What is the SBA size standard for NAICS 561612?

The SBA size standard for NAICS 561612 (Security Guards and Patrol Services) is $25 million in average annual receipts, per 13 C.F.R. § 121.201.

Which federal agencies buy under NAICS 561612?

For FY2024 reporting, the leading federal customers under NAICS 561612 were Department of Homeland Security, Department of Defense, Department of State, Department of Veterans Affairs, Department of Energy. Live obligation data is available on USAspending.gov.

What FAR or DFARS clauses commonly apply to NAICS 561612 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 52.219-14 (Limitations on Subcontracting); FAR 52.222-50 (Combating Trafficking in Persons); FAR 52.204-9 (Personal Identity Verification of Contractor Personnel). 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 561612 — Security Guards and Patrol Services

Armed and unarmed security guard services. Federal use includes Federal Protective Service (FPS) contracts, military base security, and embassy guard services.

Quick facts

SBA size standard: $25 million; Average annual receipts · 13 C.F.R. § 121.201
FY2024 federal obligations: $2B–$5B; See live USAspending.gov data →

Top federal customers

Federal agencies that obligate the most spending under NAICS 561612 (FY2024 reporting period). Order tracks federal-obligation volume on USAspending.gov.

1.Department of Homeland Security
2.Department of Defense
3.Department of State
4.Department of Veterans Affairs
5.Department of Energy

Set-aside fit

Whether NAICS 561612 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)

High-volume SDVOSB and 8(a) set-aside surface. Veteran-owned guard firms are widely competitive on FPS regional contracts.

Frequent prime contractors

Companies that most frequently appear as prime awardees under NAICS 561612 for FY2024. Drawn from USAspending.gov public award records — verify currency at the live link below.

Allied Universal
Securitas Critical Infrastructure
Triple Canopy (Constellis)
GardaWorld Federal Services
Paragon Systems
SOS International
Sterling Computers
MVM
Akal Security
Inter-Con Security

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 guard classifications drive labor cost.
FAR 52.222-49Service Contract Labor Standards — Place of Performance Unknown
Multi-site guard contracts use this companion clause.
FAR 52.219-14Limitations on Subcontracting
Services-based limitation on set-aside awards.
FAR 52.222-50Combating Trafficking in Persons
Standard services flowdown.
FAR 52.204-9Personal Identity Verification of Contractor Personnel
Federal facility access requires HSPD-12 PIV credentials.

Indirect rate considerations

Pure-services structure with heavy fringe loading. SCA fringe documentation aligned to the applicable wage determination is the core compliance issue. Health & welfare benefit accounting must match SCA categories.

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 561612

Signed timekeeping by post and shift, with SCA classification. Indirect Rate Engine for fringe-pool documentation. Multi-CLIN invoicing for FPS regional contracts.

DCAA compliance →Indirect Rate Engine →DCAA readiness check →

Frequently asked

What is the SBA size standard for NAICS 561612?: The SBA size standard for NAICS 561612 (Security Guards and Patrol Services) is $25 million in average annual receipts, per 13 C.F.R. § 121.201.
Is NAICS 561612 eligible for SDVOSB, 8(a), HUBZone, or WOSB set-asides?: Set-aside programs that commonly apply: SDVOSB, 8(a), HUBZone, WOSB, VOSB. High-volume SDVOSB and 8(a) set-aside surface. Veteran-owned guard firms are widely competitive on FPS regional contracts.
Which federal agencies buy under NAICS 561612?: For FY2024 reporting, the leading federal customers under NAICS 561612 were Department of Homeland Security, Department of Defense, Department of State, Department of Veterans Affairs, Department of Energy. Live obligation data is available on USAspending.gov.
What FAR or DFARS clauses commonly apply to NAICS 561612 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 52.219-14 (Limitations on Subcontracting); FAR 52.222-50 (Combating Trafficking in Persons); FAR 52.204-9 (Personal Identity Verification of Contractor Personnel). 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 561612?: Pure-services structure with heavy fringe loading. SCA fringe documentation aligned to the applicable wage determination is the core compliance issue. Health & welfare benefit accounting must match SCA categories.
How does FieldLedger help small federal contractors in NAICS 561612?: Signed timekeeping by post and shift, with SCA classification. Indirect Rate Engine for fringe-pool documentation. Multi-CLIN invoicing for FPS regional contracts.

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 561612
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.