What is the SBA size standard for NAICS 561310?

The SBA size standard for NAICS 561310 (Employment Placement Agencies) is $31 million in average annual receipts, per 13 C.F.R. § 121.201.

Is NAICS 561310 eligible for SDVOSB, 8(a), HUBZone, or WOSB set-asides?

Set-aside programs that commonly apply: SDVOSB, 8(a), HUBZone, WOSB, VOSB. Active set-aside surface for staffing services and contract-to-hire arrangements supporting federal agencies.

Which federal agencies buy under NAICS 561310?

For FY2024 reporting, the leading federal customers under NAICS 561310 were Department of Defense, Department of Veterans Affairs, Department of Health and Human Services, Department of Homeland Security, General Services Administration. Live obligation data is available on USAspending.gov.

What FAR or DFARS clauses commonly apply to NAICS 561310 contracts?

Frequent clause flowdowns include FAR 52.222-41 (Service Contract Labor Standards); FAR 52.219-14 (Limitations on Subcontracting); FAR 52.222-50 (Combating Trafficking in Persons); FAR 52.224-3 (Privacy Training); 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 561310 — Employment Placement Agencies

Placement of employees with federal agencies, including executive search, contract recruitment, and staffing. Federal use includes contract staffing for civilian agencies and DoD.

Quick facts

SBA size standard: $31 million; Average annual receipts · 13 C.F.R. § 121.201
FY2024 federal obligations: $100M–$500M; See live USAspending.gov data →

Top federal customers

Federal agencies that obligate the most spending under NAICS 561310 (FY2024 reporting period). Order tracks federal-obligation volume on USAspending.gov.

1.Department of Defense
2.Department of Veterans Affairs
3.Department of Health and Human Services
4.Department of Homeland Security
5.General Services Administration

Set-aside fit

Whether NAICS 561310 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)

Active set-aside surface for staffing services and contract-to-hire arrangements supporting federal agencies.

Frequent prime contractors

Companies that most frequently appear as prime awardees under NAICS 561310 for FY2024. Drawn from USAspending.gov public award records — verify currency at the live link below.

Insight Global
Robert Half
Kforce Government Solutions
ASRC Federal
IntelliDyne
HumanGood
Akima
Calibre Systems
PSI Pax
Astor & Sanders

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 applies to placed nonexempt service workers.
FAR 52.219-14Limitations on Subcontracting
Services-based limitation on set-aside awards.
FAR 52.222-50Combating Trafficking in Persons
Standard services flowdown.
FAR 52.224-3Privacy Training
Recruitment work routinely handles PII.
FAR 52.204-9Personal Identity Verification of Contractor Personnel
Federal facility access requires HSPD-12 credentials.

Indirect rate considerations

Pure-services structure. SCA fringe per applicable wage determination when placing nonexempt workers. Markup on placed labor (mark-up rate) functions as effective overhead and G&A combined; FAR Part 31 still applies on cost-type tasks.

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 561310

Signed timekeeping for placed workers. Indirect Rate Engine for SCA fringe documentation. QuickBooks sync for payroll alignment.

DCAA compliance →Indirect Rate Engine →DCAA readiness check →

Frequently asked

What is the SBA size standard for NAICS 561310?: The SBA size standard for NAICS 561310 (Employment Placement Agencies) is $31 million in average annual receipts, per 13 C.F.R. § 121.201.
Is NAICS 561310 eligible for SDVOSB, 8(a), HUBZone, or WOSB set-asides?: Set-aside programs that commonly apply: SDVOSB, 8(a), HUBZone, WOSB, VOSB. Active set-aside surface for staffing services and contract-to-hire arrangements supporting federal agencies.
Which federal agencies buy under NAICS 561310?: For FY2024 reporting, the leading federal customers under NAICS 561310 were Department of Defense, Department of Veterans Affairs, Department of Health and Human Services, Department of Homeland Security, General Services Administration. Live obligation data is available on USAspending.gov.
What FAR or DFARS clauses commonly apply to NAICS 561310 contracts?: Frequent clause flowdowns include FAR 52.222-41 (Service Contract Labor Standards); FAR 52.219-14 (Limitations on Subcontracting); FAR 52.222-50 (Combating Trafficking in Persons); FAR 52.224-3 (Privacy Training); 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 561310?: Pure-services structure. SCA fringe per applicable wage determination when placing nonexempt workers. Markup on placed labor (mark-up rate) functions as effective overhead and G&A combined; FAR Part 31 still applies on cost-type tasks.
How does FieldLedger help small federal contractors in NAICS 561310?: Signed timekeeping for placed workers. Indirect Rate Engine for SCA fringe documentation. QuickBooks sync for payroll alignment.

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 561310
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.