Top 92 Contractors in NAICS 334517: Irradiation Apparatus Manufacturing, Aug 2025–Jul 2026
Parent companies by net contract obligations Aug 1, 2025 – Jul 31, 2026 Code page on GovTribe
The latest 12 months. See the newest fiscal year's list: Top Contractors in NAICS 334517: Irradiation Apparatus Manufacturing, FY2025.
The top 10 won 91% of NAICS 334517 contract dollars from August 2025 through July 2026
Ranking facts
- Contract obligations
- $1,118,589,937 Net of deobligations, by contracts coded NAICS 334517
- Contractors
- 95 Parent companies with an obligation
- Largest contractor
- Siemens Corporation $247 million, 21.4% of obligations
- Data as of
Contract actions from FPDS (SAM.gov). How the rankings work · Download all 92 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)
Full ranking
| Rank | Contractor | Net obligations | Share | Trend |
|---|---|---|---|---|
| 1 |
Siemens Corporation
|
$246,559,450 | ||
| 2 |
General Electric Company
|
$188,585,117 | ||
| 3 | $168,531,536 | |||
| 4 | $159,696,206 | |||
| 5 |
Rapiscan Systems Inc.
|
$97,245,711 | ||
| 6 | $94,885,629 | |||
| 7 | $31,853,479 | |||
| 8 | $25,230,672 | |||
| 9 | $21,948,536 | |||
| 10 |
Elekta Holdings U.S. Inc.
|
$19,191,667 | ||
| 11 | $11,026,002 | |||
| 12 |
Osage Nation Energy Services LLC
Top agencies
|
$8,857,359 | ||
| 13 | $8,775,314 | |||
| 14 | $7,082,447 | |||
| 15 | $5,022,264 | |||
| 16 |
Biosensors International Group Ltd.
|
$4,275,898 | ||
| 17 | $3,307,525 | |||
| 18 |
Shimadzu America Inc.
Top agencies
|
$2,433,615 | ||
| 19 | $1,812,925 | |||
| 20 | $1,647,592 | |||
| 21 | $1,254,087 | |||
| 22 |
Raysearch Americas Inc.
Top agencies
|
$1,040,550 | ||
| 23 | $880,800 | |||
| 24 | $769,393 | |||
| 25 |
Bruker AXS LLC
Top agencies
|
$557,998 | ||
| 26 | $551,188 | |||
| 27 | $515,260 | |||
| 28 | $393,000 | |||
| 29 | $361,000 | |||
| 30 | $355,000 | |||
| 31 | $316,750 | |||
| 32 |
Accuray Incorporated
Top agencies
|
$295,000 | ||
| 33 | $290,408 | |||
| 34 | $255,757 | |||
| 35 | $249,916 | |||
| 36 | $247,393 | |||
| 37 |
Precision X-Ray, Inc.
Top agencies
|
$235,735 | ||
| 38 | $145,831 | |||
| 39 |
Kotrack Incorporated
Top agencies
|
$142,635 | ||
| 40 | $125,000 | |||
| 41 |
Logos Imaging LLC
Top agencies
|
$124,586 | ||
| 42 |
Bayer Healthcare LLC
Top agencies
|
$118,568 | ||
| 43 | $113,340 | |||
| 44 |
AGFA-GEVAERT
Top agencies
|
$108,004 | ||
| 45 | $101,362 | |||
| 46 | $100,630 | |||
| 47 | $96,984 | |||
| 48 | $95,472 | |||
| 49 | $94,500 | |||
| 50 |
Aviation Defense Service
Top agencies
|
$87,554 | ||
| 51 |
Linev Systems US Inc.
Top agencies
|
$85,511 | ||
| 52 |
Canon Financial Services Inc.
|
$84,949 | ||
| 53 | $84,864 | |||
| 54 | $80,670 | |||
| 55 |
Hokte LLC
Top agencies
|
$77,703 | ||
| 56 | $76,700 | |||
| 57 |
Glomax, Inc.
Top agencies
|
$75,872 | ||
| 58 |
Point Security Inc
Top agencies
|
$72,917 | ||
| 59 | $66,478 | |||
| 60 |
Gamma Products Inc.
Top agencies
|
$65,707 | ||
| 61 |
Philips North America LLC
Top agencies
|
$65,307 | ||
| 62 | $64,850 | |||
| 63 | $63,926 | |||
| 64 | $58,520 | |||
| 65 |
Z & Z Medical, Inc.
Top agencies
|
$51,800 | ||
| 66 |
B & H International LLC
Top agencies
|
$51,440 | ||
| 67 |
Avmedical LLC
Top agencies
|
$51,011 | ||
| 68 |
Pronova Solutions, LLC
Top agencies
|
$41,600 | ||
| 69 |
Lista Italia SRL
Top agencies
|
$40,004 | ||
| 70 |
Lake Superior X-RAY Inc
Top agencies
|
$37,500 | ||
| 71 |
Novo DR Inc.
Top agencies
|
$34,950 | ||
| 72 |
Antech Diagnostics Inc
Top agencies
|
$33,808 | ||
| 73 |
ASE Direct, Inc.
Top agencies
|
$33,287 | ||
| 74 |
DGA Medical LLC
Top agencies
|
$33,249 | ||
| 75 | $32,638 | |||
| 76 |
Danaher Corporation
Top agencies
|
$27,820 | ||
| 77 |
RAD Source Technologies Inc.
Top agencies
|
$24,788 | ||
| 78 |
Probo Medical LLC
Top agencies
|
$22,500 | ||
| 79 |
Lablogic Systems Inc.
Top agencies
|
$17,020 | ||
| 80 |
Nikon Metrology Inc
Top agencies
|
$16,500 | ||
| 81 | $16,016 | |||
| 82 |
DLA Aerospace LLC
Top agencies
|
$13,800 | ||
| 83 | $13,532 | |||
| 84 |
Ziehm-Orthoscan Inc.
Top agencies
|
$13,464 | ||
| 85 | $13,284 | |||
| 86 |
Sun Nuclear Corp.
Top agencies
|
$11,393 | ||
| 87 |
Henry Schein Practice Solutions Inc.
Top agencies
|
$11,128 | ||
| 88 |
MPM Products, Inc.
Top agencies
|
$10,436 | ||
| 89 |
Stryker Corporation
Top agencies
|
$10,351 | ||
| 90 |
Autoclear LLC
Top agencies
|
$9,778 | ||
| 91 | $7,850 | |||
| 92 |
Mistral Inc
Top agencies
|
$7,435 |
Show 67 more
92 of 95 contractors listed here. See the rest on GovTribe.
How this ranking works
- Source: every contract action FPDS records (as published on SAM.gov) in the period, as GovTribe received it.
- Amounts are net obligations: what was obligated, less what was deobligated. Shares are of $1.15 billion obligated before deobligations, so they never pass 100%.
- Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
- Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
- Rank changes compare with Aug 2024–Jul 2025. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
- Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list.
- Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.
Quick answers
Who were the top 10 NAICS 334517 contractors in Aug 2025–Jul 2026?
1. Siemens Corporation ($247M), 2. General Electric Company ($189M), 3. Koninklijke Philips N.V. ($169M), 4. Leidos Holdings, Inc. ($160M), 5. Rapiscan Systems Inc. ($97.2M), 6. Smiths Detection Inc. ($94.9M), 7. Astrophysics Inc. ($31.9M), 8. Westinghouse Electric Company LLC ($25.2M), 9. Hologic, Inc. ($21.9M), 10. Elekta Holdings U.S. Inc. ($19.2M).
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