Top 100 Contractors in NAICS 334515: Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals, Jul 2025–Jun 2026

Name: Top 100 Contractors in NAICS 334515: Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals, 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 63% of NAICS 334515 contract dollars from July 2025 through June 2026

Contract obligations: $572,573,756 Net of deobligations, by contracts coded NAICS 334515
Contractors: 641 Parent companies with an obligation
Largest contractor: Astronics Test Systems Inc. $108 million, 18.6% of obligations
Data as of: Oct 16, 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	Astronics Test Systems Inc. 2 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$107,723,330	18.6%	Rank history: not on the FY2021–FY2023 lists, #3 in FY2024 and #6 in FY2025; up 7 since Jul 2024–Jun 2025.
2	Teradyne Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$44,100,133	7.6%	Rank history: #7 in FY2021, #6 in FY2022, #3 in FY2023, #5 in FY2024 and #2 in FY2025; up 1 since Jul 2024–Jun 2025.
3	General Dynamics Corporation 2 awardees, including General Dynamics Mission Systems, Inc. Top agencies Army (Department of the Army)	$32,755,389	5.7%	Rank history: not on the FY2021–FY2022 lists, #11 in FY2023, #15 in FY2024 and #7 in FY2025; up 8 since Jul 2024–Jun 2025.
4	Total Technology, Inc. Top agencies Army (Department of the Army)	$31,972,106	5.5%	Rank history: not on the FY2021 list, #1 in FY2022, #12 in FY2023, #14 in FY2024 and #4 in FY2025; up 130 since Jul 2024–Jun 2025.
5	Keysight Technologies, Inc. 3 awardees Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$31,130,867	5.4%	Rank history: #6 in FY2021, #10 in FY2022, #6 in FY2023, #12 in FY2024 and #15 in FY2025; up 8 since Jul 2024–Jun 2025.
6	Innovative Defense Technologies LLC Top agencies Navy (Department of the Navy)	$30,197,076	5.2%	Rank history: not on the FY2021–FY2022 lists, #18 in FY2023, #8 in FY2024 and #5 in FY2025; up 1 since Jul 2024–Jun 2025.
7	The Boeing Company 4 awardees, including Boeing Distribution Services, Inc. and Boeing Distribution Services X, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$29,539,618	5.1%	Rank history: #1 in FY2021, not on the FY2022 list, #1 in FY2023, #10 in FY2024 and #9 in FY2025; up 3 since Jul 2024–Jun 2025.
8	CHG Group Inc Through Chemring Energetic Devices Inc. Top agencies USAF (Department of the Air Force)	$21,986,548	3.8%	Rank history: not on the FY2021–FY2023 lists, #73 in FY2024 and #3 in FY2025; up 1 since Jul 2024–Jun 2025.
9	PCI Aviation LLC Top agencies Navy (Department of the Navy)	$21,348,722	3.7%	Rank history: not on the FY2021–FY2024 lists and #1 in FY2025; down 7 since Jul 2024–Jun 2025.
10	Fortive Corporation Through Fluke Electronics Corp Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$13,171,000	2.3%	Rank history: not on the FY2021–FY2023 lists, #11 in FY2024 and #8 in FY2025; down 5 since Jul 2024–Jun 2025.
11	Tyonek Machining and Fabrication, LLC Top agencies USAF (Department of the Air Force)	$12,861,534	2.2%	Rank history: not on the FY2021–FY2023 lists, #51 in FY2024 and #20 in FY2025; up 18 since Jul 2024–Jun 2025.
12	Textron Inc. Through Textron Systems Corporation Top agencies Navy (Department of the Navy)	$8,938,322	1.5%	Rank history: #3 in FY2021, #16 in FY2022, #15 in FY2023, not on the FY2024 list and #22 in FY2025; up 11 since Jul 2024–Jun 2025.
13	Rohde & Schwarz Usa, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Commerce (Department of Commerce)	$8,281,691	1.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
14	Technical Communities, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$8,162,584	1.4%	Rank history: #11 in FY2021, #13 in FY2022, not on the FY2023 list, #22 in FY2024 and #12 in FY2025; up 4 since Jul 2024–Jun 2025.
15	Safety Technology Holdings Inc. Through Humanetics Innovative Solutions, Inc. Top agencies DOT (Department of Transportation) USAF (Department of the Air Force)	$7,395,077	1.3%	Rank history: not on the FY2021–FY2023 lists, #25 in FY2024 and #21 in FY2025; up 10 since Jul 2024–Jun 2025.
16	Northrop Grumman Systems Corporation 5 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$6,671,074	1.2%	Rank history: #4 in FY2021, #3 in FY2022, #4 in FY2023, #7 in FY2024 and #10 in FY2025; down 12 since Jul 2024–Jun 2025.
17	BAE Systems Through BAE Systems Information and Electronic Systems Integration Inc. Top agencies USAF (Department of the Air Force)	$6,529,204	1.1%	Rank history: #10 in FY2021, #48 in FY2022, #53 in FY2023, #28 in FY2024 and #11 in FY2025; unchanged since Jul 2024–Jun 2025.
18	Orbit/FR Inc. Through Orbit Advanced Technologies, Inc. Top agencies Navy (Department of the Navy)	$6,259,898	1.1%	Rank history: not on the FY2021–FY2024 lists and #17 in FY2025; up 20 since Jul 2024–Jun 2025.
19	Rohde & Schwarz GMBH & Co. Kommanditgesellschaft Through Rohde & Schwarz Usa, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Commerce (Department of Commerce)	$5,836,021	1.0%	Rank history: #5 in FY2021, #5 in FY2022, #2 in FY2023, #9 in FY2024 and #14 in FY2025; down 3 since Jul 2024–Jun 2025.
20	Silvus Technologies Inc. Through Crfs, Inc. Top agencies FCC (Federal Communications Commission) USAF (Department of the Air Force) Navy (Department of the Navy)	$5,586,316	1.0%	Rank history: not on the FY2021–FY2022 lists, #23 in FY2023, #27 in FY2024 and #24 in FY2025; up 103 since Jul 2024–Jun 2025.
21	Ametek Inc. 5 awardees, including Ametek Programmable Power, Inc., Nsi-Mi Technologies Inc. and Amplifier Research Corp Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DOT (Department of Transportation)	$5,517,875	1.0%	Rank history: #89 in FY2021, #30 in FY2022, #51 in FY2023, #31 in FY2024 and #13 in FY2025; down 6 since Jul 2024–Jun 2025.
22	GTA Containers, LLC Top agencies Army (Department of the Army)	$4,662,966	0.8%	Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; up 8 since Jul 2024–Jun 2025.
23	Tel-Instrument Electronics Corp Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$4,522,875	0.8%	Rank history: not on the FY2021 list, #24 in FY2022, #87 in FY2023, #59 in FY2024 and #30 in FY2025; up 81 since Jul 2024–Jun 2025.
24	Tevet LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) NASA (National Aeronautics and Space Administration)	$4,299,761	0.7%	Rank history: not on the FY2021–FY2023 lists, #2 in FY2024 and #32 in FY2025; down 10 since Jul 2024–Jun 2025.
25	Testforce Usa, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) USDA (Department of Agriculture)	$4,299,281	0.7%	Rank history: #83 in FY2021, #44 in FY2022, #69 in FY2023, #45 in FY2024 and #29 in FY2025; up 15 since Jul 2024–Jun 2025.
26	L3Harris Technologies, Inc. 4 awardees, including L3 Technologies Inc. Top agencies Navy (Department of the Navy)	$3,479,222	0.6%	Rank history: #9 in FY2021, #15 in FY2022, #21 in FY2023, #20 in FY2024 and #27 in FY2025; down 2 since Jul 2024–Jun 2025.
27	Emerson Electric Co Through National Instruments Corp Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$3,474,041	0.6%	Rank history: not on the FY2021–FY2023 lists, #4 in FY2024 and #16 in FY2025; down 15 since Jul 2024–Jun 2025.
28	Testek LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$3,246,742	0.6%	Rank history: not on the FY2021 list, #47 in FY2022, #5 in FY2023, #23 in FY2024 and #19 in FY2025; down 8 since Jul 2024–Jun 2025.
29	Atlantic Diving Supply, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$3,147,093	0.5%	Rank history: not on the FY2021–FY2023 lists, #44 in FY2024 and #28 in FY2025; up 15 since Jul 2024–Jun 2025.
30	Clarke Hess Communication Research Corp Top agencies USAF (Department of the Air Force)	$3,047,000	0.5%	Rank history: #52 in FY2021, not on the FY2022 list, #93 in FY2023, not on the FY2024 list and #25 in FY2025; up 45 since Jul 2024–Jun 2025.
31	Thermo Fisher Scientific Inc. 2 awardees, including FEI Company and Thermo Fisher Scientific (Asheville) LLC Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy)	$2,709,485	0.5%	Rank history: not on the FY2021–FY2022 lists, #78 in FY2023, not on the FY2024 list and #33 in FY2025; up 57 since Jul 2024–Jun 2025.
32	BNC Corp. Top agencies OSD (Office of the Secretary of Defense) Navy (Department of the Navy) DTRA (Defense Threat Reduction Agency)	$2,589,778	0.4%	Rank history: not on the FY2021–FY2024 lists and #36 in FY2025; up 67 since Jul 2024–Jun 2025.
33	Protospace MFG USA Inc. Top agencies DOT (Department of Transportation)	$2,413,826	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
34	Ruta Supplies Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,345,281	0.4%	Rank history: not on the FY2021–FY2022 lists, #40 in FY2023 and not on the FY2024–FY2025 lists; up 165 since Jul 2024–Jun 2025.
35	Advanced Testing Technologies Inc. Top agencies USAF (Department of the Air Force)	$2,312,043	0.4%	Rank history: #19 in FY2021, #19 in FY2022, #43 in FY2023, #35 in FY2024 and #35 in FY2025; down 7 since Jul 2024–Jun 2025.
36	Applied Physical Electronics, LC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,747,180	0.3%	Rank history: #75 in FY2021, not on the FY2022–FY2024 lists and #91 in FY2025; new, not ranked in Jul 2024–Jun 2025.
37	Fotronic Corporation Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$1,724,013	0.3%	Rank history: #42 in FY2021, #46 in FY2022, #45 in FY2023, #34 in FY2024 and #41 in FY2025; down 3 since Jul 2024–Jun 2025.
38	International Television Corp Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) NASA (National Aeronautics and Space Administration)	$1,517,951	0.3%	Rank history: #27 in FY2021, #28 in FY2022, #20 in FY2023, #30 in FY2024 and #46 in FY2025; up 8 since Jul 2024–Jun 2025.
39	Hiller Measurements Inc. Top agencies DOT (Department of Transportation)	$1,499,283	0.3%	Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; new, not ranked in Jul 2024–Jun 2025.
40	Symetrics Industries, LLC Top agencies Navy (Department of the Navy)	$1,489,861	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
41	Esco Technologies Inc. 2 awardees, including Doble Engineering Company and Vacco Industries Top agencies DOE (Department of Energy) DOI (Department of the Interior) Army (Department of the Army)	$1,386,711	0.2%	Rank history: #36 in FY2021, #35 in FY2022, #19 in FY2023, #37 in FY2024 and #44 in FY2025; up 4 since Jul 2024–Jun 2025.
42	Star Poly Bag, Inc. Top agencies GSA (General Services Administration)	$1,361,833	0.2%	Rank history: not on the FY2021–FY2025 lists; up 191 since Jul 2024–Jun 2025.
43	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$1,302,531	0.2%	Rank history: #30 in FY2021, #49 in FY2022, #50 in FY2023, #64 in FY2024 and #72 in FY2025; up 21 since Jul 2024–Jun 2025.
44	Eclypse International Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,264,127	0.2%	Rank history: #97 in FY2021, not on the FY2022 list, #31 in FY2023 and not on the FY2024–FY2025 lists; up 128 since Jul 2024–Jun 2025.
45	Rees Scientific Corporation Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$1,248,228	0.2%	Rank history: #51 in FY2021, #57 in FY2022, #34 in FY2023, #66 in FY2024 and #43 in FY2025; down 4 since Jul 2024–Jun 2025.
46	Marvin Test Solutions, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$1,175,776	0.2%	Rank history: not on the FY2021–FY2025 lists; up 57 since Jul 2024–Jun 2025.
47	Ets-Lindgren Inc. Top agencies USAF (Department of the Air Force) DOS (Department of State) FCC (Federal Communications Commission)	$1,117,148	0.2%	Rank history: not on the FY2021–FY2023 lists, #36 in FY2024 and #31 in FY2025; down 21 since Jul 2024–Jun 2025.
48	Howell Instruments, Inc. Top agencies USAF (Department of the Air Force)	$1,100,516	0.2%	Rank history: #47 in FY2021, #41 in FY2022, #49 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
49	Concepts Nrec, LLC Top agencies Army (Department of the Army)	$1,100,000	0.2%	Rank history: not on the FY2021–FY2023 lists, #53 in FY2024 and #49 in FY2025; up 5 since Jul 2024–Jun 2025.
50	Kitco LLC Top agencies Navy (Department of the Navy)	$1,059,209	0.2%	Rank history: not on the FY2021–FY2024 lists and #48 in FY2025; up 2 since Jul 2024–Jun 2025.
51	Honeywell International Inc. 2 awardees Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$1,048,653	0.2%	Rank history: not on the FY2021 list, #52 in FY2022, not on the FY2023 list, #46 in FY2024 and #50 in FY2025; unchanged since Jul 2024–Jun 2025.
52	Power Test, LLC Top agencies Navy (Department of the Navy)	$1,017,358	0.2%	Rank history: not on the FY2021–FY2024 lists and #53 in FY2025; new, not ranked in Jul 2024–Jun 2025.
53	GMS International Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$952,772	0.2%	Rank history: not on the FY2021–FY2024 lists and #52 in FY2025; up 107 since Jul 2024–Jun 2025.
54	Dewesoft D.O.O. Through Dewesoft LLC Top agencies Army (Department of the Army) NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$942,530	0.2%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2023, not on the FY2024 list and #39 in FY2025; up 4 since Jul 2024–Jun 2025.
55	Dol Technologies Inc. Top agencies Navy (Department of the Navy)	$880,000	0.2%	Rank history: not on the FY2021–FY2024 lists and #56 in FY2025; up 281 since Jul 2024–Jun 2025.
56	Weapons and Tactics Alliance Group Inc. Top agencies USAF (Department of the Air Force)	$854,508	0.1%	Rank history: not on the FY2021–FY2024 lists and #57 in FY2025; new, not ranked in Jul 2024–Jun 2025.
57	Seica Inc Top agencies DMEA (Defense Microelectronics Activity) Commerce (Department of Commerce)	$840,752	0.1%	Rank history: not on the FY2021–FY2024 lists and #58 in FY2025; up 312 since Jul 2024–Jun 2025.
58	Dover Pumps & Process Solutions Segment Inc. Top agencies Navy (Department of the Navy)	$827,647	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
59	S I T Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$795,254	0.1%	Rank history: not on the FY2021 list, #91 in FY2022, not on the FY2023 list, #83 in FY2024 and #88 in FY2025; up 56 since Jul 2024–Jun 2025.
60	Amphenol Corporation 2 awardees, including Marport Americas Inc. and PCB Piezotronics, Inc. Top agencies Commerce (Department of Commerce) DHA (Defense Health Agency)	$779,517	0.1%	Rank history: not on the FY2021–FY2024 lists and #61 in FY2025; new, not ranked in Jul 2024–Jun 2025.
61	Caron East, Inc. Top agencies USDA (Department of Agriculture) DOI (Department of the Interior) Navy (Department of the Navy)	$721,617	0.1%	Rank history: #29 in FY2021, #37 in FY2022, #27 in FY2023, #29 in FY2024 and #64 in FY2025; down 30 since Jul 2024–Jun 2025.
62	Gantner Instruments, Inc. Top agencies USAF (Department of the Air Force)	$710,425	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
63	Heico Corp 2 awardees, including Research Electronics International, L.L.C. and Seal Dynamics LLC Top agencies DLA (Defense Logistics Agency) DTRA (Defense Threat Reduction Agency) DOE (Department of Energy)	$706,102	0.1%	Rank history: #41 in FY2021, not on the FY2022 list, #82 in FY2023, #67 in FY2024 and not on the FY2025 list; up 6 since Jul 2024–Jun 2025.
64	Cannon Load Banks, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$688,683	0.1%	Rank history: not on the FY2021–FY2025 lists; up 132 since Jul 2024–Jun 2025.
65	Analox Limited Top agencies Navy (Department of the Navy)	$632,479	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
66	Berkshire Hathaway Inc. Through Kitco Fiber Optics Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$620,317	0.1%	Rank history: not on the FY2021–FY2024 lists and #23 in FY2025; down 44 since Jul 2024–Jun 2025.
67	Viavi Solutionsllc Top agencies Navy (Department of the Navy)	$619,322	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
68	Gap Wireless Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$617,547	0.1%	Rank history: not on the FY2021–FY2024 lists and #76 in FY2025; up 64 since Jul 2024–Jun 2025.
69	Telectro-Mek Inc. Top agencies DLA (Defense Logistics Agency)	$616,554	0.1%	Rank history: #48 in FY2021, #38 in FY2022, #94 in FY2023, #79 in FY2024 and #26 in FY2025; down 42 since Jul 2024–Jun 2025.
70	SRC Inc. Top agencies USAF (Department of the Air Force)	$608,038	0.1%	Rank history: not on the FY2021–FY2024 lists and #68 in FY2025; new, not ranked in Jul 2024–Jun 2025.
71	Ultrax Aerospace Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$605,592	0.1%	Rank history: not on the FY2021–FY2024 lists and #93 in FY2025; up 259 since Jul 2024–Jun 2025.
72	Measurement Specialties Inc. Through Brantner and Associates, Inc. Top agencies Navy (Department of the Navy)	$600,000	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
73	New TECH Solutions, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$596,149	0.1%	Rank history: not on the FY2021–FY2024 lists and #67 in FY2025; up 181 since Jul 2024–Jun 2025.
74	Texas MGT Associates Inc. Top agencies Navy (Department of the Navy)	$586,009	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
75	Integrated Procurement Technologies Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$583,368	0.1%	Rank history: not on the FY2021–FY2025 lists; up 86 since Jul 2024–Jun 2025.
76	Teledyne Instruments Inc. Top agencies Navy (Department of the Navy)	$560,024	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
77	Thales Defense & Security Inc. Top agencies Navy (Department of the Navy)	$544,445	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
78	Pacific Instruments, Inc. Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy) Army (Department of the Army)	$542,005	0.1%	Rank history: not on the FY2021–FY2025 lists; up 158 since Jul 2024–Jun 2025.
79	Measurements International Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$535,900	0.1%	Rank history: #87 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
80	MK Test Systems Americas Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$519,950	0.1%	Rank history: not on the FY2021–FY2024 lists and #71 in FY2025; up 399 since Jul 2024–Jun 2025.
81	Microchip Technology Inc. Top agencies Navy (Department of the Navy) NASA (National Aeronautics and Space Administration) Commerce (Department of Commerce)	$484,353	0.1%	Rank history: not on the FY2021 list, #45 in FY2022, #75 in FY2023, not on the FY2024 list and #82 in FY2025; up 13 since Jul 2024–Jun 2025.
82	Qrc, LLC Top agencies Army (Department of the Army)	$445,801	0.1%	Rank history: not on the FY2021–FY2023 lists, #69 in FY2024 and #51 in FY2025; down 27 since Jul 2024–Jun 2025.
83	Pickering Interfaces, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$442,607	0.1%	Rank history: not on the FY2021–FY2023 lists, #92 in FY2024 and not on the FY2025 list; up 4 since Jul 2024–Jun 2025.
84	Sparc Research LLC Through Design Integrated Technology, Inc. Top agencies USAF (Department of the Air Force)	$438,690	0.1%	Rank history: not on the FY2021–FY2024 lists and #80 in FY2025; new, not ranked in Jul 2024–Jun 2025.
85	Siemens Industry Inc. Top agencies Navy (Department of the Navy)	$416,047	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
86	Omicron Electronics Corp USA Top agencies DOI (Department of the Interior) Navy (Department of the Navy) Army (Department of the Army)	$414,487	0.1%	Rank history: not on the FY2021–FY2023 lists, #89 in FY2024 and #86 in FY2025; down 3 since Jul 2024–Jun 2025.
87	Madison Electric Co Top agencies DLA (Defense Logistics Agency)	$411,605	0.1%	Rank history: not on the FY2021–FY2023 lists, #60 in FY2024 and #84 in FY2025; down 21 since Jul 2024–Jun 2025.
88	HV Technologies, Inc. Top agencies Navy (Department of the Navy)	$393,535	0.1%	Rank history: not on the FY2021–FY2025 lists; up 285 since Jul 2024–Jun 2025.
89	Kurt J Lesker Co Top agencies USAF (Department of the Air Force)	$392,030	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
90	Phaostron Instrument and Electronic Company Top agencies DLA (Defense Logistics Agency)	$382,687	0.1%	Rank history: not on the FY2021–FY2025 lists; up 83 since Jul 2024–Jun 2025.
91	Precision Filters, Inc. Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force) Navy (Department of the Navy)	$377,939	0.1%	Rank history: #67 in FY2021 and not on the FY2022–FY2025 lists; up 106 since Jul 2024–Jun 2025.
92	AB Group Inc. Top agencies NASA (National Aeronautics and Space Administration)	$367,392	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
93	Painter Tool Incorporated Top agencies Navy (Department of the Navy)	$359,040	0.1%	Rank history: not on the FY2021–FY2025 lists; up 343 since Jul 2024–Jun 2025.
94	Biocircuit Technologies Inc. Top agencies DARPA (Defense Advanced Research Projects Agency)	$350,000	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
95	Corelis, Inc. Top agencies Navy (Department of the Navy)	$349,279	0.1%	Rank history: not on the FY2021–FY2023 lists, #68 in FY2024 and #94 in FY2025; down 22 since Jul 2024–Jun 2025.
96	Compuflow Solutions LLC Top agencies Navy (Department of the Navy)	$346,500	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
97	Applied Research Associates, Inc. Top agencies USAF (Department of the Air Force)	$342,876	0.1%	Rank history: not on the FY2021–FY2024 lists and #54 in FY2025; down 23 since Jul 2024–Jun 2025.
98	Triman Industries Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$312,820	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
99	Charon Technologies LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$312,357	0.1%	Rank history: not on the FY2021–FY2023 lists, #95 in FY2024 and #73 in FY2025; up 47 since Jul 2024–Jun 2025.
100	SAFRAN Through Safran Defense & Space, Inc. Top agencies USAF (Department of the Air Force)	$307,419	0.1%	Rank history: not on the FY2021–FY2025 lists; up 114 since Jul 2024–Jun 2025.

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100 of 641 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 $578 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.
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 334515 contractors in Jul 2025–Jun 2026?

1. Astronics Test Systems Inc. ($108M), 2. Teradyne Inc. ($44.1M), 3. General Dynamics Corporation ($32.8M), 4. Total Technology, Inc. ($32M), 5. Keysight Technologies, Inc. ($31.1M), 6. Innovative Defense Technologies LLC ($30.2M), 7. The Boeing Company ($29.5M), 8. CHG Group Inc ($22M), 9. PCI Aviation LLC ($21.3M), 10. Fortive Corporation ($13.2M).

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