UKNAICS 541990
All Other Professional, Scientific, and Technical Services contracts
Open federal opportunities classified under NAICS 541990.
48 opportunities open now
Combined Synopsis/SolicitationBICiv
Closes in 8 daysCorrespondence Management Support for IHS Executive Secretariat - CSS (ISBEE and ISS set-aside)
Health and Human Services, Department of
541990 · All Other Professional, Scientific, an… Maryland Posted Jun 05, 2026
PresolicitationSmall Business
Closes in 6 daysMRI Annotation for Computer Vision analyses
Health and Human Services, Department of
541990 · All Other Professional, Scientific, an… Maryland Posted Jun 05, 2026
Sources Sought
Closes in 6 daysNHLBI Clinical Data Management Support Services
Health and Human Services, Department of
541990 · All Other Professional, Scientific, an… Maryland Posted Jun 05, 2026
Special Notice8(a)
Closes in 29 daysReal Property Support Services III Solicitation
Dept of Defense
541990 · All Other Professional, Scientific, an… Alabama Posted Jun 05, 2026
Special Notice
Closes in 10 daysNotice of Intent to Sole Source - Roxtec
Commerce, Department of
541990 · All Other Professional, Scientific, an… Oregon Posted Jun 05, 2026
Combined Synopsis/SolicitationSmall Business
Closes in 10 daysNADP/NTN Monitoring station site PA18
Interior, Department of the
541990 · All Other Professional, Scientific, an… Posted Jun 05, 2026
Combined Synopsis/Solicitation8(a)
Closes in 15 daysAED Maintenance / CPR Classes Base + Options
Dept of Defense
541990 · All Other Professional, Scientific, an… Michigan Posted Jun 05, 2026
Sources SoughtNONE
Closes tomorrowSSCO NPOR MANET F-GCS Installation and Integration Services
Dept of Defense
541990 · All Other Professional, Scientific, an… New Jersey Posted Jun 05, 2026
Combined Synopsis/Solicitation
Closes Jun 03, 2031Multiple Award Schedule
General Services Administration
541990 · All Other Professional, Scientific, an… PA Posted Jun 04, 2026 $52B award
Combined Synopsis/SolicitationSmall Business
Closes in 3 daysH--FIRE SYSTEMS INSPECTION AND SERVICE
Interior, Department of the
541990 · All Other Professional, Scientific, an… Mississippi Posted Jun 04, 2026
SolicitationNONE
Closes in 8 daysFEDLINK Electronic Resources competition
Library of Congress
541990 · All Other Professional, Scientific, an… Posted Jun 04, 2026
Sources SoughtNONE
Closes in 9 daysRequest for Information - Construction and Facilities Engineering Records Management Program— Administrative and CAD Support Services
Energy, Department of
541990 · All Other Professional, Scientific, an… Posted Jun 04, 2026
Special Notice
Closes in 6 daysB--aerial survey and reporting
Interior, Department of the
541990 · All Other Professional, Scientific, an… Posted Jun 04, 2026
Combined Synopsis/SolicitationSDVOSB
Closes in 9 daysH312--Fire Extinguisher & Hood Inspection
Veterans Affairs, Department of
541990 · All Other Professional, Scientific, an… South Dakota Posted Jun 04, 2026
Combined Synopsis/Solicitation
Closes tomorrowNOI - Platelet Function Data Collection Integratio
Health and Human Services, Department of
541990 · All Other Professional, Scientific, an… Posted Jun 04, 2026
Sources SoughtNONE
Closes in 20 daysDAF Insider Threat Program for User Activity Monitoring (UAM)
Dept of Defense
541990 · All Other Professional, Scientific, an… Texas Posted Jun 03, 2026
Presolicitation
Closes in 9 daysIntent to Sole Source for Drought Planning Research Services
Commerce, Department of
541990 · All Other Professional, Scientific, an… Posted Jun 03, 2026
Combined Synopsis/SolicitationSmall Business
Closes tomorrowLoan File Review for Risk Oversight Support Services
General Services Administration
541990 · All Other Professional, Scientific, an… District of Columbia Posted Jun 03, 2026
Combined Synopsis/SolicitationBICiv
Closes in 8 daysCorrespondence Management Support for IHS Executive Secretariat - CSS (ISBEE and ISS set-aside)
Health and Human Services, Department of
541990 · All Other Professional, Scientific, an… Posted Jun 03, 2026
Presolicitation
Closes in 9 daysIntent to Sole Source for Atmospheric Chemistry Research Services
Commerce, Department of
541990 · All Other Professional, Scientific, an… Posted Jun 03, 2026
Combined Synopsis/SolicitationSmall Business
Closes in 27 daysEffects Radiation Digital Instrumentaion NPP
Nuclear Regulatory Commission
541990 · All Other Professional, Scientific, an… Posted Jun 03, 2026
Combined Synopsis/SolicitationNONE
Closes in 8 daysAS9100, AS9110 & ISO 45001 audits
Dept of Defense
541990 · All Other Professional, Scientific, an… Pennsylvania Posted Jun 01, 2026
SolicitationSmall Business
Closes tomorrowFall Protection Inspection and Recertification
Dept of Defense
541990 · All Other Professional, Scientific, an… Posted Jun 01, 2026
Sources SoughtSDVOSB
Closes tomorrowOperations Security (OPSEC) and Force Protection Program Support Request for Information
Dept of Defense
541990 · All Other Professional, Scientific, an… Maryland Posted Jun 01, 2026
Combined Synopsis/SolicitationSmall Business
Closes in 15 daysDecorative Artifacts Conservation Services at HACE
Interior, Department of the
541990 · All Other Professional, Scientific, an… Massachusetts Posted Jun 01, 2026
Set-asides used in this sector
Small Business8(a)HUBZoneSDVOSBWOSB
About NAICS 541990
Professional, scientific, or technical services not classified elsewhere — including translation, weather forecasting, and specialised consulting. A frequently-used residual code.
Typical award value: $50K – $5M per award.