Top 100 Contractors in PSC Y1AA: Construction of Office Buildings, Aug 2025–Jul 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	BL Harbert International LLC 2 awardees, including Harden Architectural Security Products, LLC Top agencies DOS (Department of State)	$227,726,007	20.4%	Rank history: not on the FY2021–FY2023 lists, #5 in FY2024 and not on the FY2025 list; up 2 since Aug 2024–Jul 2025.
2	Epik International Inc. Top agencies DOS (Department of State)	$46,495,568	4.2%	Rank history: #58 in FY2021, not on the FY2022–FY2024 lists and #4 in FY2025; new, not ranked in Aug 2024–Jul 2025.
3	Dawn / Higley JV II, LLC Top agencies GSA (General Services Administration)	$44,127,088	4.0%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
4	Bristol Bay Native Corporation 2 awardees, including CCI Utility and Construction Services, LLC and CCI Prime Contractors, LLC Top agencies DOJ (Department of Justice) Army (Department of the Army)	$31,908,255	2.9%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
5	Clark Construction Group LLC Top agencies GSA (General Services Administration)	$22,649,209	2.0%	Rank history: #15 in FY2021, #32 in FY2022, not on the FY2023 list, #2 in FY2024 and #13 in FY2025; down 3 since Aug 2024–Jul 2025.
6	Clark Construction LLC Through Clark Construction Group LLC Top agencies GSA (General Services Administration)	$22,172,457	2.0%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
7	Asturian-Consigli JV, LLC Top agencies Navy (Department of the Navy)	$22,013,447	2.0%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
8	Olgoonik Innovations LLC Top agencies DOS (Department of State)	$20,637,429	1.9%	Rank history: not on the FY2021–FY2022 lists, #9 in FY2023, not on the FY2024 list and #8 in FY2025; new, not ranked in Aug 2024–Jul 2025.
9	Caddell Construction Co. Inc. Through Caddell Construction Co. (De), LLC Top agencies DOS (Department of State)	$19,498,733	1.8%	Rank history: not on the FY2021–FY2024 lists and #46 in FY2025; up 49 since Aug 2024–Jul 2025.
10	Brasfield & Gorrie LLC Top agencies GSA (General Services Administration) AOUSC (Administrative Office of the U.S. Courts) DOJ (Department of Justice)	$18,104,902	1.6%	Rank history: #8 in FY2021, #8 in FY2022, #1 in FY2023, #32 in FY2024 and #17 in FY2025; up 12 since Aug 2024–Jul 2025.
11	VRD Contracting Inc. Top agencies USAF (Department of the Air Force)	$15,494,746	1.4%	Rank history: not on the FY2021–FY2022 lists, #20 in FY2023, not on the FY2024 list and #11 in FY2025; up 168 since Aug 2024–Jul 2025.
12	Nve, Inc. Top agencies DOS (Department of State)	$13,400,492	1.2%	Rank history: #21 in FY2021, #12 in FY2022, #12 in FY2023, #78 in FY2024 and #10 in FY2025; up 4 since Aug 2024–Jul 2025.
13	Ids International, LLC Through Ids International Government Services LLC Top agencies DOS (Department of State)	$12,920,760	1.2%	Rank history: #51 in FY2021, not on the FY2022–FY2023 lists, #24 in FY2024 and #7 in FY2025; down 1 since Aug 2024–Jul 2025.
14	Industrial Maintenance Services Inc. Top agencies VA (Department of Veterans Affairs)	$11,999,679	1.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
15	Lacy Mechanical Inc. Top agencies DOI (Department of the Interior)	$11,274,755	1.0%	Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; new, not ranked in Aug 2024–Jul 2025.
16	Signature Renovations LLC Top agencies WHS (DOD Washington Headquarters Service) DOI (Department of the Interior)	$11,267,003	1.0%	Rank history: not on the FY2021 list, #70 in FY2022, #14 in FY2023, #54 in FY2024 and #21 in FY2025; up 46 since Aug 2024–Jul 2025.
17	Nippo Corporation Top agencies Navy (Department of the Navy) Army (Department of the Army)	$11,189,225	1.0%	Rank history: not on the FY2021–FY2025 lists; up 295 since Aug 2024–Jul 2025.
18	Cer, Incorporated Top agencies Navy (Department of the Navy)	$11,005,029	1.0%	Rank history: not on the FY2021 list, #15 in FY2022 and not on the FY2023–FY2025 lists; up 272 since Aug 2024–Jul 2025.
19	Bering Straits Native Corporation 2 awardees, including Stampede Ventures, Inc. Top agencies WHS (DOD Washington Headquarters Service)	$10,560,036	0.9%	Rank history: not on the FY2021 list, #17 in FY2022, #17 in FY2023, #65 in FY2024 and #19 in FY2025; up 74 since Aug 2024–Jul 2025.
20	Tunica-Biloxi Services, LLC Top agencies DOS (Department of State)	$10,042,570	0.9%	Rank history: not on the FY2021–FY2024 lists and #20 in FY2025; new, not ranked in Aug 2024–Jul 2025.
21	Inspection Experts Inc. Top agencies DOS (Department of State)	$8,785,012	0.8%	Rank history: not on the FY2021–FY2023 lists, #48 in FY2024 and #59 in FY2025; up 56 since Aug 2024–Jul 2025.
22	Medpro Systems LLC Top agencies DOS (Department of State)	$8,638,328	0.8%	Rank history: not on the FY2021–FY2024 lists and #24 in FY2025; new, not ranked in Aug 2024–Jul 2025.
23	Desbuild EG Management Services JV LLC Top agencies Navy (Department of the Navy)	$8,495,955	0.8%	Rank history: not on the FY2021 list, #56 in FY2022, not on the FY2023–FY2024 lists and #36 in FY2025; new, not ranked in Aug 2024–Jul 2025.
24	Hensel Phelps Construction Co 2 awardees Top agencies Navy (Department of the Navy) Army (Department of the Army)	$8,200,284	0.7%	Rank history: #2 in FY2021, #82 in FY2022, not on the FY2023–FY2024 lists and #2 in FY2025; down 20 since Aug 2024–Jul 2025.
25	AECOM 2 awardees, including AECOM Technical Services, Inc. Top agencies GSA (General Services Administration) DHS (Department of Homeland Security)	$8,134,519	0.7%	Rank history: not on the FY2021–FY2024 lists and #15 in FY2025; new, not ranked in Aug 2024–Jul 2025.
26	Continuity Global Solutions LLC Top agencies DOS (Department of State)	$8,129,514	0.7%	Rank history: not on the FY2021–FY2024 lists and #31 in FY2025; up 26 since Aug 2024–Jul 2025.
27	International Construction Services, LLC Top agencies DOS (Department of State)	$8,065,167	0.7%	Rank history: #25 in FY2021, not on the FY2022–FY2023 lists, #83 in FY2024 and #32 in FY2025; new, not ranked in Aug 2024–Jul 2025.
28	Kapule LLC Top agencies Navy (Department of the Navy)	$8,035,000	0.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
29	Vita Motus, Inc. Top agencies DOS (Department of State)	$8,000,000	0.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
30	Avcor Construction, LLC Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$7,923,285	0.7%	Rank history: not on the FY2021–FY2024 lists and #26 in FY2025; new, not ranked in Aug 2024–Jul 2025.
31	DOT Construction, Inc. Top agencies DOI (Department of the Interior)	$7,739,727	0.7%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2023, not on the FY2024 list and #29 in FY2025; up 151 since Aug 2024–Jul 2025.
32	Hammer LGC Inc. Top agencies GSA (General Services Administration) AOUSC (Administrative Office of the U.S. Courts)	$7,080,901	0.6%	Rank history: not on the FY2021–FY2023 lists, #63 in FY2024 and not on the FY2025 list; up 21 since Aug 2024–Jul 2025.
33	Kian International Inc. Top agencies DHS (Department of Homeland Security)	$6,930,415	0.6%	Rank history: not on the FY2021–FY2023 lists, #69 in FY2024 and #89 in FY2025; up 50 since Aug 2024–Jul 2025.
34	Gilbane Building Company Through Gilbane Federal Top agencies USAF (Department of the Air Force)	$6,368,417	0.6%	Rank history: not on the FY2021–FY2024 lists and #33 in FY2025; new, not ranked in Aug 2024–Jul 2025.
35	Global Engineering Services Inc. Top agencies DOI (Department of the Interior)	$6,365,291	0.6%	Rank history: #57 in FY2021, #83 in FY2022, #87 in FY2023, #59 in FY2024 and not on the FY2025 list; up 103 since Aug 2024–Jul 2025.
36	Conti Federal Services, LLC Top agencies Army (Department of the Army)	$6,323,862	0.6%	Rank history: not on the FY2021–FY2023 lists, #4 in FY2024 and not on the FY2025 list; down 29 since Aug 2024–Jul 2025.
37	HSU Development, Inc. Top agencies DOS (Department of State) WHS (DOD Washington Headquarters Service)	$5,981,860	0.5%	Rank history: not on the FY2021 list, #39 in FY2022, #40 in FY2023, #13 in FY2024 and #50 in FY2025; down 23 since Aug 2024–Jul 2025.
38	Jacobs Engineering Group Inc. 3 awardees, including Jacobs Government Services Company Top agencies DHS (Department of Homeland Security) DOS (Department of State)	$5,473,231	0.5%	Rank history: not on the FY2021–FY2024 lists and #97 in FY2025; up 62 since Aug 2024–Jul 2025.
39	Big-D Construction Corp Top agencies GSA (General Services Administration)	$5,266,035	0.5%	Rank history: not on the FY2021 list, #3 in FY2022, not on the FY2023 list, #18 in FY2024 and #22 in FY2025; down 8 since Aug 2024–Jul 2025.
40	Es Global Inc. Top agencies DOS (Department of State)	$5,209,249	0.5%	Rank history: not on the FY2021–FY2022 lists, #10 in FY2023, #10 in FY2024 and #38 in FY2025; down 16 since Aug 2024–Jul 2025.
41	Puyenpa Technologies LLC 2 awardees, including Puyenpa Construction, LLC Top agencies WHS (DOD Washington Headquarters Service) Navy (Department of the Navy)	$5,190,224	0.5%	Rank history: not on the FY2021–FY2024 lists and #40 in FY2025; new, not ranked in Aug 2024–Jul 2025.
42	DMT Electric LLC Top agencies Army (Department of the Army)	$5,122,576	0.5%	Rank history: not on the FY2021–FY2024 lists and #41 in FY2025; new, not ranked in Aug 2024–Jul 2025.
43	Hana-Nati, LLC Top agencies DOS (Department of State)	$5,012,352	0.5%	Rank history: not on the FY2021–FY2024 lists and #28 in FY2025; new, not ranked in Aug 2024–Jul 2025.
44	Quality Construction Co Top agencies USDA (Department of Agriculture)	$4,986,819	0.4%	Rank history: not on the FY2021–FY2024 lists and #43 in FY2025; new, not ranked in Aug 2024–Jul 2025.
45	Wright Bros LLC Top agencies DOI (Department of the Interior) AOUSC (Administrative Office of the U.S. Courts)	$4,977,871	0.4%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2023, #72 in FY2024 and #37 in FY2025; up 58 since Aug 2024–Jul 2025.
46	Martinez Services, Inc. Top agencies DOI (Department of the Interior)	$4,956,198	0.4%	Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; new, not ranked in Aug 2024–Jul 2025.
47	Midnight Sun-Centennial Sunnliaq JV, LLC Top agencies DOI (Department of the Interior)	$4,799,592	0.4%	Rank history: not on the FY2021 list, #33 in FY2022, not on the FY2023 list, #70 in FY2024 and #49 in FY2025; up 14 since Aug 2024–Jul 2025.
48	Gam3 Construction LLC Top agencies USAF (Department of the Air Force)	$4,573,156	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
49	Aleut Construction LLC Top agencies Navy (Department of the Navy)	$4,371,095	0.4%	Rank history: not on the FY2021–FY2023 lists, #25 in FY2024 and #51 in FY2025; down 5 since Aug 2024–Jul 2025.
50	American Combustion Industries of Delaware, Inc. Top agencies Navy (Department of the Navy)	$4,211,677	0.4%	Rank history: not on the FY2021–FY2024 lists and #27 in FY2025; down 2 since Aug 2024–Jul 2025.
51	Terra Site Constructors LLC Top agencies DOI (Department of the Interior)	$4,131,674	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
52	Enviro-Management & Research, Inc. Top agencies DOS (Department of State)	$4,057,904	0.4%	Rank history: not on the FY2021 list, #77 in FY2022, #36 in FY2023, not on the FY2024 list and #54 in FY2025; up 27 since Aug 2024–Jul 2025.
53	Reilly Construction Inc. Top agencies DOI (Department of the Interior)	$4,030,008	0.4%	Rank history: not on the FY2021–FY2023 lists, #47 in FY2024 and #70 in FY2025; down 4 since Aug 2024–Jul 2025.
54	Ark Construction Management LLC Top agencies DOI (Department of the Interior) Army (Department of the Army)	$3,945,214	0.4%	Rank history: not on the FY2021–FY2023 lists, #87 in FY2024 and #61 in FY2025; up 14 since Aug 2024–Jul 2025.
55	Estudios Edificaciones E Interventorias En Ingenieria Eeii S A S Top agencies DOS (Department of State)	$3,839,806	0.3%	Rank history: not on the FY2021–FY2022 lists, #98 in FY2023, not on the FY2024 list and #85 in FY2025; up 46 since Aug 2024–Jul 2025.
56	Tuvli LLC Top agencies DOS (Department of State)	$3,707,302	0.3%	Rank history: not on the FY2021–FY2022 lists, #99 in FY2023, not on the FY2024 list and #79 in FY2025; up 43 since Aug 2024–Jul 2025.
57	Marrero, Couvillon & Associates, L.L.C. Top agencies DOI (Department of the Interior)	$3,593,920	0.3%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2023, not on the FY2024 list and #47 in FY2025; up 82 since Aug 2024–Jul 2025.
58	Pono Aina Management LLC Top agencies Commerce (Department of Commerce)	$3,433,241	0.3%	Rank history: #54 in FY2021, #10 in FY2022, not on the FY2023–FY2024 lists and #58 in FY2025; up 152 since Aug 2024–Jul 2025.
59	Doliveira DJB JV LLC Top agencies Navy (Department of the Navy)	$3,393,437	0.3%	Rank history: not on the FY2021–FY2024 lists and #57 in FY2025; new, not ranked in Aug 2024–Jul 2025.
60	Ameresco Inc. Top agencies GSA (General Services Administration)	$3,328,596	0.3%	Rank history: not on the FY2021–FY2023 lists, #93 in FY2024 and #62 in FY2025; up 16 since Aug 2024–Jul 2025.
61	Scientific Research Corporation Top agencies DOS (Department of State)	$3,326,658	0.3%	Rank history: #69 in FY2021, #24 in FY2022, #37 in FY2023, #75 in FY2024 and not on the FY2025 list; up 131 since Aug 2024–Jul 2025.
62	Mccarthy Hitt - Next NGA West Joint Venture Top agencies Army (Department of the Army)	$3,241,150	0.3%	Rank history: #9 in FY2021, #7 in FY2022, #79 in FY2023, not on the FY2024 list and #14 in FY2025; down 41 since Aug 2024–Jul 2025.
63	Red Arrow JV, LLC Top agencies Army (Department of the Army)	$2,985,114	0.3%	Rank history: not on the FY2021–FY2024 lists and #65 in FY2025; new, not ranked in Aug 2024–Jul 2025.
64	Magna JV Top agencies DOI (Department of the Interior)	$2,960,927	0.3%	Rank history: not on the FY2021–FY2024 lists and #67 in FY2025; new, not ranked in Aug 2024–Jul 2025.
65	EG Management Services, Inc. Top agencies OPM (Office of Personnel Management)	$2,900,472	0.3%	Rank history: not on the FY2021–FY2025 lists; up 248 since Aug 2024–Jul 2025.
66	Platinum Painting LLC Top agencies GSA (General Services Administration) AOUSC (Administrative Office of the U.S. Courts)	$2,836,947	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
67	American International Contractors Inc. Through American International Contractors (Special Projects) Inc. Top agencies DOS (Department of State)	$2,832,787	0.3%	Rank history: not on the FY2021–FY2024 lists and #3 in FY2025; new, not ranked in Aug 2024–Jul 2025.
68	Lacusong Leilani Top agencies Army (Department of the Army)	$2,753,658	0.2%	Rank history: not on the FY2021–FY2024 lists and #74 in FY2025; new, not ranked in Aug 2024–Jul 2025.
69	Hamilton Pacific Chamberlain LLC Top agencies DOI (Department of the Interior)	$2,724,564	0.2%	Rank history: not on the FY2021 list, #23 in FY2022, not on the FY2023 list, #81 in FY2024 and not on the FY2025 list; up 19 since Aug 2024–Jul 2025.
70	Fiber Business Solutions Group Inc. Top agencies DOI (Department of the Interior)	$2,571,929	0.2%	Rank history: not on the FY2021 list, #93 in FY2022, not on the FY2023–FY2024 lists and #75 in FY2025; up 103 since Aug 2024–Jul 2025.
71	John Cecil Construction, LLC Top agencies DOI (Department of the Interior)	$2,513,265	0.2%	Rank history: not on the FY2021–FY2024 lists and #80 in FY2025; new, not ranked in Aug 2024–Jul 2025.
72	Nana Regional Corporation, Inc. Through Arctic Peak LLC Top agencies DOE (Department of Energy)	$2,497,034	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
73	G.m. Hill Engineering, Inc. Top agencies DOI (Department of the Interior)	$2,460,027	0.2%	Rank history: #83 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
74	KAU Inc Top agencies DOI (Department of the Interior)	$2,447,578	0.2%	Rank history: not on the FY2021–FY2024 lists and #78 in FY2025; new, not ranked in Aug 2024–Jul 2025.
75	Cherokee Nation Red Wing, L.L.C. Through Cherokee CRC LLC Top agencies WHS (DOD Washington Headquarters Service)	$2,410,819	0.2%	Rank history: not on the FY2021–FY2023 lists, #9 in FY2024 and #87 in FY2025; down 64 since Aug 2024–Jul 2025.
76	The Whiting-Turner Contracting Company Top agencies AOUSC (Administrative Office of the U.S. Courts) GSA (General Services Administration) DOJ (Department of Justice)	$2,389,248	0.2%	Rank history: #6 in FY2021, #44 in FY2022, #52 in FY2023, #85 in FY2024 and not on the FY2025 list; up 48 since Aug 2024–Jul 2025.
77	Ryan Companies US Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts)	$2,343,498	0.2%	Rank history: not on the FY2021–FY2024 lists and #63 in FY2025; up 38 since Aug 2024–Jul 2025.
78	Horizon Construction Group\International Construction Services JV, LLC Top agencies DOS (Department of State)	$2,299,382	0.2%	Rank history: not on the FY2021–FY2024 lists and #23 in FY2025; down 46 since Aug 2024–Jul 2025.
79	Belt Built CFM Joint Venture, LLC Top agencies Navy (Department of the Navy)	$2,206,869	0.2%	Rank history: #39 in FY2021, #45 in FY2022, not on the FY2023–FY2024 lists and #84 in FY2025; up 192 since Aug 2024–Jul 2025.
80	BSA Contractors LLC Top agencies GSA (General Services Administration)	$2,196,251	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
81	Desbuild Incorporated Top agencies DOS (Department of State) Navy (Department of the Navy)	$2,177,042	0.2%	Rank history: #35 in FY2021, #6 in FY2022, #26 in FY2023, #15 in FY2024 and #44 in FY2025; down 62 since Aug 2024–Jul 2025.
82	Huot Construction and Services, Inc. Top agencies DOI (Department of the Interior)	$2,166,804	0.2%	Rank history: not on the FY2021–FY2023 lists, #84 in FY2024 and not on the FY2025 list; down 15 since Aug 2024–Jul 2025.
83	APC DB JV LLC Top agencies WHS (DOD Washington Headquarters Service)	$2,082,410	0.2%	Rank history: not on the FY2021–FY2024 lists and #90 in FY2025; new, not ranked in Aug 2024–Jul 2025.
84	Potomac Electric Power Co Top agencies DOS (Department of State)	$2,003,460	0.2%	Rank history: not on the FY2021–FY2024 lists and #69 in FY2025; new, not ranked in Aug 2024–Jul 2025.
85	Ironwood Commercial Builders Inc. Top agencies DOI (Department of the Interior)	$1,931,314	0.2%	Rank history: not on the FY2021–FY2023 lists, #38 in FY2024 and #93 in FY2025; down 44 since Aug 2024–Jul 2025.
86	Sicra ILE DE France Top agencies DOS (Department of State)	$1,874,956	0.2%	Rank history: not on the FY2021–FY2023 lists, #67 in FY2024 and #35 in FY2025; down 36 since Aug 2024–Jul 2025.
87	Mckenzie Construction & Site Development LLC 2 awardees Top agencies DOI (Department of the Interior) Navy (Department of the Navy)	$1,847,761	0.2%	Rank history: not on the FY2021–FY2022 lists, #55 in FY2023, #27 in FY2024 and #83 in FY2025; up 70 since Aug 2024–Jul 2025.
88	Bering-Weston JV, LLC Top agencies Army (Department of the Army)	$1,833,999	0.2%	Rank history: not on the FY2021–FY2023 lists, #3 in FY2024 and #73 in FY2025; down 83 since Aug 2024–Jul 2025.
89	DLJ Management Services, LLC Top agencies Army (Department of the Army)	$1,763,910	0.2%	Rank history: not on the FY2021–FY2024 lists and #96 in FY2025; new, not ranked in Aug 2024–Jul 2025.
90	Etolin Strait Associates LLC Top agencies Navy (Department of the Navy)	$1,719,913	0.2%	Rank history: not on the FY2021–FY2025 lists; up 154 since Aug 2024–Jul 2025.
91	OAC Action Construction Corp. Top agencies DOI (Department of the Interior) USDA (Department of Agriculture) USAF (Department of the Air Force)	$1,683,825	0.2%	Rank history: not on the FY2021–FY2022 lists, #58 in FY2023, not on the FY2024 list and #66 in FY2025; down 16 since Aug 2024–Jul 2025.
92	Workpro LLC Top agencies GSA (General Services Administration)	$1,551,589	0.1%	Rank history: not on the FY2021–FY2025 lists; up 70 since Aug 2024–Jul 2025.
93	Riomar Group Ventures, Inc. Top agencies Commerce (Department of Commerce)	$1,541,007	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
94	Ahtna Global LLC Top agencies DOI (Department of the Interior)	$1,509,180	0.1%	Rank history: not on the FY2021–FY2023 lists, #40 in FY2024 and not on the FY2025 list; up 36 since Aug 2024–Jul 2025.
95	Benaka, Inc. Top agencies Army (Department of the Army)	$1,439,754	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
96	James F Thomson JR Top agencies DOI (Department of the Interior)	$1,431,756	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
97	Aaecon General Contracting LLC Top agencies DOI (Department of the Interior)	$1,410,141	0.1%	Rank history: not on the FY2021–FY2025 lists; up 80 since Aug 2024–Jul 2025.
98	Tuckman-Barbee Construction Co., Inc. Top agencies Navy (Department of the Navy)	$1,340,695	0.1%	Rank history: not on the FY2021 list, #81 in FY2022, #11 in FY2023 and not on the FY2024–FY2025 lists; up 57 since Aug 2024–Jul 2025.
99	Grunley Construction Co., Inc. Top agencies Army (Department of the Army)	$1,330,249	0.1%	Rank history: not on the FY2021 list, #4 in FY2022, not on the FY2023 list, #60 in FY2024 and not on the FY2025 list; up 91 since Aug 2024–Jul 2025.
100	Classic Site Solutions Inc. Top agencies DOI (Department of the Interior)	$1,329,419	0.1%	Rank history: not on the FY2021–FY2022 lists, #84 in FY2023 and not on the FY2024–FY2025 lists; up 121 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 $1.11 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