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    1. Home
    2. /Gov Explore
    3. /NAICS Codes
    4. /541620

    NAICS Demand Lane

    Environmental Consulting Services, Contract Opportunities

    6,184 total opportunities (6,184 active) tied to NAICS 541620 across federal, state, local, and forecast sources.
    NAICS 541620Federal + SLED6.2K total
    View NAICS definition →
    Total Opportunities
    6.2K
    Across all indexed sources
    Active Estimate
    6.2K
    Approximate active count
    Source Count
    3
    Federal, SLED, and forecast lanes

    Latest federal solicitations for NAICS 541620.

    DEPARTMENT OF VETERANS AFFAIRS

    H999--FUEL TANK INSPECTIONS & MAINT/DIESEL FUEL TESTING AND POLISHING SERVICE

    Active

    AI Summary

    The Department of Veterans Affairs is seeking sources for fuel tank inspections and diesel fuel testing and polishing services at multiple locations. This is a Sources Sought Announcement to gather information for future procurement. Interested parties should respond by the specified deadline, providing relevant capabi…

    CA

    Posted Oct 5, 2026Due Oct 12, 2026Sources SoughtNAICS 541620Sol: 36C26127Q0076
    View details→

    DEPARTMENT OF VETERANS AFFAIRS

    ENVIRONMENTAL DISPOSAL LIABILITIES SURVEY

    Active

    AI Summary

    The Spokane VAMC is seeking a contractor to conduct an Environmental Disposal Liabilities Survey as detailed in the Statement of Work. This is a firm-fixed-price, one-time service opportunity. Interested bidders should review the solicitation for further details.

    WA

    Posted Oct 5, 2026Due Oct 19, 2026SolicitationNAICS 541620Service-Disabled Veteran-Owned Small Business (SDVOSB) Set-Aside (FAR 19.14)Sol: 36C26027Q0057
    View details→

    R--TECHNICAL SUPPORT FOR ASSESSMENT AND WATERSHED PROTECTION-3

    Archived

    AI Summary

    This opportunity involves a sole-source award to Research Triangle Institute for technical support in the US Virgin Islands Basic Water Quality Monitoring Program. The work is critical for compliance with the Clean Water Act and requires continuity to avoid delays and increased costs. The project is complex and spans m…

    Posted Oct 5, 2026JustificationNAICS 541620Sol: 68HERW26Q0086
    View details→

    DEPARTMENT OF COMMERCE

    ENVIRONMENTAL SUPPORT SERVICES

    Archived

    AI Summary

    The Department of Commerce's National Oceanic and Atmospheric Administration is seeking environmental support services through contract 1305M421DNAAA0016. This opportunity involves a ceiling increase and is justified for other than full and open competition. Interested bidders should review the details of the RFP.

    MD

    Posted Sep 29, 2026JustificationNAICS 541620Sol: 26-1175
    View details→

    DEPT OF DEFENSE

    SOURCES SOUGHT - SLDA NCSO

    Active

    AI Summary

    This Sources Sought Notice seeks qualified firms to provide on-site nuclear criticality safety support for the Shallow Land Disposal Area environmental-remediation project in Pennsylvania. The contractor will serve as an independent technical advisor, overseeing remediation operations and ensuring compliance with safet…

    NY

    Posted Sep 24, 2026Due Oct 9, 2026Sources SoughtNAICS 541620Sol: W912P426R1CMU
    View details→

    DEPARTMENT OF THE INTERIOR

    F--TECHNICAL SUPPORT SERVICES FOR CERCLA RESPONSE ACTIONS AT FIVE SITES

    Archived

    AI Summary

    The Department of the Interior's National Park Service is seeking technical support services for CERCLA response actions at five contaminated sites in Washington DC. This opportunity includes two one-year option periods and is detailed in the attached sole source justification.

    CO

    Posted Sep 23, 2026JustificationNAICS 541620Sol: 140P2126Q0096
    View details→

    DEPARTMENT OF THE INTERIOR

    F--CRAB ORCHARD SUPERFUND (CERCLA) AGREEMENT FOR CERCLA RESPONSE SUPPORT ON CRAB O

    Archived

    AI Summary

    The opportunity involves a CERCLA agreement for response support at Crab Orchard National Wildlife Refuge. This service is focused on environmental consulting related to Superfund activities. Bidders should be prepared to provide expertise in managing and executing CERCLA response actions.

    VA

    Posted Sep 23, 2026JustificationNAICS 541620Sol: 140F0S26Q0059
    View details→

    DEPT OF DEFENSE

    SOLICITATION FOR HAZARDOUS MATERIALS SURVEY SERVICES

    Archived

    AI Summary

    The Hawaii Air National Guard seeks a contractor for a hazardous materials survey, including testing for lead-based paint, asbestos, PCBs, mercury, mold, and heavy metals. Proposals are due by 11:00 AM HST on September 23, 2026. A site visit is scheduled for September 16, 2026. All work must comply with applicable code…

    HI

    Posted Sep 22, 2026Due Sep 23, 2026SolicitationNAICS 541620Total Small Business Set-Aside (FAR 19.5)Sol: W50SLF26QA024
    View details→

    DEPARTMENT OF VETERANS AFFAIRS

    H346--LEGIONELLA WATER TESTING

    Active

    AI Summary

    The Department of Veterans Affairs is seeking proposals for legionella water testing services. The bid due date has been extended to October 13, 2026, at 10:00 AM Pacific time. All questions regarding the solicitation will be answered by October 6, 2026, and no new questions will be accepted after that date.

    CA

    Posted Sep 21, 2026Due Oct 13, 2026Combined Synopsis/SolicitationNAICS 541620Service-Disabled Veteran-Owned Small Business (SDVOSB) Set-Aside (FAR 19.14)Sol: 36C26224Q1533
    View details→

    DEPARTMENT OF AGRICULTURE

    BPA CALL ORDER EXCEEDING $20,000 SYNOPSIS REQUISITION 1173743

    Archived

    AI Summary

    The USDA Forest Service is issuing a synopsis for a BPA Call Order exceeding $20,000 for environmental consulting services. This opportunity is restricted to approved companies eligible for call orders under the specified BPAs. The work will take place on the Ozark-St. Francis National Forests.

    GA

    Posted Sep 21, 2026Due Sep 11, 2026Special NoticeNAICS 541620Total Small Business Set-Aside (FAR 19.5)Sol: 12443926Q0196
    View details→

    Source mix

    How this NAICS code is represented across indexed contract sources.

    federal
    1,939
    sled
    4,161
    forecast
    84

    Related NAICS Codes

    • 54, Professional, Scientific, and Technical Services→
    • 541, Professional, Scientific, and Technical Services→
    • 5411, Legal Services→
    • 54111, Offices of Lawyers→
    • 541110, Offices of Lawyers→
    • 54112, Offices of Notaries→
    • 541120, Offices of Notaries→
    • 54119, Other Legal Services→
    • 541191, Title Abstract and Settlement Offices →
    • 541199, All Other Legal Services →

    Explore

    • 541620 Definition→
    • Browse NAICS Codes→
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    About NAICS 541620

    This industry comprises establishments primarily engaged in providing advice and assistance to businesses and other organizations on environmental issues, such as environmental impact assessments, remediation, and compliance with environmental regulations.

    Read the full NAICS definition →