What is the SBA size standard for NAICS 541380?

The SBA size standard for NAICS 541380 (Testing Laboratories) is $19 million in average annual receipts, per 13 C.F.R. § 121.201.

Which federal agencies buy under NAICS 541380?

For FY2024 reporting, the leading federal customers under NAICS 541380 were Department of Defense, Environmental Protection Agency, Department of Energy, Department of Health and Human Services, Department of Homeland Security. Live obligation data is available on USAspending.gov.

What FAR or DFARS clauses commonly apply to NAICS 541380 contracts?

Frequent clause flowdowns include FAR 52.246-2 (Inspection of Supplies — Fixed-Price); FAR 52.227-14 (Rights in Data — General); FAR 52.236-13 (Accident Prevention); FAR 52.219-14 (Limitations on Subcontracting). 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 541380 — Testing Laboratories

Physical, chemical, and biological testing services. Federal use includes DoD materials testing, EPA environmental sampling and analysis, FDA laboratory work, and Department of Energy nuclear materials analysis.

Quick facts

SBA size standard: $19 million; Average annual receipts · 13 C.F.R. § 121.201
FY2024 federal obligations: $500M–$1B; See live USAspending.gov data →

Top federal customers

Federal agencies that obligate the most spending under NAICS 541380 (FY2024 reporting period). Order tracks federal-obligation volume on USAspending.gov.

1.Department of Defense
2.Environmental Protection Agency
3.Department of Energy
4.Department of Health and Human Services
5.Department of Homeland Security

Set-aside fit

Whether NAICS 541380 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)

Lab capacity is capital-intensive, so SDVOSB and 8(a) competition is concentrated among accredited labs. ISO 17025 accreditation often a solicitation requirement.

Frequent prime contractors

Companies that most frequently appear as prime awardees under NAICS 541380 for FY2024. Drawn from USAspending.gov public award records — verify currency at the live link below.

Battelle Memorial Institute
Eurofins Scientific
TestAmerica Laboratories
Pace Analytical Services
SGS North America
Tetra Tech
Leidos
ALS Group
NTS National Technical Systems
Element Materials 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.

FAR 52.246-2Inspection of Supplies — Fixed-Price
Standard inspection clause when test results are deliverables.
FAR 52.227-14Rights in Data — General
Default for laboratory reports and underlying data.
FAR 52.236-13Accident Prevention
Lab work involves hazardous materials and OSHA flowdowns.
FAR 52.219-14Limitations on Subcontracting
Services-based limitation on set-aside awards. Some labs default to manufacturing-side rules; check the solicitation.

Indirect rate considerations

Lab services run fringe / overhead / G&A with overhead loaded for instrument capital recovery. Equipment cost recovery under USACE EP 1110-1-8 applies when working under Corps task orders. Materials-handling treatment for sample reagents and consumables.

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 541380

Equipment costing for instrument capital recovery. Indirect Rate Engine for the multi-pool overhead structure. Signed timekeeping for technician hours coded to sample batches.

DCAA compliance →Indirect Rate Engine →DCAA readiness check →

Frequently asked

What is the SBA size standard for NAICS 541380?: The SBA size standard for NAICS 541380 (Testing Laboratories) is $19 million in average annual receipts, per 13 C.F.R. § 121.201.
Is NAICS 541380 eligible for SDVOSB, 8(a), HUBZone, or WOSB set-asides?: Set-aside programs that commonly apply: SDVOSB, 8(a), HUBZone, WOSB, VOSB. Lab capacity is capital-intensive, so SDVOSB and 8(a) competition is concentrated among accredited labs. ISO 17025 accreditation often a solicitation requirement.
Which federal agencies buy under NAICS 541380?: For FY2024 reporting, the leading federal customers under NAICS 541380 were Department of Defense, Environmental Protection Agency, Department of Energy, Department of Health and Human Services, Department of Homeland Security. Live obligation data is available on USAspending.gov.
What FAR or DFARS clauses commonly apply to NAICS 541380 contracts?: Frequent clause flowdowns include FAR 52.246-2 (Inspection of Supplies — Fixed-Price); FAR 52.227-14 (Rights in Data — General); FAR 52.236-13 (Accident Prevention); FAR 52.219-14 (Limitations on Subcontracting). 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 541380?: Lab services run fringe / overhead / G&A with overhead loaded for instrument capital recovery. Equipment cost recovery under USACE EP 1110-1-8 applies when working under Corps task orders. Materials-handling treatment for sample reagents and consumables.
How does FieldLedger help small federal contractors in NAICS 541380?: Equipment costing for instrument capital recovery. Indirect Rate Engine for the multi-pool overhead structure. Signed timekeeping for technician hours coded to sample batches.

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 541380
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.