Top 99 Contractors in NAICS 334517: Irradiation Apparatus Manufacturing, Jul 2025–Jun 2026

Name: Top 99 Contractors in NAICS 334517: Irradiation Apparatus Manufacturing, Jul 2025–Jun 2026
Creator: GovTribe

Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe

The top 10 won 91% of NAICS 334517 contract dollars from July 2025 through June 2026

Contract obligations: $1,025,709,239 Net of deobligations, by contracts coded NAICS 334517
Contractors: 103 Parent companies with an obligation
Largest contractor: Siemens Corporation $228 million, 21.5% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 99 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Siemens Corporation 2 awardees, including Siemens Medical Solutions Usa, Inc. and Varian Medical Systems, Inc. Top agencies VA (Department of Veterans Affairs) DLA (Defense Logistics Agency) HHS (Department of Health and Human Services)	$228,222,156	21.5%	Rank history: not on the FY2021–FY2023 lists, #1 in FY2024 and #1 in FY2025; unchanged since Jul 2024–Jun 2025.
2	General Electric Company 2 awardees, including GE Precision Healthcare LLC and GE Healthcare Inc. Top agencies VA (Department of Veterans Affairs) DLA (Defense Logistics Agency) DOJ (Department of Justice)	$180,195,866	17.0%	Rank history: #4 in FY2021, #2 in FY2022, #2 in FY2023, #2 in FY2024 and #2 in FY2025; unchanged since Jul 2024–Jun 2025.
3	Leidos Holdings, Inc. 4 awardees, including Leidos, Inc. and Leidos Security Detection & Automation, Inc. Top agencies DHS (Department of Homeland Security) DOS (Department of State)	$159,007,833	15.0%	Rank history: #3 in FY2021, #9 in FY2022, #4 in FY2023, not on the FY2024 list and #6 in FY2025; new, not ranked in Jul 2024–Jun 2025.
4	Philips North America LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) DOJ (Department of Justice)	$153,344,307	14.4%	Rank history: #13 in FY2021, #11 in FY2022, not on the FY2023 list, #4 in FY2024 and #3 in FY2025; down 1 since Jul 2024–Jun 2025.
5	Smiths Detection Inc. 2 awardees Top agencies DHS (Department of Homeland Security)	$89,353,629	8.4%	Rank history: #98 in FY2021, #82 in FY2022, not on the FY2023 list, #3 in FY2024 and #4 in FY2025; down 1 since Jul 2024–Jun 2025.
6	Rapiscan Systems Inc Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) DOS (Department of State)	$58,520,145	5.5%	Rank history: not on the FY2021–FY2023 lists, #9 in FY2024 and #5 in FY2025; down 1 since Jul 2024–Jun 2025.
7	Astrophysics Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) DOJ (Department of Justice)	$31,711,434	3.0%	Rank history: #6 in FY2021, #65 in FY2022, #19 in FY2023, #12 in FY2024 and #8 in FY2025; up 2 since Jul 2024–Jun 2025.
8	Westinghouse Government Services LLC Top agencies DOE (Department of Energy)	$25,230,672	2.4%	Rank history: not on the FY2021–FY2023 lists, #19 in FY2024 and #7 in FY2025; unchanged since Jul 2024–Jun 2025.
9	Elekta Holdings U.S. Inc. Through Elekta Inc. Top agencies VA (Department of Veterans Affairs) USUHS (DOD Uniformed Services University of the Health Sciences)	$19,191,667	1.8%	Rank history: not on the FY2021–FY2023 lists, #93 in FY2024 and #11 in FY2025; up 12 since Jul 2024–Jun 2025.
10	Hologic Sales and Service, LLC Top agencies VA (Department of Veterans Affairs) DLA (Defense Logistics Agency) HHS (Department of Health and Human Services)	$17,963,811	1.7%	Rank history: not on the FY2021–FY2023 lists, #11 in FY2024 and #10 in FY2025; up 2 since Jul 2024–Jun 2025.
11	OEC Medical Systems, Inc. Top agencies VA (Department of Veterans Affairs)	$10,242,127	1.0%	Rank history: not on the FY2021–FY2023 lists, #10 in FY2024 and #9 in FY2025; down 1 since Jul 2024–Jun 2025.
12	Osage Nation Energy Services LLC Top agencies HHS (Department of Health and Human Services)	$8,857,359	0.8%	Rank history: not on the FY2021–FY2024 lists and #12 in FY2025; new, not ranked in Jul 2024–Jun 2025.
13	BK Medical Holding Company, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$8,378,915	0.8%	Rank history: not on the FY2021 list, #14 in FY2022, #45 in FY2023, #26 in FY2024 and #14 in FY2025; up 2 since Jul 2024–Jun 2025.
14	Fujifilm Healthcare Americas Corp Top agencies VA (Department of Veterans Affairs)	$4,937,764	0.5%	Rank history: not on the FY2021–FY2023 lists, #14 in FY2024 and #19 in FY2025; up 9 since Jul 2024–Jun 2025.
15	Biosensors International Group Ltd. Through Spectrum Dynamics Medical, Inc. Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs)	$4,412,555	0.4%	Rank history: not on the FY2021–FY2022 lists, #17 in FY2023, #27 in FY2024 and #20 in FY2025; up 12 since Jul 2024–Jun 2025.
16	J.L Shepherd and Associates, Inc. Top agencies USDA (Department of Agriculture) USAF (Department of the Air Force)	$3,721,586	0.4%	Rank history: #16 in FY2021, #17 in FY2022, #25 in FY2023, #76 in FY2024 and #35 in FY2025; up 21 since Jul 2024–Jun 2025.
17	Viken Detection Corporation Top agencies DOS (Department of State) DOJ (Department of Justice)	$2,371,725	0.2%	Rank history: #11 in FY2021, #71 in FY2022, #67 in FY2023, #67 in FY2024 and #21 in FY2025; up 47 since Jul 2024–Jun 2025.
18	V.j. Technologies, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$1,812,925	0.2%	Rank history: #24 in FY2021, #16 in FY2022, #16 in FY2023, #29 in FY2024 and #15 in FY2025; down 2 since Jul 2024–Jun 2025.
19	Shimadzu America Inc. Through Shimadzu Precision Instruments, Inc. Top agencies VA (Department of Veterans Affairs)	$1,688,906	0.2%	Rank history: not on the FY2021–FY2023 lists, #21 in FY2024 and #29 in FY2025; down 2 since Jul 2024–Jun 2025.
20	Del Medical, Inc. Top agencies VA (Department of Veterans Affairs) DLA (Defense Logistics Agency)	$1,647,592	0.2%	Rank history: not on the FY2021–FY2024 lists and #30 in FY2025; up 14 since Jul 2024–Jun 2025.
21	Illinois Tool Works Inc. 2 awardees, including North Star Imaging Incorporated and QSA Global Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$1,522,670	0.1%	Rank history: #54 in FY2021, #24 in FY2022, #11 in FY2023, #22 in FY2024 and #18 in FY2025; down 1 since Jul 2024–Jun 2025.
22	Hadland Imaging LLC Top agencies USAF (Department of the Air Force)	$1,497,296	0.1%	Rank history: not on the FY2021–FY2023 lists, #15 in FY2024 and #16 in FY2025; down 9 since Jul 2024–Jun 2025.
23	Varian Medical Systems, Inc. Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$1,071,714	0.1%	Rank history: #10 in FY2021, #55 in FY2022, #36 in FY2023, #25 in FY2024 and #27 in FY2025; up 6 since Jul 2024–Jun 2025.
24	L3Harris Technologies, Inc. Through Fisica Applied Technologies, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$1,067,864	0.1%	Rank history: #23 in FY2021, #31 in FY2022, #24 in FY2023, #17 in FY2024 and #24 in FY2025; unchanged since Jul 2024–Jun 2025.
25	Hopewell Designs, Inc. Top agencies Navy (Department of the Navy) USUHS (DOD Uniformed Services University of the Health Sciences) Commerce (Department of Commerce)	$880,800	0.1%	Rank history: #14 in FY2021, #15 in FY2022, #30 in FY2023, #23 in FY2024 and #28 in FY2025; up 3 since Jul 2024–Jun 2025.
26	Airbus DS Military Aircraft Inc. Through Dornier Medtech America, Inc. Top agencies VA (Department of Veterans Affairs)	$865,038	0.1%	Rank history: not on the FY2021–FY2022 lists, #44 in FY2023, #30 in FY2024 and #26 in FY2025; up 10 since Jul 2024–Jun 2025.
27	Franklin Young International, Incorporated Top agencies VA (Department of Veterans Affairs)	$769,393	0.1%	Rank history: not on the FY2021 list, #21 in FY2022, not on the FY2023–FY2024 lists and #31 in FY2025; new, not ranked in Jul 2024–Jun 2025.
28	Bruker AXS LLC Top agencies Army (Department of the Army)	$557,998	0.1%	Rank history: not on the FY2021–FY2024 lists and #32 in FY2025; new, not ranked in Jul 2024–Jun 2025.
29	L1 Enterprises Incorporated Top agencies VA (Department of Veterans Affairs)	$393,000	<0.1%	Rank history: not on the FY2021 list, #75 in FY2022, #49 in FY2023, not on the FY2024 list and #38 in FY2025; new, not ranked in Jul 2024–Jun 2025.
30	1ST American Medical Distributors, Inc. Top agencies VA (Department of Veterans Affairs)	$372,010	<0.1%	Rank history: #32 in FY2021, #34 in FY2022, #78 in FY2023, not on the FY2024 list and #76 in FY2025; new, not ranked in Jul 2024–Jun 2025.
31	Atlantic Diving Supply, Inc. Top agencies USAF (Department of the Air Force)	$355,000	<0.1%	Rank history: not on the FY2021–FY2023 lists, #41 in FY2024 and #41 in FY2025; up 2 since Jul 2024–Jun 2025.
32	Varex Imaging Corp Top agencies Navy (Department of the Navy) Army (Department of the Army)	$316,890	<0.1%	Rank history: #39 in FY2021, #40 in FY2022, #31 in FY2023, #37 in FY2024 and #42 in FY2025; up 11 since Jul 2024–Jun 2025.
33	Kodex, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$316,750	<0.1%	Rank history: #43 in FY2021, #53 in FY2022, #98 in FY2023, not on the FY2024 list and #37 in FY2025; up 23 since Jul 2024–Jun 2025.
34	Sirtex Medical Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$305,994	<0.1%	Rank history: not on the FY2021–FY2024 lists and #59 in FY2025; new, not ranked in Jul 2024–Jun 2025.
35	Accuray Incorporated Top agencies VA (Department of Veterans Affairs)	$295,000	<0.1%	Rank history: #40 in FY2021, #37 in FY2022, #33 in FY2023, #38 in FY2024 and #17 in FY2025; down 17 since Jul 2024–Jun 2025.
36	DNI Mission Services LLC Top agencies HHS (Department of Health and Human Services)	$290,408	<0.1%	Rank history: not on the FY2021–FY2024 lists and #49 in FY2025; new, not ranked in Jul 2024–Jun 2025.
37	RAD Source Technologies Inc. Top agencies DHA (Defense Health Agency)	$275,200	<0.1%	Rank history: not on the FY2021–FY2023 lists, #51 in FY2024 and #36 in FY2025; up 12 since Jul 2024–Jun 2025.
38	Trillamed LLC Top agencies USDA (Department of Agriculture) VA (Department of Veterans Affairs)	$255,757	<0.1%	Rank history: #36 in FY2021, #32 in FY2022, #32 in FY2023, #73 in FY2024 and #44 in FY2025; up 16 since Jul 2024–Jun 2025.
39	Ramsey Electronics, LLC Top agencies DHS (Department of Homeland Security)	$249,916	<0.1%	Rank history: not on the FY2021–FY2024 lists and #45 in FY2025; new, not ranked in Jul 2024–Jun 2025.
40	Precision X-Ray, Inc. Top agencies VA (Department of Veterans Affairs)	$235,735	<0.1%	Rank history: #25 in FY2021, #45 in FY2022, not on the FY2023–FY2024 lists and #63 in FY2025; up 30 since Jul 2024–Jun 2025.
41	KUB Technologies Inc. Top agencies VA (Department of Veterans Affairs)	$169,500	<0.1%	Rank history: #84 in FY2021, #27 in FY2022, #47 in FY2023, #47 in FY2024 and #47 in FY2025; down 3 since Jul 2024–Jun 2025.
42	Raysearch Americas Inc. Top agencies VA (Department of Veterans Affairs)	$163,242	<0.1%	Rank history: not on the FY2021–FY2023 lists, #32 in FY2024 and #23 in FY2025; down 20 since Jul 2024–Jun 2025.
43	Four Points Technology, L.L.C. Top agencies VA (Department of Veterans Affairs)	$145,831	<0.1%	Rank history: #61 in FY2021, #51 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
44	Kotrack Incorporated Top agencies Army (Department of the Army)	$142,635	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
45	Advanced Critical Devices, Inc. Top agencies VA (Department of Veterans Affairs)	$125,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #55 in FY2025; new, not ranked in Jul 2024–Jun 2025.
46	Logos Imaging LLC Top agencies DOJ (Department of Justice)	$124,586	<0.1%	Rank history: not on the FY2021–FY2024 lists and #56 in FY2025; new, not ranked in Jul 2024–Jun 2025.
47	Bayer Healthcare LLC Top agencies VA (Department of Veterans Affairs)	$118,568	<0.1%	Rank history: not on the FY2021–FY2023 lists, #91 in FY2024 and #33 in FY2025; down 5 since Jul 2024–Jun 2025.
48	Red Heritage Medical LLC Top agencies HHS (Department of Health and Human Services)	$113,340	<0.1%	Rank history: not on the FY2021–FY2022 lists, #34 in FY2023, not on the FY2024 list and #57 in FY2025; up 15 since Jul 2024–Jun 2025.
49	AGFA-GEVAERT Through Agfa US Corp Top agencies VA (Department of Veterans Affairs)	$108,004	<0.1%	Rank history: not on the FY2021–FY2023 lists, #58 in FY2024 and #50 in FY2025; up 3 since Jul 2024–Jun 2025.
50	Sharplogixx, LLC Top agencies DOJ (Department of Justice) Navy (Department of the Navy)	$102,183	<0.1%	Rank history: not on the FY2021 list, #67 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
51	Lovell Government Services Inc. Top agencies VA (Department of Veterans Affairs)	$101,362	<0.1%	Rank history: not on the FY2021–FY2023 lists, #56 in FY2024 and not on the FY2025 list; unchanged since Jul 2024–Jun 2025.
52	Brainlab Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$100,630	<0.1%	Rank history: #31 in FY2021, #19 in FY2022, #43 in FY2023, #34 in FY2024 and #25 in FY2025; down 27 since Jul 2024–Jun 2025.
53	Contemporary Product Solutions, Inc. Top agencies VA (Department of Veterans Affairs)	$95,472	<0.1%	Rank history: not on the FY2021 list, #95 in FY2022, not on the FY2023–FY2024 lists and #60 in FY2025; new, not ranked in Jul 2024–Jun 2025.
54	Marietta Nondestructive Testing LLC Top agencies Navy (Department of the Navy)	$94,500	<0.1%	Rank history: #52 in FY2021, not on the FY2022 list, #29 in FY2023, not on the FY2024 list and #13 in FY2025; down 40 since Jul 2024–Jun 2025.
55	Atlantium Technologies Ltd Top agencies DOI (Department of the Interior)	$94,435	<0.1%	Rank history: #21 in FY2021, not on the FY2022–FY2024 lists and #61 in FY2025; new, not ranked in Jul 2024–Jun 2025.
56	Avmedical LLC Top agencies VA (Department of Veterans Affairs)	$90,439	<0.1%	Rank history: not on the FY2021–FY2024 lists and #54 in FY2025; up 13 since Jul 2024–Jun 2025.
57	Linev Systems US Inc. Top agencies USDA (Department of Agriculture)	$85,511	<0.1%	Rank history: #63 in FY2021, #60 in FY2022, not on the FY2023–FY2024 lists and #34 in FY2025; down 22 since Jul 2024–Jun 2025.
58	Canon Medical Systems USA Inc Top agencies HHS (Department of Health and Human Services) DLA (Defense Logistics Agency)	$84,949	<0.1%	Rank history: not on the FY2021–FY2023 lists, #69 in FY2024 and #70 in FY2025; up 19 since Jul 2024–Jun 2025.
59	Technical Services Group, Inc. Top agencies USAF (Department of the Air Force)	$84,864	<0.1%	Rank history: not on the FY2021–FY2024 lists and #90 in FY2025; up 33 since Jul 2024–Jun 2025.
60	Hokte LLC Top agencies HHS (Department of Health and Human Services)	$77,703	<0.1%	Rank history: not on the FY2021–FY2022 lists, #100 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
61	Excel Imaging Solutions, LLC Top agencies VA (Department of Veterans Affairs)	$76,700	<0.1%	Rank history: #78 in FY2021, #62 in FY2022, #69 in FY2023, #59 in FY2024 and #64 in FY2025; down 6 since Jul 2024–Jun 2025.
62	Glomax, Inc. Top agencies VA (Department of Veterans Affairs)	$75,872	<0.1%	Rank history: not on the FY2021 list, #74 in FY2022, #75 in FY2023, #74 in FY2024 and #68 in FY2025; up 13 since Jul 2024–Jun 2025.
63	Point Security Inc Top agencies DOT (Department of Transportation)	$72,917	<0.1%	Rank history: #71 in FY2021, not on the FY2022 list, #55 in FY2023, #31 in FY2024 and #58 in FY2025; down 33 since Jul 2024–Jun 2025.
64	Alko Enterprises Inc. Top agencies HHS (Department of Health and Human Services)	$72,399	<0.1%	Rank history: not on the FY2021 list, #72 in FY2022, #27 in FY2023, #18 in FY2024 and #48 in FY2025; down 45 since Jul 2024–Jun 2025.
65	Foss Therapy Services, Inc. Top agencies USDA (Department of Agriculture)	$72,324	<0.1%	Rank history: not on the FY2021 list, #20 in FY2022, #35 in FY2023, #46 in FY2024 and #66 in FY2025; down 19 since Jul 2024–Jun 2025.
66	Gamma Products Inc. Top agencies EPA (Environmental Protection Agency)	$65,707	<0.1%	Rank history: #82 in FY2021, #86 in FY2022, #90 in FY2023, #53 in FY2024 and #69 in FY2025; up 2 since Jul 2024–Jun 2025.
67	Koninklijke Philips N.V. Through Philips Healthcare Informatics Inc. Top agencies HHS (Department of Health and Human Services)	$65,307	<0.1%	Rank history: #5 in FY2021, #3 in FY2022, #3 in FY2023, #5 in FY2024 and #46 in FY2025; down 26 since Jul 2024–Jun 2025.
68	C&C Irradiator Service, LLC Top agencies HHS (Department of Health and Human Services)	$64,850	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
69	Native Diagnostic Imaging LLC Top agencies HHS (Department of Health and Human Services)	$58,520	<0.1%	Rank history: not on the FY2021–FY2022 lists, #41 in FY2023, #43 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
70	Z & Z Medical, Inc. Top agencies VA (Department of Veterans Affairs)	$51,800	<0.1%	Rank history: not on the FY2021–FY2022 lists, #83 in FY2023, not on the FY2024 list and #72 in FY2025; new, not ranked in Jul 2024–Jun 2025.
71	B & H International LLC Top agencies Navy (Department of the Navy)	$51,440	<0.1%	Rank history: not on the FY2021–FY2024 lists and #73 in FY2025; new, not ranked in Jul 2024–Jun 2025.
72	SC Medical Overseas Inc. Top agencies VA (Department of Veterans Affairs)	$49,785	<0.1%	Rank history: not on the FY2021–FY2024 lists and #74 in FY2025; new, not ranked in Jul 2024–Jun 2025.
73	Lista Italia SRL Top agencies USAF (Department of the Air Force)	$40,004	<0.1%	Rank history: not on the FY2021–FY2024 lists and #77 in FY2025; new, not ranked in Jul 2024–Jun 2025.
74	Riverain Technologies, Inc. Top agencies VA (Department of Veterans Affairs)	$37,532	<0.1%	Rank history: #20 in FY2021, #78 in FY2022, #13 in FY2023, #28 in FY2024 and #22 in FY2025; down 48 since Jul 2024–Jun 2025.
75	Lake Superior X-RAY Inc Top agencies USDA (Department of Agriculture)	$37,500	<0.1%	Rank history: not on the FY2021–FY2024 lists and #78 in FY2025; new, not ranked in Jul 2024–Jun 2025.
76	Novo DR Inc. Top agencies USAF (Department of the Air Force)	$34,950	<0.1%	Rank history: not on the FY2021 list, #28 in FY2022, #18 in FY2023, not on the FY2024 list and #80 in FY2025; new, not ranked in Jul 2024–Jun 2025.
77	GOV Source LLC Top agencies Army (Department of the Army)	$34,040	<0.1%	Rank history: not on the FY2021–FY2024 lists and #81 in FY2025; new, not ranked in Jul 2024–Jun 2025.
78	VCA Animal Hospitals Inc. Through Antech Diagnostics, Inc. Top agencies DHS (Department of Homeland Security)	$33,808	<0.1%	Rank history: not on the FY2021–FY2024 lists and #82 in FY2025; new, not ranked in Jul 2024–Jun 2025.
79	ASE Direct, Inc. Top agencies VA (Department of Veterans Affairs)	$33,287	<0.1%	Rank history: #69 in FY2021, #49 in FY2022, not on the FY2023 list, #61 in FY2024 and #83 in FY2025; down 12 since Jul 2024–Jun 2025.
80	DGA Medical LLC Top agencies VA (Department of Veterans Affairs)	$33,249	<0.1%	Rank history: #46 in FY2021, #39 in FY2022, #38 in FY2023, #48 in FY2024 and #75 in FY2025; down 18 since Jul 2024–Jun 2025.
81	Mercy Medical Equipment Company Top agencies VA (Department of Veterans Affairs)	$32,638	<0.1%	Rank history: not on the FY2021–FY2024 lists and #84 in FY2025; new, not ranked in Jul 2024–Jun 2025.
82	Supertech Inc. Top agencies VA (Department of Veterans Affairs)	$24,989	<0.1%	Rank history: not on the FY2021–FY2024 lists and #86 in FY2025; new, not ranked in Jul 2024–Jun 2025.
83	Radiation Detection Company Top agencies VA (Department of Veterans Affairs)	$24,456	<0.1%	Rank history: not on the FY2021–FY2024 lists and #88 in FY2025; up 5 since Jul 2024–Jun 2025.
84	Test Equipment Distributors LLC Top agencies USAF (Department of the Air Force)	$24,148	<0.1%	Rank history: not on the FY2021–FY2023 lists, #50 in FY2024 and #39 in FY2025; down 44 since Jul 2024–Jun 2025.
85	Probo Medical LLC Top agencies VA (Department of Veterans Affairs)	$22,500	<0.1%	Rank history: not on the FY2021–FY2024 lists and #93 in FY2025; up 11 since Jul 2024–Jun 2025.
86	U.s. Testing Equipment, Limited Top agencies USDA (Department of Agriculture)	$18,978	<0.1%	Rank history: not on the FY2021–FY2024 lists and #94 in FY2025; new, not ranked in Jul 2024–Jun 2025.
87	Lablogic Systems Inc. Top agencies VA (Department of Veterans Affairs)	$17,020	<0.1%	Rank history: not on the FY2021–FY2024 lists and #97 in FY2025; new, not ranked in Jul 2024–Jun 2025.
88	Nikon Americas Inc. Through Nikon Metrology, LLC Top agencies Navy (Department of the Navy)	$16,500	<0.1%	Rank history: not on the FY2021–FY2024 lists and #98 in FY2025; down 3 since Jul 2024–Jun 2025.
89	DLA Aerospace LLC Top agencies DLA (Defense Logistics Agency)	$13,800	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
90	Ziehm-Orthoscan Inc. Top agencies VA (Department of Veterans Affairs)	$13,464	<0.1%	Rank history: not on the FY2021–FY2023 lists, #84 in FY2024 and not on the FY2025 list; down 10 since Jul 2024–Jun 2025.
91	Trafalgar Business Solutions, LLC Top agencies HHS (Department of Health and Human Services)	$13,284	<0.1%	Rank history: not on the FY2021–FY2023 lists, #40 in FY2024 and not on the FY2025 list; up 13 since Jul 2024–Jun 2025.
92	Creative Electron Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force)	$11,650	<0.1%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2023, #52 in FY2024 and not on the FY2025 list; up 17 since Jul 2024–Jun 2025.
93	Mirion Technologies (CAPINTEC) Inc. Through Sun Nuclear Corp. Top agencies VA (Department of Veterans Affairs)	$11,393	<0.1%	Rank history: not on the FY2021–FY2023 lists, #66 in FY2024 and #40 in FY2025; down 54 since Jul 2024–Jun 2025.
94	Henry Schein Inc. Through Henry Schein Practice Solutions Inc. Top agencies HHS (Department of Health and Human Services)	$11,128	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 12 since Jul 2024–Jun 2025.
95	MPM Products, Inc. Top agencies Navy (Department of the Navy)	$10,436	<0.1%	Rank history: not on the FY2021–FY2022 lists, #37 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
96	Stryker Sales, LLC Top agencies VA (Department of Veterans Affairs)	$10,351	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 11 since Jul 2024–Jun 2025.
97	Autoclear LLC Top agencies USAF (Department of the Air Force)	$9,778	<0.1%	Rank history: not on the FY2021–FY2023 lists, #75 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
98	Hologic, Inc. Top agencies VA (Department of Veterans Affairs)	$9,265	<0.1%	Rank history: #9 in FY2021, #5 in FY2022, #8 in FY2023, #24 in FY2024 and #91 in FY2025; down 16 since Jul 2024–Jun 2025.
99	Amada America Inc. Top agencies Navy (Department of the Navy)	$3,413	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.

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99 of 103 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 $1.06 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. 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 Jul 2024–Jun 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 Jul 2025–Jun 2026?

1. Siemens Corporation ($228M), 2. General Electric Company ($180M), 3. Leidos Holdings, Inc. ($159M), 4. Philips North America LLC ($153M), 5. Smiths Detection Inc. ($89.4M), 6. Rapiscan Systems Inc ($58.5M), 7. Astrophysics Inc. ($31.7M), 8. Westinghouse Government Services LLC ($25.2M), 9. Elekta Holdings U.S. Inc. ($19.2M), 10. Hologic Sales and Service, LLC ($18M).

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