What is the SBA size standard for NAICS 561210?

The SBA size standard for NAICS 561210 (Facilities Support Services) is $47 million in average annual receipts, per 13 C.F.R. § 121.201.

Which federal agencies buy under NAICS 561210?

For FY2024 reporting, the leading federal customers under NAICS 561210 were Department of Defense, U.S. Army Corps of Engineers, Naval Facilities Engineering Systems Command, Department of Veterans Affairs, General Services Administration. Live obligation data is available on USAspending.gov.

What FAR or DFARS clauses commonly apply to NAICS 561210 contracts?

Frequent clause flowdowns include FAR 52.222-41 (Service Contract Labor Standards); FAR 52.222-49 (Service Contract Labor Standards — Place of Performance Unknown); FAR 52.236-13 (Accident Prevention); FAR 52.219-14 (Limitations on Subcontracting); FAR 52.245-1 (Government Property). Each contract instrument will incorporate clauses by reference under FAR 52.252-2; this list reflects the high-frequency set for this NAICS, not an exhaustive flowdown.

Administrative & Support Services

NAICS 561210 — Facilities Support Services

Bundled facilities operations including maintenance, custodial, security, and grounds. Federal use is dominated by base operations support (BOS) contracts at military installations.

Quick facts

SBA size standard: $47 million; Average annual receipts · 13 C.F.R. § 121.201
FY2024 federal obligations: $5B–$10B; See live USAspending.gov data →

Top federal customers

Federal agencies that obligate the most spending under NAICS 561210 (FY2024 reporting period). Order tracks federal-obligation volume on USAspending.gov.

1.Department of Defense
2.U.S. Army Corps of Engineers
3.Naval Facilities Engineering Systems Command
4.Department of Veterans Affairs
5.General Services Administration

Set-aside fit

Whether NAICS 561210 commonly carries set-aside designations on federal awards. Eligibility for any specific solicitation is set by the contracting officer; this table reflects the FY2024 award pattern, not a guarantee of set-aside status.

SDVOSB (Service-Disabled Veteran-Owned Small Business)
8(a) Business Development Program
HUBZone Small Business
WOSB / EDWOSB
VOSB (Veteran-Owned Small Business)

Major BOS primes dominate, but 8(a) and SDVOSB awards run for smaller installations. ANC and tribal 8(a) firms are particularly active.

Frequent prime contractors

Companies that most frequently appear as prime awardees under NAICS 561210 for FY2024. Drawn from USAspending.gov public award records — verify currency at the live link below.

KBR
Vectrus
Amentum
Fluor Corporation
PAE
Akima
Alutiiq
Chugach Alaska
V2X
Leidos

See live award data on USAspending.gov →

Common FAR / DFARS clauses

Frequently flowed-down clauses on contracts in this NAICS. The clause text on acquisition.gov is authoritative; this list captures the practical pattern, not an exhaustive flowdown.

FAR 52.222-41Service Contract Labor Standards
SCA wage determinations for every facilities trade.
FAR 52.222-49Service Contract Labor Standards — Place of Performance Unknown
Companion when multiple sites are covered.
FAR 52.236-13Accident Prevention
Facilities work has heavy OSHA exposure.
FAR 52.219-14Limitations on Subcontracting
Services-based limitation on set-aside awards.
FAR 52.245-1Government Property
BOS contracts routinely include accountable government property.

Indirect rate considerations

Hybrid services / equipment cost structure. Site overhead per installation. SCA fringe documentation by wage determination. Vehicle and equipment fleet recovers under USACE EP 1110-1-8 or shop overhead. G&A on subcontract dollars typically negotiated.

See FieldLedger's Indirect Rate Engine for pool definition and rate tracking, or read the FieldLedger methodology for the underlying FAR Part 31 framework.

How FieldLedger fits NAICS 561210

Signed timekeeping with SCA classification by wage determination. Equipment costing for fleet recovery. Multi-CLIN invoicing for BOS task orders. Project P&L per installation.

DCAA compliance →Indirect Rate Engine →DCAA readiness check →

Frequently asked

What is the SBA size standard for NAICS 561210?: The SBA size standard for NAICS 561210 (Facilities Support Services) is $47 million in average annual receipts, per 13 C.F.R. § 121.201.
Is NAICS 561210 eligible for SDVOSB, 8(a), HUBZone, or WOSB set-asides?: Set-aside programs that commonly apply: SDVOSB, 8(a), HUBZone, WOSB, VOSB. Major BOS primes dominate, but 8(a) and SDVOSB awards run for smaller installations. ANC and tribal 8(a) firms are particularly active.
Which federal agencies buy under NAICS 561210?: For FY2024 reporting, the leading federal customers under NAICS 561210 were Department of Defense, U.S. Army Corps of Engineers, Naval Facilities Engineering Systems Command, Department of Veterans Affairs, General Services Administration. Live obligation data is available on USAspending.gov.
What FAR or DFARS clauses commonly apply to NAICS 561210 contracts?: Frequent clause flowdowns include FAR 52.222-41 (Service Contract Labor Standards); FAR 52.222-49 (Service Contract Labor Standards — Place of Performance Unknown); FAR 52.236-13 (Accident Prevention); FAR 52.219-14 (Limitations on Subcontracting); FAR 52.245-1 (Government Property). Each contract instrument will incorporate clauses by reference under FAR 52.252-2; this list reflects the high-frequency set for this NAICS, not an exhaustive flowdown.
What indirect-rate structure works for a federal contractor in NAICS 561210?: Hybrid services / equipment cost structure. Site overhead per installation. SCA fringe documentation by wage determination. Vehicle and equipment fleet recovers under USACE EP 1110-1-8 or shop overhead. G&A on subcontract dollars typically negotiated.
How does FieldLedger help small federal contractors in NAICS 561210?: Signed timekeeping with SCA classification by wage determination. Equipment costing for fleet recovery. Multi-CLIN invoicing for BOS task orders. Project P&L per installation.

Sources

U.S. Census NAICS manual — census.gov/naics
SBA size-standards table — 13 C.F.R. § 121.201 (eCFR)
Federal obligations + prime awardees — USAspending.gov NAICS 561210
FAR / DFARS clause text — acquisition.gov

Snapshot date: 2026-05-08 (FY2024 reporting period). Federal-obligation bands and prime-contractor lists reflect the data as of the snapshot — refresh against USAspending.gov for current figures.