561990: All Other Support Services
Sector 56, Administrative and Support and Waste Management and Remediation Services. Subsector 561, Administrative and Support Services. The federal award record for this code: who buys it, who won it, what it went for, what recompetes soon.
NAICS 561990 in numbers
NAICS 561990 covers all other support services, a broad category where the federal government spent $41.23 billion across 51,421 awards from 2001 to 2027. The Defense Commissary Agency, Army Sustainment Command, and Air Force Materiel Command are major buyers. Most awards go unrestricted, though the Small Business Administration set-aside program accounts for about 18 percent of awards. With 2,182 distinct vendors on record, the market remains fragmented. Buyers range from small federal agencies to large commands, and they purchase everything this classification covers.
The median award of $16,500 signals that most contracts are small, though the top four buyers account for $19.12 billion, meaning large deals concentrate among a few agencies. A firm considering this space should know that 60 percent of awards carry no set-aside restriction, so competition is open to all vendors. The SBA set-aside program offers a clearer path for small businesses, with 9,168 awards. If your firm qualifies as an 8(a) or HUBZone contractor, those categories show 435 and 366 awards respectively, smaller but potentially less crowded.
Watch for 1,038 contracts worth $2.84 billion ending within the next 12 months. These represent recompete opportunities where incumbent vendors may face new competition or where new entrants can bid. The 38 active notices suggest steady procurement activity. Track which agencies post most frequently in this code and monitor their contract vehicles, since repeat buyers like PEO-SOFSA and the Defense Commissary Agency may offer faster paths to award than one-off solicitations.
Everything behind these numbers for NAICS 561990
- Every buying office that awarded in this code, ranked by what they spent
- Every vendor that won, resolved to one record per business
- Every award back to FY2001, searchable and exportable
- Contracts ending soon, scored for how open the next round looks
- Every open notice on this code, with the buyer history beside it
The numbers above are open to anybody. The organized record behind them is what a plan pays for: every award, every buyer, every vendor, cleaned, resolved and read again every night.
Open right now under NAICS 561990
44 open notices right now, 7 closing within seven days. The newest 5:
| Posted | Notice | Buyer | NAICS | Set-aside | Due |
|---|---|---|---|---|---|
| Oct 28, 2026 | Social Media Manager & Press SecretarySources Sought · TX | EOUSA-ACQUISITIONS STAFF | 561990 | Nov 9, 2026 | |
| Oct 28, 2026 | Diving Services for the Albany Field Office, Base Year plus Four Option YearsCombined Synopsis/Solicitation | W2SD ENDIST NEW YORK | 561990 | SBA | Nov 5, 2026 |
| Oct 28, 2026 | Call for Solutions - Europe Area InventorySpecial Notice · Kaiserslautern DE | DEFENSE COMMISSARY AGENCY- EUR AREA | 561990 | Nov 6, 2026 | |
| Oct 27, 2026 | Reston Facility IT DisposalCombined Synopsis/Solicitation | DEFENSE THREAT REDUCTION AGENCY | 561990 | SBA | Nov 9, 2026 |
| Oct 27, 2026 | S216--Houston Doc Destruction Service (Shredding)Sources Sought | 256-NETWORK CONTRACT OFFICE 16 (36C256) | 561990 | Nov 3, 2026 |
Where this code sits
NAICS 561990 is a six-digit national industry in the 2022 North American Industry Classification System. It sits under industry group 5619 (Other Support Services), NAICS industry 56199 (All Other Support Services), in subsector 561 (Administrative and Support Services) of sector 56 (Administrative and Support and Waste Management and Remediation Services).
Federal buyers assign one NAICS code to each award and each notice. The code describes the kind of business the buyer expects to perform the work, not the item itself; the item is described by the PSC code. The numbers above come from awards and notices carrying this exact code. Related work often sits in the neighboring codes listed below, so watch the neighbors too.
The official definition, with what the code includes and excludes, is on the Census NAICS page linked at the bottom.
Codes near this one
The other national industries in group 5619, Other Support Services.
How to use this page
Who bought it ranks contracting offices by what they obligated under this code. Who won it ranks vendors after names are resolved to one record each. What it went for shows award size bands; the median describes a typical award better than the average. What recompetes soon lists awards whose period of performance ends inside twelve months.
A code with nothing on record yet says so. Members see the individual awards and notices behind every number, buyer and incumbent profiles, alerts and briefs.
Related
- Every NAICS codeThe index by sector and subsector.
- Choosing NAICS codesPrimary and secondary codes for your registration.
- Recompete radarContracts in this code coming due.
- Award historyWho won last time and at what price.
See who was last awarded in your NAICS
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