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    1. Home
    2. /Gov Explore
    3. /NAICS Codes
    4. /561

    NAICS Demand Lane

    Administrative and Support Services, Contract Opportunities

    40,359 total opportunities (40,359 active) tied to NAICS 561 across federal, state, local, and forecast sources.
    NAICS 561Federal + SLED40.4K total
    View NAICS definition →
    Total Opportunities
    40.4K
    Across all indexed sources
    Active Estimate
    40.4K
    Approximate active count
    Source Count
    3
    Federal, SLED, and forecast lanes

    Latest federal solicitations for NAICS 561.

    DEPT OF DEFENSE

    MISSION SUPPORT SERVICES BPA

    Active

    AI Summary

    The Department of Defense, specifically the Air Force, is seeking to establish a Blanket Purchase Agreement for mission support services. This includes commercial rental equipment, operational support, and logistics for National Special Security Events. The BPA aims to ensure rapid access to local vendors for high visi…

    DC

    Posted Aug 25, 2026Due Aug 28, 2026Combined Synopsis/SolicitationNAICS 561210Sol: FA706026Q0028
    View details→

    DEPT OF DEFENSE

    WALLA WALLA DISTRICT AND PORTLAND DISTRICT DIVE SERVICES

    Active

    AI Summary

    The U.S. Army Corps of Engineers is soliciting quotes for diving and underwater inspection services for the Walla Walla and Portland Districts. This opportunity is set aside for women-owned small businesses and includes several amendments to the solicitation. The deadline for submissions is September 2, 2026, at 10 AM …

    WA

    Posted Aug 25, 2026Due Sep 2, 2026Combined Synopsis/SolicitationNAICS 561990SBA Certified Women-Owned Small Business (WOSB) Program Set-Aside (FAR 19.15)Sol: W912EF26QA059
    View details→

    DEPT OF DEFENSE

    HENSLEY PEST CONTROL SERVICES

    Active

    AI Summary

    The Department of Defense is soliciting pest control services for the Army, with a focus on ground squirrel and pocket gopher management. A site visit is scheduled for August 11, 2026, to familiarize offerors with the project conditions. Questions must be submitted by August 14, 2026, to be considered.

    CA

    Posted Aug 25, 2026Due Aug 28, 2026SolicitationNAICS 561710Total Small Business Set-Aside (FAR 19.5)Sol: W9123826QA030
    View details→

    DEPARTMENT OF THE INTERIOR

    CA-RED BLUFF FWO-JANITORIAL SERVICE

    Active

    AI Summary

    The Department of the Interior, US Fish and Wildlife Service, is soliciting janitorial services for the Red Bluff Field Office. This opportunity is categorized under NAICS code 561720 and is not set aside for simplified acquisition procedures. Bidders should prepare to meet the specific cleaning and maintenance needs o…

    VA

    Posted Aug 25, 2026Due Sep 10, 2026SolicitationNAICS 561720Total Small Business Set-Aside (FAR 19.5)Sol: 140FS126Q0178
    View details→

    DEPT OF DEFENSE

    AIR FORCE MEMORIAL FACILITY MAINTENANCE SERVICE

    Active

    AI Summary

    The Department of Defense, specifically the Department of the Air Force, is seeking maintenance services for the Air Force Memorial Facility. Interested bidders should refer to the attached Combined Synopsis/Solicitation and Performance Work Statement for detailed requirements.

    DC

    Posted Aug 25, 2026Due Aug 31, 2026Combined Synopsis/SolicitationNAICS 561210Total Small Business Set-Aside (FAR 19.5)Sol: FA706026RCE10
    View details→

    DEPARTMENT OF VETERANS AFFAIRS

    H946--DISINFECTION OF WATER DISTRIBUTION SYSTEMS LOCATED AT THE BATTLE CREEK VA MEDICAL CENTER

    Active

    AI Summary

    The Battle Creek VA Medical Center is seeking quotes for the disinfection of water distribution systems, including quarterly sanitation services and annual maintenance of the RO Loop. This opportunity is set aside for Service Disabled Veteran Owned Small Businesses and follows RFQ procedures under FAR guidelines.

    OH

    Posted Aug 25, 2026Due Sep 8, 2026Combined Synopsis/SolicitationNAICS 561499Service-Disabled Veteran-Owned Small Business (SDVOSB) Set-Aside (FAR 19.14)Sol: 36C25026Q0881
    View details→

    DEPARTMENT OF HEALTH AND HUMAN SERVICES

    90-DAY PURCHASE ORDER - HOSPITALIST/PHYSICIAN SERVICE

    Active

    AI Summary

    The Great Plains Area Indian Health Service intends to award a sole source contract for hospitalist/physician services for a 90-day period. This procurement is under FAR regulations, emphasizing the urgency and necessity of the services. Interested parties may submit evidence supporting competition, but costs incurred …

    SD

    Posted Aug 25, 2026Due Sep 9, 2026Special NoticeNAICS 561320Sol: PRS_IHS153042
    View details→

    DEPT OF DEFENSE

    SOUND BLOCKING INSTALL

    Active

    AI Summary

    The U.S. Army Corps of Engineers requires installation of acoustic upgrades in a secure room at Bldg. 2593. This includes sound-blocking materials and devices to enhance speech privacy. A site visit is mandatory on September 1, and all contractors must be U.S. citizens with valid ID. Quotes must be submitted electronic…

    VA

    Posted Aug 25, 2026Due Sep 4, 2026Combined Synopsis/SolicitationNAICS 561210Total Small Business Set-Aside (FAR 19.5)Sol: W912HQ26S0065
    View details→

    DEPT OF DEFENSE

    BUILDING 325 HVAC DUCT CLEANING

    Active

    AI Summary

    The Department of Defense is seeking contractors for duct cleaning services at Building 325, Fort Sam Houston, TX. The project involves cleaning all duct work associated with HVAC units. Interested parties should respond to this sources sought notice.

    TX

    Posted Aug 25, 2026Due Sep 4, 2026Sources SoughtNAICS 561790Total Small Business Set-Aside (FAR 19.5)Sol: W9124J-26-Q-HVAC
    View details→

    DEPT OF DEFENSE

    IDS EXPANSION SCOPING - SOLICITATION

    Active

    AI Summary

    Eielson Air Force Base requires a comprehensive assessment and engineering design for the modernization of its Intrusion Detection and Access Control Systems. The contractor will deliver a detailed Installation Design Plan and Bill of Materials for a complete system overhaul, ensuring compliance with Department of War …

    AK

    Posted Aug 25, 2026Due Aug 28, 2026SolicitationNAICS 561621Sol: FA500426RA001
    View details→

    Source mix

    How this NAICS code is represented across indexed contract sources.

    federal
    28,305
    sled
    11,605
    forecast
    449

    Related NAICS Codes

    • 56, Administrative and Support and Waste Management and Remediation Services→
    • 5611, Office Administrative Services→
    • 56111, Office Administrative Services→
    • 561110, Office Administrative Services→
    • 5612, Facilities Support Services→
    • 56121, Facilities Support Services→
    • 561210, Facilities Support Services→
    • 5613, Employment Services→
    • 56131, Employment Placement Agencies and Executive Search Services→
    • 561311, Employment Placement Agencies →

    Explore

    • 561 Definition→
    • Browse NAICS Codes→
    • PSC Contract Lanes→
    • AI Contract Categories→
    • Browse by Agency→
    • Browse by State→

    About NAICS 561

    The Administrative and Support Services sector comprises establishments that perform routine support activities for the day-to-day operations of other organizations. These services include office administration, hiring and placing of personnel, security services, cleaning, and waste disposal services.

    Read the full NAICS definition →