Top 100 Contractors in NAICS 334517: Irradiation Apparatus Manufacturing, FY2025

Name: Top 100 Contractors in NAICS 334517: Irradiation Apparatus Manufacturing, FY2025
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 85% of FY2025 NAICS 334517 contract dollars

Contract obligations: $852,976,898 Net of deobligations, by contracts coded NAICS 334517
Contractors: 119 Parent companies with an obligation
Largest contractor: Siemens Corporation $180 million, 20.0% 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 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)	$180,211,402	20.0%	Rank history: not on the FY2021–FY2023 lists and #1 in FY2024; unchanged since FY2024.
2	General Electric Company 3 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)	$153,565,828	17.1%	Rank history: #4 in FY2021, #2 in FY2022, #2 in FY2023 and #2 in FY2024; unchanged since FY2024.
3	Philips North America LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$117,339,334	13.1%	Rank history: #13 in FY2021, #11 in FY2022, not on the FY2023 list and #4 in FY2024; up 1 since FY2024.
4	Smiths Detection Inc. Top agencies DHS (Department of Homeland Security)	$85,755,406	9.5%	Rank history: #98 in FY2021, #82 in FY2022, not on the FY2023 list and #3 in FY2024; down 1 since FY2024.
5	Rapiscan Systems Inc Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) DOS (Department of State)	$74,899,863	8.3%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2024; up 4 since FY2024.
6	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)	$74,541,197	8.3%	Rank history: #3 in FY2021, #9 in FY2022, #4 in FY2023 and not on the FY2024 list; returned.
7	Westinghouse Government Services LLC Top agencies DOE (Department of Energy)	$24,965,577	2.8%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2024; up 12 since FY2024.
8	Astrophysics Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) USAF (Department of the Air Force)	$22,845,097	2.5%	Rank history: #6 in FY2021, #65 in FY2022, #19 in FY2023 and #12 in FY2024; up 4 since FY2024.
9	OEC Medical Systems, Inc. Top agencies VA (Department of Veterans Affairs)	$17,050,155	1.9%	Rank history: not on the FY2021–FY2023 lists and #10 in FY2024; up 1 since FY2024.
10	Hologic Sales and Service, LLC Top agencies VA (Department of Veterans Affairs) DLA (Defense Logistics Agency) HHS (Department of Health and Human Services)	$15,896,072	1.8%	Rank history: not on the FY2021–FY2023 lists and #11 in FY2024; up 1 since FY2024.
11	Elekta Holdings U.S. Inc. Through Elekta Inc. Top agencies VA (Department of Veterans Affairs) USUHS (DOD Uniformed Services University of the Health Sciences)	$10,894,542	1.2%	Rank history: not on the FY2021–FY2023 lists and #93 in FY2024; up 82 since FY2024.
12	Osage Nation Energy Services LLC Top agencies HHS (Department of Health and Human Services)	$8,857,359	1.0%	Rank history: not on the FY2021–FY2024 lists; new.
13	Marietta Nondestructive Testing LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$8,748,276	1.0%	Rank history: #52 in FY2021, not on the FY2022 list, #29 in FY2023 and not on the FY2024 list; up 92 since FY2024.
14	BK Medical Holding Company, Inc. Top agencies VA (Department of Veterans Affairs)	$8,598,763	1.0%	Rank history: not on the FY2021 list, #14 in FY2022, #45 in FY2023 and #26 in FY2024; up 12 since FY2024.
15	V.j. Technologies, Inc. Top agencies Army (Department of the Army)	$6,730,410	0.7%	Rank history: #24 in FY2021, #16 in FY2022, #16 in FY2023 and #29 in FY2024; up 14 since FY2024.
16	Hadland Imaging LLC Top agencies USAF (Department of the Air Force)	$5,332,026	0.6%	Rank history: not on the FY2021–FY2023 lists and #15 in FY2024; down 1 since FY2024.
17	Accuray Incorporated Top agencies VA (Department of Veterans Affairs)	$4,567,563	0.5%	Rank history: #40 in FY2021, #37 in FY2022, #33 in FY2023 and #38 in FY2024; up 21 since FY2024.
18	Illinois Tool Works Inc. 2 awardees, including North Star Imaging Incorporated and QSA Global Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$3,281,819	0.4%	Rank history: #54 in FY2021, #24 in FY2022, #11 in FY2023 and #22 in FY2024; up 4 since FY2024.
19	Fujifilm Healthcare Americas Corp Top agencies VA (Department of Veterans Affairs)	$2,977,747	0.3%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2024; down 5 since FY2024.
20	Biosensors International Group Ltd. Through Spectrum Dynamics Medical, Inc. Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs)	$2,369,705	0.3%	Rank history: not on the FY2021–FY2022 lists, #17 in FY2023 and #27 in FY2024; up 7 since FY2024.
21	Viken Detection Corporation Top agencies DOS (Department of State) DOJ (Department of Justice)	$2,238,870	0.2%	Rank history: #11 in FY2021, #71 in FY2022, #67 in FY2023 and #67 in FY2024; up 46 since FY2024.
22	Riverain Technologies, Inc. Top agencies VA (Department of Veterans Affairs)	$1,945,345	0.2%	Rank history: #20 in FY2021, #78 in FY2022, #13 in FY2023 and #28 in FY2024; up 6 since FY2024.
23	Raysearch Americas Inc. Top agencies VA (Department of Veterans Affairs)	$1,819,911	0.2%	Rank history: not on the FY2021–FY2023 lists and #32 in FY2024; up 9 since FY2024.
24	L3Harris Technologies, Inc. Through Fisica Applied Technologies, Inc. Top agencies WHS (DOD Washington Headquarters Service) Army (Department of the Army)	$1,771,910	0.2%	Rank history: #23 in FY2021, #31 in FY2022, #24 in FY2023 and #17 in FY2024; down 7 since FY2024.
25	Brainlab Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$1,627,512	0.2%	Rank history: #31 in FY2021, #19 in FY2022, #43 in FY2023 and #34 in FY2024; up 9 since FY2024.
26	Airbus DS Military Aircraft Inc. Through Dornier Medtech America, Inc. Top agencies VA (Department of Veterans Affairs)	$1,169,881	0.1%	Rank history: not on the FY2021–FY2022 lists, #44 in FY2023 and #30 in FY2024; up 4 since FY2024.
27	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 and #25 in FY2024; down 2 since FY2024.
28	Hopewell Designs, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Commerce (Department of Commerce)	$1,028,735	0.1%	Rank history: #14 in FY2021, #15 in FY2022, #30 in FY2023 and #23 in FY2024; down 5 since FY2024.
29	Shimadzu America Inc. Through Shimadzu Precision Instruments, Inc. Top agencies VA (Department of Veterans Affairs)	$1,018,634	0.1%	Rank history: not on the FY2021–FY2023 lists and #21 in FY2024; down 8 since FY2024.
30	Del Medical, Inc. Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs)	$1,004,612	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
31	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 and not on the FY2023–FY2024 lists; returned.
32	Bruker AXS LLC Top agencies Army (Department of the Army)	$557,998	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
33	Bayer Healthcare LLC Top agencies VA (Department of Veterans Affairs)	$557,099	0.1%	Rank history: not on the FY2021–FY2023 lists and #91 in FY2024; up 58 since FY2024.
34	Linev Systems US Inc. Top agencies Army (Department of the Army)	$556,240	0.1%	Rank history: #63 in FY2021, #60 in FY2022 and not on the FY2023–FY2024 lists; returned.
35	J.L Shepherd and Associates, Inc. Top agencies USAF (Department of the Air Force)	$495,105	0.1%	Rank history: #16 in FY2021, #17 in FY2022, #25 in FY2023 and #76 in FY2024; up 41 since FY2024.
36	RAD Source Technologies Inc. Top agencies DHA (Defense Health Agency) DHS (Department of Homeland Security)	$473,100	0.1%	Rank history: not on the FY2021–FY2023 lists and #51 in FY2024; up 15 since FY2024.
37	Kodex, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$466,490	0.1%	Rank history: #43 in FY2021, #53 in FY2022, #98 in FY2023 and not on the FY2024 list; returned.
38	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 and not on the FY2024 list; returned.
39	Test Equipment Distributors LLC Top agencies Army (Department of the Army) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$383,965	<0.1%	Rank history: not on the FY2021–FY2023 lists and #50 in FY2024; up 11 since FY2024.
40	Mirion Technologies (CAPINTEC) Inc. 2 awardees, including Mirion Technologies (Canberra), Inc. and Sun Nuclear Corp. Top agencies Army (Department of the Army) VA (Department of Veterans Affairs)	$360,463	<0.1%	Rank history: not on the FY2021–FY2023 lists and #66 in FY2024; up 26 since FY2024.
41	Atlantic Diving Supply, Inc. Top agencies USAF (Department of the Air Force)	$355,000	<0.1%	Rank history: not on the FY2021–FY2023 lists and #41 in FY2024; unchanged since FY2024.
42	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 and #37 in FY2024; down 5 since FY2024.
43	Alliant Enterprises, LLC Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs)	$306,229	<0.1%	Rank history: not on the FY2021 list, #22 in FY2022, #60 in FY2023 and #45 in FY2024; up 2 since FY2024.
44	Trillamed LLC Top agencies USDA (Department of Agriculture) VA (Department of Veterans Affairs)	$260,478	<0.1%	Rank history: #36 in FY2021, #32 in FY2022, #32 in FY2023 and #73 in FY2024; up 29 since FY2024.
45	Ramsey Electronics, LLC Top agencies DHS (Department of Homeland Security)	$249,916	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
46	Koninklijke Philips N.V. Through Philips Healthcare Informatics Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$245,554	<0.1%	Rank history: #5 in FY2021, #3 in FY2022, #3 in FY2023 and #5 in FY2024; down 41 since FY2024.
47	KUB Technologies Inc. Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$202,280	<0.1%	Rank history: #84 in FY2021, #27 in FY2022, #47 in FY2023 and #47 in FY2024; unchanged since FY2024.
48	Alko Enterprises Inc. Top agencies HHS (Department of Health and Human Services)	$201,403	<0.1%	Rank history: not on the FY2021 list, #72 in FY2022, #27 in FY2023 and #18 in FY2024; down 30 since FY2024.
49	DNI Mission Services LLC Top agencies HHS (Department of Health and Human Services)	$163,156	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
50	AGFA-GEVAERT Through Agfa US Corp Top agencies VA (Department of Veterans Affairs)	$150,111	<0.1%	Rank history: not on the FY2021–FY2023 lists and #58 in FY2024; up 8 since FY2024.
51	MD TECH Center LLC Top agencies National Gallery of Art	$141,857	<0.1%	Rank history: #53 in FY2021, #83 in FY2022 and not on the FY2023–FY2024 lists; returned.
52	Merakai, LLC Top agencies DHS (Department of Homeland Security)	$141,255	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
53	PTW North America Corporation Top agencies VA (Department of Veterans Affairs)	$136,057	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
54	Avmedical LLC Top agencies VA (Department of Veterans Affairs)	$126,618	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
55	Advanced Critical Devices, Inc. Top agencies VA (Department of Veterans Affairs)	$125,000	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
56	Logos Imaging LLC Top agencies DOJ (Department of Justice)	$124,586	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
57	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 and not on the FY2024 list; returned.
58	Point Security Inc Top agencies DOT (Department of Transportation)	$107,405	<0.1%	Rank history: #71 in FY2021, not on the FY2022 list, #55 in FY2023 and #31 in FY2024; down 27 since FY2024.
59	Sirtex Medical Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$100,417	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
60	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 and not on the FY2023–FY2024 lists; returned.
61	Atlantium Technologies Ltd Top agencies DOI (Department of the Interior)	$94,435	<0.1%	Rank history: #21 in FY2021 and not on the FY2022–FY2024 lists; returned.
62	Golden Engineering, Inc. Top agencies DOJ (Department of Justice) Navy (Department of the Navy)	$92,995	<0.1%	Rank history: not on the FY2021–FY2022 lists, #73 in FY2023 and #68 in FY2024; up 6 since FY2024.
63	Precision X-Ray, Inc. Top agencies Navy (Department of the Navy)	$83,665	<0.1%	Rank history: #25 in FY2021, #45 in FY2022 and not on the FY2023–FY2024 lists; returned.
64	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 and #59 in FY2024; down 5 since FY2024.
65	Krell Technologies Inc. Top agencies Navy (Department of the Navy)	$73,675	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
66	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 and #46 in FY2024; down 20 since FY2024.
67	Unique Technology Systems LLC Top agencies USAF (Department of the Air Force)	$68,075	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
68	Glomax, Inc. Top agencies VA (Department of Veterans Affairs)	$67,710	<0.1%	Rank history: not on the FY2021 list, #74 in FY2022, #75 in FY2023 and #74 in FY2024; up 6 since FY2024.
69	Gamma Products Inc. Top agencies EPA (Environmental Protection Agency)	$65,707	<0.1%	Rank history: #82 in FY2021, #86 in FY2022, #90 in FY2023 and #53 in FY2024; down 16 since FY2024.
70	Canon Medical Systems USA Inc Top agencies HHS (Department of Health and Human Services)	$65,145	<0.1%	Rank history: not on the FY2021–FY2023 lists and #69 in FY2024; down 1 since FY2024.
71	Technology International Inc. Top agencies Navy (Department of the Navy)	$54,591	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
72	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 and not on the FY2024 list; returned.
73	B & H International LLC Top agencies Navy (Department of the Navy)	$51,440	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
74	SC Medical Overseas Inc. Top agencies VA (Department of Veterans Affairs)	$49,785	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
75	DGA Medical LLC Top agencies VA (Department of Veterans Affairs)	$47,865	<0.1%	Rank history: #46 in FY2021, #39 in FY2022, #38 in FY2023 and #48 in FY2024; down 27 since FY2024.
76	1ST American Medical Distributors, Inc. Top agencies VA (Department of Veterans Affairs)	$46,870	<0.1%	Rank history: #32 in FY2021, #34 in FY2022, #78 in FY2023 and not on the FY2024 list; returned.
77	Lista Italia SRL Top agencies USAF (Department of the Air Force)	$40,004	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
78	Lake Superior X-RAY Inc Top agencies USDA (Department of Agriculture)	$37,500	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
79	Firstchoice Group America LLC Top agencies USAF (Department of the Air Force)	$35,550	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
80	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 and not on the FY2024 list; returned.
81	GOV Source LLC Top agencies Army (Department of the Army)	$34,040	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
82	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; new.
83	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 and #61 in FY2024; down 22 since FY2024.
84	Mercy Medical Equipment Company Top agencies VA (Department of Veterans Affairs)	$32,638	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
85	Bravo, Inc. Top agencies VA (Department of Veterans Affairs)	$29,790	<0.1%	Rank history: not on the FY2021–FY2023 lists and #92 in FY2024; up 7 since FY2024.
86	Supertech Inc. Top agencies VA (Department of Veterans Affairs)	$24,989	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
87	IBA Dosimetry America Inc. Top agencies VA (Department of Veterans Affairs)	$24,945	<0.1%	Rank history: not on the FY2021–FY2022 lists, #80 in FY2023 and #64 in FY2024; down 23 since FY2024.
88	Radiation Detection Company Top agencies VA (Department of Veterans Affairs)	$24,456	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
89	Samsung Electronics Co.,Ltd. Through Samsung HME America, Inc. Top agencies VA (Department of Veterans Affairs)	$24,106	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
90	Technical Services Group, Inc. Top agencies USAF (Department of the Air Force)	$21,999	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
91	Hologic, Inc. Top agencies DHA (Defense Health Agency)	$21,555	<0.1%	Rank history: #9 in FY2021, #5 in FY2022, #8 in FY2023 and #24 in FY2024; down 67 since FY2024.
92	Fed Crew Inc. Top agencies DHA (Defense Health Agency)	$20,303	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
93	Probo Medical LLC Top agencies VA (Department of Veterans Affairs)	$19,500	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
94	U.s. Testing Equipment, Limited Top agencies USDA (Department of Agriculture)	$18,978	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
95	Laco, Inc. Top agencies USAF (Department of the Air Force)	$18,700	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
96	Best Theratronics Ltd Top agencies VA (Department of Veterans Affairs)	$17,610	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
97	Lablogic Systems Inc. Top agencies VA (Department of Veterans Affairs)	$17,020	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
98	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; up 6 since FY2024.
99	Ackermann Imaging Inc. Top agencies DOI (Department of the Interior)	$16,228	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
100	Innovative Automation Inc. Top agencies USAF (Department of the Air Force)	$15,395	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.

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100 of 119 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 $899 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 2025 ran Oct 1, 2024 – Sep 30, 2025. 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 FY2024. "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 FY2024 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 FY2025?

1. Siemens Corporation ($180M), 2. General Electric Company ($154M), 3. Philips North America LLC ($117M), 4. Smiths Detection Inc. ($85.8M), 5. Rapiscan Systems Inc ($74.9M), 6. Leidos Holdings, Inc. ($74.5M), 7. Westinghouse Government Services LLC ($25M), 8. Astrophysics Inc. ($22.8M), 9. OEC Medical Systems, Inc. ($17.1M), 10. Hologic Sales and Service, LLC ($15.9M).

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