What is NAICS code 561110?

561110 is the U.S. Census Bureau's 2022 NAICS code for Office Administrative Services, inside the Administrative and Support and Waste Management and Remediation Services sector and the Administrative and Support Services subsector. Federal solicitations carry exactly one NAICS code, and that code is how the buyer classifies the requirement — it decides which size standard applies to the bid and, with it, whether your business counts as small for that contract.

Where is NAICS 561110 work performed?

District of Columbia leads of the states whose award records we hold for this code, with 819 awards. Place of performance is where the work happens, not where the winner is headquartered, so this is the market you would be serving rather than a list of local companies. Every state whose stored industry leaderboard reaches this code is listed on this page, each linking to its own award history; a state where it ranks below that cut is missing from the list entirely.

Are there open government bids under NAICS 561110 right now?

Not as of this page load. That is a fact about the feed we track — federal SAM.gov postings plus the state portals we pull — and not a statement that no government anywhere is buying this work today. Join the free alerts and Sam will email you when a solicitation carrying 561110 appears.

Do I have to use NAICS 561110 to bid?

You bid what the solicitation says. The buyer assigns one NAICS code to the requirement, and that code — not the list on your SAM.gov registration — sets the size standard your offer is judged against. Your registration should carry every code you can genuinely perform, because that is what buyers filter on during market research, but adding a code you cannot deliver under does not make you eligible for anything.

NAICS 561110 · Administrative and Support and Waste Management and Remediation Services

Office Administrative Services government contracts

7,626 federal contract awards on file carry NAICS 561110. Below: where that work is performed, who has been winning it, which agencies buy it, and the solicitations open under this code right now.

Bids open under 561110→Check your set-aside eligibility

What NAICS 561110 covers

Official 2022 classification

National industry: 561110 · Office Administrative Services
NAICS industry: 56111 · Office Administrative Services
Industry group: 5611 · Office Administrative Services
Subsector: 561 · Administrative and Support Services
Sector: 56 · Administrative and Support and Waste Management and Remediation Services

Also searched as: office administration, administrative support.

Codes and titles are the U.S. Census Bureau's 2022 NAICS, verbatim. Nothing on this page paraphrases an official title.

SBA size standard

We hold no size standard published for these exact six digits, and we will not put a neighbouring industry's figure here in its place. Sibling codes in the same NAICS family do not always share a standard, and self-certifying against the wrong one is how a bidder ends up claiming a set-aside they do not qualify for. Look 561110 up directly in the SBA table.

13 CFR 121.201— the official size-standard table →

Not sure whether you qualify? The free set-aside checker walks the size test and the certification programs one question at a time.

Federal contract awards under NAICS 561110

Awards on file

7,626

An exact count of the federal contract award records we hold carrying NAICS 561110. It is more than this page folds in one pass (500awards), so we publish no dollar totals or contractor rankings for this code — a ranking computed from part of an industry is not that industry's ranking. The state breakdown below is measured separately and each row is exact for its state.

Where NAICS 561110 work is performed

Award records under 561110 in the 30 stateswhere this industry ranks among that state's largest by contract dollars. Each row is exact for its state; a state where 561110 ranks below that cut contributes nothing here, so treat the list as a floor rather than a national breakdown. Measured August 21, 2026 — these figures describe the records we held at that moment.

District of Columbia
819 award records
$2,481,540,226
Virginia
1,088 award records
$2,476,319,569
Maryland
1,130 award records
$1,257,903,217
Texas
500 award records
$781,945,492
Missouri
47 award records
$502,086,416
Mississippi
84 award records
$461,372,256
Vermont
15 award records
$274,232,801
Colorado
225 award records
$258,491,665
Georgia
257 award records
$191,031,004
Nebraska
29 award records
$147,494,229
Washington
178 award records
$139,751,281
North Carolina
142 award records
$124,951,999
New Mexico
125 award records
$118,544,767
Alabama
80 award records
$89,663,392
Tennessee
67 award records
$77,466,934
West Virginia
28 award records
$72,389,810
Oklahoma
196 award records
$68,336,450
South Carolina
151 award records
$65,731,268
Hawaii
151 award records
$61,138,945
Kentucky
27 award records
$58,158,087
New Hampshire
8 award records
$49,515,490
Louisiana
38 award records
$44,272,539
Minnesota
13 award records
$29,491,360
Kansas
76 award records
$26,763,775
Alaska
44 award records
$22,955,946
Iowa
51 award records
$21,468,039
Rhode Island
25 award records
$18,499,058
Wyoming
21 award records
$10,110,057
South Dakota
12 award records
$6,594,848
North Dakota
15 award records
$5,319,106

Government bids open under NAICS 561110

See more open bids →

Awards are history. These are live: solicitations tagged with this code that still have a deadline ahead of them, soonest first, each carrying the agency's own published record — the buyer, the deadline and the documents. Sam's deep workup, the part that names what disqualifies bidders, is published for specialty-trade construction and janitorial and facilities services, and this industry is not in that scope — so we do not publish one here.

Nothing carrying 561110 is open this minute — solicitations come and go daily. Get free alerts below and Sam will email you when one lands.

How to use a NAICS code to win government work

Your NAICS code is not paperwork trivia. It is the hinge the whole federal eligibility question turns on: the buyer assigns one code to the requirement, that code sets the SBA size standard the offers are measured against, and the size standard decides whether your business counts as small — and therefore whether you can compete for the set-aside version of the work at all.

Which means the first question is never “can I do this job”. It is “is this contract classified as work I am registered and sized to do”. A firm that can genuinely perform under 561110 but never listed it on its SAM.gov registration is invisible to the market research a contracting officer does before writing the solicitation, which is where most small-business awards are really decided.

Award history under a code tells you the rest. It shows which agencies actually buy this work and where, which contractors have been holding it, and roughly what it pays — before you spend two weeks on a proposal against an incumbent who has held the contract for nine years. A contract with an end date twelve to eighteen months out is a recompete in the making, and the quiet window before it is posted is when a capability statement and a call to the contracting office are worth more than any proposal you could write later.

None of it works if you are not registered. A federal award requires an active SAM.gov registration with a UEI, and the set-aside on a solicitation decides whether your bid is even read. Both are free to sort out, and both are the most common reason a ready contractor is disqualified on a technicality.

Where this page's facts come from

The classification. U.S. Census Bureau 2022 NAICS. Codes, titles and the sector hierarchy are reproduced verbatim from the Census files and cross-checked against a second official Census file. Nothing is paraphrased or shortened.
The size standard. SBA, 13 CFR 121.201. We print a threshold only when it is published for these exact six digits; where it is not, we say so and link the table rather than showing a related industry's figure.
The award figures. Federal prime contract awards published by USAspending.gov, the government's official spending record. Public record, free, no data vendor in between. Grants, loans and direct payments are excluded — they are not work a contractor competes for — and so is state, county and city purchasing.
What is not here. This is a portion of federal contracting under 561110, not all of it. Treat these figures as a floor: the real market is larger than what is on this page. For an industry this size we publish the exact record count and the per-state figures, and deliberately publish no dollar totals or rankings, because the fold a page render can afford would cover only part of the code.
Missing values. Where USAspending records no amount, agency or recipient, we leave it out instead of filling it in. An award with no reported amount is still counted as an award but enters no total or average, which is why a row's award count can outrun its dollars.

NAICS 561110 — common questions

What is NAICS code 561110?: 561110 is the U.S. Census Bureau's 2022 NAICS code for Office Administrative Services, inside the Administrative and Support and Waste Management and Remediation Services sector and the Administrative and Support Services subsector. Federal solicitations carry exactly one NAICS code, and that code is how the buyer classifies the requirement — it decides which size standard applies to the bid and, with it, whether your business counts as small for that contract.
What is the SBA size standard for NAICS 561110?: We do not hold a size standard published for these exact six digits, and we will not show you a neighbouring industry's figure in its place — sibling codes in the same NAICS family do not always share a standard, and self-certifying against the wrong one is how a bidder ends up claiming a set-aside they do not qualify for. Look up 561110 directly in 13 CFR 121.201, which lists a threshold for every code.
Where is NAICS 561110 work performed?: District of Columbia leads of the states whose award records we hold for this code, with 819 awards. Place of performance is where the work happens, not where the winner is headquartered, so this is the market you would be serving rather than a list of local companies. Every state whose stored industry leaderboard reaches this code is listed on this page, each linking to its own award history; a state where it ranks below that cut is missing from the list entirely.
Are there open government bids under NAICS 561110 right now?: Not as of this page load. That is a fact about the feed we track — federal SAM.gov postings plus the state portals we pull — and not a statement that no government anywhere is buying this work today. Join the free alerts and Sam will email you when a solicitation carrying 561110 appears.
Do I have to use NAICS 561110 to bid?: You bid what the solicitation says. The buyer assigns one NAICS code to the requirement, and that code — not the list on your SAM.gov registration — sets the size standard your offer is judged against. Your registration should carry every code you can genuinely perform, because that is what buyers filter on during market research, but adding a code you cannot deliver under does not make you eligible for anything.

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