NAICS Code 334517: Irradiation Apparatus Manufacturing
National industry
SBA small business size standard: 1,200 employees
Definition
This U.S. industry comprises establishments primarily engaged in manufacturing irradiation apparatus and tubes for applications, such as medical diagnostic, medical therapeutic, industrial, research, and scientific evaluation. Irradiation can take the form of beta-rays, gamma-rays, X-rays, or other ionizing radiation.
Government contracts for this product: PSC 6525 X-Ray Equipment and Supplies: Medical, Dental, Veterinary
Code facts
- Part of
-
-
31-33
-
334
-
3345
- 33451
-
3345
-
334
-
31-33
- Contract awards
- 967 In the last 12 months
- Contract obligations
- $852,966,930 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 334517
- Beta-ray irradiation equipment manufacturing
- Computerized axial tomography (CT/CAT) scanners manufacturing
- CT/CAT (computerized axial tomography) scanners manufacturing
- Fluoroscopes manufacturing
- Fluoroscopic X-ray apparatus and tubes manufacturing
- Gamma ray irradiation equipment manufacturing
- Generators, X-ray, manufacturing
- Irradiation apparatus and tubes (e.g., industrial, medical diagnostic, medical therapeutic, research, scientific), manufacturing
- Irradiation equipment manufacturing
- Lamps, X-ray, manufacturing
- Medical radiation therapy equipment manufacturing
- Nuclear irradiation equipment manufacturing
- Radium equipment manufacturing
- Therapeutic X-ray apparatus and tubes (e.g., medical, industrial, research) manufacturing
- Tubes, X-ray, manufacturing
- X-ray apparatus and tubes (e.g., control, industrial, medical, research) manufacturing
- X-ray generators manufacturing
- X-ray irradiation equipment manufacturing
- X-ray tubes manufacturing
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 | $27,383,223 |
| FY2026 | $1,094,057,819 |
| FY2025 | $852,966,930 |
| FY2024 | $892,285,995 |
| FY2023 | $772,456,419 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Siemens Medical Solutions Usa, Inc. | $242,088,463 | |
| 2 | GE Precision Healthcare LLC | $210,455,835 | |
| 3 | Philips North America LLC | $163,007,782 | |
| 4 | Rapiscan Systems Inc. | $85,771,326 | |
| 5 | Smiths Detection Inc. | $75,546,301 | |
| 6 | Leidos, Inc. | $58,386,827 | |
| 7 | Astrophysics Inc. | $50,935,297 | |
| 8 | Leidos, Inc. | $50,476,014 | |
| 9 | Leidos, Inc. | $44,163,008 | |
| 10 | Westinghouse Government Services LLC | $25,230,672 |
See the full FY2025 ranking of NAICS 334517 contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of Veterans Affairs | $614,252,012 | |
| 2 | Department of Homeland Security | $369,048,595 | |
| 3 | Defense Logistics Agency | $90,354,316 | |
| 4 | Department of Energy | $25,230,672 | |
| 5 | Department of Agriculture | $9,888,546 | |
| 6 | Department of Justice | $2,922,428 | |
| 7 | Air Force | $2,367,343 | |
| 8 | Department of the Navy | $1,950,428 | |
| 9 | Department of Health and Human Services | $1,643,477 | |
| 10 | Department of State | $1,485,532 |
Top PSC codes by obligations
| Rank | PSC code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 6525 X-Ray Equipment and Supplies: Medical, Dental, Veterinary | $514,212,243 | |
| 2 | 6665 Hazard-Detecting Instruments and Apparatus | $214,576,965 | |
| 3 | J065 Maintenance, Repair and Rebuilding of Equipment: Medical, Dental, and Veterinary Equipment and Supplies | $185,235,563 | |
| 4 | 6350 Miscellaneous Alarm, Signal, and Security Detection Systems | $146,737,912 | |
| 5 | 4470 Nuclear Reactors | $25,230,672 | |
| 6 | 6635 Physical Properties Testing and Inspection | $10,312,830 | |
| 7 | 6640 Laboratory Equipment and Supplies | $9,143,258 | |
| 8 | 6515 Medical and Surgical Instruments, Equipment, and Supplies | $6,681,837 | |
| 9 | J035 Maintenance, Repair and Rebuilding of Equipment: Service and Trade Equipment | $2,456,850 | |
| 10 | J059 Maintenance, Repair and Rebuilding of Equipment: Electrical and Electronic Equipment Components | $1,883,752 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | California | $203,716,923 | |
| 2 | Pennsylvania | $197,229,836 | |
| 3 | Wisconsin | $139,766,944 | |
| 4 | Virginia | $131,883,312 | |
| 5 | Washington | $114,063,593 | |
| 6 | Texas | $50,641,567 | |
| 7 | Florida | $32,718,066 | |
| 8 | Massachusetts | $32,672,791 | |
| 9 | Maryland | $13,431,112 | |
| 10 | Utah | $12,881,237 | |
| 11 | Ohio | $8,295,500 | |
| 12 | Minnesota | $6,462,001 | |
| 13 | New York | $6,307,152 | |
| 14 | Arizona | $5,771,646 | |
| 15 | Georgia | $5,624,720 | |
| 16 | Tennessee | $5,038,006 | |
| 17 | North Carolina | $4,747,687 | |
| 18 | Michigan | $4,190,778 | |
| 19 | Missouri | $4,113,946 | |
| 20 | Illinois | $3,329,078 | |
| 21 | Oklahoma | $2,524,154 | |
| 22 | Nevada | $2,261,939 | |
| 23 | Colorado | $2,100,601 | |
| 24 | District of Columbia | $2,043,788 | |
| 25 | Oregon | $1,731,288 | |
| 26 | Indiana | $1,392,171 | |
| 27 | Arkansas | $1,370,806 | |
| 28 | South Carolina | $1,011,755 | |
| 29 | Louisiana | $857,050 | |
| 30 | Alabama | $792,851 | |
| 31 | Hawaii | $704,801 | |
| 32 | Wyoming | $687,232 | |
| 33 | Connecticut | $600,235 | |
| 34 | Idaho | $557,587 | |
| 35 | Kentucky | $547,792 | |
| 36 | Montana | $462,764 | |
| 37 | Delaware | $389,197 | |
| 38 | South Dakota | $355,000 | |
| 39 | West Virginia | $337,371 | |
| 40 | Kansas | $259,015 | |
| 41 | New Jersey | $217,753 | |
| 42 | Iowa | $174,154 | |
| 43 | New Mexico | $165,593 | |
| 44 | Maine | $100,127 | |
| 45 | Vermont | $45,925 | |
| 46 | Mississippi | $36,736 |
Show all 46
Shares are of everything obligated under NAICS 334517 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.
Contract opportunities
Show 35 more
Latest 45 of 4,203 listed here. See the rest on GovTribe.
Size standard history
Federal Register rules that named this code
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 334517?
NAICS 334517 is Irradiation Apparatus Manufacturing, a national industry in NAICS 31-33, Manufacturing.
What is the NAICS code for X-ray tubes manufacturing?
The NAICS code for X-ray tubes manufacturing is 334517, Irradiation Apparatus Manufacturing.
What is the NAICS code for fluoroscopes manufacturing?
The NAICS code for fluoroscopes manufacturing is 334517, Irradiation Apparatus Manufacturing.
What is the NAICS code for radium equipment manufacturing?
The NAICS code for radium equipment manufacturing is 334517, Irradiation Apparatus Manufacturing.
When did the size standard for NAICS 334517 last change?
The most recent Federal Register rule on record that names NAICS 334517 in the SBA's size standards is "Small Business Size Standards: Manufacturing and Industries With Employee-Based Size Standards in Other Sectors Except Wholesale Trade and Retail Trade" (88 FR 9970), published Feb 15, 2023 and effective Mar 17, 2023.
How much do federal agencies spend under NAICS 334517?
Federal contracts under NAICS 334517 obligated $852,966,930 in fiscal year 2025 and $3,639,150,387 in fiscal years 2023 through 2027.
Who are the largest contractors under NAICS 334517?
The contractors with the most obligated under NAICS 334517 in fiscal years 2026 and 2027 are Siemens Medical Solutions Usa, Inc. ($242,088,463); GE Precision Healthcare LLC ($210,455,835); and Philips North America LLC ($163,007,782).
Which agencies buy the most under NAICS 334517?
The agencies that obligated the most under NAICS 334517 in fiscal years 2026 and 2027 are Department of Veterans Affairs ($614,252,012), Department of Homeland Security ($369,048,595) and Defense Logistics Agency ($90,354,316).
Which PSC codes are used with NAICS 334517?
The PSC codes with the most obligated under NAICS 334517 in fiscal years 2026 and 2027 are 6525 X-Ray Equipment and Supplies: Medical, Dental, Veterinary; 6665 Hazard-Detecting Instruments and Apparatus; and J065 Maintenance, Repair and Rebuilding of Equipment: Medical, Dental, and Veterinary Equipment and Supplies.
Where is the work under NAICS 334517 performed?
By place of performance, the states with the most contract obligations under NAICS 334517 over the last 12 months are California ($203,716,923), Pennsylvania ($197,229,836) and Wisconsin ($139,766,944).
What is the latest contract opportunity under NAICS 334517?
The latest contract opportunity under NAICS 334517 is 6515--Thyroid Uptake System in Support of the Iowa City VA Healthcare System, Iowa City, IA. 100% Set-Aside for SDVOSBs, solicitation from Veterans Integrated Service Network 23 (VHA), posted November 5, 2026.
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