UKNAICS 541990
All Other Professional, Scientific, and Technical Services contracts
Open federal opportunities classified under NAICS 541990.
48 opportunities open now
Combined Synopsis/SolicitationSmall Business
Closes in 9 daysSAFR BATHHOUSE MURAL MAINTENANCE 2026
Interior, Department of the
541990 · All Other Professional, Scientific, an… Posted May 30, 2026
Sources Sought
Closes in 3 daysR405--VHA Salary Survey Data Collection & Analysis (VA-26-00056720)
Veterans Affairs, Department of
541990 · All Other Professional, Scientific, an… Posted May 29, 2026
SolicitationNONE
Closes tomorrowEnterprise Logistics and Installation Support Services Commercial Solutions Opening (CSO)
Dept of Defense
541990 · All Other Professional, Scientific, an… District of Columbia Posted May 28, 2026
SolicitationNONE
Closes in 20 daysTests and Inspections of Fire Extinguishers, Fire Rated Doors and Panic Hardware at USAG Italy DMC
Dept of Defense
541990 · All Other Professional, Scientific, an… Pisa Posted May 28, 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 May 28, 2026
Combined Synopsis/SolicitationSmall Business
Closes in 22 daysNAMS/SAMS Vessel Inspection Blanket Purchase Agreement
Dept of Defense
541990 · All Other Professional, Scientific, an… Posted May 28, 2026
SolicitationSmall Business
Closes in 2 daysFort Peck Test Flow Cultural Resource Monitoring Survey
Dept of Defense
541990 · All Other Professional, Scientific, an… Montana Posted May 27, 2026
SolicitationNONE
Closes in 8 daysNational Centers for Environmental Information (NCEI) Western Regional Weather Records Center (WRWRC)
Commerce, Department of
541990 · All Other Professional, Scientific, an… North Carolina Posted May 27, 2026
SolicitationNONE
Closes in 8 daysNational Centers for Environmental Information (NCEI) Southern Regional Weather Records Center (SRWRC)
Commerce, Department of
541990 · All Other Professional, Scientific, an… North Carolina Posted May 27, 2026
SolicitationNONE
Closes in 8 daysNational Centers for Environmental Information (NCEI) Northeast Regional Weather Records Center (NRWRC)
Commerce, Department of
541990 · All Other Professional, Scientific, an… North Carolina Posted May 27, 2026
PresolicitationNONE
Closes in 2 daysAdvanced Mechanic Institute - 2.0
Dept of Defense
541990 · All Other Professional, Scientific, an… Posted May 27, 2026
SolicitationNONE
Closes in 8 daysNational Centers for Environmental Information (NCEI) Midwestern Regional Weather Records Center (MRWRC)
Commerce, Department of
541990 · All Other Professional, Scientific, an… North Carolina Posted May 27, 2026
SolicitationNONE
Closes tomorrowFEDLINK Electronic Resources competition
Library of Congress
541990 · All Other Professional, Scientific, an… Posted May 27, 2026
SolicitationNONE
Closes in 8 daysNational Centers for Environmental Information (NCEI) High Plains Regional Weather Records Center (HPRWRC)
Commerce, Department of
541990 · All Other Professional, Scientific, an… North Carolina Posted May 27, 2026
SolicitationNONE
Closes in 8 daysNational Centers for Environmental Information (NCEI) Southeast Regional Weather Records Center (SERWRC)
Commerce, Department of
541990 · All Other Professional, Scientific, an… North Carolina Posted May 27, 2026
Combined Synopsis/SolicitationSmall Business
Closes tomorrowH--NCAO FE/CO2 Services
Interior, Department of the
541990 · All Other Professional, Scientific, an… Posted May 26, 2026
Combined Synopsis/SolicitationSmall Business
Closes in 2 daysISO 9001 Certification
Dept of Defense
541990 · All Other Professional, Scientific, an… Posted May 26, 2026
Combined Synopsis/Solicitation8(a)
Closes in 3 daysHistoric Architecture, Conservation, and Engineeri
Interior, Department of the
541990 · All Other Professional, Scientific, an… Posted May 22, 2026
Special Notice
Closes in 10 daysR--CA50 - USGS Precipitation Sample Collection at NADP
Interior, Department of the
541990 · All Other Professional, Scientific, an… Posted May 22, 2026
Special Notice
Closes in 10 daysR--LA30 - USGS Precipitation Sample Collection at NADP
Interior, Department of the
541990 · All Other Professional, Scientific, an… Posted May 22, 2026
Special Notice
Closes in 10 daysR--NC36 - USGS Precipitation Sample Collection at NADP
Interior, Department of the
541990 · All Other Professional, Scientific, an… Posted May 22, 2026
PresolicitationSmall Business
Closes in 2 daysFort Peck Test Flow Cultural Resource Monitoring Survey
Dept of Defense
541990 · All Other Professional, Scientific, an… Montana Posted May 22, 2026
Presolicitation8(a)
Closes in 21 daysR--Science and Technical Support Services (STSSC) For Mid-Continent Region (MCR) i
Interior, Department of the
541990 · All Other Professional, Scientific, an… Posted May 06, 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.