All Other Support Services government contracts
24 open All Other Support Services notices under NAICS 561990 right now. Federal buyers posted 133 since Aug 7, 2026.
Latest All Other Support Services notices
Open notices first, soonest deadline first. Recently closed ones follow, so you can see what gets bought. Every row links to the official record.
Agencies buying All Other Support Services
Who posted notices under NAICS 561990 since Aug 7, 2026, busiest first.
| Agency | Notices | Open now |
|---|---|---|
| Department of the Army Department of Defense | 28 | 3 |
| Department of Veterans Affairs | 27 | 9 |
| Department of the Navy Department of Defense | 14 | 2 |
| Bureau of Reclamation Department of the Interior | 7 | 1 |
| Department of State | 7 | 3 |
| Department of the Air Force Department of Defense | 6 | 0 |
| Defense Threat Reduction Agency Department of Defense | 5 | 0 |
| National Aeronautics and Space Administration | 4 | 0 |
| Defense Commissary Agency Department of Defense | 4 | 0 |
| Internal Revenue Service Department of the Treasury | 3 | 0 |
| National Park Service Department of the Interior | 3 | 0 |
| U.S. Coast Guard Department of Homeland Security | 3 | 0 |
| U.S. Citizenship and Immigration Services Department of Homeland Security | 2 | 0 |
| HHS Office of the Assistant Secretary for Financial Resources Department of Health and Human Services | 2 | 0 |
| Indian Health Service Department of Health and Human Services | 2 | 0 |
Every federal buyer is listed in the agency directory.
Who wins All Other Support Services contracts
Contractors ranked by value obligated on NAICS 561990 awards.
| Contractor | Awards | Obligated |
|---|---|---|
| Lockheed Martin Corporation UEI JKVWEPKJRR65 | 459 | $5.5B |
| Raytheon Company UEI LWF3QUSCDNG1 | 1 | $1B |
| Isotek Systems, LLC UEI WJZ8KR7KSA33 | 1 | $925M |
| Lockheed Martin Corporation UEI G4KDGE4JFFK7 | 2 | $572M |
| CGI Federal Inc. UEI TRKEP1HEBNS5 | 1 | $403M |
| General Dynamics Information Technology, Inc. UEI SMNWM6HN79X5 | 3 | $352M |
| Vertex Modernization and Sustainment LLC UEI NQCCULJZFY29 | 6 | $312M |
| Booz Allen Hamilton Inc UEI JCBMLGPE6Z71 | 8 | $284M |
| General Dynamics Land Systems Inc. UEI HAWKSQF848W7 | 8 | $257M |
| General Atomics Aeronautical Systems, Inc. UEI ZH4NVFG3Z526 | 18 | $210M |
From federal award records of $1M or more since October 2023. More in the contractor directory.
Stop checking this page by hand
Matched, not listed
Describe your company once. Captivaq scores every new notice against your capabilities, locations, and set-asides.
Earlier than the RFP
Forecasts and sources sought notices surface months before the solicitation, while you can still shape the win.
A draft, not a link
For the bids worth pursuing, it reads the solicitation and drafts the response with citations back to the source.
Questions people ask
What is NAICS 561990?
NAICS 561990 is the federal industry code for All Other Support Services. Agencies attach it to solicitations for this work, and it decides which small business size standard applies.
Are these real government contracts?
Yes. Every row comes from the public feed of the official source, most often SAM.gov, and links straight to the official notice. Confirm deadlines and amendments there before you respond.
Will this page list every open All Other Support Services bid?
No single search can. Agencies sometimes file this work under a neighboring code or describe it differently. Use this page to find leads fast, then check scope, eligibility, and attachments in the official notice.
How often is this page updated?
The list refreshes through the day from the same opportunity database that powers Captivaq. It currently tracks 24 open notices.
How do I hear about new ones without checking back?
Captivaq watches the sources against your company profile and alerts you when a fitting notice posts, then scores the fit and drafts the response. That is the product behind this page.
Keep exploring
Facilities support services contracts
Full facility operation contracts that bundle cleaning, maintenance, and operations.
NAICS 561621Security Systems Services (except Locksmiths) contracts
424 notices, 64 open now.
NAICS 561730Landscaping services contracts
Grounds maintenance, mowing, tree care, and snow removal on public property.
NAICS 561720Janitorial services contracts
Cleaning contracts for federal offices, clinics, visitor centers, and military installations.
NAICS 562910Environmental remediation contracts
Cleanup of contaminated soil, tanks, asbestos, and hazardous sites.
NAICS 562111Waste collection contracts
Trash hauling and refuse collection for bases, parks, and public facilities.
More codes like this one are in administrative, support, and waste management services. Bidding in Canada? Tenders there classify work by UNSPSC rather than NAICS; start from Canadian government tenders.
Captivaq is an independent service from Logesta Labs LLC and is not affiliated with or endorsed by the U.S. government or SAM.gov. The notice on the official source portal is the record that governs; confirm deadlines and amendments there.