Top 100 Contractors in PSC Y1QA: Construction of Restoration of Real Property (Public or Private), Aug 2025–Jul 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Davis Constructors & Engineers, Inc. Top agencies GSA (General Services Administration)	$469,907,917	43.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
2	The Whiting-Turner Contracting Company Top agencies DHS (Department of Homeland Security) National Gallery of Art	$116,760,860	10.7%	Rank history: not on the FY2021 list, #5 in FY2022, #88 in FY2023, #50 in FY2024 and #73 in FY2025; up 76 since Aug 2024–Jul 2025.
3	Justin J. Reeves, L.l.c Top agencies Army (Department of the Army)	$59,834,458	5.5%	Rank history: not on the FY2021–FY2024 lists and #2 in FY2025; up 225 since Aug 2024–Jul 2025.
4	General Constructors Inc. of the Quad Cities Top agencies Army (Department of the Army)	$44,235,194	4.1%	Rank history: not on the FY2021 list, #10 in FY2022, #4 in FY2023, #78 in FY2024 and #89 in FY2025; up 78 since Aug 2024–Jul 2025.
5	Odin Environmental Solutions, LLC Top agencies Army (Department of the Army)	$28,972,504	2.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
6	Healtheon, Inc. Top agencies USAF (Department of the Air Force)	$24,876,247	2.3%	Rank history: #11 in FY2021, #39 in FY2022, #61 in FY2023, #2 in FY2024 and #11 in FY2025; up 9 since Aug 2024–Jul 2025.
7	P & S Construction Inc. Top agencies Army (Department of the Army)	$24,690,384	2.3%	Rank history: #76 in FY2021, #6 in FY2022, not on the FY2023–FY2024 lists and #4 in FY2025; up 134 since Aug 2024–Jul 2025.
8	Kraemer North America LLC Top agencies Army (Department of the Army)	$12,822,905	1.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
9	Nipoa Pacific LLC Top agencies Army (Department of the Army)	$12,776,564	1.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
10	Per Aarsleff Gronland APS Top agencies Army (Department of the Army)	$12,389,318	1.1%	Rank history: not on the FY2021–FY2023 lists, #24 in FY2024 and #29 in FY2025; up 2 since Aug 2024–Jul 2025.
11	Ciri Development Corporation 2 awardees, including North Wind Construction Services LLC and North Wind General Contractors LLC Top agencies USAF (Department of the Air Force) DOI (Department of the Interior) Army (Department of the Army)	$12,366,806	1.1%	Rank history: not on the FY2021 list, #73 in FY2022, #11 in FY2023, not on the FY2024 list and #10 in FY2025; new, not ranked in Aug 2024–Jul 2025.
12	Etolin Strait Associates LLC Top agencies Navy (Department of the Navy)	$10,853,594	1.0%	Rank history: not on the FY2021–FY2025 lists; up 208 since Aug 2024–Jul 2025.
13	Agate Construction Company, Inc. Top agencies Army (Department of the Army)	$10,617,500	1.0%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
14	Pacific Design Builders, LLC Top agencies Army (Department of the Army)	$9,714,720	0.9%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
15	HGS LLC Top agencies Army (Department of the Army)	$9,503,303	0.9%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
16	Marine Solutions Inc. Top agencies Army (Department of the Army)	$9,340,000	0.9%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
17	Desbuild Incorporated Top agencies DOS (Department of State)	$8,550,650	0.8%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
18	BCI Construction Usa, Inc. Top agencies Army (Department of the Army)	$8,131,981	0.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
19	Weston Solutions Holdings Inc Through Weston Solutions Inc. Top agencies Army (Department of the Army)	$7,697,658	0.7%	Rank history: not on the FY2021–FY2024 lists and #21 in FY2025; new, not ranked in Aug 2024–Jul 2025.
20	EXP U.S. Services Inc. Through EXP Federal Inc. Top agencies USAF (Department of the Air Force)	$7,606,942	0.7%	Rank history: not on the FY2021–FY2022 lists, #7 in FY2023, #13 in FY2024 and #30 in FY2025; up 20 since Aug 2024–Jul 2025.
21	Kuuk Investments, LLC Through HME Construction Inc. Top agencies Army (Department of the Army)	$7,534,889	0.7%	Rank history: not on the FY2021–FY2024 lists and #25 in FY2025; new, not ranked in Aug 2024–Jul 2025.
22	Greenway Enterprises Inc. Top agencies Army (Department of the Army)	$6,014,026	0.6%	Rank history: not on the FY2021–FY2024 lists and #37 in FY2025; new, not ranked in Aug 2024–Jul 2025.
23	Gale Construction Company of Illinois Top agencies Army (Department of the Army)	$5,498,929	0.5%	Rank history: not on the FY2021 list, #44 in FY2022, #76 in FY2023, #53 in FY2024 and #53 in FY2025; up 44 since Aug 2024–Jul 2025.
24	Olgoonik Corporation 2 awardees, including Olgoonik Federal, LLC and Olgoonik Specialty Contractors LLC Top agencies Army (Department of the Army)	$4,715,033	0.4%	Rank history: not on the FY2021–FY2024 lists and #8 in FY2025; new, not ranked in Aug 2024–Jul 2025.
25	Environmental Chemical Corporation Through ECC Environmental LLC Top agencies Army (Department of the Army)	$4,480,072	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
26	Ameritech Contracting LLC Top agencies VA (Department of Veterans Affairs)	$4,275,365	0.4%	Rank history: not on the FY2021–FY2024 lists and #86 in FY2025; new, not ranked in Aug 2024–Jul 2025.
27	"A-Vet Roofing & Construction, L.l.c." Top agencies Army (Department of the Army)	$4,192,949	0.4%	Rank history: not on the FY2021 list, #33 in FY2022, #99 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
28	J & J Contractors, Inc. Top agencies Army (Department of the Army)	$4,038,522	0.4%	Rank history: not on the FY2021 list, #7 in FY2022, not on the FY2023 list, #54 in FY2024 and not on the FY2025 list; up 41 since Aug 2024–Jul 2025.
29	2A LLC Top agencies Army (Department of the Army)	$3,990,706	0.4%	Rank history: not on the FY2021–FY2024 lists and #16 in FY2025; up 10 since Aug 2024–Jul 2025.
30	Conti Federal Services, LLC Top agencies Army (Department of the Army)	$3,687,148	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
31	International Archaeology, LLC Top agencies Navy (Department of the Navy)	$3,078,612	0.3%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2023, #64 in FY2024 and #71 in FY2025; up 65 since Aug 2024–Jul 2025.
32	Kmm-Black Wave Llc. Top agencies USAF (Department of the Air Force) DFAS (Defense Finance and Accounting Service)	$3,042,271	0.3%	Rank history: not on the FY2021–FY2024 lists and #38 in FY2025; up 107 since Aug 2024–Jul 2025.
33	Nipoa Standard LLC Top agencies Army (Department of the Army)	$2,674,346	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
34	AGM Marine Contractors Inc. Top agencies Army (Department of the Army)	$2,607,235	0.2%	Rank history: not on the FY2021–FY2023 lists, #19 in FY2024 and #23 in FY2025; down 24 since Aug 2024–Jul 2025.
35	CFF Consulting Inc. Top agencies USAF (Department of the Air Force)	$2,556,000	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
36	Ioei-Eqm JV Top agencies Army (Department of the Army)	$2,495,180	0.2%	Rank history: not on the FY2021–FY2024 lists and #40 in FY2025; new, not ranked in Aug 2024–Jul 2025.
37	Stronghold Engineering Inc. Top agencies DOI (Department of the Interior)	$2,198,714	0.2%	Rank history: not on the FY2021–FY2024 lists and #1 in FY2025; down 36 since Aug 2024–Jul 2025.
38	Olgoonik General, LLC Top agencies Army (Department of the Army)	$2,163,511	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
39	Cape-Forgen JV Top agencies Army (Department of the Army)	$2,095,582	0.2%	Rank history: not on the FY2021–FY2024 lists and #65 in FY2025; new, not ranked in Aug 2024–Jul 2025.
40	WU & Associates Inc. Top agencies Army (Department of the Army)	$2,016,011	0.2%	Rank history: not on the FY2021–FY2024 lists and #54 in FY2025; new, not ranked in Aug 2024–Jul 2025.
41	Cape-Weston JV1 LLC Top agencies Army (Department of the Army)	$1,779,448	0.2%	Rank history: not on the FY2021–FY2024 lists and #45 in FY2025; new, not ranked in Aug 2024–Jul 2025.
42	Air Control, Inc. Top agencies Army (Department of the Army)	$1,516,922	0.1%	Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; down 19 since Aug 2024–Jul 2025.
43	Weaver Excavating Inc. Top agencies DOI (Department of the Interior)	$1,510,726	0.1%	Rank history: not on the FY2021–FY2024 lists and #51 in FY2025; new, not ranked in Aug 2024–Jul 2025.
44	Envirologics Inc. Top agencies Army (Department of the Army)	$1,473,111	0.1%	Rank history: not on the FY2021–FY2024 lists and #50 in FY2025; new, not ranked in Aug 2024–Jul 2025.
45	Classic Site Solutions Inc. Top agencies Army (Department of the Army) DOI (Department of the Interior)	$1,431,362	0.1%	Rank history: not on the FY2021–FY2023 lists, #25 in FY2024 and #49 in FY2025; down 17 since Aug 2024–Jul 2025.
46	The Mantle Group Inc. Top agencies Army (Department of the Army)	$1,428,532	0.1%	Rank history: not on the FY2021–FY2024 lists and #27 in FY2025; down 9 since Aug 2024–Jul 2025.
47	Pipkin Inc. Top agencies Army (Department of the Army)	$1,331,601	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
48	West Coast JV, LLC Top agencies USAF (Department of the Air Force)	$1,322,800	0.1%	Rank history: not on the FY2021–FY2024 lists and #56 in FY2025; new, not ranked in Aug 2024–Jul 2025.
49	Plurax LLC Top agencies Army (Department of the Army)	$1,300,000	0.1%	Rank history: not on the FY2021–FY2024 lists and #57 in FY2025; new, not ranked in Aug 2024–Jul 2025.
50	Jacobs Engineering Group Inc. 2 awardees, including Jacobs Project Management Co. Top agencies Army (Department of the Army)	$1,288,696	0.1%	Rank history: not on the FY2021–FY2023 lists, #9 in FY2024 and #39 in FY2025; down 39 since Aug 2024–Jul 2025.
51	Drace Construction Corp Top agencies USAF (Department of the Air Force)	$1,231,792	0.1%	Rank history: not on the FY2021–FY2024 lists and #58 in FY2025; new, not ranked in Aug 2024–Jul 2025.
52	Amentum Holdings, Inc. Through Amentum Technology, Inc. Top agencies USAF (Department of the Air Force)	$1,213,055	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
53	Heffler Contracting Group Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,208,240	0.1%	Rank history: not on the FY2021–FY2022 lists, #21 in FY2023, not on the FY2024 list and #64 in FY2025; up 139 since Aug 2024–Jul 2025.
54	H & L Contracting LLC Top agencies Army (Department of the Army)	$1,195,440	0.1%	Rank history: not on the FY2021 list, #16 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
55	Turner Construction Company Top agencies USAF (Department of the Air Force)	$1,153,676	0.1%	Rank history: not on the FY2021–FY2023 lists, #1 in FY2024 and #9 in FY2025; down 53 since Aug 2024–Jul 2025.
56	Orion Marine Contractors, Inc. Top agencies Army (Department of the Army)	$1,150,000	0.1%	Rank history: not on the FY2021–FY2024 lists and #60 in FY2025; new, not ranked in Aug 2024–Jul 2025.
57	Doyon Management Services, LLC Top agencies Navy (Department of the Navy)	$1,139,545	0.1%	Rank history: not on the FY2021–FY2025 lists; up 161 since Aug 2024–Jul 2025.
58	Atlantic Coast Tug & Marine LLC Top agencies Army (Department of the Army)	$1,131,761	0.1%	Rank history: not on the FY2021–FY2023 lists, #43 in FY2024 and #61 in FY2025; down 1 since Aug 2024–Jul 2025.
59	J.f. Brennan Company, Inc. Top agencies Army (Department of the Army)	$1,050,749	0.1%	Rank history: not on the FY2021 list, #4 in FY2022, #68 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
60	Mann Robinson & Son Inc. Top agencies USDA (Department of Agriculture)	$985,361	0.1%	Rank history: not on the FY2021–FY2024 lists and #67 in FY2025; new, not ranked in Aug 2024–Jul 2025.
61	Kruze Kontrol Logistics LLC Top agencies USDA (Department of Agriculture)	$942,108	0.1%	Rank history: not on the FY2021–FY2024 lists and #69 in FY2025; new, not ranked in Aug 2024–Jul 2025.
62	Tutor Perini Corporation Through Perini Management Services, Inc. Top agencies DOI (Department of the Interior)	$919,080	0.1%	Rank history: not on the FY2021–FY2023 lists, #39 in FY2024 and #91 in FY2025; up 10 since Aug 2024–Jul 2025.
63	Rod Transport Inc. Top agencies Army (Department of the Army)	$898,824	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
64	Awalix, LLC Top agencies Army (Department of the Army)	$867,716	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
65	Environmental Logistics, Inc. Top agencies DOT (Department of Transportation)	$790,701	0.1%	Rank history: not on the FY2021–FY2024 lists and #75 in FY2025; new, not ranked in Aug 2024–Jul 2025.
66	Circle, LLC Top agencies Army (Department of the Army)	$784,635	0.1%	Rank history: not on the FY2021–FY2022 lists, #20 in FY2023, #18 in FY2024 and #68 in FY2025; down 5 since Aug 2024–Jul 2025.
67	Genco General Contractors of Puerto Rico Corp. Top agencies DOI (Department of the Interior)	$755,498	0.1%	Rank history: not on the FY2021–FY2024 lists and #97 in FY2025; up 41 since Aug 2024–Jul 2025.
68	Public Works Contractor Inc. Top agencies Navy (Department of the Navy)	$729,094	0.1%	Rank history: not on the FY2021 list, #38 in FY2022, not on the FY2023–FY2024 lists and #82 in FY2025; up 56 since Aug 2024–Jul 2025.
69	Howard W. Pence, Inc. Top agencies Army (Department of the Army)	$683,146	0.1%	Rank history: #19 in FY2021, not on the FY2022–FY2023 lists, #31 in FY2024 and not on the FY2025 list; down 26 since Aug 2024–Jul 2025.
70	US Diversified Contracting Services Inc. Top agencies VA (Department of Veterans Affairs)	$678,430	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
71	Pacific TECH Construction Inc. Top agencies DOI (Department of the Interior)	$636,396	0.1%	Rank history: #3 in FY2021, not on the FY2022 list, #63 in FY2023 and not on the FY2024–FY2025 lists; up 113 since Aug 2024–Jul 2025.
72	Fiber Business Solutions Group Inc. Top agencies DOI (Department of the Interior)	$623,800	0.1%	Rank history: not on the FY2021–FY2023 lists, #3 in FY2024 and #62 in FY2025; up 14 since Aug 2024–Jul 2025.
73	IBS L.l.c Top agencies Army (Department of the Army)	$577,373	0.1%	Rank history: not on the FY2021–FY2024 lists and #98 in FY2025; new, not ranked in Aug 2024–Jul 2025.
74	Sh Mechanical Inc. Top agencies Navy (Department of the Navy)	$552,666	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
75	Hamer Environmental Limited Partnership Top agencies Navy (Department of the Navy)	$540,915	<0.1%	Rank history: not on the FY2021–FY2023 lists, #94 in FY2024 and not on the FY2025 list; up 37 since Aug 2024–Jul 2025.
76	Bayside-Errg JV Top agencies DOI (Department of the Interior)	$521,198	<0.1%	Rank history: not on the FY2021–FY2024 lists and #88 in FY2025; new, not ranked in Aug 2024–Jul 2025.
77	Diamond Housing, LLC Top agencies USDA (Department of Agriculture)	$476,594	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
78	Goins Construction LLC Top agencies Army (Department of the Army)	$470,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #87 in FY2025; new, not ranked in Aug 2024–Jul 2025.
79	Sundance Consultants, LLC Through Sundance EA Associates II Top agencies Navy (Department of the Navy)	$439,369	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
80	The Aleut Corporation Through Patrick Constructors, LLC Top agencies Army (Department of the Army)	$421,741	<0.1%	Rank history: not on the FY2021–FY2024 lists and #12 in FY2025; new, not ranked in Aug 2024–Jul 2025.
81	Piperhill Construction Limited Top agencies DOS (Department of State)	$413,655	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
82	Lucianos Excavation Inc. Top agencies Army (Department of the Army)	$389,902	<0.1%	Rank history: not on the FY2021–FY2022 lists, #8 in FY2023, #38 in FY2024 and not on the FY2025 list; down 23 since Aug 2024–Jul 2025.
83	Burns & Mcdonnell, Inc. Through Burns & Mcdonnell Engineering Company, Inc. Top agencies USAF (Department of the Air Force)	$378,420	<0.1%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
84	Quoddy Builders LLC Top agencies Army (Department of the Army)	$362,000	<0.1%	Rank history: not on the FY2021–FY2023 lists, #65 in FY2024 and not on the FY2025 list; down 8 since Aug 2024–Jul 2025.
85	Razor Consulting Solutions, Inc. 2 awardees, including PMR Services Iii, LLC Top agencies DOI (Department of the Interior) USAF (Department of the Air Force)	$361,127	<0.1%	Rank history: #92 in FY2021 and not on the FY2022–FY2025 lists; up 92 since Aug 2024–Jul 2025.
86	Rehbein Enterprises Inc. Top agencies DOI (Department of the Interior)	$337,649	<0.1%	Rank history: #34 in FY2021, not on the FY2022–FY2024 lists and #72 in FY2025; down 6 since Aug 2024–Jul 2025.
87	Forged Construction Inc. Top agencies USDA (Department of Agriculture)	$334,071	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
88	Real Model Solutions, Inc. Top agencies Army (Department of the Army)	$319,375	<0.1%	Rank history: not on the FY2021–FY2024 lists and #31 in FY2025; down 46 since Aug 2024–Jul 2025.
89	Reams Enterprises Inc. Top agencies Army (Department of the Army)	$310,439	<0.1%	Rank history: not on the FY2021–FY2022 lists, #27 in FY2023, #21 in FY2024 and not on the FY2025 list; down 57 since Aug 2024–Jul 2025.
90	Silver Mountain Weston SB JV LLC Top agencies Army (Department of the Army)	$310,116	<0.1%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2023, #87 in FY2024 and not on the FY2025 list; down 3 since Aug 2024–Jul 2025.
91	Highpoint Partners LLC Top agencies Army (Department of the Army)	$300,000	<0.1%	Rank history: not on the FY2021–FY2023 lists, #11 in FY2024 and #99 in FY2025; down 74 since Aug 2024–Jul 2025.
92	Nana Regional Corporation, Inc. Through Arctic Peak LLC Top agencies DHS (Department of Homeland Security)	$299,721	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
93	Interstate Rock Products, Inc. Top agencies DOI (Department of the Interior)	$296,897	<0.1%	Rank history: not on the FY2021–FY2023 lists, #4 in FY2024 and not on the FY2025 list; up 9 since Aug 2024–Jul 2025.
94	Sealaska Constructors LLC Top agencies DOI (Department of the Interior)	$293,251	<0.1%	Rank history: not on the FY2021–FY2024 lists and #90 in FY2025; up 37 since Aug 2024–Jul 2025.
95	Wondra Construction Inc. Top agencies USDA (Department of Agriculture)	$277,612	<0.1%	Rank history: not on the FY2021–FY2023 lists, #22 in FY2024 and #70 in FY2025; down 70 since Aug 2024–Jul 2025.
96	JP Solution LLC Top agencies Army (Department of the Army)	$267,245	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 13 since Aug 2024–Jul 2025.
97	BEC Construction, Inc. Top agencies DOI (Department of the Interior)	$250,000	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
98	BKM Construction LLC Top agencies VA (Department of Veterans Affairs)	$244,384	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 106 since Aug 2024–Jul 2025.
99	Advantix Engineering Corp Top agencies USDA (Department of Agriculture)	$240,496	<0.1%	Rank history: not on the FY2021–FY2023 lists, #37 in FY2024 and not on the FY2025 list; down 51 since Aug 2024–Jul 2025.
100	Porr Government Services Italy SRL Top agencies Army (Department of the Army)	$236,012	<0.1%	Rank history: not on the FY2021–FY2024 lists and #94 in FY2025; new, not ranked in 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 $1.09 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. 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