Top 100 Contractors in PSC N099: Installation of Equipment: Miscellaneous, Aug 2025–Jul 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Cianbro Corporation Top agencies Navy (Department of the Navy)	$76,393,977	50.8%	Rank history: not on the FY2021–FY2024 lists and #1 in FY2025; up 1 since Aug 2024–Jul 2025.
2	Trace Systems, Inc. Top agencies Army (Department of the Army)	$16,538,751	11.0%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
3	Mag DS Corp Top agencies Navy (Department of the Navy)	$11,794,341	7.8%	Rank history: not on the FY2021–FY2024 lists and #2 in FY2025; unchanged since Aug 2024–Jul 2025.
4	Seneca Strategic Partners, LLC Top agencies OSD (Office of the Secretary of Defense)	$8,429,069	5.6%	Rank history: not on the FY2021 list, #36 in FY2022, not on the FY2023 list, #2 in FY2024 and #4 in FY2025; up 1 since Aug 2024–Jul 2025.
5	Window Film Depot Inc. Top agencies Army (Department of the Army)	$5,343,951	3.6%	Rank history: not on the FY2021–FY2023 lists, #3 in FY2024 and #8 in FY2025; down 1 since Aug 2024–Jul 2025.
6	Prime Projects International (Construction ) Limited Top agencies Navy (Department of the Navy) DOS (Department of State)	$4,636,519	3.1%	Rank history: #42 in FY2021, not on the FY2022–FY2024 lists and #5 in FY2025; new, not ranked in Aug 2024–Jul 2025.
7	T&H Services, LLC Top agencies DOS (Department of State)	$2,100,000	1.4%	Rank history: not on the FY2021–FY2023 lists, #17 in FY2024 and not on the FY2025 list; up 2 since Aug 2024–Jul 2025.
8	KBR Wyle Services LLC Through KBR Services, LLC Top agencies Navy (Department of the Navy)	$1,796,553	1.2%	Rank history: not on the FY2021–FY2023 lists, #1 in FY2024 and #3 in FY2025; down 7 since Aug 2024–Jul 2025.
9	Garco Wemco A Joint Venture Top agencies Army (Department of the Army)	$1,505,235	1.0%	Rank history: not on the FY2021 list, #28 in FY2022, #7 in FY2023 and not on the FY2024–FY2025 lists; up 146 since Aug 2024–Jul 2025.
10	SDV Office Systems LLC Top agencies VA (Department of Veterans Affairs)	$1,221,100	0.8%	Rank history: not on the FY2021–FY2022 lists, #17 in FY2023, not on the FY2024 list and #11 in FY2025; up 6 since Aug 2024–Jul 2025.
11	System 2 / 90, Inc. Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs)	$1,110,081	0.7%	Rank history: not on the FY2021–FY2022 lists, #73 in FY2023, #18 in FY2024 and #45 in FY2025; up 11 since Aug 2024–Jul 2025.
12	M.c. Dean, Inc. Top agencies DOD (Department of Defense)	$1,084,992	0.7%	Rank history: #95 in FY2021, not on the FY2022–FY2024 lists and #10 in FY2025; up 7 since Aug 2024–Jul 2025.
13	Vertiv Corporation Top agencies DOJ (Department of Justice)	$874,396	0.6%	Rank history: not on the FY2021–FY2023 lists, #13 in FY2024 and #7 in FY2025; down 5 since Aug 2024–Jul 2025.
14	BAE Systems Through BAE Systems Technology Solutions & Services Inc. Top agencies DLA (Defense Logistics Agency)	$859,069	0.6%	Rank history: not on the FY2021–FY2024 lists and #12 in FY2025; up 44 since Aug 2024–Jul 2025.
15	Illinois Tool Works Inc. 2 awardees, including MTS Systems Corporation Top agencies Army (Department of the Army)	$763,830	0.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
16	Midnight Sun-Centennial Kirratchiaq JV, LLC Top agencies USAF (Department of the Air Force)	$761,011	0.5%	Rank history: not on the FY2021–FY2023 lists, #5 in FY2024 and #28 in FY2025; down 9 since Aug 2024–Jul 2025.
17	Kwaan-Nasco Joint Venture Top agencies USAF (Department of the Air Force)	$623,788	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
18	Sigma Defense Systems LLC Top agencies Navy (Department of the Navy)	$609,609	0.4%	Rank history: #17 in FY2021, #7 in FY2022, #10 in FY2023, #24 in FY2024 and #16 in FY2025; up 3 since Aug 2024–Jul 2025.
19	Englobal Government Services Inc. Top agencies DLA (Defense Logistics Agency)	$488,209	0.3%	Rank history: not on the FY2021–FY2023 lists, #15 in FY2024 and #22 in FY2025; up 75 since Aug 2024–Jul 2025.
20	Ethic Tech, LLC Top agencies Army (Department of the Army)	$452,650	0.3%	Rank history: not on the FY2021 list, #17 in FY2022, #15 in FY2023, #7 in FY2024 and #14 in FY2025; down 9 since Aug 2024–Jul 2025.
21	Integration Technologies Group, Inc. Top agencies DHS (Department of Homeland Security)	$437,073	0.3%	Rank history: not on the FY2021–FY2024 lists and #29 in FY2025; new, not ranked in Aug 2024–Jul 2025.
22	Innox LLC Top agencies Navy (Department of the Navy)	$432,000	0.3%	Rank history: not on the FY2021–FY2024 lists and #9 in FY2025; down 5 since Aug 2024–Jul 2025.
23	API Group Life Safety USA LLC Top agencies VA (Department of Veterans Affairs)	$413,418	0.3%	Rank history: not on the FY2021–FY2024 lists and #19 in FY2025; new, not ranked in Aug 2024–Jul 2025.
24	Mcintosh Communications Inc. Top agencies DOI (Department of the Interior)	$337,272	0.2%	Rank history: not on the FY2021 list, #45 in FY2022, #87 in FY2023, #93 in FY2024 and #49 in FY2025; up 82 since Aug 2024–Jul 2025.
25	Winspear Construction Llc. Top agencies USAF (Department of the Air Force)	$309,000	0.2%	Rank history: not on the FY2021–FY2024 lists and #21 in FY2025; new, not ranked in Aug 2024–Jul 2025.
26	Action Technology Services LLC Top agencies VA (Department of Veterans Affairs)	$287,451	0.2%	Rank history: not on the FY2021–FY2022 lists, #8 in FY2023, #36 in FY2024 and #24 in FY2025; up 12 since Aug 2024–Jul 2025.
27	MC Dodd Construction LLC Top agencies DHS (Department of Homeland Security)	$279,739	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
28	Trane U.s. Inc. Top agencies DOJ (Department of Justice) USDA (Department of Agriculture)	$273,927	0.2%	Rank history: not on the FY2021 list, #69 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
29	ATP Gov, LLC Top agencies USAF (Department of the Air Force)	$252,387	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
30	Creative Sign Service Inc. Top agencies VA (Department of Veterans Affairs)	$249,883	0.2%	Rank history: not on the FY2021–FY2022 lists, #21 in FY2023, #27 in FY2024 and #31 in FY2025; down 12 since Aug 2024–Jul 2025.
31	Kwaan Sac JV, LLC Top agencies USAF (Department of the Air Force)	$249,000	0.2%	Rank history: not on the FY2021–FY2024 lists and #32 in FY2025; new, not ranked in Aug 2024–Jul 2025.
32	Phillips Corporation Top agencies NASA (National Aeronautics and Space Administration)	$247,465	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
33	NW Tel, LLC Top agencies DOI (Department of the Interior)	$239,920	0.2%	Rank history: not on the FY2021–FY2024 lists and #61 in FY2025; new, not ranked in Aug 2024–Jul 2025.
34	Total Solution LLC Top agencies Navy (Department of the Navy)	$224,586	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
35	Systems Source Inc. Top agencies Navy (Department of the Navy)	$218,685	0.1%	Rank history: not on the FY2021–FY2024 lists and #35 in FY2025; new, not ranked in Aug 2024–Jul 2025.
36	Digital Plaza LLC Top agencies DOT (Department of Transportation)	$205,381	0.1%	Rank history: not on the FY2021–FY2023 lists, #79 in FY2024 and #37 in FY2025; up 42 since Aug 2024–Jul 2025.
37	Evergreen Fire Alarms LLC Top agencies Army (Department of the Army)	$203,642	0.1%	Rank history: not on the FY2021–FY2022 lists, #42 in FY2023, #45 in FY2024 and #30 in FY2025; up 72 since Aug 2024–Jul 2025.
38	Edge Technology Distributors Inc. Top agencies Navy (Department of the Navy)	$200,146	0.1%	Rank history: not on the FY2021–FY2024 lists and #39 in FY2025; new, not ranked in Aug 2024–Jul 2025.
39	Burnn Boiler & Mechanical Inc. Top agencies DOI (Department of the Interior)	$184,925	0.1%	Rank history: not on the FY2021–FY2024 lists and #41 in FY2025; new, not ranked in Aug 2024–Jul 2025.
40	Allcom Global Services Inc. Through Strantech LLC Top agencies DISA (Defense Information Systems Agency)	$180,551	0.1%	Rank history: not on the FY2021–FY2023 lists, #32 in FY2024 and #42 in FY2025; down 6 since Aug 2024–Jul 2025.
41	Metal Dynamics Ltd Top agencies Navy (Department of the Navy)	$178,339	0.1%	Rank history: not on the FY2021–FY2022 lists, #100 in FY2023, #35 in FY2024 and #89 in FY2025; up 73 since Aug 2024–Jul 2025.
42	Paragon Micro Inc. Top agencies Army (Department of the Army)	$173,565	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
43	Ryukyu Denki K.K. Top agencies Navy (Department of the Navy)	$168,155	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
44	CLC Locksmiths, A Limited Liability Company Top agencies Navy (Department of the Navy)	$167,200	0.1%	Rank history: #40 in FY2021, not on the FY2022–FY2024 lists and #33 in FY2025; up 1 since Aug 2024–Jul 2025.
45	Karcher Group Incorporated Top agencies Navy (Department of the Navy)	$164,091	0.1%	Rank history: not on the FY2021–FY2024 lists and #23 in FY2025; up 17 since Aug 2024–Jul 2025.
46	Senior Consultants, Inc. Top agencies VA (Department of Veterans Affairs)	$163,186	0.1%	Rank history: #93 in FY2021, not on the FY2022–FY2024 lists and #69 in FY2025; up 49 since Aug 2024–Jul 2025.
47	Beltmann Group Incorporated Top agencies VA (Department of Veterans Affairs)	$161,600	0.1%	Rank history: not on the FY2021–FY2023 lists, #49 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
48	Vista Convention Services, Inc. Top agencies DISA (Defense Information Systems Agency)	$159,225	0.1%	Rank history: not on the FY2021–FY2023 lists, #48 in FY2024 and #47 in FY2025; up 13 since Aug 2024–Jul 2025.
49	JT West Construction, Inc. Top agencies VA (Department of Veterans Affairs)	$153,962	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
50	Yoscak Associates LLC Top agencies Navy (Department of the Navy)	$150,919	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
51	Kamikita Kensetsu Co.,Ltd. Top agencies USAF (Department of the Air Force)	$146,236	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
52	Government Marketing and Procurement, LLC Top agencies VA (Department of Veterans Affairs)	$144,387	0.1%	Rank history: not on the FY2021–FY2022 lists, #78 in FY2023, not on the FY2024 list and #56 in FY2025; up 14 since Aug 2024–Jul 2025.
53	Afognak Native Corporation Through Alutiiq Information Management, LLC Top agencies Navy (Department of the Navy)	$141,481	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
54	Pitney Bowes Inc. 2 awardees Top agencies USAF (Department of the Air Force)	$131,470	0.1%	Rank history: not on the FY2021–FY2024 lists and #50 in FY2025; new, not ranked in Aug 2024–Jul 2025.
55	GDL Solutions, Inc. Top agencies DOI (Department of the Interior)	$107,784	0.1%	Rank history: not on the FY2021–FY2024 lists and #58 in FY2025; new, not ranked in Aug 2024–Jul 2025.
56	BDR Solutions, LLC Top agencies VA (Department of Veterans Affairs)	$102,357	0.1%	Rank history: not on the FY2021–FY2024 lists and #81 in FY2025; new, not ranked in Aug 2024–Jul 2025.
57	Peraton Inc. Top agencies VA (Department of Veterans Affairs)	$99,020	0.1%	Rank history: not on the FY2021–FY2024 lists and #44 in FY2025; up 7 since Aug 2024–Jul 2025.
58	Timsco, Inc. Top agencies Treasury (Department of the Treasury)	$94,000	0.1%	Rank history: not on the FY2021–FY2025 lists; up 93 since Aug 2024–Jul 2025.
59	Global Van Co., Ltd. Top agencies Navy (Department of the Navy)	$78,436	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
60	Smartnet, Inc. Top agencies Navy (Department of the Navy)	$76,333	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
61	Chugach Technical Solutions LLC Top agencies Navy (Department of the Navy)	$76,234	0.1%	Rank history: not on the FY2021–FY2023 lists, #21 in FY2024 and #13 in FY2025; down 46 since Aug 2024–Jul 2025.
62	Sunlife Corporate Housing LLC Top agencies USAF (Department of the Air Force)	$74,850	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
63	Home Maintenance Group LLC Top agencies VA (Department of Veterans Affairs)	$74,396	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
64	Guidehouse Inc. Through Peraton Inc. Top agencies VA (Department of Veterans Affairs)	$72,708	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
65	US Tower Corp. Top agencies DOT (Department of Transportation)	$68,271	<0.1%	Rank history: not on the FY2021–FY2024 lists and #66 in FY2025; new, not ranked in Aug 2024–Jul 2025.
66	DCT Top agencies Army (Department of the Army)	$64,211	<0.1%	Rank history: not on the FY2021 list, #87 in FY2022, #83 in FY2023, not on the FY2024 list and #67 in FY2025; up 35 since Aug 2024–Jul 2025.
67	Kisys, LLC Top agencies Army (Department of the Army)	$62,150	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
68	Societe De Travaux DES Prestations Et DES Services Top agencies DOS (Department of State)	$60,021	<0.1%	Rank history: not on the FY2021–FY2024 lists and #71 in FY2025; new, not ranked in Aug 2024–Jul 2025.
69	Avenu Holdings LLC Through Avenu Government Systems LLC	$59,860	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
70	Techni-Con, Inc. Top agencies USAF (Department of the Air Force)	$57,455	<0.1%	Rank history: not on the FY2021–FY2023 lists, #4 in FY2024 and not on the FY2025 list; down 64 since Aug 2024–Jul 2025.
71	Parliament LLC Top agencies Army (Department of the Army)	$56,867	<0.1%	Rank history: not on the FY2021–FY2024 lists and #76 in FY2025; new, not ranked in Aug 2024–Jul 2025.
72	No Limits Audio / Visual, Incorporated Top agencies DOI (Department of the Interior)	$53,864	<0.1%	Rank history: not on the FY2021–FY2023 lists, #31 in FY2024 and #40 in FY2025; down 43 since Aug 2024–Jul 2025.
73	Legacy Scenic & Productions, LLC Top agencies Army (Department of the Army)	$49,710	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 71 since Aug 2024–Jul 2025.
74	Aml-American Made Logistics Top agencies VA (Department of Veterans Affairs)	$47,451	<0.1%	Rank history: not on the FY2021–FY2023 lists, #40 in FY2024 and #95 in FY2025; down 33 since Aug 2024–Jul 2025.
75	INA Led US, Inc. Top agencies DOI (Department of the Interior)	$45,740	<0.1%	Rank history: not on the FY2021–FY2024 lists and #82 in FY2025; new, not ranked in Aug 2024–Jul 2025.
76	Silent Securities, Inc. Top agencies DHS (Department of Homeland Security)	$45,045	<0.1%	Rank history: not on the FY2021 list, #26 in FY2022, not on the FY2023–FY2024 lists and #26 in FY2025; down 33 since Aug 2024–Jul 2025.
77	Blue Tiger Consulting Group, LLC Top agencies DOI (Department of the Interior)	$44,400	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
78	Oasis Plantscaping LLC Top agencies Treasury (Department of the Treasury)	$43,140	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
79	Caracal Enterprises, LLC Top agencies DOI (Department of the Interior)	$42,783	<0.1%	Rank history: not on the FY2021 list, #38 in FY2022, #34 in FY2023, #69 in FY2024 and #52 in FY2025; up 4 since Aug 2024–Jul 2025.
80	N-Ovation Technology Group LLC Top agencies VA (Department of Veterans Affairs)	$42,142	<0.1%	Rank history: not on the FY2021–FY2023 lists, #89 in FY2024 and not on the FY2025 list; up 59 since Aug 2024–Jul 2025.
81	Emerging Tech, LLC Top agencies VA (Department of Veterans Affairs)	$41,080	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
82	Four Points Technology, L.L.C. Top agencies VA (Department of Veterans Affairs)	$40,065	<0.1%	Rank history: not on the FY2021–FY2023 lists, #66 in FY2024 and #83 in FY2025; up 110 since Aug 2024–Jul 2025.
83	Intrastellar Solutions LLC Top agencies DOI (Department of the Interior)	$39,832	<0.1%	Rank history: not on the FY2021–FY2024 lists and #84 in FY2025; new, not ranked in Aug 2024–Jul 2025.
84	Vastglobe Logistics LLC Top agencies DOI (Department of the Interior)	$39,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #85 in FY2025; new, not ranked in Aug 2024–Jul 2025.
85	Harrell Contracting Inc. Top agencies Navy (Department of the Navy)	$38,500	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
86	Retirementhometv Corporation Top agencies VA (Department of Veterans Affairs)	$38,425	<0.1%	Rank history: #67 in FY2021, not on the FY2022 list, #82 in FY2023, #88 in FY2024 and #62 in FY2025; down 5 since Aug 2024–Jul 2025.
87	Unassailable Solutions LLC Top agencies DHS (Department of Homeland Security)	$38,351	<0.1%	Rank history: not on the FY2021–FY2024 lists and #87 in FY2025; up 16 since Aug 2024–Jul 2025.
88	Techno, Co., Ltd. Top agencies USAF (Department of the Air Force)	$36,809	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
89	EGP 660 El Paso LP Top agencies DOJ (Department of Justice)	$33,202	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
90	Peawer Enterprises LLC Top agencies DHS (Department of Homeland Security)	$32,194	<0.1%	Rank history: not on the FY2021–FY2024 lists and #94 in FY2025; new, not ranked in Aug 2024–Jul 2025.
91	Steelcase Inc. Top agencies DOJ (Department of Justice)	$31,178	<0.1%	Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; down 58 since Aug 2024–Jul 2025.
92	Pergravis Mission Critical Construction, LLC Top agencies DISA (Defense Information Systems Agency)	$30,720	<0.1%	Rank history: not on the FY2021–FY2024 lists and #15 in FY2025; down 72 since Aug 2024–Jul 2025.
93	Rexus USA LLC Top agencies USAF (Department of the Air Force)	$29,986	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
94	Modern Technology Solutions, Inc. Top agencies DOD (Department of Defense)	$29,174	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
95	All Type Mechanical Services Inc. Top agencies Army (Department of the Army)	$28,590	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
96	Colossal Contracting LLC Top agencies Commerce (Department of Commerce)	$27,572	<0.1%	Rank history: not on the FY2021 list, #3 in FY2022, not on the FY2023–FY2024 lists and #38 in FY2025; down 52 since Aug 2024–Jul 2025.
97	WB Brawley Co Top agencies USAF (Department of the Air Force)	$27,488	<0.1%	Rank history: not on the FY2021–FY2023 lists, #47 in FY2024 and #97 in FY2025; down 45 since Aug 2024–Jul 2025.
98	Respirometer Systems & Applications LLC Top agencies Army (Department of the Army)	$27,446	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
99	AGFA-GEVAERT Through Agfa Healthcare Corporation Top agencies VA (Department of Veterans Affairs)	$26,731	<0.1%	Rank history: not on the FY2021–FY2024 lists and #72 in FY2025; down 2 since Aug 2024–Jul 2025.
100	AEG Group Inc Top agencies USAF (Department of the Air Force)	$26,004	<0.1%	Rank history: not on the FY2021–FY2023 lists, #8 in FY2024 and not on the FY2025 list; down 88 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 $151 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