Top 95 Contractors in PSC 5825: Radio Navigation Equipment, Except Airborne, Aug 2025–Jul 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	L3Harris Technologies, Inc. 8 awardees, including L3Harris Global Communications, Inc. and L3 Technologies, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$340,780,649	43.7%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since Aug 2024–Jul 2025.
2	RTX Corporation 5 awardees, including Rockwell Collins, Inc., Raytheon Company and Arinc Incorporated Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$136,694,579	17.5%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023, #2 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
3	TRX Systems, Inc. Top agencies Army (Department of the Army)	$119,592,402	15.3%	Rank history: not on the FY2021–FY2023 lists, #5 in FY2024 and #3 in FY2025; unchanged since Aug 2024–Jul 2025.
4	Thales Defense & Security Inc. 2 awardees, including Thales Usa, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$71,637,290	9.2%	Rank history: not on the FY2021–FY2022 lists, #3 in FY2023, #3 in FY2024 and #4 in FY2025; up 25 since Aug 2024–Jul 2025.
5	BAE Systems 3 awardees, including BAE Systems Information and Electronic Systems Integration Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$18,577,886	2.4%	Rank history: not on the FY2021–FY2024 lists and #8 in FY2025; new, not ranked in Aug 2024–Jul 2025.
6	Sechan Electronics Inc. Top agencies Navy (Department of the Navy)	$15,524,662	2.0%	Rank history: #5 in FY2021, #12 in FY2022, #11 in FY2023, #13 in FY2024 and #13 in FY2025; up 7 since Aug 2024–Jul 2025.
7	General Dynamics Corporation Through General Dynamics Mission Systems, Inc. Top agencies Navy (Department of the Navy)	$13,632,238	1.7%	Rank history: #6 in FY2021, #5 in FY2022, #8 in FY2023, #6 in FY2024 and #9 in FY2025; down 3 since Aug 2024–Jul 2025.
8	Systems Engineering Support Co. Top agencies Navy (Department of the Navy)	$9,042,706	1.2%	Rank history: #53 in FY2021, #9 in FY2022, #10 in FY2023, #14 in FY2024 and #6 in FY2025; down 3 since Aug 2024–Jul 2025.
9	Cynergy Professional Systems LLC Top agencies DOJ (Department of Justice) Treasury (Department of the Treasury) DOS (Department of State)	$6,654,782	0.9%	Rank history: #19 in FY2021, #13 in FY2022, #9 in FY2023, #8 in FY2024 and #11 in FY2025; down 3 since Aug 2024–Jul 2025.
10	Motorola Solutions, Inc. Top agencies Treasury (Department of the Treasury) Navy (Department of the Navy) DOJ (Department of Justice)	$6,281,940	0.8%	Rank history: #8 in FY2021, #19 in FY2022, not on the FY2023–FY2024 lists and #18 in FY2025; new, not ranked in Aug 2024–Jul 2025.
11	FCN, Inc. Top agencies Navy (Department of the Navy)	$4,950,193	0.6%	Rank history: not on the FY2021–FY2023 lists, #22 in FY2024 and #12 in FY2025; up 10 since Aug 2024–Jul 2025.
12	Leonardo S.p.A. 2 awardees, including Laurel Technologies Partnership Top agencies Navy (Department of the Navy)	$4,207,087	0.5%	Rank history: #7 in FY2021, #14 in FY2022, #16 in FY2023, #15 in FY2024 and #10 in FY2025; down 2 since Aug 2024–Jul 2025.
13	Teledyne Flir Unmanned Ground Systems Inc Through Teledyne Flir Maritime US, Inc. Top agencies DHS (Department of Homeland Security)	$3,797,876	0.5%	Rank history: not on the FY2021–FY2022 lists, #22 in FY2023, #18 in FY2024 and #16 in FY2025; up 4 since Aug 2024–Jul 2025.
14	Ewing Electronics, Inc. Top agencies USAF (Department of the Air Force)	$2,741,269	0.4%	Rank history: #82 in FY2021, #20 in FY2022, #23 in FY2023, #20 in FY2024 and #19 in FY2025; up 4 since Aug 2024–Jul 2025.
15	The Boeing Company Top agencies Navy (Department of the Navy)	$2,422,745	0.3%	Rank history: #15 in FY2021, #16 in FY2022, #21 in FY2023, #19 in FY2024 and #14 in FY2025; down 1 since Aug 2024–Jul 2025.
16	New TECH Solutions, Inc. Top agencies Treasury (Department of the Treasury) DOS (Department of State) USAF (Department of the Air Force)	$1,861,093	0.2%	Rank history: #4 in FY2021, #31 in FY2022, #32 in FY2023, #41 in FY2024 and #21 in FY2025; up 49 since Aug 2024–Jul 2025.
17	Relm Communications Inc. Top agencies USDA (Department of Agriculture)	$1,721,620	0.2%	Rank history: not on the FY2021–FY2024 lists and #23 in FY2025; new, not ranked in Aug 2024–Jul 2025.
18	AEG Group Inc Top agencies USAF (Department of the Air Force)	$1,320,315	0.2%	Rank history: #27 in FY2021, #18 in FY2022, #18 in FY2023, #30 in FY2024 and #22 in FY2025; up 7 since Aug 2024–Jul 2025.
19	Trimble Inc. Top agencies DHS (Department of Homeland Security)	$848,537	0.1%	Rank history: #50 in FY2021, #86 in FY2022, not on the FY2023–FY2024 lists and #26 in FY2025; new, not ranked in Aug 2024–Jul 2025.
20	Knowmadics Inc Top agencies DOJ (Department of Justice)	$820,000	0.1%	Rank history: not on the FY2021–FY2023 lists, #28 in FY2024 and #27 in FY2025; up 6 since Aug 2024–Jul 2025.
21	Epiq Design Solutions LLC Top agencies Army (Department of the Army)	$625,124	0.1%	Rank history: not on the FY2021 list, #70 in FY2022, #45 in FY2023, #27 in FY2024 and #69 in FY2025; new, not ranked in Aug 2024–Jul 2025.
22	CDW Government LLC Top agencies Army (Department of the Army)	$587,192	0.1%	Rank history: not on the FY2021–FY2024 lists and #29 in FY2025; new, not ranked in Aug 2024–Jul 2025.
23	TTM Technologies, Inc. Through Telephonics Corporation Top agencies Army (Department of the Army)	$498,421	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
24	CACI International Inc. Through Caci, Inc. - Federal Top agencies Army (Department of the Army)	$479,550	0.1%	Rank history: #20 in FY2021, #33 in FY2022, not on the FY2023 list, #29 in FY2024 and not on the FY2025 list; up 3 since Aug 2024–Jul 2025.
25	Bestpass, Inc. Top agencies DCSA (Defense Counterintelligence and Security Agency)	$437,510	0.1%	Rank history: not on the FY2021–FY2023 lists, #36 in FY2024 and #55 in FY2025; up 10 since Aug 2024–Jul 2025.
26	Nvis Communications, LLC Top agencies DOS (Department of State)	$434,158	0.1%	Rank history: not on the FY2021–FY2023 lists, #24 in FY2024 and #30 in FY2025; up 2 since Aug 2024–Jul 2025.
27	Gigacom Inc. Top agencies USAF (Department of the Air Force)	$408,000	0.1%	Rank history: not on the FY2021–FY2023 lists, #31 in FY2024 and #61 in FY2025; up 34 since Aug 2024–Jul 2025.
28	Briartek Inc. Top agencies Navy (Department of the Navy)	$405,700	0.1%	Rank history: #23 in FY2021, not on the FY2022 list, #40 in FY2023, #40 in FY2024 and #50 in FY2025; up 19 since Aug 2024–Jul 2025.
29	Sierra Nevada Company, LLC Top agencies USAF (Department of the Air Force)	$377,000	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
30	Analytic Services Inc. Through Advanced Technology International Top agencies WHS (DOD Washington Headquarters Service)	$371,414	<0.1%	Rank history: not on the FY2021 list, #6 in FY2022, #15 in FY2023, not on the FY2024 list and #24 in FY2025; new, not ranked in Aug 2024–Jul 2025.
31	Northrop Grumman Systems Corporation 2 awardees Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$327,730	<0.1%	Rank history: not on the FY2021 list, #44 in FY2022, #93 in FY2023, #59 in FY2024 and #31 in FY2025; up 21 since Aug 2024–Jul 2025.
32	Airbus Americas Inc. Through Airbus DS Government Solutions Inc. Top agencies Army (Department of the Army)	$292,754	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
33	Software Information Resource Corp Top agencies USAF (Department of the Air Force)	$284,448	<0.1%	Rank history: not on the FY2021–FY2022 lists, #49 in FY2023, #86 in FY2024 and #20 in FY2025; down 13 since Aug 2024–Jul 2025.
34	Vectornav Technologies LLC Top agencies Navy (Department of the Navy)	$280,000	<0.1%	Rank history: not on the FY2021–FY2022 lists, #58 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
35	Viasat Inc. Top agencies USAF (Department of the Air Force)	$233,423	<0.1%	Rank history: #14 in FY2021, #49 in FY2022, not on the FY2023–FY2024 lists and #35 in FY2025; new, not ranked in Aug 2024–Jul 2025.
36	Govage, Inc. Top agencies USAF (Department of the Air Force)	$220,247	<0.1%	Rank history: not on the FY2021–FY2023 lists, #64 in FY2024 and #62 in FY2025; up 15 since Aug 2024–Jul 2025.
37	Viken Detection Corporation Top agencies DOJ (Department of Justice)	$219,770	<0.1%	Rank history: not on the FY2021–FY2024 lists and #36 in FY2025; new, not ranked in Aug 2024–Jul 2025.
38	Fairwinds Technologies LLC Top agencies Navy (Department of the Navy) USDA (Department of Agriculture)	$219,024	<0.1%	Rank history: not on the FY2021 list, #36 in FY2022, not on the FY2023–FY2024 lists and #46 in FY2025; new, not ranked in Aug 2024–Jul 2025.
39	Enterprise Technology Solutions, Inc. Top agencies Navy (Department of the Navy)	$209,934	<0.1%	Rank history: not on the FY2021–FY2024 lists and #37 in FY2025; new, not ranked in Aug 2024–Jul 2025.
40	Rohde & Schwarz GMBH & Co. Kommanditgesellschaft Through Rohde & Schwarz Usa, Inc. Top agencies Navy (Department of the Navy)	$205,272	<0.1%	Rank history: not on the FY2021 list, #58 in FY2022, #29 in FY2023, #53 in FY2024 and #38 in FY2025; up 9 since Aug 2024–Jul 2025.
41	Strategic Communications LLC Top agencies USDA (Department of Agriculture)	$173,290	<0.1%	Rank history: not on the FY2021–FY2022 lists, #79 in FY2023, not on the FY2024 list and #45 in FY2025; new, not ranked in Aug 2024–Jul 2025.
42	Virginia Electronic Systems, Inc. Top agencies DHS (Department of Homeland Security)	$164,464	<0.1%	Rank history: not on the FY2021–FY2022 lists, #17 in FY2023, #35 in FY2024 and not on the FY2025 list; up 53 since Aug 2024–Jul 2025.
43	Vence Corp Top agencies USDA (Department of Agriculture)	$144,800	<0.1%	Rank history: not on the FY2021–FY2023 lists, #79 in FY2024 and #43 in FY2025; up 36 since Aug 2024–Jul 2025.
44	Advanced Computer Concepts, Inc. Top agencies DOJ (Department of Justice) Navy (Department of the Navy)	$139,838	<0.1%	Rank history: #18 in FY2021, #34 in FY2022, #30 in FY2023, #33 in FY2024 and not on the FY2025 list; down 8 since Aug 2024–Jul 2025.
45	Harris Larry Top agencies DOS (Department of State)	$123,670	<0.1%	Rank history: #84 in FY2021, #48 in FY2022, #71 in FY2023, #56 in FY2024 and #47 in FY2025; up 9 since Aug 2024–Jul 2025.
46	Globalstar, Inc. Through Spot LLC Top agencies DOJ (Department of Justice) DOI (Department of the Interior)	$119,345	<0.1%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2023, #87 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
47	The Winvale Group, LLC Top agencies USDA (Department of Agriculture)	$118,060	<0.1%	Rank history: not on the FY2021–FY2022 lists, #41 in FY2023, #57 in FY2024 and #51 in FY2025; new, not ranked in Aug 2024–Jul 2025.
48	Forcys Inc. Top agencies Navy (Department of the Navy)	$113,427	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
49	Victory Global Solutions, Inc. Top agencies USAF (Department of the Air Force)	$104,908	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
50	Aantilia LLC Top agencies USAF (Department of the Air Force)	$99,999	<0.1%	Rank history: not on the FY2021–FY2023 lists, #52 in FY2024 and #57 in FY2025; new, not ranked in Aug 2024–Jul 2025.
51	Ferbak, Inc. Top agencies Army (Department of the Army)	$91,630	<0.1%	Rank history: #43 in FY2021, not on the FY2022–FY2024 lists and #59 in FY2025; new, not ranked in Aug 2024–Jul 2025.
52	H.l. Dalis, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$90,857	<0.1%	Rank history: #51 in FY2021, not on the FY2022–FY2024 lists and #52 in FY2025; up 18 since Aug 2024–Jul 2025.
53	Atlantic Diving Supply, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$89,377	<0.1%	Rank history: not on the FY2021–FY2024 lists and #34 in FY2025; down 19 since Aug 2024–Jul 2025.
54	Communications Professionals Inc. Top agencies Army (Department of the Army)	$87,313	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
55	Veterans Aerospace LLC Top agencies DLA (Defense Logistics Agency)	$86,400	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
56	Ensil Technical Services Inc. Top agencies DHS (Department of Homeland Security)	$82,224	<0.1%	Rank history: not on the FY2021–FY2024 lists and #60 in FY2025; new, not ranked in Aug 2024–Jul 2025.
57	Exail Defense Systems, Inc. Top agencies Navy (Department of the Navy)	$81,720	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
58	Pccw Global, Inc. Top agencies DOT (Department of Transportation)	$81,000	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
59	ACG Systems, Inc. Top agencies USAF (Department of the Air Force)	$74,526	<0.1%	Rank history: #24 in FY2021, #92 in FY2022, #25 in FY2023, #25 in FY2024 and #33 in FY2025; down 29 since Aug 2024–Jul 2025.
60	California Surveying & Drafting Supply, Inc. Top agencies Navy (Department of the Navy)	$65,976	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
61	Tilt Autonomy, Inc. Top agencies Navy (Department of the Navy)	$62,719	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
62	Testforce Usa, Inc. Top agencies USAF (Department of the Air Force)	$57,814	<0.1%	Rank history: not on the FY2021–FY2024 lists and #64 in FY2025; new, not ranked in Aug 2024–Jul 2025.
63	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency)	$57,220	<0.1%	Rank history: not on the FY2021–FY2023 lists, #60 in FY2024 and #53 in FY2025; down 5 since Aug 2024–Jul 2025.
64	Strohman Enterprise Inc Top agencies USAF (Department of the Air Force) DOI (Department of the Interior)	$55,039	<0.1%	Rank history: not on the FY2021–FY2022 lists, #33 in FY2023, not on the FY2024 list and #85 in FY2025; up 28 since Aug 2024–Jul 2025.
65	Pathtek.net Top agencies USAF (Department of the Air Force)	$54,771	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
66	Undersea Systems International, Inc. Top agencies Navy (Department of the Navy)	$48,469	<0.1%	Rank history: not on the FY2021–FY2024 lists and #66 in FY2025; new, not ranked in Aug 2024–Jul 2025.
67	Milwaukee Cylinder Inc. Top agencies Navy (Department of the Navy)	$48,387	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
68	Westsim Engineering, Inc. Top agencies DLA (Defense Logistics Agency)	$39,396	<0.1%	Rank history: not on the FY2021–FY2022 lists, #88 in FY2023, not on the FY2024 list and #78 in FY2025; up 19 since Aug 2024–Jul 2025.
69	Racelogic USA Corp Top agencies USAF (Department of the Air Force)	$35,836	<0.1%	Rank history: not on the FY2021–FY2024 lists and #71 in FY2025; new, not ranked in Aug 2024–Jul 2025.
70	Dumbo Defense Inc. Through Dresser-Argus, Inc. Top agencies DLA (Defense Logistics Agency)	$34,768	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
71	Wrigglesworth Enterprises Inc. Top agencies USAF (Department of the Air Force)	$31,592	<0.1%	Rank history: not on the FY2021–FY2024 lists and #73 in FY2025; new, not ranked in Aug 2024–Jul 2025.
72	Science Applications International Corporation Top agencies Army (Department of the Army)	$30,368	<0.1%	Rank history: not on the FY2021–FY2024 lists and #75 in FY2025; new, not ranked in Aug 2024–Jul 2025.
73	Ahlers Aerospace, Inc. Through Executive Instruments, Inc. Top agencies USAF (Department of the Air Force)	$27,884	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
74	Shine Micro, Inc. Top agencies DOT (Department of Transportation)	$27,156	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
75	Dark Wolf Ventures LLC Top agencies DOS (Department of State)	$24,941	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
76	Foxtrot Research Corp Top agencies Navy (Department of the Navy)	$23,199	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
77	Rope Works LLC Top agencies USAF (Department of the Air Force)	$23,000	<0.1%	Rank history: not on the FY2021–FY2023 lists, #77 in FY2024 and not on the FY2025 list; unchanged since Aug 2024–Jul 2025.
78	Alliance Global TECH Inc. Top agencies DOS (Department of State)	$19,881	<0.1%	Rank history: not on the FY2021–FY2024 lists and #81 in FY2025; new, not ranked in Aug 2024–Jul 2025.
79	Advanced Technical Corporation Top agencies DLA (Defense Logistics Agency)	$18,184	<0.1%	Rank history: not on the FY2021 list, #100 in FY2022, #91 in FY2023, not on the FY2024 list and #72 in FY2025; up 7 since Aug 2024–Jul 2025.
80	BNC Corp. Top agencies DFAS (Defense Finance and Accounting Service)	$17,692	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
81	At&T Inc. Through Att Mobility LLC Top agencies VA (Department of Veterans Affairs)	$16,236	<0.1%	Rank history: not on the FY2021–FY2023 lists, #92 in FY2024 and #89 in FY2025; up 12 since Aug 2024–Jul 2025.
82	Innovasea Systems, Inc. Top agencies Army (Department of the Army)	$15,884	<0.1%	Rank history: not on the FY2021–FY2024 lists and #86 in FY2025; new, not ranked in Aug 2024–Jul 2025.
83	Edgeone LLC Top agencies Commerce (Department of Commerce)	$15,595	<0.1%	Rank history: not on the FY2021–FY2024 lists and #88 in FY2025; new, not ranked in Aug 2024–Jul 2025.
84	Vertebrate Systems LLC Top agencies DOI (Department of the Interior)	$14,946	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
85	Washoe County Top agencies USAF (Department of the Air Force)	$13,904	<0.1%	Rank history: not on the FY2021–FY2024 lists and #90 in FY2025; new, not ranked in Aug 2024–Jul 2025.
86	United Sar, Inc. Top agencies DLA (Defense Logistics Agency)	$11,962	<0.1%	Rank history: not on the FY2021–FY2024 lists and #98 in FY2025; up 20 since Aug 2024–Jul 2025.
87	BAE Systems Information and Electronic Systems Integration Inc. Top agencies Army (Department of the Army)	$11,938	<0.1%	Rank history: not on the FY2021–FY2025 lists; down 28 since Aug 2024–Jul 2025.
88	GPS Insight, Inc.	$8,683	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
89	Skymira LLC Top agencies USDA (Department of Agriculture)	$8,590	<0.1%	Rank history: not on the FY2021–FY2024 lists and #99 in FY2025; new, not ranked in Aug 2024–Jul 2025.
90	Vcloud GOV Inc. Top agencies Navy (Department of the Navy)	$7,857	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
91	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$7,680	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 30 since Aug 2024–Jul 2025.
92	3SI Security Systems Inc. Through Coverttrack Group Inc. Top agencies DOJ (Department of Justice)	$7,020	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
93	MCO Solutions, Inc. Top agencies DLA (Defense Logistics Agency)	$4,275	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
94	Birdon America Inc. Top agencies DLA (Defense Logistics Agency)	$1,056	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 16 since Aug 2024–Jul 2025.
95	Donatini, Inc. Top agencies DLA (Defense Logistics Agency)	$937	<0.1%	Rank history: not on the FY2021 list, #63 in FY2022, #59 in FY2023, #85 in FY2024 and not on the FY2025 list; up 24 since Aug 2024–Jul 2025.

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 $779 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. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
• Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
• Rank changes compare with Aug 2024–Jul 2025. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
• Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list.
• Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers