Top 38 Contractors in PSC Z1HB: Maintenance of Government-Owned Government-Operated (Gogo) R&D Facilities, Jul 2025–Jun 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Arctic Slope Regional Corporation Through Asrc Federal Facilities Logistics LLC Top agencies NASA (National Aeronautics and Space Administration)	$59,689,849	39.4%	Rank history: not on the FY2021–FY2023 lists, #2 in FY2024 and #1 in FY2025; unchanged since Jul 2024–Jun 2025.
2	General Dynamics Corporation Through General Dynamics Mission Systems, Inc. Top agencies DHS (Department of Homeland Security)	$20,788,648	13.7%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023, #1 in FY2024 and #2 in FY2025; unchanged since Jul 2024–Jun 2025.
3	Amentum Holdings, Inc. Through Amentum Services, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$16,471,610	10.9%	Rank history: not on the FY2021–FY2023 lists, #19 in FY2024 and #3 in FY2025; up 3 since Jul 2024–Jun 2025.
4	Puyenpa Technologies LLC Through Puyenpa Construction, LLC Top agencies Navy (Department of the Navy)	$6,833,670	4.5%	Rank history: not on the FY2021–FY2024 lists and #9 in FY2025; new, not ranked in Jul 2024–Jun 2025.
5	Justin J. Reeves, L.l.c Top agencies HHS (Department of Health and Human Services)	$6,484,218	4.3%	Rank history: not on the FY2021–FY2022 lists, #12 in FY2023, #14 in FY2024 and #15 in FY2025; up 7 since Jul 2024–Jun 2025.
6	Chenega Facilities Management LLC Top agencies DHS (Department of Homeland Security)	$5,696,476	3.8%	Rank history: not on the FY2021–FY2023 lists, #8 in FY2024 and #4 in FY2025; down 2 since Jul 2024–Jun 2025.
7	New Dominion Construction LLC Top agencies Navy (Department of the Navy)	$5,196,026	3.4%	Rank history: #52 in FY2021, #25 in FY2022, not on the FY2023 list, #18 in FY2024 and #22 in FY2025; up 30 since Jul 2024–Jun 2025.
8	D&G Support Services LLC Top agencies DHS (Department of Homeland Security)	$3,040,080	2.0%	Rank history: not on the FY2021–FY2024 lists and #6 in FY2025; new, not ranked in Jul 2024–Jun 2025.
9	Oneida-Stantec JV LLC Top agencies DHS (Department of Homeland Security)	$2,601,212	1.7%	Rank history: not on the FY2021–FY2024 lists and #7 in FY2025; new, not ranked in Jul 2024–Jun 2025.
10	Bowhead Marine Support Services, LLC Top agencies Navy (Department of the Navy)	$2,381,008	1.6%	Rank history: not on the FY2021–FY2024 lists and #5 in FY2025; down 3 since Jul 2024–Jun 2025.
11	Akhi, LLC Top agencies HHS (Department of Health and Human Services)	$2,205,785	1.5%	Rank history: not on the FY2021–FY2023 lists, #37 in FY2024 and #10 in FY2025; up 3 since Jul 2024–Jun 2025.
12	Bering Global Solutions, LLC Top agencies Navy (Department of the Navy)	$2,088,719	1.4%	Rank history: not on the FY2021–FY2023 lists, #9 in FY2024 and #8 in FY2025; down 7 since Jul 2024–Jun 2025.
13	Teamgov, Inc. Top agencies HHS (Department of Health and Human Services)	$1,475,784	1.0%	Rank history: not on the FY2021–FY2023 lists, #16 in FY2024 and #12 in FY2025; up 3 since Jul 2024–Jun 2025.
14	Teya Enterprises LLC Top agencies Navy (Department of the Navy)	$1,445,692	1.0%	Rank history: not on the FY2021–FY2022 lists, #23 in FY2023, #4 in FY2024 and #24 in FY2025; down 5 since Jul 2024–Jun 2025.
15	Aleknagik Technology, LLC Top agencies Army (Department of the Army)	$1,178,005	0.8%	Rank history: not on the FY2021–FY2023 lists, #12 in FY2024 and #13 in FY2025; down 2 since Jul 2024–Jun 2025.
16	Craneworks, Inc. Top agencies Army (Department of the Army)	$815,646	0.5%	Rank history: #16 in FY2021, #12 in FY2022, #16 in FY2023, #21 in FY2024 and #16 in FY2025; up 5 since Jul 2024–Jun 2025.
17	Siemens Aktiengesellschaft Through Siemens Government Technologies Inc. Top agencies DOI (Department of the Interior)	$802,474	0.5%	Rank history: #35 in FY2021, #39 in FY2022, not on the FY2023–FY2024 lists and #17 in FY2025; up 3 since Jul 2024–Jun 2025.
18	Quality Contracting, Inc. Top agencies Navy (Department of the Navy)	$662,210	0.4%	Rank history: not on the FY2021–FY2024 lists and #11 in FY2025; unchanged since Jul 2024–Jun 2025.
19	Qayaq Government Solutions LLC Top agencies Navy (Department of the Navy)	$480,840	0.3%	Rank history: not on the FY2021–FY2023 lists, #5 in FY2024 and #20 in FY2025; down 16 since Jul 2024–Jun 2025.
20	Cremer Global Services, Incorporated Top agencies Navy (Department of the Navy)	$426,590	0.3%	Rank history: #53 in FY2021, #29 in FY2022, #15 in FY2023, #11 in FY2024 and #23 in FY2025; down 5 since Jul 2024–Jun 2025.
21	Impyrian Power Systems LLC Top agencies HHS (Department of Health and Human Services)	$419,733	0.3%	Rank history: not on the FY2021–FY2022 lists, #6 in FY2023, #13 in FY2024 and #21 in FY2025; down 10 since Jul 2024–Jun 2025.
22	Integriward LLC Top agencies EPA (Environmental Protection Agency)	$281,166	0.2%	Rank history: #13 in FY2021, #14 in FY2022, #14 in FY2023, #17 in FY2024 and #18 in FY2025; down 3 since Jul 2024–Jun 2025.
23	Eleven Bravo Group, LLC Top agencies DOI (Department of the Interior)	$266,900	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
24	HSU EGI JV LLC Top agencies Navy (Department of the Navy)	$251,605	0.2%	Rank history: #50 in FY2021, #31 in FY2022, #20 in FY2023, #23 in FY2024 and #26 in FY2025; down 1 since Jul 2024–Jun 2025.
25	Meltech Corporation, Inc. Top agencies Navy (Department of the Navy)	$248,973	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
26	Western States Fire Protection Co Through Precision Mechanical Services, LLC Top agencies Navy (Department of the Navy)	$160,925	0.1%	Rank history: not on the FY2021–FY2023 lists, #33 in FY2024 and #25 in FY2025; up 3 since Jul 2024–Jun 2025.
27	Trinity USA Contracting, Inc. Top agencies Navy (Department of the Navy)	$159,934	0.1%	Rank history: #22 in FY2021, #13 in FY2022, #11 in FY2023, #20 in FY2024 and #14 in FY2025; down 10 since Jul 2024–Jun 2025.
28	Addon Services LLC Top agencies HHS (Department of Health and Human Services)	$131,573	0.1%	Rank history: not on the FY2021–FY2022 lists, #5 in FY2023, #10 in FY2024 and #34 in FY2025; down 20 since Jul 2024–Jun 2025.
29	Ark Construction Management LLC Top agencies Navy (Department of the Navy)	$77,939	0.1%	Rank history: #29 in FY2021, #35 in FY2022, #13 in FY2023, #24 in FY2024 and #28 in FY2025; down 5 since Jul 2024–Jun 2025.
30	CMC Building Inc. Top agencies HHS (Department of Health and Human Services)	$65,022	<0.1%	Rank history: #2 in FY2021, #2 in FY2022, #17 in FY2023, #26 in FY2024 and #29 in FY2025; up 5 since Jul 2024–Jun 2025.
31	Sandow Construction Inc. Top agencies Navy (Department of the Navy)	$55,686	<0.1%	Rank history: not on the FY2021–FY2023 lists, #25 in FY2024 and not on the FY2025 list; up 8 since Jul 2024–Jun 2025.
32	Albireo Energy LLC Top agencies DOS (Department of State)	$48,660	<0.1%	Rank history: #37 in FY2021, #42 in FY2022, #30 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
33	Control Concepts LLC Top agencies Army (Department of the Army)	$33,930	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
34	Alabama Controls, Inc. Top agencies DOS (Department of State)	$29,745	<0.1%	Rank history: not on the FY2021–FY2024 lists and #32 in FY2025; down 2 since Jul 2024–Jun 2025.
35	Blackhawk Contracting, LLC Top agencies DOI (Department of the Interior)	$17,374	<0.1%	Rank history: not on the FY2021–FY2024 lists and #27 in FY2025; down 9 since Jul 2024–Jun 2025.
36	KVG LLC Top agencies DOS (Department of State)	$14,496	<0.1%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2023, #43 in FY2024 and #36 in FY2025; up 2 since Jul 2024–Jun 2025.
37	BIO - RAD Laboratories Gesellschaft MIT Beschraenkter Haftung Through Bio-Rad Laboratories, Inc. Top agencies DOI (Department of the Interior)	$12,625	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
38	Southworth-Milton, Inc. Top agencies Army (Department of the Army)	$10,070	<0.1%	Rank history: not on the FY2021–FY2023 lists, #36 in FY2024 and #33 in FY2025; down 4 since Jul 2024–Jun 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. 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 Jul 2024–Jun 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.

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