-0008 Tactile Project. Exhibition Design, Fabrication, and Installation Services for Interactive Educational Exhibits
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 26, 2026
Amendment 0002\/RFQ CAFC26-0009. Bridge to the Past Project - Digital Exhibit Design and Audio-Visual Integration Services
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 26, 2026
National Security Fund Finance (\u201CNSFF\u201D) Program
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Nov. 01, 2026
DOW Maintenance Symposium Industry Day: Regional Sustainment Framework Expansion
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Nov. 13, 2026
Notice of Intent to Sole Source - GMU
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Sep. 02, 2026
Event Data Recorders
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Sep. 09, 2026
2026 Request for White Papers: NASA SBIR\/STTR Phase II Sequential Awards
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Sep. 11, 2026
WEBINAR (MONT): Elements of an Adequate Proposal
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 26, 2026
Airport Use and Lease Agreement Legal Services
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Sep. 02, 2026
CISA Strategic Cyber Tools Buying
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Sep. 01, 2026
Drug and Alcohol Compliance Audit Support
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Sep. 08, 2026
Sales and Marketing
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Sep. 04, 2026
Space Planning and Design
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Sep. 04, 2026
Statistical Research Support Services
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 26, 2026
Sources Sought-Manual for Assessing Safety Hardware (MASH) testing- Steel-Backed Timber Roadway Barrier
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 31, 2026
Office of Hazardous Materials Safety Research Initiative \u2013 FY2026 BROAD AGENCY ANNOUNCEMENT (BAA)
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Dec. 22, 2026
USAC RFP: Lifeline Program\u2019s National Verifier (NV) O&M Support
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Sep. 07, 2026
Notice of Intent to Sole Source - Defensive Counterintelligence & Insider Threat Program Support Services - PHK ENTERPRISES, LLC
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 31, 2026
 
 
West Virginia - US Due Date
Open-End CWD Testing for White-tailed Deer
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Sep. 03, 2026
Campus Master Plan
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 24, 2026
Project All-Star
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 24, 2026
Construction Materials Testing and Special Inspections
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 21, 2026
Construction - Boilers - Annual Inspections PM & CM
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Sep. 08, 2026
Fire Alarm Inspection, Preventative & Corrective Maintenance
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 27, 2026
Geotechnical Services assigned to the Great Lakes and Ohio River Division
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 21, 2026
ENGINEERING SERVICES
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Sep. 08, 2026
Architectural\/Engineering Services
54 - Professional, Scientific, and Technical Services
(to see the full NAICS category code login  or  upgrade)
Aug. 27, 2026

Showing 5401–5450 of 6034 bids that are currently: Active.