NAICS 541990 – All Other Professional, Scientific, and Technical Services

Browse 432+ active federal contract opportunities classified under NAICS 541990.

Recent Opportunities

• Sole Source: Defense Security Cooperation Agency (DSCA) Assessment, Monitoring, and Evaluation (AM&E) Database Management Support Services
  Agency: DEPT OF DEFENSE Posted: Apr 3, 2026 NAICS: 541990 Location: DC
• 94th CST Guam and CNMI Exercises FY2026, Guam Army National Guard
  Agency: DEPT OF DEFENSE Posted: Apr 3, 2026 Due: Apr 20, 2026 NAICS: 541990 Set-Aside: SBA
• 167th AW Fire Alarm Inspections
  Agency: DEPT OF DEFENSE Posted: Apr 3, 2026 Due: Apr 10, 2026 NAICS: 541990 Set-Aside: SBA Location: WV
• Sources Sought Notice- Precise Time and Astrometry Workflow Management
  Agency: DEPT OF DEFENSE Posted: Apr 3, 2026 Due: Apr 6, 2026 NAICS: 541990 Set-Aside: NONE Location: DC
• Fort Benning Tank Inspection
  Agency: DEPT OF DEFENSE Posted: Apr 3, 2026 Due: Apr 13, 2026 NAICS: 541990 Set-Aside: SDVOSBC
• Z--HACE FY26 OBJECTS CONSERVATION SERVICE
  Agency: INTERIOR, DEPARTMENT OF THE Posted: Apr 3, 2026 NAICS: 541990
• 94th CST Guam and CNMI Exercises FY2026, Guam Army National Guard
  Agency: DEPT OF DEFENSE Posted: Apr 3, 2026 Due: Apr 20, 2026 NAICS: 541990 Set-Aside: SBA
• Plan Program Integrity Medicare Drug Integrity Contractor (PPI MEDIC)
  Agency: HEALTH AND HUMAN SERVICES, DEPARTMENT OF Posted: Apr 3, 2026 Due: Apr 17, 2026 NAICS: 541990 Set-Aside: WOSB Location: MD
• USACE Office of History (CEHO) Historical Support Services
  Agency: DEPT OF DEFENSE Posted: Apr 2, 2026 Due: Apr 21, 2026 NAICS: 541990 Set-Aside: SBA Location: VA
• Program Management Services
  Agency: DEPT OF DEFENSE Posted: Apr 2, 2026 Due: Apr 9, 2026 NAICS: 541990 Location: VA
• B--STUDENT CONTRACT - SAMANTHA GONSALVES
  Agency: INTERIOR, DEPARTMENT OF THE Posted: Apr 2, 2026 NAICS: 541990
• USACE Office of History (CEHO) Historical Support Services
  Agency: DEPT OF DEFENSE Posted: Apr 2, 2026 Due: Apr 21, 2026 NAICS: 541990 Set-Aside: SBA Location: VA
• Sole Source Award Notice for Task Order to Drodex Inc.
  Agency: HEALTH AND HUMAN SERVICES, DEPARTMENT OF Posted: Apr 2, 2026 NAICS: 541990 Set-Aside: SBA Location: DC
• USAC RFP: Financial Statement Audit and AUP Engagement Services
  Agency: FEDERAL COMMUNICATIONS COMMISSION Posted: Apr 2, 2026 Due: May 12, 2026 NAICS: 541990 Location: DC
• Multiple Award Schedule
  Agency: GENERAL SERVICES ADMINISTRATION Posted: Apr 2, 2026 Due: Apr 1, 2031 NAICS: 541990
• Multiple Award Schedule
  Agency: GENERAL SERVICES ADMINISTRATION Posted: Apr 2, 2026 Due: Apr 1, 2031 NAICS: 541990
• R425 National VHA Biomedical Engineering Technical Professional Support Services (BETPSS) IDIQ
  Agency: VETERANS AFFAIRS, DEPARTMENT OF Posted: Apr 2, 2026 Due: Apr 15, 2026 NAICS: 541990 Set-Aside: SDVOSBC Location: DC
• R--Hanford Technical Support
  Agency: ENERGY, DEPARTMENT OF Posted: Apr 2, 2026 NAICS: 541990
• ISOTOPE ANALYSES
  Agency: INTERIOR, DEPARTMENT OF THE Posted: Apr 2, 2026 Due: Apr 10, 2026 NAICS: 541990
• Golden Dome for America Commercial Solutions Opening
  Agency: DEPT OF DEFENSE Posted: Apr 2, 2026 Due: Apr 1, 2031 NAICS: 541990 Set-Aside: NONE
• Industry Day: Decisive Action Follow-On
  Agency: DEPT OF DEFENSE Posted: Apr 2, 2026 Due: Mar 24, 2026 NAICS: 541990 Location: VA
• Fort Benning Tank Inspection
  Agency: DEPT OF DEFENSE Posted: Apr 2, 2026 Due: Apr 13, 2026 NAICS: 541990 Set-Aside: SDVOSBC
• $75M SATOC IDIQ - Assistant Secretary of the Army for Installations, Energy, and Environment (ASA(IEE))
  Agency: DEPT OF DEFENSE Posted: Apr 2, 2026 Due: Apr 20, 2026 NAICS: 541990
• RFP - Joint Counter Intelligence Training Activity
  Agency: DEPT OF DEFENSE Posted: Apr 2, 2026 Due: Apr 25, 2026 NAICS: 541990 Set-Aside: SBA Location: DC
• 36C25026Q0276 Radiation Safety Officer
  Agency: VETERANS AFFAIRS, DEPARTMENT OF Posted: Apr 1, 2026 Due: Apr 24, 2026 NAICS: 541990 Set-Aside: SBA Location: MI

Data sourced from SAM.gov. Updated daily. Last updated: April 4, 2026.