NAICS Code 541380: Testing Laboratories and Services
National industry
SBA small business size standard: $19 million in average annual receipts
Definition
This industry comprises establishments primarily engaged in performing physical, chemical, and other analytical testing services, such as acoustics or vibration testing, assaying, biological testing (except medical and veterinary), calibration testing, electrical and electronic testing, geotechnical testing, mechanical testing, nondestructive testing, or thermal testing. The testing may occur in a laboratory or on-site.
Code facts
- Part of
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54
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541
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5413
- 54138
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5413
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541
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54
- Contract awards
- 1,625 In the last 12 months
- Contract obligations
- $567,059,525 In FY2025
NAICS codes and definitions come from the U.S. Census Bureau, size standards from the SBA and contract spending from SAM.gov/FPDS.
Business activities under NAICS 541380
- Acoustics testing laboratories or services
- Assaying services
- Automobile proving and testing grounds
- Biological (except medical, veterinary) testing laboratories or services
- Calibration and certification testing laboratories or services
- Electrical testing laboratories or services
- Electronic testing laboratories or services
- Environmental testing laboratories or services
- Film badge testing (i.e., radiation testing) laboratories or services
- Fire insurance underwriters' laboratories
- Food testing laboratories or services
- Forensic (except medical) laboratories or services
- Geotechnical testing laboratories or services
- Hydrostatic testing laboratories or services
- Industrial testing laboratories or services
- Laboratory testing (except medical, veterinary) services
- Mechanical testing laboratories or services
- Metallurgical testing laboratories or services
- Non-destructive testing laboratories or services
- Pollution testing (except automotive emissions testing) services
- Product testing laboratories or services
- Radiation dosimetry (i.e., radiation testing) laboratories or services
- Radiation testing laboratories or services
- Radiographic testing laboratories or services
- Radiographing welded joints on pipes and fittings
- Radiography inspection services
- Radon testing laboratories or services
- Seed testing laboratories or services
- Soil testing laboratories or services
- Testing laboratories (except medical, veterinary)
- Thermal testing laboratories or services
- Vibration testing laboratories or services
- X-ray inspection services
Show all 33
Looking for another activity? Search the NAICS code lookup or browse business activities from A to Z.
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $1,795,369 |
| FY2026 | $546,834,977 |
| FY2025 | $567,059,525 |
| FY2024 | $681,485,514 |
| FY2023 | $619,991,018 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Agile Defense, LLC | $46,376,924 | |
| 2 | Raytheon Company | $40,580,938 | |
| 3 | Merrick & Company | $26,668,149 | |
| 4 | Ginkgo Bioworks, Inc. | $24,265,872 | |
| 5 | Transportation Research Center Inc. | $24,074,663 | |
| 6 | Mantech Advanced Systems International, Inc. | $22,073,261 | |
| 7 | Astrion Group, LLC | $21,743,179 | |
| 8 | Emory University | $19,833,873 | |
| 9 | The Bionetics Corp | $17,108,220 | |
| 10 | Infinity Biologix LLC | $15,132,510 |
See the full FY2025 ranking of NAICS 541380 contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Air Force | $116,215,183 | |
| 2 | Department of Health and Human Services | $77,932,444 | |
| 3 | Department of Veterans Affairs | $69,259,595 | |
| 4 | Department of Transportation | $58,721,078 | |
| 5 | Defense Information Systems Agency | $46,376,924 | |
| 6 | Department of Agriculture | $31,598,040 | |
| 7 | National Aeronautics and Space Administration | $28,523,210 | |
| 8 | Environmental Protection Agency | $28,123,956 | |
| 9 | Department of the Army | $25,659,360 | |
| 10 | Department of the Navy | $23,388,214 |
Top PSC codes by obligations
| Rank | PSC code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Q301 Reference Laboratory Testing | $49,416,802 | |
| 2 | AC32 National Defense R&D Services; Defense-Related Activities; Applied Research | $46,376,924 | |
| 3 | B529 Scientific Data Studies | $45,364,509 | |
| 4 |
B504 Chemical/ |
$43,173,282 | |
| 5 | L014 Technical Representation Services: Guided Missiles | $40,580,938 | |
| 6 | B599 Other Special Studies and Analysis | $37,931,762 | |
| 7 | R499 Other Professional Services | $33,229,486 | |
| 8 |
R408 Program Management/ |
$28,740,083 | |
| 9 | AJ12 General Science and Technology R&D Services; General Science and Technology; Applied Research | $22,753,414 | |
| 10 | H266 Equipment and Materials Testing: Instruments and Laboratory Equipment | $21,234,378 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Arizona | $82,194,911 | |
| 2 | Massachusetts | $39,422,509 | |
| 3 | Maryland | $38,191,159 | |
| 4 | Ohio | $37,494,542 | |
| 5 | Florida | $36,253,718 | |
| 6 | District of Columbia | $29,753,555 | |
| 7 | New Jersey | $27,905,400 | |
| 8 | California | $26,999,864 | |
| 9 | Kansas | $24,781,439 | |
| 10 | Illinois | $19,628,557 | |
| 11 | Texas | $18,944,725 | |
| 12 | North Carolina | $17,229,326 | |
| 13 | Virginia | $16,739,568 | |
| 14 | New York | $9,441,188 | |
| 15 | Indiana | $7,187,225 | |
| 16 | Alaska | $6,520,335 | |
| 17 | Colorado | $6,419,264 | |
| 18 | Missouri | $6,052,989 | |
| 19 | Alabama | $5,000,337 | |
| 20 | South Carolina | $4,229,173 | |
| 21 | Michigan | $3,898,000 | |
| 22 | Georgia | $3,776,761 | |
| 23 | Tennessee | $3,590,381 | |
| 24 | Pennsylvania | $3,087,222 | |
| 25 | Oklahoma | $2,730,918 | |
| 26 | Hawaii | $2,081,385 | |
| 27 | Oregon | $1,750,965 | |
| 28 | New Mexico | $1,634,223 | |
| 29 | Kentucky | $1,601,418 | |
| 30 | Wisconsin | $1,540,419 | |
| 31 | Minnesota | $1,315,794 | |
| 32 | Washington | $1,288,157 | |
| 33 | Nevada | $1,158,410 | |
| 34 | Louisiana | $1,130,301 | |
| 35 | Mississippi | $1,080,249 | |
| 36 | Vermont | $1,005,750 | |
| 37 | Puerto Rico | $808,169 | |
| 38 | South Dakota | $635,550 | |
| 39 | Montana | $578,706 | |
| 40 | New Hampshire | $511,489 | |
| 41 | Iowa | $501,085 | |
| 42 | Connecticut | $481,511 | |
| 43 | West Virginia | $440,880 | |
| 44 | Idaho | $422,254 | |
| 45 | Maine | $415,771 | |
| 46 | Utah | $414,706 | |
| 47 | Nebraska | $375,894 | |
| 48 | North Dakota | $313,207 | |
| 49 | Wyoming | $167,673 | |
| 50 | Delaware | $118,921 | |
| 51 | Rhode Island | $115,127 | |
| 52 | U.S. Virgin Islands | $67,104 | |
| 53 | Arkansas | $13,883 |
Show all 53
Shares are of everything obligated under NAICS 541380 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.
Contract opportunities
Show 38 more
Latest 48 of 16,002 listed here. See the rest on GovTribe.
Size standard history
Federal Register rules that named this code
Show all 11
Proposed size standard changes
| Proposed rule | Published | Comments |
|---|---|---|
| Small Business Size Standards: Monetary-Based Industry Size Standards | Closed Oct 21, 2025No final rule found |
From the NAICS codes each rule's amendments to 13 CFR 121.201 name. Rules that print their size standard tables as images aren't listed.
Quick answers
What is NAICS 541380?
NAICS 541380 is Testing Laboratories and Services, a national industry in NAICS 54, Professional, Scientific, and Technical Services.
What is the NAICS code for assaying services?
The NAICS code for assaying services is 541380, Testing Laboratories and Services.
What is the NAICS code for X-ray inspection services?
The NAICS code for X-ray inspection services is 541380, Testing Laboratories and Services.
What is the NAICS code for radiography inspection services?
The NAICS code for radiography inspection services is 541380, Testing Laboratories and Services.
When did the size standard for NAICS 541380 last change?
The most recent Federal Register rule on record that names NAICS 541380 in the SBA's size standards is "Small Business Size Standards: Adjustment of Monetary-Based Size Standards, Disadvantage Thresholds, and 8(a) Eligibility Thresholds for Inflation" (87 FR 69118), published Nov 17, 2022 and effective Dec 19, 2022.
How much do federal agencies spend under NAICS 541380?
Federal contracts under NAICS 541380 obligated $567,059,525 in fiscal year 2025 and $2,417,166,404 in fiscal years 2023 through 2027.
Who are the largest contractors under NAICS 541380?
The contractors with the most obligated under NAICS 541380 in fiscal years 2026 and 2027 are Agile Defense, LLC ($46,376,924); Raytheon Company ($40,580,938); and Merrick & Company ($26,668,149).
Which agencies buy the most under NAICS 541380?
The agencies that obligated the most under NAICS 541380 in fiscal years 2026 and 2027 are Air Force ($116,215,183), Department of Health and Human Services ($77,932,444) and Department of Veterans Affairs ($69,259,595).
Which PSC codes are used with NAICS 541380?
The PSC codes with the most obligated under NAICS 541380 in fiscal years 2026 and 2027 are Q301 Reference Laboratory Testing, AC32 National Defense R&D Services; Defense-Related Activities; Applied Research and B529 Scientific Data Studies.
Where is the work under NAICS 541380 performed?
By place of performance, the states with the most contract obligations under NAICS 541380 over the last 12 months are Arizona ($82,194,911), Massachusetts ($39,422,509) and Maryland ($38,191,159).
What is the latest contract opportunity under NAICS 541380?
The latest contract opportunity under NAICS 541380 is USNS KAISER (T-187 Ultrasonic Gauging Hull Special Survey 8), solicitation from Military Sealift Command (Navy), posted November 6, 2026.
On GovTribe
See everything under NAICS 541380
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