What is the SBA size standard for NAICS 541519?

The SBA size standard for NAICS 541519 (Other Computer Related Services) is $34 million in average annual receipts, per 13 C.F.R. § 121.201. Higher size standard ($34M) when qualifying as an Information Technology Value Added Reseller (ITVAR) under footnote 18 of 13 CFR 121.201, with a 150-employee cap.

Which federal agencies buy under NAICS 541519?

For FY2024 reporting, the leading federal customers under NAICS 541519 were Department of Defense, Department of Veterans Affairs, Department of Homeland Security, General Services Administration, Treasury. Live obligation data is available on USAspending.gov.

What FAR or DFARS clauses commonly apply to NAICS 541519 contracts?

Frequent clause flowdowns include DFARS 252.204-7012 (Safeguarding Covered Defense Information); FAR 52.227-19 (Commercial Computer Software License); FAR 52.219-14 (Limitations on Subcontracting); FAR 52.204-21 (Basic Safeguarding of Covered Contractor Information Systems). 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.

Professional, Scientific, Technical Services

NAICS 541519 — Other Computer Related Services

Computer-related services that do not fit 541511 (programming), 541512 (systems design), or 541513 (facilities management). Common federal use: software installation, disaster recovery, and computer training services.

Quick facts

SBA size standard: $34 million; Average annual receipts · 13 C.F.R. § 121.201; Higher size standard ($34M) when qualifying as an Information Technology Value Added Reseller (ITVAR) under footnote 18 of 13 CFR 121.201, with a 150-employee cap.
FY2024 federal obligations: $2B–$5B; See live USAspending.gov data →

Top federal customers

Federal agencies that obligate the most spending under NAICS 541519 (FY2024 reporting period). Order tracks federal-obligation volume on USAspending.gov.

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

Set-aside fit

Whether NAICS 541519 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)

ITVAR exception governs hardware-reseller awards. Pure-services awards use the standard $34M threshold. Common code on GSA Schedule 70 / MAS IT.

Frequent prime contractors

Companies that most frequently appear as prime awardees under NAICS 541519 for FY2024. Drawn from USAspending.gov public award records — verify currency at the live link below.

Leidos
Booz Allen Hamilton
Peraton
CACI International
SAIC
GovCIO
General Dynamics IT
ManTech International
Iron Bow Technologies
World Wide Technology

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.

DFARS 252.204-7012Safeguarding Covered Defense Information
NIST 800-171 flowdown on every DoD IT services contract.
FAR 52.227-19Commercial Computer Software License
Default treatment for COTS software delivered with the service.
FAR 52.219-14Limitations on Subcontracting
Services-based limitation. ITVAR awards have separate manufacturing-side rules under FAR 19.505.
FAR 52.204-21Basic Safeguarding of Covered Contractor Information Systems
Civilian-agency baseline that mirrors the 15 basic NIST 800-171 controls.

Indirect rate considerations

IT services firms run fringe / overhead / G&A. ITVAR pass-through hardware needs material-handling treatment under FAR 31.203 to keep G&A defensible. Watch for distorted G&A rates when reseller volume swings year over year.

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 541519

Indirect Rate Engine handles the materials-handling pool ITVAR firms need. DCAA-compliant timekeeping for the services side. Multi-CLIN invoicing for mixed product/service awards.

DCAA compliance →Indirect Rate Engine →DCAA readiness check →

Frequently asked

What is the SBA size standard for NAICS 541519?: The SBA size standard for NAICS 541519 (Other Computer Related Services) is $34 million in average annual receipts, per 13 C.F.R. § 121.201. Higher size standard ($34M) when qualifying as an Information Technology Value Added Reseller (ITVAR) under footnote 18 of 13 CFR 121.201, with a 150-employee cap.
Is NAICS 541519 eligible for SDVOSB, 8(a), HUBZone, or WOSB set-asides?: Set-aside programs that commonly apply: SDVOSB, 8(a), HUBZone, WOSB, VOSB. ITVAR exception governs hardware-reseller awards. Pure-services awards use the standard $34M threshold. Common code on GSA Schedule 70 / MAS IT.
Which federal agencies buy under NAICS 541519?: For FY2024 reporting, the leading federal customers under NAICS 541519 were Department of Defense, Department of Veterans Affairs, Department of Homeland Security, General Services Administration, Treasury. Live obligation data is available on USAspending.gov.
What FAR or DFARS clauses commonly apply to NAICS 541519 contracts?: Frequent clause flowdowns include DFARS 252.204-7012 (Safeguarding Covered Defense Information); FAR 52.227-19 (Commercial Computer Software License); FAR 52.219-14 (Limitations on Subcontracting); FAR 52.204-21 (Basic Safeguarding of Covered Contractor Information Systems). 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 541519?: IT services firms run fringe / overhead / G&A. ITVAR pass-through hardware needs material-handling treatment under FAR 31.203 to keep G&A defensible. Watch for distorted G&A rates when reseller volume swings year over year.
How does FieldLedger help small federal contractors in NAICS 541519?: Indirect Rate Engine handles the materials-handling pool ITVAR firms need. DCAA-compliant timekeeping for the services side. Multi-CLIN invoicing for mixed product/service awards.

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 541519
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.