Top 100 Contractors in NAICS 334517: Irradiation Apparatus Manufacturing, FY2022

Name: Top 100 Contractors in NAICS 334517: Irradiation Apparatus Manufacturing, FY2022
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2021 – Sep 30, 2022 Code page on GovTribe

The top 10 won 90% of FY2022 NAICS 334517 contract dollars

Contract obligations: $701,589,286 Net of deobligations, by contracts coded NAICS 334517
Contractors: 125 Parent companies with an obligation
Largest contractor: Siemens Aktiengesellschaft $246 million, 33.3% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Siemens Aktiengesellschaft 3 awardees, including Siemens Medical Solutions Usa, Inc. and Varian Medical Systems, Inc. Top agencies VA (Department of Veterans Affairs) DLA (Defense Logistics Agency) DHA (Defense Health Agency)	$246,054,073	33.3%	Rank history: #2 in FY2021, #1 in FY2023, #7 in FY2024 and not on the FY2025 list; up 1 since FY2021.
2	General Electric Company 5 awardees, including OEC Medical Systems, Inc., BK Medical Holding Company, Inc. and GE Medical Systems Information Technologies, Inc. Top agencies VA (Department of Veterans Affairs) DLA (Defense Logistics Agency) DOJ (Department of Justice)	$180,134,878	24.4%	Rank history: #4 in FY2021, #2 in FY2023, #2 in FY2024 and #2 in FY2025; up 2 since FY2021.
3	Koninklijke Philips N.V. 4 awardees, including Philips North America LLC, Philips Medical Systems North America Inc. and Philips Healthcare Informatics Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) Army (Department of the Army)	$102,990,866	13.9%	Rank history: #5 in FY2021, #3 in FY2023, #5 in FY2024 and #46 in FY2025; up 2 since FY2021.
4	Smiths Group PLC 2 awardees, including Smiths Detection Inc. Top agencies DHS (Department of Homeland Security)	$42,035,757	5.7%	Rank history: #7 in FY2021, #7 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
5	Hologic, Inc. 3 awardees Top agencies VA (Department of Veterans Affairs) DLA (Defense Logistics Agency) Army (Department of the Army)	$27,973,682	3.8%	Rank history: #9 in FY2021, #8 in FY2023, #24 in FY2024 and #91 in FY2025; up 4 since FY2021.
6	Westinghouse Electric Company LLC Through Westinghouse Government Services LLC Top agencies DOE (Department of Energy)	$21,946,768	3.0%	Rank history: #8 in FY2021, #9 in FY2023, #13 in FY2024 and not on the FY2025 list; up 2 since FY2021.
7	Viewray, Inc. Top agencies VA (Department of Veterans Affairs)	$14,626,207	2.0%	Rank history: not on the FY2021 list, #10 in FY2023 and not on the FY2024–FY2025 lists; new.
8	OSI Systems Inc. 3 awardees, including Rapiscan Systems Inc. and American Science & Engineering Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) Army (Department of the Army)	$14,588,132	2.0%	Rank history: #1 in FY2021, #6 in FY2023, #20 in FY2024 and not on the FY2025 list; down 7 since FY2021.
9	Leidos Holdings, Inc. 6 awardees, including Leidos Security Detection & Automation, Inc., Leidos, Inc. and Reveal Imaging Technologies, Inc. Top agencies DHS (Department of Homeland Security) DOS (Department of State)	$12,682,572	1.7%	Rank history: #3 in FY2021, #4 in FY2023, not on the FY2024 list and #6 in FY2025; down 6 since FY2021.
10	Analogic Corporation Through BK Medical Holding Company, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$3,586,369	0.5%	Rank history: #12 in FY2021, #14 in FY2023, #16 in FY2024 and not on the FY2025 list; up 2 since FY2021.
11	Philips North America LLC Top agencies VA (Department of Veterans Affairs)	$3,374,883	0.5%	Rank history: #13 in FY2021, not on the FY2023 list, #4 in FY2024 and #3 in FY2025; up 2 since FY2021.
12	Siemens Medical Solutions Usa, Inc. Top agencies VA (Department of Veterans Affairs) DLA (Defense Logistics Agency)	$3,335,420	0.5%	Rank history: #15 in FY2021 and not on the FY2023–FY2025 lists; up 3 since FY2021.
13	Spectrum Dynamics Medical Inc Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs)	$3,030,508	0.4%	Rank history: #19 in FY2021, #63 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2021.
14	BK Medical Holding Company, Inc. Top agencies VA (Department of Veterans Affairs)	$2,534,837	0.3%	Rank history: not on the FY2021 list, #45 in FY2023, #26 in FY2024 and #14 in FY2025; new.
15	Hopewell Designs, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) Commerce (Department of Commerce)	$1,929,214	0.3%	Rank history: #14 in FY2021, #30 in FY2023, #23 in FY2024 and #28 in FY2025; down 1 since FY2021.
16	V.j. Technologies, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$1,841,708	0.2%	Rank history: #24 in FY2021, #16 in FY2023, #29 in FY2024 and #15 in FY2025; up 8 since FY2021.
17	J.L Shepherd and Associates, Inc. Top agencies USAF (Department of the Air Force) USDA (Department of Agriculture)	$1,352,788	0.2%	Rank history: #16 in FY2021, #25 in FY2023, #76 in FY2024 and #35 in FY2025; down 1 since FY2021.
18	Fuji Photo Film Company Limited (0000) 2 awardees, including Fujifilm Healthcare Americas Corp Top agencies VA (Department of Veterans Affairs)	$1,181,596	0.2%	Rank history: #28 in FY2021, #21 in FY2023, #70 in FY2024 and not on the FY2025 list; up 10 since FY2021.
19	Brainlab AG Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$1,027,874	0.1%	Rank history: #31 in FY2021, #43 in FY2023, #34 in FY2024 and #25 in FY2025; up 12 since FY2021.
20	Foss Therapy Services, Inc. Top agencies Army (Department of the Army) HHS (Department of Health and Human Services)	$813,153	0.1%	Rank history: not on the FY2021 list, #35 in FY2023, #46 in FY2024 and #66 in FY2025; up 91 since FY2021.
21	Franklin Young International, Incorporated Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$718,063	0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #31 in FY2025; up 87 since FY2021.
22	Alliant Enterprises, LLC Top agencies VA (Department of Veterans Affairs)	$654,231	0.1%	Rank history: not on the FY2021 list, #60 in FY2023, #45 in FY2024 and #43 in FY2025; up 82 since FY2021.
23	Voti Usa, Inc. Top agencies Treasury (Department of the Treasury)	$620,330	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 78 since FY2021.
24	Illinois Tool Works Inc. 2 awardees, including North Star Imaging Incorporated and QSA Global Inc. Top agencies Navy (Department of the Navy) HHS (Department of Health and Human Services) Army (Department of the Army)	$619,361	0.1%	Rank history: #54 in FY2021, #11 in FY2023, #22 in FY2024 and #18 in FY2025; up 30 since FY2021.
25	BNC Corp. Top agencies DTRA (Defense Threat Reduction Agency) Navy (Department of the Navy)	$589,260	0.1%	Rank history: #18 in FY2021, #23 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2021.
26	Heska Corporation Through Cuattro, LLC Top agencies DOJ (Department of Justice)	$582,046	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
27	KUB Technologies Inc. Top agencies USDA (Department of Agriculture)	$470,150	0.1%	Rank history: #84 in FY2021, #47 in FY2023, #47 in FY2024 and #47 in FY2025; up 57 since FY2021.
28	Novo DR Inc. Top agencies Navy (Department of the Navy)	$451,792	0.1%	Rank history: not on the FY2021 list, #18 in FY2023, not on the FY2024 list and #80 in FY2025; new.
29	Rigaku Americas Holding Inc Top agencies DOI (Department of the Interior)	$448,723	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
30	Mirion Technologies (CANBERRA) Inc. Through Sun Nuclear Corp. Top agencies VA (Department of Veterans Affairs)	$401,381	0.1%	Rank history: not on the FY2021 list, #48 in FY2023 and not on the FY2024–FY2025 lists; new.
31	L3Harris Technologies, Inc. Through Fisica Applied Technologies, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) WHS (DOD Washington Headquarters Service)	$399,848	0.1%	Rank history: #23 in FY2021, #24 in FY2023, #17 in FY2024 and #24 in FY2025; down 8 since FY2021.
32	Trillamed LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$387,893	0.1%	Rank history: #36 in FY2021, #32 in FY2023, #73 in FY2024 and #44 in FY2025; up 4 since FY2021.
33	Fujifilm Healthcare Americas Corp Top agencies VA (Department of Veterans Affairs)	$376,201	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
34	1ST American Medical Distributors, Inc. Top agencies VA (Department of Veterans Affairs)	$372,918	0.1%	Rank history: #32 in FY2021, #78 in FY2023, not on the FY2024 list and #76 in FY2025; down 2 since FY2021.
35	Agfa Healthcare Corporation 2 awardees, including Agfa US Corp Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security)	$364,947	<0.1%	Rank history: #44 in FY2021, #50 in FY2023 and not on the FY2024–FY2025 lists; up 9 since FY2021.
36	Raysearch Americas Inc. Top agencies VA (Department of Veterans Affairs)	$344,695	<0.1%	Rank history: #38 in FY2021, #62 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2021.
37	Accuray Incorporated Top agencies VA (Department of Veterans Affairs)	$298,547	<0.1%	Rank history: #40 in FY2021, #33 in FY2023, #38 in FY2024 and #17 in FY2025; up 3 since FY2021.
38	Shimadzu Corporation Through Shimadzu Precision Instruments, Inc. Top agencies VA (Department of Veterans Affairs)	$298,387	<0.1%	Rank history: #22 in FY2021, #20 in FY2023, #44 in FY2024 and not on the FY2025 list; down 16 since FY2021.
39	DGA Medical LLC Top agencies VA (Department of Veterans Affairs)	$270,854	<0.1%	Rank history: #46 in FY2021, not on the FY2023 list, #48 in FY2024 and #75 in FY2025; up 7 since FY2021.
40	Varex Imaging Corp Top agencies Navy (Department of the Navy)	$256,470	<0.1%	Rank history: #39 in FY2021, #31 in FY2023, #37 in FY2024 and #42 in FY2025; down 1 since FY2021.
41	Elekta AB (PUBL) Through Elekta Inc. Top agencies VA (Department of Veterans Affairs)	$250,487	<0.1%	Rank history: #85 in FY2021, #59 in FY2023 and not on the FY2024–FY2025 lists; up 44 since FY2021.
42	Integrated Surgical, LLC Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$249,500	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
43	American Science & Engineering Inc. Top agencies DHS (Department of Homeland Security)	$241,704	<0.1%	Rank history: #59 in FY2021 and not on the FY2023–FY2025 lists; up 16 since FY2021.
44	DEL Medical Inc. Top agencies DLA (Defense Logistics Agency)	$232,250	<0.1%	Rank history: not on the FY2021 list, #28 in FY2023, #36 in FY2024 and not on the FY2025 list; new.
45	Precision X-Ray, Inc. Top agencies HHS (Department of Health and Human Services) NASA (National Aeronautics and Space Administration)	$225,048	<0.1%	Rank history: #25 in FY2021, not on the FY2023–FY2024 lists and #63 in FY2025; down 20 since FY2021.
46	Hitachi, Ltd. Through Fujifilm Healthcare Americas Corp Top agencies VA (Department of Veterans Affairs)	$223,138	<0.1%	Rank history: #17 in FY2021 and not on the FY2023–FY2025 lists; down 29 since FY2021.
47	Sky Creative for Trading and Contracting Company Top agencies USAF (Department of the Air Force)	$217,504	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
48	Assured Imaging, LLC Top agencies HHS (Department of Health and Human Services)	$214,302	<0.1%	Rank history: #97 in FY2021, not on the FY2023 list, #78 in FY2024 and not on the FY2025 list; up 49 since FY2021.
49	ASE Direct, Inc. Top agencies VA (Department of Veterans Affairs)	$212,672	<0.1%	Rank history: #69 in FY2021, not on the FY2023 list, #61 in FY2024 and #83 in FY2025; up 20 since FY2021.
50	Northern X-Ray Company Top agencies HHS (Department of Health and Human Services)	$209,592	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
51	Four Points Technology, L.L.C. Top agencies VA (Department of Veterans Affairs)	$207,536	<0.1%	Rank history: #61 in FY2021 and not on the FY2023–FY2025 lists; up 10 since FY2021.
52	Digirad Corporation Top agencies VA (Department of Veterans Affairs)	$187,340	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
53	Kodex, Inc. Top agencies USAF (Department of the Air Force) Smithsonian (Smithsonian Institution) NASA (National Aeronautics and Space Administration)	$184,824	<0.1%	Rank history: #43 in FY2021, #98 in FY2023, not on the FY2024 list and #37 in FY2025; down 10 since FY2021.
54	Theodor Wille Intertrade GMBH Through Atlantic Diving Supply, Inc. Top agencies USAF (Department of the Air Force)	$175,282	<0.1%	Rank history: not on the FY2021 list, #15 in FY2023 and not on the FY2024–FY2025 lists; new.
55	Varian Medical Systems, Inc. 2 awardees, including Varex Imaging Corp Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy)	$160,822	<0.1%	Rank history: #10 in FY2021, #36 in FY2023, #25 in FY2024 and #27 in FY2025; down 45 since FY2021.
56	Sirtex Medical Inc. Top agencies DHA (Defense Health Agency)	$146,395	<0.1%	Rank history: #33 in FY2021, #40 in FY2023, #39 in FY2024 and not on the FY2025 list; down 23 since FY2021.
57	Sun Nuclear Corp. 2 awardees Top agencies VA (Department of Veterans Affairs)	$142,056	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
58	Atirix Medical Systems Inc. Top agencies VA (Department of Veterans Affairs)	$136,447	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
59	Vidisco USA Inc. Top agencies DOD (Department of Defense)	$135,042	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
60	Linev Systems US Inc. Top agencies DOS (Department of State)	$133,628	<0.1%	Rank history: #63 in FY2021, not on the FY2023–FY2024 lists and #34 in FY2025; up 3 since FY2021.
61	Leidos Inc. Top agencies DHS (Department of Homeland Security)	$130,000	<0.1%	Rank history: #26 in FY2021 and not on the FY2023–FY2025 lists; down 35 since FY2021.
62	Excel Imaging Solutions, LLC Top agencies VA (Department of Veterans Affairs)	$129,386	<0.1%	Rank history: #78 in FY2021, #69 in FY2023, #59 in FY2024 and #64 in FY2025; up 16 since FY2021.
63	Surescan Corporation Top agencies DHS (Department of Homeland Security)	$122,546	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
64	Red One Medical Devices LLC Top agencies VA (Department of Veterans Affairs)	$117,645	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
65	Astrophysics Inc. Top agencies USAF (Department of the Air Force) DOJ (Department of Justice) DHS (Department of Homeland Security)	$109,482	<0.1%	Rank history: #6 in FY2021, #19 in FY2023, #12 in FY2024 and #8 in FY2025; down 59 since FY2021.
66	Boston Scientific Corp Top agencies VA (Department of Veterans Affairs)	$106,500	<0.1%	Rank history: #58 in FY2021 and not on the FY2023–FY2025 lists; down 8 since FY2021.
67	Sharplogixx, LLC Top agencies USAF (Department of the Air Force)	$101,030	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
68	Isoray Medical, Inc. Top agencies DHA (Defense Health Agency)	$100,000	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
69	Rhyfel, Inc. Top agencies VA (Department of Veterans Affairs)	$92,700	<0.1%	Rank history: #65 in FY2021 and not on the FY2023–FY2025 lists; down 4 since FY2021.
70	K-Art X-Ray Supply LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$89,064	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
71	Viken Detection Corporation Top agencies DHS (Department of Homeland Security)	$85,220	<0.1%	Rank history: #11 in FY2021, #67 in FY2023, #67 in FY2024 and #21 in FY2025; down 60 since FY2021.
72	Alko Enterprises Inc. Top agencies HHS (Department of Health and Human Services)	$80,940	<0.1%	Rank history: not on the FY2021 list, #27 in FY2023, #18 in FY2024 and #48 in FY2025; new.
73	Caddell Construction Co., Inc. Through Caddell Construction Co. (De), LLC Top agencies DOS (Department of State)	$80,000	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
74	Glomax, Inc. Top agencies VA (Department of Veterans Affairs)	$78,344	<0.1%	Rank history: not on the FY2021 list, #75 in FY2023, #74 in FY2024 and #68 in FY2025; up 29 since FY2021.
75	L1 Enterprises Incorporated Top agencies VA (Department of Veterans Affairs)	$77,217	<0.1%	Rank history: not on the FY2021 list, #49 in FY2023, not on the FY2024 list and #38 in FY2025; new.
76	GFS Supply & Services Company, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$71,152	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
77	Spectris PLC Through Malvern Panalytical Inc. Top agencies Navy (Department of the Navy)	$68,575	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 29 since FY2021.
78	Riverain Technologies, Inc. Top agencies VA (Department of Veterans Affairs)	$63,036	<0.1%	Rank history: #20 in FY2021, #13 in FY2023, #28 in FY2024 and #22 in FY2025; down 58 since FY2021.
79	Natus Medical Incorporated Top agencies GSA (General Services Administration)	$62,443	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
80	Spec150, LLC Top agencies NRC (Nuclear Regulatory Commission)	$61,000	<0.1%	Rank history: #89 in FY2021, #97 in FY2023 and not on the FY2024–FY2025 lists; up 9 since FY2021.
81	First American Federal Contracting LLC Top agencies DOI (Department of the Interior)	$59,995	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
82	Smiths Detection Inc. Top agencies DHS (Department of Homeland Security)	$58,578	<0.1%	Rank history: #98 in FY2021, not on the FY2023 list, #3 in FY2024 and #4 in FY2025; up 16 since FY2021.
83	MD TECH Center LLC Top agencies Army (Department of the Army)	$53,640	<0.1%	Rank history: #53 in FY2021, not on the FY2023–FY2024 lists and #51 in FY2025; down 30 since FY2021.
84	Federal Resources Supply Company Top agencies DOJ (Department of Justice)	$53,320	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
85	Biovision Technologies, Inc. Top agencies HHS (Department of Health and Human Services)	$48,751	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
86	Gamma Products Inc. Top agencies Army (Department of the Army)	$47,900	<0.1%	Rank history: #82 in FY2021, #90 in FY2023, #53 in FY2024 and #69 in FY2025; down 4 since FY2021.
87	Bayer Corporation Through Bayer Healthcare LLC Top agencies VA (Department of Veterans Affairs)	$44,719	<0.1%	Rank history: #75 in FY2021, #93 in FY2023, #86 in FY2024 and not on the FY2025 list; down 12 since FY2021.
88	Fidelis Sustainability Distribution LLC Top agencies VA (Department of Veterans Affairs)	$44,223	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
89	Radcal Corp Top agencies VA (Department of Veterans Affairs)	$41,072	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
90	Yxlon International Inc (DEL) Through Comet Technologies, Usa, Inc. Top agencies DHS (Department of Homeland Security)	$40,901	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
91	The Kretchmer Corporation Through Minxray Inc. Top agencies DLA (Defense Logistics Agency)	$39,877	<0.1%	Rank history: not on the FY2021 list, #12 in FY2023, #77 in FY2024 and not on the FY2025 list; new.
92	Ion Beam Applications SA Through IBA Dosimetry America Inc. Top agencies VA (Department of Veterans Affairs)	$39,150	<0.1%	Rank history: #81 in FY2021 and not on the FY2023–FY2025 lists; down 11 since FY2021.
93	Ultra Electronics Forensic Technology Inc Through Weed Instrument Company, Inc. Top agencies Army (Department of the Army)	$37,424	<0.1%	Rank history: #99 in FY2021 and not on the FY2023–FY2025 lists; up 6 since FY2021.
94	Televere Systems, LLC Top agencies DTRA (Defense Threat Reduction Agency)	$35,360	<0.1%	Rank history: not on the FY2021 list, #89 in FY2023 and not on the FY2024–FY2025 lists; new.
95	Contemporary Product Solutions, Inc. Top agencies VA (Department of Veterans Affairs)	$30,506	<0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #60 in FY2025; new.
96	Rad Source Technologies, Inc. Top agencies DHA (Defense Health Agency) USDA (Department of Agriculture)	$30,000	<0.1%	Rank history: #35 in FY2021, #79 in FY2023 and not on the FY2024–FY2025 lists; down 61 since FY2021.
97	Comercializadora Arcadia SAS Top agencies DOS (Department of State)	$29,829	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
98	3D Systems Corporation Through Surgical Science North America Corporation Top agencies VA (Department of Veterans Affairs)	$27,203	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
99	Electronic Risks Consultants, Inc. Top agencies Navy (Department of the Navy)	$25,462	<0.1%	Rank history: #96 in FY2021 and not on the FY2023–FY2025 lists; down 3 since FY2021.
100	Roper Technologies, Inc. Through Verathon Inc. Top agencies VA (Department of Veterans Affairs)	$23,850	<0.1%	Rank history: not on the FY2021 list, #54 in FY2023 and not on the FY2024–FY2025 lists; new.

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100 of 125 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 $738 million 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.
Fiscal year 2022 ran Oct 1, 2021 – Sep 30, 2022. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
Rank changes compare with FY2021. "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. The step from FY2021 takes the color of the rank change beside it.
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 FY2022?

1. Siemens Aktiengesellschaft ($246M), 2. General Electric Company ($180M), 3. Koninklijke Philips N.V. ($103M), 4. Smiths Group PLC ($42M), 5. Hologic, Inc. ($28M), 6. Westinghouse Electric Company LLC ($21.9M), 7. Viewray, Inc. ($14.6M), 8. OSI Systems Inc. ($14.6M), 9. Leidos Holdings, Inc. ($12.7M), 10. Analogic Corporation ($3.59M).

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