Top 97 Contractors in NAICS 7121: Museums, Historical Sites, and Similar Institutions, Aug 2025–Jul 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Design and Production Incorporated Top agencies DHS (Department of Homeland Security) Army (Department of the Army) Smithsonian (Smithsonian Institution)	$21,291,802	38.0%	Rank history: not on the FY2021 list, #2 in FY2022, #2 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since Aug 2024–Jul 2025.
2	Heritage Interiors LLC Top agencies DOJ (Department of Justice)	$8,501,138	15.2%	Rank history: not on the FY2021–FY2023 lists, #16 in FY2024 and #15 in FY2025; up 8 since Aug 2024–Jul 2025.
3	Four Tribes Civil Construction LLC Top agencies Army (Department of the Army)	$6,466,098	11.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
4	International Archaeology, LLC Top agencies Navy (Department of the Navy)	$4,322,946	7.7%	Rank history: #4 in FY2021, #1 in FY2022, #6 in FY2023, #3 in FY2024 and #3 in FY2025; up 1 since Aug 2024–Jul 2025.
5	National Infantry Museum Foundation, Inc. Top agencies Army (Department of the Army)	$3,270,372	5.8%	Rank history: #5 in FY2021, #5 in FY2022, #4 in FY2023, #2 in FY2024 and #2 in FY2025; down 3 since Aug 2024–Jul 2025.
6	HOF Construction Inc. Top agencies USAF (Department of the Air Force)	$1,910,000	3.4%	Rank history: not on the FY2021–FY2024 lists and #4 in FY2025; new, not ranked in Aug 2024–Jul 2025.
7	Alexton Incorporated Top agencies HHS (Department of Health and Human Services)	$552,135	1.0%	Rank history: not on the FY2021–FY2023 lists, #25 in FY2024 and #17 in FY2025; up 17 since Aug 2024–Jul 2025.
8	Explus, Inc. Top agencies Smithsonian (Smithsonian Institution) Navy (Department of the Navy)	$497,356	0.9%	Rank history: #2 in FY2021, #12 in FY2022, #26 in FY2023, #26 in FY2024 and #6 in FY2025; up 3 since Aug 2024–Jul 2025.
9	T.a. Consulting, Inc. Top agencies Navy (Department of the Navy)	$424,636	0.8%	Rank history: not on the FY2021–FY2022 lists, #17 in FY2023, #13 in FY2024 and #13 in FY2025; up 8 since Aug 2024–Jul 2025.
10	Davis Memorial Goodwill Industries Inc Top agencies National Gallery of Art	$371,269	0.7%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2023, #22 in FY2024 and #14 in FY2025; up 9 since Aug 2024–Jul 2025.
11	Maquette Fine Art Services LLC Top agencies Smithsonian (Smithsonian Institution)	$357,867	0.6%	Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; new, not ranked in Aug 2024–Jul 2025.
12	Pacific Consulting Services Inc. Top agencies Navy (Department of the Navy)	$336,530	0.6%	Rank history: #16 in FY2021, #9 in FY2022, #15 in FY2023, #9 in FY2024 and #23 in FY2025; up 3 since Aug 2024–Jul 2025.
13	University of Utah Top agencies DOI (Department of the Interior)	$306,965	0.5%	Rank history: not on the FY2021–FY2023 lists, #57 in FY2024 and #37 in FY2025; up 30 since Aug 2024–Jul 2025.
14	San Diego Archaeological Center Top agencies Navy (Department of the Navy)	$299,785	0.5%	Rank history: #22 in FY2021, #44 in FY2022, #52 in FY2023, #31 in FY2024 and #25 in FY2025; up 13 since Aug 2024–Jul 2025.
15	Sea Reach, Ltd Top agencies USDA (Department of Agriculture)	$277,820	0.5%	Rank history: not on the FY2021 list, #20 in FY2022, #10 in FY2023, #12 in FY2024 and #24 in FY2025; up 6 since Aug 2024–Jul 2025.
16	Quatrefoil Associates Inc. Top agencies Smithsonian (Smithsonian Institution) Treasury (Department of the Treasury)	$272,990	0.5%	Rank history: not on the FY2021 list, #37 in FY2022, #34 in FY2023, #67 in FY2024 and #41 in FY2025; up 23 since Aug 2024–Jul 2025.
17	Terrestris, LLC Top agencies Army (Department of the Army)	$258,370	0.5%	Rank history: not on the FY2021–FY2022 lists, #49 in FY2023, #41 in FY2024 and #33 in FY2025; new, not ranked in Aug 2024–Jul 2025.
18	Iron Mountain Information Management LLC 2 awardees Top agencies Smithsonian (Smithsonian Institution)	$247,802	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
19	Viakorp Corporation Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$224,042	0.4%	Rank history: not on the FY2021–FY2022 lists, #31 in FY2023, #18 in FY2024 and #19 in FY2025; up 3 since Aug 2024–Jul 2025.
20	Utah State University Top agencies DOI (Department of the Interior)	$221,956	0.4%	Rank history: not on the FY2021–FY2024 lists and #22 in FY2025; new, not ranked in Aug 2024–Jul 2025.
21	New South Associates, Inc. Top agencies VA (Department of Veterans Affairs)	$208,738	0.4%	Rank history: not on the FY2021–FY2022 lists, #8 in FY2023, #5 in FY2024 and #9 in FY2025; down 17 since Aug 2024–Jul 2025.
22	Zoma Communications LLC Top agencies Navy (Department of the Navy)	$190,745	0.3%	Rank history: not on the FY2021–FY2024 lists and #53 in FY2025; up 35 since Aug 2024–Jul 2025.
23	Wortham LLC Top agencies USAF (Department of the Air Force)	$181,000	0.3%	Rank history: not on the FY2021–FY2024 lists and #26 in FY2025; new, not ranked in Aug 2024–Jul 2025.
24	Constellation Network, Inc. Top agencies Army (Department of the Army)	$171,600	0.3%	Rank history: not on the FY2021–FY2023 lists, #33 in FY2024 and #27 in FY2025; down 4 since Aug 2024–Jul 2025.
25	Confederated Salish & Kootenai Tribes Inc Through Confederated Salish and Kootenai Tribes of the Flathead Reservation Top agencies Army (Department of the Army)	$152,059	0.3%	Rank history: not on the FY2021–FY2024 lists and #47 in FY2025; up 28 since Aug 2024–Jul 2025.
26	The Science Museum of Minnesota Top agencies Smithsonian (Smithsonian Institution)	$150,000	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
27	RB Textile Conservation, LLC Top agencies Smithsonian (Smithsonian Institution)	$147,000	0.3%	Rank history: #85 in FY2021, not on the FY2022–FY2024 lists and #39 in FY2025; up 5 since Aug 2024–Jul 2025.
28	New Roots Historic Restoration, LLC Top agencies Army (Department of the Army)	$126,480	0.2%	Rank history: not on the FY2021–FY2023 lists, #11 in FY2024 and #34 in FY2025; down 3 since Aug 2024–Jul 2025.
29	Washington State University Top agencies Army (Department of the Army)	$125,959	0.2%	Rank history: #39 in FY2021, #65 in FY2022, #39 in FY2023, #35 in FY2024 and #35 in FY2025; up 5 since Aug 2024–Jul 2025.
30	Kalispel Indian Community of the Kalispel Reservation Top agencies Army (Department of the Army)	$125,937	0.2%	Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; up 10 since Aug 2024–Jul 2025.
31	Lindys Painting, La Porte LLC Top agencies USAF (Department of the Air Force)	$125,000	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
32	LG2 Environmental Solutions, Inc. Top agencies USDA (Department of Agriculture)	$121,251	0.2%	Rank history: not on the FY2021 list, #17 in FY2022, not on the FY2023–FY2024 lists and #36 in FY2025; new, not ranked in Aug 2024–Jul 2025.
33	Coral & Oak LLC Top agencies Smithsonian (Smithsonian Institution)	$120,700	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
34	Oregon Museum of Science and Industry Top agencies Smithsonian (Smithsonian Institution)	$110,000	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
35	Confederated Tribes of Colville Reservation Top agencies Army (Department of the Army)	$109,877	0.2%	Rank history: not on the FY2021–FY2024 lists and #68 in FY2025; up 48 since Aug 2024–Jul 2025.
36	Dunrovin Design & Copy, L.l.c Top agencies USAF (Department of the Air Force)	$108,132	0.2%	Rank history: not on the FY2021 list, #58 in FY2022, #58 in FY2023, #45 in FY2024 and #40 in FY2025; up 1 since Aug 2024–Jul 2025.
37	Smart Monkeys, Inc. Top agencies Smithsonian (Smithsonian Institution)	$101,972	0.2%	Rank history: #18 in FY2021, #24 in FY2022, not on the FY2023 list, #74 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
38	Mackenzie Jones Top agencies Smithsonian (Smithsonian Institution)	$99,450	0.2%	Rank history: not on the FY2021–FY2024 lists and #77 in FY2025; new, not ranked in Aug 2024–Jul 2025.
39	Atelier Art Services Inc. Top agencies Smithsonian (Smithsonian Institution)	$94,645	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
40	Kulaiwi Archaeology, LLC Top agencies DOI (Department of the Interior)	$92,250	0.2%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2023, #59 in FY2024 and not on the FY2025 list; up 9 since Aug 2024–Jul 2025.
41	Steven Pickman Objects Conservation LLC Top agencies Smithsonian (Smithsonian Institution)	$90,300	0.2%	Rank history: not on the FY2021–FY2023 lists, #27 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
42	Joseph Z Johnson Top agencies Smithsonian (Smithsonian Institution)	$87,360	0.2%	Rank history: #63 in FY2021, not on the FY2022 list, #68 in FY2023, #54 in FY2024 and not on the FY2025 list; up 5 since Aug 2024–Jul 2025.
43	Veta Conservacio Restauracio SL Top agencies DOS (Department of State)	$87,159	0.2%	Rank history: not on the FY2021–FY2024 lists and #44 in FY2025; new, not ranked in Aug 2024–Jul 2025.
44	Blair Inc. Top agencies Smithsonian (Smithsonian Institution)	$81,158	0.1%	Rank history: not on the FY2021–FY2022 lists, #72 in FY2023, not on the FY2024 list and #10 in FY2025; down 30 since Aug 2024–Jul 2025.
45	Blast Off Inc. Top agencies Army (Department of the Army)	$73,980	0.1%	Rank history: not on the FY2021–FY2022 lists, #21 in FY2023, #14 in FY2024 and #11 in FY2025; down 37 since Aug 2024–Jul 2025.
46	Tamsin Mcdonagh Top agencies Smithsonian (Smithsonian Institution)	$72,736	0.1%	Rank history: #74 in FY2021, #97 in FY2022, #75 in FY2023, #68 in FY2024 and #49 in FY2025; new, not ranked in Aug 2024–Jul 2025.
47	Past Matters LLC Top agencies DOI (Department of the Interior)	$71,637	0.1%	Rank history: #52 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
48	Sommerville-Wilson Inc. Top agencies Smithsonian (Smithsonian Institution)	$66,349	0.1%	Rank history: #83 in FY2021, #66 in FY2022, not on the FY2023 list, #19 in FY2024 and #71 in FY2025; new, not ranked in Aug 2024–Jul 2025.
49	Boxart Inc. Top agencies Smithsonian (Smithsonian Institution)	$60,575	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
50	Preservation Arts, LLC Top agencies DOI (Department of the Interior)	$58,250	0.1%	Rank history: not on the FY2021–FY2024 lists and #59 in FY2025; up 70 since Aug 2024–Jul 2025.
51	Kristina Ampoloquio Pahang Top agencies Smithsonian (Smithsonian Institution)	$58,086	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
52	Drummey Contracting LLC Top agencies Smithsonian (Smithsonian Institution)	$57,393	0.1%	Rank history: not on the FY2021–FY2024 lists and #38 in FY2025; up 16 since Aug 2024–Jul 2025.
53	Conservation By Design, Inc. Top agencies USDA (Department of Agriculture)	$57,286	0.1%	Rank history: not on the FY2021 list, #46 in FY2022, #45 in FY2023, #42 in FY2024 and not on the FY2025 list; down 20 since Aug 2024–Jul 2025.
54	Confederated Tribes and Bands of the Yakama Nation Top agencies Army (Department of the Army)	$57,254	0.1%	Rank history: not on the FY2021–FY2024 lists and #61 in FY2025; new, not ranked in Aug 2024–Jul 2025.
55	New England Aquarium Corporation Top agencies Commerce (Department of Commerce)	$54,000	0.1%	Rank history: not on the FY2021–FY2024 lists and #86 in FY2025; new, not ranked in Aug 2024–Jul 2025.
56	Alejandra B. Garcia-Silva Top agencies Smithsonian (Smithsonian Institution)	$51,300	0.1%	Rank history: not on the FY2021–FY2024 lists and #63 in FY2025; new, not ranked in Aug 2024–Jul 2025.
57	Smith Art Conservation, LLC Top agencies Army (Department of the Army)	$48,895	0.1%	Rank history: #94 in FY2021, #78 in FY2022, #95 in FY2023, not on the FY2024 list and #65 in FY2025; up 18 since Aug 2024–Jul 2025.
58	The Ilwaco Heritage Foundation Top agencies Army (Department of the Army)	$48,073	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
59	Vantage Point Consulting Inc. Top agencies Smithsonian (Smithsonian Institution)	$45,200	0.1%	Rank history: not on the FY2021–FY2024 lists and #72 in FY2025; new, not ranked in Aug 2024–Jul 2025.
60	Kleinfelder Inc. Top agencies Navy (Department of the Navy)	$40,858	0.1%	Rank history: not on the FY2021–FY2024 lists and #7 in FY2025; down 51 since Aug 2024–Jul 2025.
61	Chickasaw Nation Through Chickasaw Management Services, LLC Top agencies HHS (Department of Health and Human Services)	$40,000	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
62	Historical Research Associates, Inc. Top agencies DOI (Department of the Interior)	$38,871	0.1%	Rank history: not on the FY2021–FY2025 lists; up 29 since Aug 2024–Jul 2025.
63	Ethan Johanson Top agencies Smithsonian (Smithsonian Institution)	$38,136	0.1%	Rank history: not on the FY2021–FY2023 lists, #58 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
64	Manutek Inc Top agencies DOI (Department of the Interior)	$34,997	0.1%	Rank history: not on the FY2021–FY2024 lists and #75 in FY2025; new, not ranked in Aug 2024–Jul 2025.
65	Kelli Barnes Top agencies Smithsonian (Smithsonian Institution)	$33,000	0.1%	Rank history: not on the FY2021–FY2024 lists and #78 in FY2025; new, not ranked in Aug 2024–Jul 2025.
66	Henry Niepoetter Top agencies Smithsonian (Smithsonian Institution)	$29,610	0.1%	Rank history: not on the FY2021–FY2024 lists and #48 in FY2025; up 11 since Aug 2024–Jul 2025.
67	Frontline National LLC Top agencies Army (Department of the Army)	$29,540	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
68	Bizsolutions 360 Inc. Top agencies Army (Department of the Army)	$27,474	<0.1%	Rank history: not on the FY2021–FY2024 lists and #82 in FY2025; new, not ranked in Aug 2024–Jul 2025.
69	MIA Caroline Owens Top agencies Smithsonian (Smithsonian Institution)	$26,100	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
70	Worcester Eisenbrandt Inc. Top agencies National Gallery of Art	$25,900	<0.1%	Rank history: not on the FY2021–FY2024 lists and #90 in FY2025; up 35 since Aug 2024–Jul 2025.
71	Gordon S Ponsford Top agencies USAF (Department of the Air Force)	$25,500	<0.1%	Rank history: not on the FY2021 list, #59 in FY2022, #18 in FY2023, #28 in FY2024 and #16 in FY2025; down 58 since Aug 2024–Jul 2025.
72	Sag Harbor Village Of Top agencies DOS (Department of State)	$25,000	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
73	Parliament LLC Top agencies DOI (Department of the Interior)	$25,000	<0.1%	Rank history: #62 in FY2021, #40 in FY2022, not on the FY2023–FY2024 lists and #89 in FY2025; new, not ranked in Aug 2024–Jul 2025.
74	Conservation of Sculpture and Objects Studio Inc. Top agencies GSA (General Services Administration)	$21,400	<0.1%	Rank history: not on the FY2021 list, #14 in FY2022, #35 in FY2023, #70 in FY2024 and #94 in FY2025; down 2 since Aug 2024–Jul 2025.
75	National September 11 Memorial and Museum At the World Trade Center Top agencies DOJ (Department of Justice)	$21,000	<0.1%	Rank history: not on the FY2021 list, #21 in FY2022, #40 in FY2023, #20 in FY2024 and #79 in FY2025; down 1 since Aug 2024–Jul 2025.
76	Alutiiq Museum and Archaeological Repository Top agencies DOI (Department of the Interior)	$20,851	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 39 since Aug 2024–Jul 2025.
77	Art Preservation Services Inc. Top agencies Smithsonian (Smithsonian Institution)	$19,915	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
78	University of Washington 2 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy)	$18,705	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 47 since Aug 2024–Jul 2025.
79	SBS Creatix LLC Top agencies Smithsonian (Smithsonian Institution)	$18,000	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 37 since Aug 2024–Jul 2025.
80	Aquaterra Environments LLC Top agencies HHS (Department of Health and Human Services)	$16,240	<0.1%	Rank history: #99 in FY2021, not on the FY2022–FY2024 lists and #81 in FY2025; up 37 since Aug 2024–Jul 2025.
81	Green Living Consulting LLC Top agencies Smithsonian (Smithsonian Institution)	$15,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #92 in FY2025; up 26 since Aug 2024–Jul 2025.
82	Olin Conservation, Inc. Top agencies Navy (Department of the Navy)	$14,685	<0.1%	Rank history: #60 in FY2021, #39 in FY2022, #42 in FY2023, #29 in FY2024 and #21 in FY2025; down 66 since Aug 2024–Jul 2025.
83	Freer Waters LLC Top agencies DOI (Department of the Interior)	$14,153	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
84	State Department of Natural Resource Top agencies USDA (Department of Agriculture)	$12,855	<0.1%	Rank history: not on the FY2021–FY2024 lists and #99 in FY2025; up 37 since Aug 2024–Jul 2025.
85	Confederated Tribes of the Umatilla Indian Reservation Top agencies Army (Department of the Army)	$12,346	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 43 since Aug 2024–Jul 2025.
86	Hailey Anne Christoph Top agencies DOI (Department of the Interior)	$11,539	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
87	VSS Logistics LLC Top agencies VA (Department of Veterans Affairs)	$11,156	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 37 since Aug 2024–Jul 2025.
88	Skulls Unlimited International, Inc. Top agencies EPA (Environmental Protection Agency)	$10,500	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 44 since Aug 2024–Jul 2025.
89	Robins Nest Aviaries Corp Top agencies VA (Department of Veterans Affairs)	$9,268	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 48 since Aug 2024–Jul 2025.
90	Studio A Inc. Top agencies Smithsonian (Smithsonian Institution)	$8,750	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
91	Healykohler Design, Inc. Top agencies Smithsonian (Smithsonian Institution)	$8,325	<0.1%	Rank history: not on the FY2021 list, #76 in FY2022, not on the FY2023 list, #92 in FY2024 and #45 in FY2025; down 47 since Aug 2024–Jul 2025.
92	Orpheo USA Corp Top agencies Army (Department of the Army)	$6,604	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 43 since Aug 2024–Jul 2025.
93	Curae Collections Care LLC Top agencies DOS (Department of State)	$6,200	<0.1%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2023, #46 in FY2024 and not on the FY2025 list; up 16 since Aug 2024–Jul 2025.
94	Museum of Great Plains Authority Top agencies DOI (Department of the Interior)	$4,979	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 44 since Aug 2024–Jul 2025.
95	USS North Carolina Battleship Commission Top agencies DHS (Department of Homeland Security)	$3,625	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
96	Supertweet LLC Top agencies USAF (Department of the Air Force)	$3,000	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
97	Formations Inc. Top agencies USAF (Department of the Air Force)	$500	<0.1%	Rank history: #9 in FY2021, not on the FY2022 list, #64 in FY2023, #17 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.

Rankings for the codes under NAICS 7121

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 $56 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