Top 100 Contractors in PSC N059: Installation of Equipment: Electrical and Electronic Equipment Components, FY2023

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Johnson Controls Industries 3 awardees, including Johnson Controls Building Automation Systems, LLC and Johnson Controls, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) WHS (DOD Washington Headquarters Service)	$142,332,489	13.3%	Rank history: not on the FY2021–FY2022 lists, #35 in FY2024 and not on the FY2025 list; new.
2	Siemens Aktiengesellschaft 2 awardees, including Siemens Government Technologies Inc. and Siemens Industry Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DECA (Defense Commissary Agency)	$94,331,708	8.8%	Rank history: #4 in FY2021, #5 in FY2022, #14 in FY2024 and #13 in FY2025; up 3 since FY2022.
3	BAE Systems PLC Through BAE Systems Technology Solutions & Services Inc. Top agencies Navy (Department of the Navy)	$75,602,051	7.0%	Rank history: #3 in FY2021, #4 in FY2022, #3 in FY2024 and #4 in FY2025; up 1 since FY2022.
4	Northrop Grumman Corporation Through Northrop Grumman Systems Corporation Top agencies MDA (DOD Missile Defense Agency)	$71,850,000	6.7%	Rank history: not on the FY2021 list, #2 in FY2022, #2 in FY2024 and #3 in FY2025; down 2 since FY2022.
5	M.c. Dean, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DOT (Department of Transportation)	$51,222,175	4.8%	Rank history: #9 in FY2021, #3 in FY2022, #4 in FY2024 and #2 in FY2025; down 2 since FY2022.
6	Serco Inc Top agencies Navy (Department of the Navy) Army (Department of the Army)	$42,209,609	3.9%	Rank history: not on the FY2021–FY2022 lists, #6 in FY2024 and #5 in FY2025; new.
7	Wells Global, LLC Top agencies DOT (Department of Transportation)	$40,890,379	3.8%	Rank history: not on the FY2021 list, #11 in FY2022, #16 in FY2024 and #10 in FY2025; up 4 since FY2022.
8	Spectrum Solutions Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$39,934,934	3.7%	Rank history: #12 in FY2021, #8 in FY2022, #5 in FY2024 and #6 in FY2025; unchanged since FY2022.
9	Schneider Electric Buildings Americas Inc. 2 awardees, including Schneider Electric Federal, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$35,102,376	3.3%	Rank history: #20 in FY2021, #26 in FY2022, #74 in FY2024 and not on the FY2025 list; up 17 since FY2022.
10	VT Milcom Inc. Top agencies Navy (Department of the Navy)	$33,324,782	3.1%	Rank history: #10 in FY2021, #9 in FY2022, #13 in FY2024 and #15 in FY2025; down 1 since FY2022.
11	Corbett Technology Solutions Inc. 3 awardees, including Integrated Security Solutions Inc., Pavion Corp. and Star Asset Security LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USUHS (DOD Uniformed Services University of the Health Sciences)	$31,042,394	2.9%	Rank history: #13 in FY2021, #15 in FY2022, #25 in FY2024 and not on the FY2025 list; up 4 since FY2022.
12	Cusa Consulting LLC Top agencies DOT (Department of Transportation)	$29,634,629	2.8%	Rank history: #86 in FY2021, #19 in FY2022, #11 in FY2024 and #19 in FY2025; up 7 since FY2022.
13	Huntington Ingalls Industries, Inc. Through HII Fleet Support Group LLC Top agencies Navy (Department of the Navy)	$25,644,372	2.4%	Rank history: #7 in FY2021, #10 in FY2022, #19 in FY2024 and #17 in FY2025; down 3 since FY2022.
14	Parsons Corporation 4 awardees, including Ptsi Managed Services Inc., Parsons Government Services Inc. and Williams Electric Co Inc. Top agencies Army (Department of the Army)	$24,376,589	2.3%	Rank history: #5 in FY2021, #7 in FY2022, #20 in FY2024 and #8 in FY2025; down 7 since FY2022.
15	Dewberry Design-Builders Inc. Top agencies Army (Department of the Army)	$22,456,783	2.1%	Rank history: #33 in FY2021, #17 in FY2022, not on the FY2024 list and #68 in FY2025; up 2 since FY2022.
16	Signet Technologies Inc. 2 awardees, including Convergint Technologies LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) DODEA (Department of Defense Education Activity)	$19,992,402	1.9%	Rank history: #23 in FY2021, #18 in FY2022, #21 in FY2024 and #25 in FY2025; up 2 since FY2022.
17	Serco North America (Holdings) Inc Through Serco Inc. Top agencies Navy (Department of the Navy)	$19,893,835	1.9%	Rank history: #2 in FY2021, #6 in FY2022 and not on the FY2024–FY2025 lists; down 11 since FY2022.
18	Chinook Systems, Inc. 2 awardees Top agencies Army (Department of the Army) MDA (DOD Missile Defense Agency) Navy (Department of the Navy)	$16,675,694	1.6%	Rank history: #40 in FY2021, #14 in FY2022, #10 in FY2024 and #21 in FY2025; down 4 since FY2022.
19	Chickasaw Strategic Pointe, LLC Top agencies DOT (Department of Transportation)	$11,673,968	1.1%	Rank history: not on the FY2021 list, #20 in FY2022, #28 in FY2024 and #33 in FY2025; up 1 since FY2022.
20	Kbr, Inc. Through KBR Wyle Services, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$11,343,213	1.1%	Rank history: #11 in FY2021, #13 in FY2022, #72 in FY2024 and not on the FY2025 list; down 7 since FY2022.
21	Sentinel Power Services, LLC Top agencies DOT (Department of Transportation)	$9,098,590	0.8%	Rank history: not on the FY2021 list, #16 in FY2022, #18 in FY2024 and #14 in FY2025; down 5 since FY2022.
22	Evergreen Fire Alarms LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$8,826,882	0.8%	Rank history: #15 in FY2021, #25 in FY2022, #54 in FY2024 and #39 in FY2025; up 3 since FY2022.
23	The Tatitlek Corporation Through Tatitlek Federal Services LLC Top agencies DHS (Department of Homeland Security)	$8,701,523	0.8%	Rank history: not on the FY2021 list, #28 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
24	C.n.s. Communications, LLC Top agencies DOT (Department of Transportation)	$8,316,726	0.8%	Rank history: not on the FY2021 list, #27 in FY2022, #22 in FY2024 and #40 in FY2025; up 3 since FY2022.
25	Alamo-Evergreen JV LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) DHA (Defense Health Agency)	$7,988,998	0.7%	Rank history: not on the FY2021–FY2022 lists, #8 in FY2024 and #28 in FY2025; up 306 since FY2022.
26	Urban Electric, Inc. Top agencies DOT (Department of Transportation)	$7,729,870	0.7%	Rank history: not on the FY2021 list, #21 in FY2022, #30 in FY2024 and #41 in FY2025; down 5 since FY2022.
27	Infotec Systems Corp Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$7,074,928	0.7%	Rank history: #29 in FY2021, #30 in FY2022, #49 in FY2024 and #45 in FY2025; up 3 since FY2022.
28	Barry Williams Electric Inc. Top agencies DOT (Department of Transportation)	$6,706,405	0.6%	Rank history: not on the FY2021 list, #35 in FY2022, #61 in FY2024 and #50 in FY2025; up 7 since FY2022.
29	D7, LLC Top agencies USAF (Department of the Air Force)	$6,291,395	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
30	Afognak Native Corporation 2 awardees, including Red Peak Technical Services LLC and Alutiiq Information Management, LLC Top agencies Navy (Department of the Navy)	$5,772,539	0.5%	Rank history: #46 in FY2021, #47 in FY2022 and not on the FY2024–FY2025 lists; up 17 since FY2022.
31	American Engineering Corporation Top agencies USAF (Department of the Air Force)	$5,132,526	0.5%	Rank history: not on the FY2021 list, #62 in FY2022 and not on the FY2024–FY2025 lists; up 31 since FY2022.
32	RTX Corporation 2 awardees, including Raytheon Company Top agencies Navy (Department of the Navy)	$5,116,433	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
33	Low Voltage Wiring Ltd Top agencies Army (Department of the Army) DODEA (Department of Defense Education Activity) DISA (Defense Information Systems Agency)	$5,064,955	0.5%	Rank history: #38 in FY2021, #36 in FY2022, #39 in FY2024 and #30 in FY2025; up 3 since FY2022.
34	Quad J Inc. Top agencies DOT (Department of Transportation)	$5,020,994	0.5%	Rank history: not on the FY2021 list, #24 in FY2022, #17 in FY2024 and #27 in FY2025; down 10 since FY2022.
35	Purvis Systems Inc 2 awardees Top agencies Navy (Department of the Navy)	$4,744,600	0.4%	Rank history: #26 in FY2021, #34 in FY2022, #38 in FY2024 and #35 in FY2025; down 1 since FY2022.
36	Axe Engineering Inc. Top agencies USAF (Department of the Air Force)	$4,398,759	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
37	Prime Mechanical of Wisconsin LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USDA (Department of Agriculture)	$4,174,815	0.4%	Rank history: #36 in FY2021, #40 in FY2022, #51 in FY2024 and #37 in FY2025; up 3 since FY2022.
38	SEI Group Inc Top agencies Army (Department of the Army) Navy (Department of the Navy)	$3,944,594	0.4%	Rank history: not on the FY2021–FY2022 lists, #84 in FY2024 and #58 in FY2025; new.
39	Johnson Controls Security Solutions LLC 3 awardees, including Johnson Controls Building Automation Systems, LLC Top agencies Army (Department of the Army) DOJ (Department of Justice)	$3,294,904	0.3%	Rank history: #1 in FY2021, #1 in FY2022 and not on the FY2024–FY2025 lists; down 38 since FY2022.
40	CACI International Inc. 2 awardees, including Caci, Inc. - Federal and Caci Nss, LLC Top agencies Navy (Department of the Navy) USDA (Department of Agriculture)	$2,965,057	0.3%	Rank history: #77 in FY2021, not on the FY2022 list, #23 in FY2024 and #12 in FY2025; up 86 since FY2022.
41	General Dynamics Corporation Through General Dynamics Information Technology, Inc. Top agencies Navy (Department of the Navy)	$2,747,323	0.3%	Rank history: not on the FY2021 list, #31 in FY2022, #45 in FY2024 and #92 in FY2025; down 10 since FY2022.
42	Argus CJW JV 3 LLC Top agencies Navy (Department of the Navy)	$2,699,866	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
43	Cardinal Marine Group Inc. Top agencies Army (Department of the Army)	$2,297,314	0.2%	Rank history: #32 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
44	Emridge Technology LLC Top agencies USAF (Department of the Air Force)	$2,279,695	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
45	Chugach Technical Solutions LLC Top agencies DHS (Department of Homeland Security)	$2,247,709	0.2%	Rank history: #27 in FY2021, #41 in FY2022 and not on the FY2024–FY2025 lists; down 4 since FY2022.
46	Wildflower International, Ltd. Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$2,010,878	0.2%	Rank history: #21 in FY2021, #33 in FY2022 and not on the FY2024–FY2025 lists; down 13 since FY2022.
47	Matai Services, LLC Top agencies DOT (Department of Transportation)	$2,003,380	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 96 since FY2022.
48	Indra Sistemas, Sociedad Anónima Through Minsait Acs, Inc. Top agencies USAF (Department of the Air Force)	$1,959,773	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
49	Seneca Federal Solutions, LLC Top agencies Army (Department of the Army)	$1,778,085	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
50	Cambridge International Systems, Inc. Top agencies Navy (Department of the Navy)	$1,709,658	0.2%	Rank history: #69 in FY2021, #73 in FY2022, #93 in FY2024 and #29 in FY2025; up 23 since FY2022.
51	Electripro, Inc. Top agencies DHS (Department of Homeland Security)	$1,671,613	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
52	Valkyrie Enterprises, LLC Top agencies Army (Department of the Army) WHS (DOD Washington Headquarters Service) DOS (Department of State)	$1,642,235	0.2%	Rank history: #56 in FY2021, #46 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
53	Accelint Global Inc. Top agencies Navy (Department of the Navy)	$1,552,553	0.1%	Rank history: not on the FY2021–FY2022 lists, #79 in FY2024 and not on the FY2025 list; new.
54	Coho Construction Management LLC Top agencies USAF (Department of the Air Force)	$1,187,575	0.1%	Rank history: not on the FY2021–FY2022 lists, #60 in FY2024 and not on the FY2025 list; new.
55	EPC Service Inc Top agencies Army (Department of the Army) Navy (Department of the Navy)	$1,144,025	0.1%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2024 and #90 in FY2025; new.
56	Credence Management Solutions Limited Liability Company Top agencies DHS (Department of Homeland Security)	$1,092,308	0.1%	Rank history: #51 in FY2021, #52 in FY2022 and not on the FY2024–FY2025 lists; down 4 since FY2022.
57	Phoenix Integrated Technologies Ltd Top agencies Army (Department of the Army)	$1,054,647	0.1%	Rank history: not on the FY2021–FY2022 lists, #52 in FY2024 and not on the FY2025 list; up 276 since FY2022.
58	Drew Investment Group, LLC Top agencies Army (Department of the Army) DFAS (Defense Finance and Accounting Service)	$999,270	0.1%	Rank history: not on the FY2021 list, #49 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
59	Lockheed Martin Corporation Top agencies Navy (Department of the Navy)	$886,751	0.1%	Rank history: #35 in FY2021, #37 in FY2022, #40 in FY2024 and not on the FY2025 list; down 22 since FY2022.
60	Collins-Hammond Electrical Contractors, Inc. Top agencies DOT (Department of Transportation)	$875,243	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 122 since FY2022.
61	Alvarez LLC Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$861,580	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
62	DK Cornerstone LLC Top agencies VA (Department of Veterans Affairs)	$856,130	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
63	Indyne, Inc. Top agencies Army (Department of the Army)	$805,402	0.1%	Rank history: #22 in FY2021, not on the FY2022 list, #56 in FY2024 and not on the FY2025 list; returned.
64	Chickasaw Aerospace, LLC Top agencies USAF (Department of the Air Force)	$769,210	0.1%	Rank history: not on the FY2021–FY2022 lists, #26 in FY2024 and #18 in FY2025; new.
65	Systems Engineering Support Co. Top agencies Navy (Department of the Navy)	$755,707	0.1%	Rank history: #31 in FY2021, #39 in FY2022 and not on the FY2024–FY2025 lists; down 26 since FY2022.
66	Conduit Space Recovery Systems LLC Top agencies USAF (Department of the Air Force)	$747,000	0.1%	Rank history: not on the FY2021–FY2022 lists, #80 in FY2024 and not on the FY2025 list; new.
67	11 Series Energy, Inc. Top agencies DHS (Department of Homeland Security)	$714,581	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
68	Centurum Inc. Through Centurum Information Technology Inc. Top agencies Navy (Department of the Navy)	$711,107	0.1%	Rank history: #58 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
69	Bami Technologies LLC Top agencies Army (Department of the Army)	$701,044	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
70	Hawaii Energy Systems LLC Top agencies USAF (Department of the Air Force)	$655,441	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
71	Security Risk Solutions Inc. Top agencies Army (Department of the Army)	$632,950	0.1%	Rank history: not on the FY2021–FY2022 lists, #82 in FY2024 and #82 in FY2025; new.
72	US West Corp Top agencies Army (Department of the Army)	$572,605	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
73	Four Points Technology, L.L.C. Top agencies VA (Department of Veterans Affairs)	$530,578	<0.1%	Rank history: #71 in FY2021, #50 in FY2022 and not on the FY2024–FY2025 lists; down 23 since FY2022.
74	Hyperion, Inc. Top agencies DHA (Defense Health Agency)	$524,642	<0.1%	Rank history: #73 in FY2021, #68 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
75	Gardner Zemke Co Top agencies Army (Department of the Army)	$521,650	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
76	Leidos Holdings, Inc. Through Leidos, Inc. Top agencies USAF (Department of the Air Force)	$521,049	<0.1%	Rank history: #79 in FY2021, not on the FY2022 list, not on the FY2024 list and #52 in FY2025; returned.
77	Lee Hartman & Sons, Inc. Top agencies USITC (International Trade Commission)	$500,000	<0.1%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2024 and not on the FY2025 list; new.
78	I3 Federal LLC Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$489,245	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
79	Deco Data Group LLC Top agencies Treasury (Department of the Treasury)	$474,700	<0.1%	Rank history: not on the FY2021 list, #69 in FY2022 and not on the FY2024–FY2025 lists; down 10 since FY2022.
80	Martek-Aci JV Top agencies Army (Department of the Army)	$465,053	<0.1%	Rank history: not on the FY2021 list, #83 in FY2022 and not on the FY2024–FY2025 lists; up 3 since FY2022.
81	The Port Graham Corporation Through Port Graham Development Corporation Top agencies DOT (Department of Transportation)	$428,079	<0.1%	Rank history: not on the FY2021 list, #86 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
82	The Blackstar Companies, LLC Top agencies DHS (Department of Homeland Security)	$424,758	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
83	Kekolu Contracting LLC Top agencies USAF (Department of the Air Force)	$424,430	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
84	Lvsi Corporation Top agencies USAF (Department of the Air Force)	$421,086	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 107 since FY2022.
85	Trandes Corp Top agencies Navy (Department of the Navy)	$420,916	<0.1%	Rank history: #49 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
86	Prime Projects International (Construction ) Limited Top agencies Navy (Department of the Navy)	$415,890	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
87	Kaiva Services, LLC Top agencies USAF (Department of the Air Force)	$410,976	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
88	HQE Systems, Inc. Top agencies USAF (Department of the Air Force)	$399,392	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
89	Koman Advantage, LLC Top agencies USAF (Department of the Air Force) DOT (Department of Transportation)	$385,239	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
90	Trulink LLC Top agencies USAF (Department of the Air Force)	$381,572	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
91	Inter-Op.net, Inc. Top agencies DHS (Department of Homeland Security)	$330,763	<0.1%	Rank history: #70 in FY2021, not on the FY2022 list, not on the FY2024 list and #93 in FY2025; returned.
92	Kituwah Services, LLC Top agencies Army (Department of the Army) DHS (Department of Homeland Security)	$329,837	<0.1%	Rank history: not on the FY2021 list, #65 in FY2022, not on the FY2024 list and #74 in FY2025; down 27 since FY2022.
93	Texas Electrical & Testing Services LLC Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico)	$320,265	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 11 since FY2022.
94	Prism Maritime, Inc. Top agencies Navy (Department of the Navy)	$315,126	<0.1%	Rank history: #16 in FY2021, not on the FY2022 list, not on the FY2024 list and #76 in FY2025; returned.
95	Schneider Electric USA Inc. Top agencies VA (Department of Veterans Affairs)	$310,717	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
96	CTC Technologies Inc. Top agencies Treasury (Department of the Treasury)	$289,789	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
97	Cynergy Professional Systems LLC Top agencies VA (Department of Veterans Affairs)	$288,492	<0.1%	Rank history: not on the FY2021 list, #45 in FY2022 and not on the FY2024–FY2025 lists; down 52 since FY2022.
98	DH Technologies, Inc. Top agencies USAF (Department of the Air Force) Treasury (Department of the Treasury)	$285,369	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #95 in FY2025; new.
99	Metro Accounting & Professional Services, LLC Top agencies USAF (Department of the Air Force)	$283,641	<0.1%	Rank history: not on the FY2021–FY2022 lists, #89 in FY2024 and not on the FY2025 list; new.
100	Dynamic Systems Inc. Top agencies Army (Department of the Army)	$273,875	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.

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 $1.07 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 2023 ran Oct 1, 2022 – Sep 30, 2023. 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 FY2022. "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 FY2022 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