Top 100 Contractors in PSC AC32: National Defense R&D Services; Defense-Related Activities; Applied Research, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	The Johns Hopkins University Through The Johns Hopkins University Applied Physics Laboratory LLC Top agencies Navy (Department of the Navy) DARPA (Defense Advanced Research Projects Agency)	$275,100,375	16.5%	Rank history: #2 in FY2022, #2 in FY2023, #19 in FY2024 and not on the FY2025 list; unchanged since FY2020.
2	Alion Science and Technology Corporation Through HII Mission Technologies Corp Top agencies Navy (Department of the Navy) OSD (Office of the Secretary of Defense) Army (Department of the Army)	$98,965,574	5.9%	Rank history: #67 in FY2022, #4 in FY2023, #27 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
3	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies OSD (Office of the Secretary of Defense) DHA (Defense Health Agency) USAF (Department of the Air Force)	$96,056,388	5.8%	Rank history: #3 in FY2022, #5 in FY2023, #4 in FY2024 and #4 in FY2025; up 52 since FY2020.
4	The Pennsylvania State University Top agencies Navy (Department of the Navy)	$70,807,576	4.2%	Rank history: #7 in FY2022, #9 in FY2023, #8 in FY2024 and #8 in FY2025; up 24 since FY2020.
5	University of Texas System Through University of Texas At Austin Top agencies Navy (Department of the Navy)	$70,610,999	4.2%	Rank history: #10 in FY2022, #12 in FY2023, #21 in FY2024 and not on the FY2025 list; up 35 since FY2020.
6	Battelle Memorial Institute Top agencies OSD (Office of the Secretary of Defense) Army (Department of the Army) Navy (Department of the Navy)	$53,514,501	3.2%	Rank history: #6 in FY2022, #8 in FY2023, #11 in FY2024 and #16 in FY2025; new, not ranked in FY2020.
7	The Mitre Corporation 2 awardees Top agencies OSD (Office of the Secretary of Defense) AAFES (Department of Defense Army and Air Force Exchange Service) Navy (Department of the Navy)	$43,352,232	2.6%	Rank history: #1 in FY2022, #1 in FY2023, #1 in FY2024 and #2 in FY2025; new, not ranked in FY2020.
8	Kbr, Inc. 2 awardees, including KBR Wyle Services, LLC Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense) Navy (Department of the Navy)	$42,578,781	2.6%	Rank history: #4 in FY2022, #3 in FY2023, #13 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
9	General Dynamics Corporation Through General Dynamics Mission Systems, Inc. Top agencies Army (Department of the Army)	$42,283,992	2.5%	Rank history: #14 in FY2022, #17 in FY2023, #22 in FY2024 and #26 in FY2025; new, not ranked in FY2020.
10	Leidos Holdings, Inc. 2 awardees, including Leidos, Inc. Top agencies Navy (Department of the Navy) DTRA (Defense Threat Reduction Agency) DARPA (Defense Advanced Research Projects Agency)	$26,762,835	1.6%	Rank history: #11 in FY2022, #10 in FY2023, #12 in FY2024 and #13 in FY2025; new, not ranked in FY2020.
11	Frontier Technology Inc. Top agencies Navy (Department of the Navy)	$26,510,721	1.6%	Rank history: #13 in FY2022, #16 in FY2023, #18 in FY2024 and #24 in FY2025; new, not ranked in FY2020.
12	Lockheed Martin Corporation 3 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy) DTRA (Defense Threat Reduction Agency)	$21,036,216	1.3%	Rank history: #16 in FY2022, #7 in FY2023, #9 in FY2024 and #10 in FY2025; new, not ranked in FY2020.
13	CACI International Inc. 2 awardees, including Caci, Inc. - Federal Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$20,443,456	1.2%	Rank history: #21 in FY2022, #6 in FY2023, #7 in FY2024 and #6 in FY2025; new, not ranked in FY2020.
14	University of Washington Top agencies Navy (Department of the Navy)	$17,864,171	1.1%	Rank history: #23 in FY2022, #18 in FY2023, #20 in FY2024 and #18 in FY2025; new, not ranked in FY2020.
15	Amentum Services, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$15,328,470	0.9%	Rank history: #8 in FY2022, #14 in FY2023, #14 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
16	SRC Inc. Top agencies USAF (Department of the Air Force)	$14,869,088	0.9%	Rank history: #53 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
17	Mriglobal Top agencies Army (Department of the Army) DARPA (Defense Advanced Research Projects Agency)	$12,870,284	0.8%	Rank history: #20 in FY2022, #26 in FY2023, #69 in FY2024 and #32 in FY2025; new, not ranked in FY2020.
18	Northrop Grumman Corporation 3 awardees, including Northrop Grumman Systems Corporation Top agencies USAF (Department of the Air Force) DARPA (Defense Advanced Research Projects Agency)	$12,450,545	0.7%	Rank history: #26 in FY2022, #27 in FY2023, #40 in FY2024 and #41 in FY2025; new, not ranked in FY2020.
19	The Johns Hopkins University Applied Physics Laboratory LLC Top agencies Navy (Department of the Navy)	$12,310,425	0.7%	Rank history: #29 in FY2022, not on the FY2023 list, #2 in FY2024 and not on the FY2025 list; down 14 since FY2020.
20	Carahsoft Technology Corp Top agencies USAF (Department of the Air Force)	$10,814,380	0.6%	Rank history: #33 in FY2022, #29 in FY2023, #32 in FY2024 and #39 in FY2025; new, not ranked in FY2020.
21	American Center for Optics Manufacturing Inc. Top agencies Army (Department of the Army)	$9,954,974	0.6%	Rank history: #74 in FY2022, #34 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
22	University of Hawaii Systems Through University of Hawaii Top agencies Navy (Department of the Navy)	$9,804,307	0.6%	Rank history: #37 in FY2022, #40 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
23	University of Texas At Austin Top agencies Navy (Department of the Navy)	$9,720,000	0.6%	Rank history: not on the FY2022–FY2023 lists, #23 in FY2024 and #17 in FY2025; new, not ranked in FY2020.
24	Science Applications International Corporation Top agencies OSD (Office of the Secretary of Defense) Army (Department of the Army)	$7,521,029	0.5%	Rank history: #22 in FY2022, #15 in FY2023, #10 in FY2024 and #11 in FY2025; new, not ranked in FY2020.
25	Physical Sciences Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$7,457,992	0.4%	Rank history: #27 in FY2022, #95 in FY2023, #49 in FY2024 and #43 in FY2025; unchanged since FY2020.
26	The Survice Engineering Company LLC Top agencies OSD (Office of the Secretary of Defense) Army (Department of the Army) USAF (Department of the Air Force)	$7,211,322	0.4%	Rank history: #35 in FY2022, #47 in FY2023, #47 in FY2024 and #53 in FY2025; new, not ranked in FY2020.
27	Mantech Tsg-2 Joint Venture Top agencies OSD (Office of the Secretary of Defense) Navy (Department of the Navy)	$6,921,790	0.4%	Rank history: #12 in FY2022, #11 in FY2023, #6 in FY2024 and #7 in FY2025; new, not ranked in FY2020.
28	Innoveering LLC Top agencies Navy (Department of the Navy)	$6,070,855	0.4%	Rank history: #81 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
29	ZEL Technologies LLC Top agencies DIA (Defense Intelligence Agency)	$6,023,732	0.4%	Rank history: #47 in FY2022, #70 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
30	Aosense, Inc. Top agencies USAF (Department of the Air Force)	$5,999,673	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
31	KBR Wyle Services, LLC Top agencies OSD (Office of the Secretary of Defense) Army (Department of the Army) USAF (Department of the Air Force)	$5,911,281	0.4%	Rank history: #18 in FY2022, not on the FY2023 list, #5 in FY2024 and #3 in FY2025; new, not ranked in FY2020.
32	Georgia TECH Research Corp 2 awardees, including Georgia TECH Applied Research Corp Top agencies Navy (Department of the Navy) DARPA (Defense Advanced Research Projects Agency) USAF (Department of the Air Force)	$5,611,705	0.3%	Rank history: #17 in FY2022, #13 in FY2023, #43 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
33	Koninklijke Philips N.V. Through Philips North America LLC Top agencies DTRA (Defense Threat Reduction Agency)	$5,544,563	0.3%	Rank history: #72 in FY2022, #93 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
34	Applied Technology, Inc. Top agencies Navy (Department of the Navy)	$5,439,885	0.3%	Rank history: #44 in FY2022, #60 in FY2023 and not on the FY2024–FY2025 lists; down 30 since FY2020.
35	Jacobs Engineering Group Inc. Through Amentum Technology, Inc. Top agencies DISA (Defense Information Systems Agency)	$5,105,224	0.3%	Rank history: #46 in FY2022, #23 in FY2023, #84 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
36	Shield Ai Inc. Top agencies OSD (Office of the Secretary of Defense) USAF (Department of the Air Force)	$5,074,010	0.3%	Rank history: not on the FY2022 list, #83 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
37	Modern Technology Solutions, Inc. Top agencies Army (Department of the Army)	$4,510,678	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
38	SI2 Technologies, Inc. Top agencies USAF (Department of the Air Force)	$4,500,000	0.3%	Rank history: #50 in FY2022, #80 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
39	Advr, Inc. Top agencies USAF (Department of the Air Force)	$4,434,649	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
40	Agile Innovative Solutions Joint Venture Top agencies OSD (Office of the Secretary of Defense) USAF (Department of the Air Force) Navy (Department of the Navy)	$4,328,564	0.3%	Rank history: #34 in FY2022, #28 in FY2023, #42 in FY2024 and #57 in FY2025; new, not ranked in FY2020.
41	Skydio, Inc. Top agencies OSD (Office of the Secretary of Defense)	$4,250,000	0.3%	Rank history: not on the FY2022 list, #97 in FY2023, #80 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
42	RTX Corporation 3 awardees, including Raytheon Company and RTX BBN Technologies, Inc. Top agencies USAF (Department of the Air Force) DARPA (Defense Advanced Research Projects Agency)	$4,225,342	0.3%	Rank history: #24 in FY2022, #22 in FY2023, #38 in FY2024 and #29 in FY2025; new, not ranked in FY2020.
43	Freedom Photonics LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$3,849,847	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
44	Tangram Flex Inc. Top agencies USAF (Department of the Air Force)	$3,799,573	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
45	University of South Florida Institute of Applied Engineering, Incorporated Top agencies USSOCOM (United States Special Operations Command)	$3,722,040	0.2%	Rank history: #36 in FY2022, #46 in FY2023, #51 in FY2024 and #42 in FY2025; down 42 since FY2020.
46	Spectral Energies LLC Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$3,647,061	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
47	Omni Fed LLC Top agencies USAF (Department of the Air Force)	$3,510,373	0.2%	Rank history: not on the FY2022 list, #77 in FY2023, #64 in FY2024 and #61 in FY2025; new, not ranked in FY2020.
48	Seemann Composites, LLC 2 awardees, including Materials Sciences LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$3,494,540	0.2%	Rank history: #30 in FY2022, #69 in FY2023, #30 in FY2024 and not on the FY2025 list; down 46 since FY2020.
49	General Dynamics Mission Systems, Inc. Top agencies Navy (Department of the Navy)	$3,346,352	0.2%	Rank history: #40 in FY2022, #63 in FY2023, #85 in FY2024 and not on the FY2025 list; down 39 since FY2020.
50	Parsons Corporation 2 awardees, including Parsons Government Services Inc. Top agencies USAF (Department of the Air Force)	$3,287,000	0.2%	Rank history: #48 in FY2022, #33 in FY2023, #39 in FY2024 and #59 in FY2025; new, not ranked in FY2020.
51	Applied Research Associates, Inc. 2 awardees, including Neya Systems LLC Top agencies DTRA (Defense Threat Reduction Agency)	$3,267,813	0.2%	Rank history: #28 in FY2022, #19 in FY2023, #28 in FY2024 and #25 in FY2025; new, not ranked in FY2020.
52	Triton Systems, Inc. Top agencies USAF (Department of the Air Force) DARPA (Defense Advanced Research Projects Agency) Navy (Department of the Navy)	$3,035,580	0.2%	Rank history: not on the FY2022 list, #94 in FY2023, #98 in FY2024 and #80 in FY2025; down 1 since FY2020.
53	Ernst & Young LLP Top agencies USAF (Department of the Air Force)	$3,023,780	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
54	Stable Laser Systems Inc. Top agencies USAF (Department of the Air Force)	$2,998,064	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
55	Astin Holdings L.P. Through Lynntech Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) DARPA (Defense Advanced Research Projects Agency)	$2,969,124	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
56	Cornerstone Research Group Inc. Top agencies USAF (Department of the Air Force) DARPA (Defense Advanced Research Projects Agency)	$2,923,912	0.2%	Rank history: #54 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
57	BAE Systems Land & Armaments L.P. 3 awardees, including BAE Systems Information and Electronic Systems Integration Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$2,836,226	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
58	Strategy Robot Inc. Top agencies USAF (Department of the Air Force)	$2,699,987	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
59	Piasecki Aircraft Corp Top agencies USAF (Department of the Air Force)	$2,699,494	0.2%	Rank history: #99 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
60	Vescent Technologies Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$2,648,470	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
61	Optoxense, Inc. Top agencies USAF (Department of the Air Force) DARPA (Defense Advanced Research Projects Agency)	$2,630,265	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
62	Intelligent Fiber Optic Systems Corporation Top agencies USAF (Department of the Air Force)	$2,549,570	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
63	Graf Research Corporation Top agencies USAF (Department of the Air Force)	$2,499,532	0.1%	Rank history: not on the FY2022–FY2023 lists, #48 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
64	Systems & Technology Research LLC Top agencies OSD (Office of the Secretary of Defense)	$2,474,294	0.1%	Rank history: not on the FY2022 list, #99 in FY2023, #66 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
65	Corvid Technologies, LLC Top agencies DTRA (Defense Threat Reduction Agency) USAF (Department of the Air Force) Army (Department of the Army)	$2,462,094	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
66	Battle Sight Technologies LLC Top agencies USAF (Department of the Air Force)	$2,449,265	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
67	Simx, Inc. Top agencies USAF (Department of the Air Force)	$2,398,058	0.1%	Rank history: #78 in FY2022, #74 in FY2023, #76 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
68	Defense Engineering Corp Top agencies USAF (Department of the Air Force)	$2,344,290	0.1%	Rank history: #88 in FY2022, not on the FY2023 list, #58 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
69	HTX Labs, Inc. Top agencies USAF (Department of the Air Force)	$2,300,000	0.1%	Rank history: not on the FY2022–FY2024 lists and #66 in FY2025; new, not ranked in FY2020.
70	Galois, Inc. Top agencies DARPA (Defense Advanced Research Projects Agency) USAF (Department of the Air Force)	$2,299,670	0.1%	Rank history: not on the FY2022 list, #59 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
71	Simventions Inc. Top agencies Navy (Department of the Navy)	$2,280,899	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
72	Booz Allen Hamilton Inc. Top agencies OSD (Office of the Secretary of Defense) USAF (Department of the Air Force)	$2,280,678	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
73	Digital Angel Corporation Through Outerlink Corp Top agencies USAF (Department of the Air Force)	$2,250,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
74	Ausgar Technologies, Inc. Top agencies Navy (Department of the Navy)	$2,208,080	0.1%	Rank history: #83 in FY2022, #66 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
75	Epiq Design Solutions LLC Top agencies NSA (Department of Defense National Security Agency)	$2,164,780	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
76	Intrinsix Corp. Top agencies DARPA (Defense Advanced Research Projects Agency)	$2,149,973	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
77	Infinity Labs LLC Top agencies USAF (Department of the Air Force)	$2,049,597	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
78	Luna Innovations Incorporated Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$2,044,966	0.1%	Rank history: not on the FY2022–FY2025 lists; down 49 since FY2020.
79	Aerocine Ventures, Inc. Top agencies USAF (Department of the Air Force)	$2,008,724	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
80	Adams Communication & Engineering Technology, Inc. Top agencies Navy (Department of the Navy)	$1,979,219	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
81	Kinnami Software Corporation Top agencies USAF (Department of the Air Force)	$1,949,905	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
82	Naval Systems, Inc. Top agencies Navy (Department of the Navy)	$1,914,619	0.1%	Rank history: #85 in FY2022, #43 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
83	General Electric Company Top agencies DTRA (Defense Threat Reduction Agency)	$1,910,335	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
84	Ball Corp Through BAE Systems Space & Mission Systems Inc. Top agencies USAF (Department of the Air Force)	$1,902,961	0.1%	Rank history: #93 in FY2022, #86 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
85	Arete Associates Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,849,923	0.1%	Rank history: not on the FY2022–FY2024 lists and #47 in FY2025; down 78 since FY2020.
86	Raft LLC Top agencies USAF (Department of the Air Force)	$1,849,875	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
87	Intevac, Inc. Through Intevac Photonics Inc. Top agencies USAF (Department of the Air Force)	$1,815,061	0.1%	Rank history: #87 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
88	HII Mission Technologies Corp Top agencies OSD (Office of the Secretary of Defense) Navy (Department of the Navy)	$1,798,616	0.1%	Rank history: #9 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
89	Adyton PBC Inc. Top agencies USAF (Department of the Air Force)	$1,769,930	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
90	Bluehalo Labs, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$1,761,500	0.1%	Rank history: not on the FY2022–FY2025 lists; down 14 since FY2020.
91	Microsurgeonbot Inc. Top agencies USAF (Department of the Air Force)	$1,748,488	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
92	Mosaic Microsystems LLC Top agencies USAF (Department of the Air Force)	$1,747,672	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
93	Sedaro Corporation Top agencies USAF (Department of the Air Force)	$1,732,682	0.1%	Rank history: not on the FY2022–FY2024 lists and #81 in FY2025; new, not ranked in FY2020.
94	University of Dayton Top agencies USAF (Department of the Air Force)	$1,728,078	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
95	In-Depth Engineering Corporation Top agencies Navy (Department of the Navy)	$1,725,200	0.1%	Rank history: not on the FY2022–FY2024 lists and #71 in FY2025; down 28 since FY2020.
96	Skylight Inc. Top agencies USAF (Department of the Air Force)	$1,710,493	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
97	Nowsecure, Inc. Through Viaforensics, LLC Top agencies USAF (Department of the Air Force)	$1,710,465	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
98	Clarity Innovations LLC Top agencies USAF (Department of the Air Force)	$1,707,179	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
99	Dark Wolf Solutions, LLC Top agencies USAF (Department of the Air Force)	$1,706,531	0.1%	Rank history: not on the FY2022–FY2024 lists and #62 in FY2025; new, not ranked in FY2020.
100	Center for A New American Security, Inc. Top agencies USAF (Department of the Air Force)	$1,706,220	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.

How this ranking works

• Source: every contract action FPDS records (as published on SAM.gov) in the period, as GovTribe received it.
• Amounts are net obligations: what was obligated, less what was deobligated. Shares are of $1.67 billion obligated before deobligations, so they never pass 100%.
• Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
• Fiscal year 2021 ran Oct 1, 2020 – Sep 30, 2021. 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 FY2020. "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 FY2020 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