NAICS Demand Lane

    All Other Professional, Scientific, and Technical Services — Contract Opportunities

    4,681 total opportunities (4,681 active) tied to NAICS 541990 across federal, state, local, and forecast sources.
    NAICS 541990Federal + SLED4.7K total
    Total Opportunities
    4.7K
    Across all indexed sources
    Active Estimate
    4.7K
    Approximate active count
    Source Count
    3
    Federal, SLED, and forecast lanes

    Latest federal solicitations for NAICS 541990.

    AI Summary

    The Department of Defense is re-opening Solicitation W911QY-26-R-A007 for capability program executive services related to soldier medical devices. This RFP seeks proposals for materiel fielding and medical liaison support services. Interested parties must submit their responses by the specified due date and direct any…

    MA

    Posted Jul 13, 2026Due Aug 13, 2026SolicitationNAICS 541990Total Small Business Set-Aside (FAR 19.5)Sol: Reposting_RFP_W911QY26RA007_MaterielFielding_MedicalLiaisonSupportServices
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    AI Summary

    This opportunity is for science and technical support services for the Department of the Interior's US Geological Survey. It is a Request for Proposals (RFP) and is a 100% Competitive 8(a) set-aside. Offerors must be registered in SAM to submit proposals.

    CO

    Posted Jul 13, 2026Due Jul 27, 2026SolicitationNAICS 5419908(a) Set-Aside (FAR 19.8)Sol: 140G0226R0003
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    AI Summary

    The National Oceanic and Atmospheric Administration is seeking proposals for fleet program administration support for its Northeast Fisheries Science Center. This opportunity is categorized as a service and is not under FAR Part 13. Bidders should focus on providing comprehensive fleet administration solutions.

    WA

    Posted Jul 13, 2026Due Jul 27, 2026Combined Synopsis/SolicitationNAICS 541990Total Small Business Set-Aside (FAR 19.5)Sol: 1305M326Q0305
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    AI Summary

    The GSA is issuing Amendment 0009 for the OASIS+ 8(a) Small Business Set-Aside solicitation, which is continuously open for proposals. This IDIQ contract allows for rolling admissions and on-ramping for multiple domains. Offerors must register in SAM.gov and submit proposals through the OASIS+ Submission Portal. Timeli…

    DC

    Posted Jul 13, 2026Due Jan 11, 2027SolicitationNAICS 5419908(a) Set-Aside (FAR 19.8)Sol: 47QRCA23R0002-P2
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    AI Summary

    The GSA is issuing Amendment 0009 for the OASIS+ HUBZone Small Business Set-Aside solicitation. This is a continuously open solicitation for integrated services, allowing for rolling admissions and on-ramping. Offerors must register in SAM.gov and submit proposals through the OASIS+ SubmissionPortal. All amendments mus…

    DC

    Posted Jul 13, 2026Due Jan 11, 2027SolicitationNAICS 541990Historically Underutilized Business (HUBZone) Set-Aside (FAR 19.13)Sol: 47QRCA23R0003-P2
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    AI Summary

    The GSA is issuing Amendment 0009 for the OASIS+ SDVOSB set-aside solicitation, which is continuously open for proposals. Offerors must register in SAM.gov and submit proposals through the OASIS+ SubmissionPortal. This opportunity is for integrated services under an IDIQ contract, allowing multiple agencies to particip…

    DC

    Posted Jul 13, 2026Due Jan 11, 2027SolicitationNAICS 541990Service-Disabled Veteran-Owned Small Business (SDVOSB) Set-Aside (FAR 19.14)Sol: 47QRCA23R0004-P2
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    AI Summary

    The GSA is issuing Amendment 0009 for the OASIS+ WOSB Set-Aside solicitation, which is continuously open for proposals. This IDIQ contract allows for rolling admissions and multiple domain submissions. Offerors must register in SAM.gov and submit proposals through the OASIS+ Submission Portal. Timelines for awards will…

    DC

    Posted Jul 13, 2026Due Jan 11, 2027SolicitationNAICS 541990SBA Certified Women-Owned Small Business (WOSB) Program Set-Aside (FAR 19.15)Sol: 47QRCA23R0005-P2
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    AI Summary

    The GSA is issuing Amendment 0009 for the OASIS+ Total Small Business Set-Aside, a continuously open solicitation for integrated services. Offerors must register in SAM.gov and submit proposals through the OASIS+ SubmissionPortal. This opportunity allows for rolling admissions and multiple domain submissions, with no f…

    DC

    Posted Jul 13, 2026Due Jan 11, 2027SolicitationNAICS 541990Total Small Business Set-Aside (FAR 19.5)Sol: 47QRCA23R0001-P2
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    AI Summary

    The Department of Health and Human Services is seeking preparatory services to deliver individualized exercise recommendations for breast cancer survivors. This opportunity is structured as a combined synopsis/solicitation, and interested bidders should refer to the attached documents for evaluation criteria and furthe…

    MD

    Posted Jul 13, 2026Due Jul 23, 2026Combined Synopsis/SolicitationNAICS 541990Sol: 75N98026Q00780
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    AI Summary

    The National Institutes of Health is seeking proposals for research on diffusion and generative stochastic models to address challenges in modality synthesis, image enhancement, and artifact reduction in magnetic resonance imaging. This presolicitation indicates a sole source intent, inviting specialized service provid…

    MD

    Posted Jul 13, 2026Due Jul 23, 2026PresolicitationNAICS 541990Sol: 75N98026Q00777
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    Source mix

    How this NAICS code is represented across indexed contract sources.

    federal
    4,263
    sled
    106
    forecast
    312

    About NAICS 541990

    This industry comprises establishments primarily engaged in providing professional, scientific, and technical services not classified in other specific industries. These services include a variety of specialized consulting and advisory services.

    Read the full NAICS definition →

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