All Other Professional, Scientific, and Technical Services government contracts (NAICS 541990)
Open federal, state and local contract notices classified under NAICS 541990.
Data as of Oct 24, 2026. Sources: SAM.gov and Grants.gov. Snapshot govcon-directory-20261024T104923Z-2151694.
This product uses the Grants.gov API but is not endorsed or certified by the U.S. Department of Health and Human Services. Counts and totals are computed by DSE from public SAM.gov and Grants.gov notices. Text from Grants.gov may be shortened or have contact details removed. The original notice on Grants.gov is the authoritative version.
As of Oct 24, 2026, 39 open notices list NAICS 541990 (All Other Professional, Scientific, and Technical Services). 22 notices close within 30 days and 28 were posted in the last 30 days. The agencies with the most open notices are Department of Defense (20), General Services Administration (6), Department of Health and Human Services (3).
Source: USAspending.gov, U.S. Department of Treasury, Bureau of the Fiscal Service, https://www.usaspending.gov. Accessed Oct 24, 2026. Award totals are computed by DSE from USAspending.gov award data.
Open notices, closing soonest first
- Combined Synopsis/Solicitation for Commercial Items Agile Professional Services (APS) Department of the ArmyClosing in 2 days
- Biometric Identity ServicesClosing in 2 days
- USAC RFP: Oracle Operations and Maintenance ServicesClosing in 2 days
- Naval Center for Combat and Operational Stress Control (NCCOSC) Support servicesClosing in 2 days
- Naval Center for Combat and Operational Stress Control (NCCOSC) Support Services.Closing in 2 days
- Industrial Control TechnicianClosing in 4 days
- Q519--Research Support Psychological Assessment for PTSD Clinical TrialClosing in 5 days
- Helicopter Services for IdahoClosing in 6 days
- Dose Reconstruction and Related Activities to Support NIOSH's Responsibilities under the Energy Employees Occupational Illness Compensation Act (EEOICPA)Closing in 6 days
- 711th HPW Mission Support Services MAC IDIQClosing in 6 days
- Maintenance Service for Portable Fire Extinguishers - BPAClosing in 6 days
- Generation and Delivery of Meteorological and Hydrological Forecasts for the Western Washington and Northwest Montana River BasinsClosing in 6 days
- Vandenberg SFB Tank InspectionClosing in 6 days
- Data & AI Mission Expert Services (DAMES) IDIQClosing in 9 days
- Water Resources Analytical and Professional Support Services - Multiple Award Task Order Contract (MATOC)Closing in 13 days
- U.S. Embassy Mexico - International Narcotics & Law Enforcement Affairs (INL Mexico) CONOCER Criminal Analyst Certification ServicesClosing in 13 days
- TRAINING INSTRUCTOR OPERATOR SERVICES SUPPORT IIClosing in 16 days
- Cleaning, Inspection, and Hazardous Waste Removal for Two 10,000-Gallon Oil/Water SeparatorsClosing in 19 days
- Request for Information: Outreach and Industry Partnerships (OIP) PortalClosing in 20 days
- Quality Assurance Services - Civil Works, Interagency and International Services (IIS), and Military Construction Projects in Puerto Rico and U.S. Virgin IslandsClosing in 20 days
- U.S. Army Geospatial Center (AGC) Three-Dimensional High Speed-High Altitude Mapping Operations and Technology Integration (3DH2-M OTI) Single Award Task Order Contract (SATOC) Indefinite Delivery / Indefinite Quantity (ID/IQ) and Initial Task OrderClosing in 20 days
- Fort Campbell, KY - API 653 External Tank InspectionClosing in 20 days
- Marine Resource Technical Services Throughout the Naval Facilities Engineering Systems Command (NAVFAC) Pacific Area of ResponsibilityClosing in 31 days
- ACC-APG Industry Update November 2026: Registration and request for topicsClosing in 53 days
- One Acquisition Solution for Integrated Services Plus (OASIS+) 8(a) Small Business Set-Aside Continuously Open SolicitationClosing in 79 days
- One Acquisition Solution for Integrated Services Plus (OASIS+) Historically Underutilized Business Zone (HUBZone) Small Business Set-Aside Continuously Open SolicitationClosing in 79 days
- One Acquisition Solution for Integrated Services Plus (OASIS+) Service-Disabled Veteran-Owned Small Business (SDVOSB) Set-Aside Continuously Open SolicitationClosing in 79 days
- One Acquisition Solution for Integrated Services Plus (OASIS+) Total Small Business Set-Aside Continuously OpenClosing in 79 days
- One Acquisition Solution for Integrated Services Plus (OASIS+) Unrestricted Continuously Open SolicitationClosing in 79 days
- One Acquisition Solution for Integrated Services Plus (OASIS+) Women-Owned Small Business (WOSB) Set-Aside Continuously Open SolicitationClosing in 79 days
- NASA Deep Space Autonomous Robotics Challenge: Call for Host Facility InterestClosing in 99 days
- FY2027 USPS OIG Broad Agency AnnouncementClosing in 342 days
- Golden Dome for America Commercial Solutions OpeningClosing in 1621 days
- USACE Tactical Readiness - Integrated Deployment of Enterprise Services (TRIDENT)Open, no deadline stated
- Strategic Contract Consolidation AnnouncementOpen, no deadline stated
- Notice of Intent to Sole Source – Guidehouse Digital LLC - Pediatric Hospitalist - Scientific Subject Matter ExpertOpen, no deadline stated
- D--Intent to AwardOpen, no deadline stated
- United States Core Data for Interoperability (USCDI) Plus QualityOpen, no deadline stated
- Acquisition Update for TRIDENT (Decisive Action Follow-on)Open, no deadline stated
Top agencies buying this NAICS
- Department of Defense 20 open
- General Services Administration 6 open
- Department of Health and Human Services 3 open
- Department of Homeland Security 2 open
- Federal Communications Commission 1 open
- Department of Veterans Affairs 1 open
- Department of Agriculture 1 open
- Department of the Treasury 1 open
- Department of State 1 open
- National Aeronautics and Space Administration 1 open, $25,455 obligated in the last 12 months
Related NAICS
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See DSE GovCon plans →Frequently asked questions
How many open government contracts are there for NAICS 541990?
As of Oct 24, 2026, 39 open notices list NAICS 541990 (All Other Professional, Scientific, and Technical Services) in the DSE directory.
Which agencies are buying under NAICS 541990?
Agencies with the most open notices: Department of Defense (20), General Services Administration (6), Department of Health and Human Services (3).
When does the next NAICS 541990 notice close?
The soonest deadline is Oct 26, 2026, for "Combined Synopsis/Solicitation for Commercial Items Agile Professional Services (APS) Department of the Army". 13 notices close within 7 days.
Are there set-asides under NAICS 541990?
18 of 39 open notices carry a set-aside. Most common: Total Small Business (9), 8(a) (3), Service-Disabled Veteran-Owned Small Business (2).
Where is the NAICS 541990 work performed?
Most common places of performance: DC (5), MD (3), FL (2).