Top 100 Contractors in PSC Z1AZ: Maintenance of Other Administrative Facilities and Service Buildings, Jul 2025–Jun 2026

Name: Top 100 Contractors in PSC Z1AZ: Maintenance of Other Administrative Facilities and Service Buildings, Jul 2025–Jun 2026
Creator: GovTribe

Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe

The top 10 won 35% of PSC Z1AZ contract dollars from July 2025 through June 2026

Contract obligations: $507,161,495 Net of deobligations, by contracts coded PSC Z1AZ
Contractors: 378 Parent companies with an obligation
Largest contractor: Arctic Slope Regional Corporation $44.4 million, 8.2% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Arctic Slope Regional Corporation 2 awardees, including Netcentric Technology, LLC Top agencies USAF (Department of the Air Force)	$44,351,533	8.2%	Rank history: #2 in FY2021, #3 in FY2022, #2 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since Jul 2024–Jun 2025.
2	Skookum Educational Programs Top agencies Army (Department of the Army) DHS (Department of Homeland Security) Navy (Department of the Navy)	$27,213,549	5.0%	Rank history: #1 in FY2021, #2 in FY2022, #1 in FY2023, #3 in FY2024 and #3 in FY2025; up 2 since Jul 2024–Jun 2025.
3	Amentum Holdings, Inc. 4 awardees, including Amentum Technology, Inc., Amentum Design and Facility Management and Amentum Spaceport LLC Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy) USAF (Department of the Air Force)	$26,644,608	4.9%	Rank history: not on the FY2021–FY2024 lists and #2 in FY2025; up 3 since Jul 2024–Jun 2025.
4	Global Systemized Industry Top agencies USAF (Department of the Air Force)	$20,300,198	3.8%	Rank history: not on the FY2021–FY2023 lists, #30 in FY2024 and #4 in FY2025; up 10 since Jul 2024–Jun 2025.
5	Emcor Group Inc. Through Emcor Government Services, Inc. Top agencies GAO (Government Accountability Office)	$15,776,869	2.9%	Rank history: #3 in FY2021, #5 in FY2022, #4 in FY2023, #5 in FY2024 and #5 in FY2025; down 2 since Jul 2024–Jun 2025.
6	Chenega Base & Logistics Services LLC Top agencies Army (Department of the Army)	$15,108,751	2.8%	Rank history: not on the FY2021–FY2022 lists, #55 in FY2023, #27 in FY2024 and #16 in FY2025; up 14 since Jul 2024–Jun 2025.
7	Don Jones Construction Co., Inc. Top agencies Army (Department of the Army)	$11,575,972	2.1%	Rank history: not on the FY2021–FY2024 lists and #9 in FY2025; up 103 since Jul 2024–Jun 2025.
8	NCS / EML SB Joint Venture LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$11,521,860	2.1%	Rank history: #19 in FY2021, #10 in FY2022, #21 in FY2023, #29 in FY2024 and #7 in FY2025; up 2 since Jul 2024–Jun 2025.
9	Chugach Alaska Corporation Through Chugach Consolidated Solutions, LLC Top agencies Army (Department of the Army)	$9,768,926	1.8%	Rank history: not on the FY2021 list, #25 in FY2022, #18 in FY2023, #15 in FY2024 and #49 in FY2025; up 44 since Jul 2024–Jun 2025.
10	LK Construction Co., Ltd. Top agencies Army (Department of the Army)	$8,284,875	1.5%	Rank history: not on the FY2021–FY2023 lists, #13 in FY2024 and #30 in FY2025; up 11 since Jul 2024–Jun 2025.
11	Sori E&C Co.,Ltd Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$7,067,368	1.3%	Rank history: not on the FY2021–FY2023 lists, #8 in FY2024 and #8 in FY2025; down 2 since Jul 2024–Jun 2025.
12	Carlisle Construction LLC Top agencies Army (Department of the Army)	$7,016,031	1.3%	Rank history: not on the FY2021–FY2024 lists and #13 in FY2025; up 37 since Jul 2024–Jun 2025.
13	Dsc-Emi Maintenance Solutions, LLC Top agencies Army (Department of the Army)	$7,002,989	1.3%	Rank history: #36 in FY2021, #20 in FY2022, #13 in FY2023, #17 in FY2024 and #11 in FY2025; down 5 since Jul 2024–Jun 2025.
14	Merp-Emi Mission Support LLC Top agencies Army (Department of the Army)	$6,906,396	1.3%	Rank history: not on the FY2021–FY2023 lists, #51 in FY2024 and #17 in FY2025; up 38 since Jul 2024–Jun 2025.
15	Integriward LLC Top agencies DHS (Department of Homeland Security) EPA (Environmental Protection Agency) DOJ (Department of Justice)	$6,875,223	1.3%	Rank history: not on the FY2021–FY2022 lists, #32 in FY2023, #45 in FY2024 and #12 in FY2025; up 29 since Jul 2024–Jun 2025.
16	CMI Management, LLC Top agencies GSA (General Services Administration)	$6,637,143	1.2%	Rank history: not on the FY2021–FY2024 lists and #54 in FY2025; up 244 since Jul 2024–Jun 2025.
17	Native Energy & Technology Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$5,735,354	1.1%	Rank history: #9 in FY2021, #11 in FY2022, #6 in FY2023, #10 in FY2024 and #26 in FY2025; up 1 since Jul 2024–Jun 2025.
18	Chugach Intelligence Solutions, LLC Top agencies Army (Department of the Army)	$5,651,074	1.0%	Rank history: not on the FY2021–FY2023 lists, #47 in FY2024 and #25 in FY2025; up 4 since Jul 2024–Jun 2025.
19	Aktarius LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$5,601,081	1.0%	Rank history: not on the FY2021–FY2023 lists, #36 in FY2024 and #19 in FY2025; up 10 since Jul 2024–Jun 2025.
20	Cherokee Nation Armored Solutions, LLC Top agencies MDA (DOD Missile Defense Agency)	$5,095,485	0.9%	Rank history: not on the FY2021–FY2023 lists, #19 in FY2024 and #14 in FY2025; down 1 since Jul 2024–Jun 2025.
21	Johnson Controls Building Automation Systems, LLC Top agencies Army (Department of the Army)	$4,989,663	0.9%	Rank history: not on the FY2021–FY2024 lists and #27 in FY2025; new, not ranked in Jul 2024–Jun 2025.
22	Siemens Aktiengesellschaft Through Siemens Government Technologies Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$4,989,155	0.9%	Rank history: not on the FY2021–FY2024 lists and #29 in FY2025; new, not ranked in Jul 2024–Jun 2025.
23	Action Facilities Management Inc. Top agencies Army (Department of the Army)	$4,781,870	0.9%	Rank history: #43 in FY2021, not on the FY2022 list, #23 in FY2023, #28 in FY2024 and #28 in FY2025; up 3 since Jul 2024–Jun 2025.
24	Energy Systems Group, LLC Top agencies Army (Department of the Army)	$4,690,763	0.9%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
25	Zenith Roofing and Waterproofing, LLC Top agencies Army (Department of the Army)	$4,667,573	0.9%	Rank history: not on the FY2021–FY2024 lists and #63 in FY2025; new, not ranked in Jul 2024–Jun 2025.
26	Seong Bo Const.ind.co.,Ltd. Top agencies Army (Department of the Army)	$4,529,568	0.8%	Rank history: not on the FY2021–FY2023 lists, #23 in FY2024 and #15 in FY2025; up 6 since Jul 2024–Jun 2025.
27	Kira Government Services LLC Top agencies Army (Department of the Army)	$4,521,559	0.8%	Rank history: not on the FY2021–FY2023 lists, #54 in FY2024 and #37 in FY2025; up 7 since Jul 2024–Jun 2025.
28	Summit Point Raceway Associates Inc. Top agencies DHS (Department of Homeland Security)	$4,456,843	0.8%	Rank history: not on the FY2021–FY2023 lists, #44 in FY2024 and #31 in FY2025; up 12 since Jul 2024–Jun 2025.
29	Capital Brand Group LLC Top agencies GSA (General Services Administration)	$4,271,086	0.8%	Rank history: not on the FY2021 list, #90 in FY2022, #96 in FY2023 and not on the FY2024–FY2025 lists; up 190 since Jul 2024–Jun 2025.
30	Msab LLC Through Msab / HCR JV, LLC Top agencies Army (Department of the Army)	$4,250,083	0.8%	Rank history: not on the FY2021–FY2024 lists and #100 in FY2025; up 133 since Jul 2024–Jun 2025.
31	Meccs Mitomo JV Top agencies Navy (Department of the Navy)	$4,163,121	0.8%	Rank history: #23 in FY2021, #28 in FY2022, #26 in FY2023, #46 in FY2024 and #33 in FY2025; up 10 since Jul 2024–Jun 2025.
32	Riza Construction Inc. Top agencies Army (Department of the Army)	$3,951,352	0.7%	Rank history: not on the FY2021–FY2024 lists and #36 in FY2025; new, not ranked in Jul 2024–Jun 2025.
33	Ben Fitzgerald Real Estate Services, L.L.C. Top agencies DHS (Department of Homeland Security)	$3,950,189	0.7%	Rank history: #26 in FY2021, #18 in FY2022, #20 in FY2023, #31 in FY2024 and #53 in FY2025; down 6 since Jul 2024–Jun 2025.
34	Koman Sustainable Solutions, LLC Top agencies DISA (Defense Information Systems Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$3,862,578	0.7%	Rank history: not on the FY2021–FY2023 lists, #12 in FY2024 and #24 in FY2025; down 22 since Jul 2024–Jun 2025.
35	Yuil Eng. & Const. Co.,Ltd Top agencies Army (Department of the Army)	$3,854,304	0.7%	Rank history: not on the FY2021–FY2023 lists, #70 in FY2024 and #56 in FY2025; up 16 since Jul 2024–Jun 2025.
36	Sunglim Engineering & Construction Co., Ltd Top agencies Army (Department of the Army)	$3,846,264	0.7%	Rank history: not on the FY2021–FY2023 lists, #16 in FY2024 and #58 in FY2025; down 21 since Jul 2024–Jun 2025.
37	Cherokee Nation Through Cherokee Nation Armored Solutions, LLC Top agencies MDA (DOD Missile Defense Agency)	$3,826,036	0.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
38	Per-Geesh Teksol JV, LLC Top agencies DHS (Department of Homeland Security)	$3,792,744	0.7%	Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; new, not ranked in Jul 2024–Jun 2025.
39	KTH Services JV, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$3,782,303	0.7%	Rank history: not on the FY2021–FY2023 lists, #65 in FY2024 and #52 in FY2025; up 15 since Jul 2024–Jun 2025.
40	Gale Construction Company of Illinois Top agencies DHS (Department of Homeland Security)	$3,752,720	0.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
41	Seneca Federal Solutions, LLC Top agencies Army (Department of the Army)	$3,710,064	0.7%	Rank history: not on the FY2021–FY2024 lists and #39 in FY2025; new, not ranked in Jul 2024–Jun 2025.
42	F.k. Horn GMBH & Co. Kg-Bauunternehmung Top agencies USAF (Department of the Air Force)	$3,674,292	0.7%	Rank history: not on the FY2021–FY2024 lists and #40 in FY2025; new, not ranked in Jul 2024–Jun 2025.
43	Jacobs Government Services Company Through Jacobs Engineering Group Inc. Top agencies GAO (Government Accountability Office)	$3,643,098	0.7%	Rank history: not on the FY2021–FY2023 lists, #6 in FY2024 and #20 in FY2025; down 26 since Jul 2024–Jun 2025.
44	American Engineering Corporation Top agencies Navy (Department of the Navy)	$3,625,994	0.7%	Rank history: #80 in FY2021, #42 in FY2022, #27 in FY2023, #32 in FY2024 and not on the FY2025 list; up 1 since Jul 2024–Jun 2025.
45	South Dade Air Conditioning & Refrigeration Inc. Top agencies GSA (General Services Administration)	$3,426,593	0.6%	Rank history: #81 in FY2021, #79 in FY2022, #94 in FY2023, #71 in FY2024 and not on the FY2025 list; up 26 since Jul 2024–Jun 2025.
46	Government Contracting Resources, Inc. Top agencies Navy (Department of the Navy)	$2,966,137	0.6%	Rank history: not on the FY2021 list, #95 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
47	SAM A Construction Co., Ltd Top agencies Army (Department of the Army)	$2,854,812	0.5%	Rank history: not on the FY2021–FY2023 lists, #66 in FY2024 and #32 in FY2025; down 11 since Jul 2024–Jun 2025.
48	Kwest Enterprises LLC Top agencies USAF (Department of the Air Force)	$2,838,083	0.5%	Rank history: not on the FY2021–FY2024 lists and #47 in FY2025; new, not ranked in Jul 2024–Jun 2025.
49	Pegasus Support Services LLC Top agencies GSA (General Services Administration) Treasury (Department of the Treasury)	$2,819,851	0.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
50	Trend Construction Inc. Top agencies Army (Department of the Army)	$2,793,145	0.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
51	J & J Maintenance Inc. Top agencies DHS (Department of Homeland Security)	$2,688,767	0.5%	Rank history: not on the FY2021–FY2023 lists, #52 in FY2024 and #22 in FY2025; down 8 since Jul 2024–Jun 2025.
52	Dawson Mcg, Inc. Top agencies Army (Department of the Army) EPA (Environmental Protection Agency)	$2,678,974	0.5%	Rank history: not on the FY2021–FY2024 lists and #55 in FY2025; new, not ranked in Jul 2024–Jun 2025.
53	MIA General Contracting LLC Top agencies Navy (Department of the Navy)	$2,658,889	0.5%	Rank history: not on the FY2021–FY2024 lists and #50 in FY2025; new, not ranked in Jul 2024–Jun 2025.
54	Yeajin E&C Co.,Ltd. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$2,609,320	0.5%	Rank history: not on the FY2021–FY2023 lists, #2 in FY2024 and #23 in FY2025; down 52 since Jul 2024–Jun 2025.
55	K & K Industries Inc Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$2,577,254	0.5%	Rank history: not on the FY2021–FY2022 lists, #60 in FY2023, #85 in FY2024 and not on the FY2025 list; up 23 since Jul 2024–Jun 2025.
56	DOT Construction, Inc. Top agencies USDA (Department of Agriculture) Army (Department of the Army)	$2,569,599	0.5%	Rank history: not on the FY2021–FY2024 lists and #81 in FY2025; up 99 since Jul 2024–Jun 2025.
57	Krima Construction Corp. Top agencies Army (Department of the Army)	$2,397,563	0.4%	Rank history: #17 in FY2021, not on the FY2022–FY2023 lists, #89 in FY2024 and #61 in FY2025; up 27 since Jul 2024–Jun 2025.
58	Henry General Contractors Inc Top agencies Navy (Department of the Navy)	$2,395,957	0.4%	Rank history: not on the FY2021–FY2023 lists, #98 in FY2024 and not on the FY2025 list; up 41 since Jul 2024–Jun 2025.
59	Protec Facility Solutions GMBH Top agencies DECA (Defense Commissary Agency)	$2,386,787	0.4%	Rank history: not on the FY2021–FY2024 lists and #68 in FY2025; up 75 since Jul 2024–Jun 2025.
60	Unico Government Solutions, LLC Top agencies Army (Department of the Army)	$2,270,110	0.4%	Rank history: not on the FY2021 list, #54 in FY2022, #58 in FY2023, #76 in FY2024 and #72 in FY2025; up 13 since Jul 2024–Jun 2025.
61	Pinewood Inc. Top agencies Army (Department of the Army)	$2,246,999	0.4%	Rank history: not on the FY2021–FY2023 lists, #95 in FY2024 and #21 in FY2025; down 19 since Jul 2024–Jun 2025.
62	HGS Engineering Inc. Top agencies VA (Department of Veterans Affairs)	$2,217,149	0.4%	Rank history: #40 in FY2021, #63 in FY2022, #35 in FY2023, #82 in FY2024 and #67 in FY2025; down 5 since Jul 2024–Jun 2025.
63	Reasor Building Group LLC Top agencies Army (Department of the Army)	$2,173,034	0.4%	Rank history: not on the FY2021 list, #6 in FY2022, not on the FY2023 list, #7 in FY2024 and #34 in FY2025; down 52 since Jul 2024–Jun 2025.
64	Siemens Corporation Through Siemens Government Technologies Inc. Top agencies Army (Department of the Army)	$2,149,864	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
65	Price Contracting Inc. Top agencies USDA (Department of Agriculture)	$2,086,956	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
66	Versar Security Systems, LLC Top agencies GAO (Government Accountability Office)	$1,900,846	0.4%	Rank history: not on the FY2021–FY2024 lists and #69 in FY2025; new, not ranked in Jul 2024–Jun 2025.
67	Alutiiq Operations Services, LLC Top agencies Treasury (Department of the Treasury)	$1,868,913	0.3%	Rank history: not on the FY2021–FY2024 lists and #46 in FY2025; down 11 since Jul 2024–Jun 2025.
68	James G Davis Construction Corp Top agencies GAO (Government Accountability Office)	$1,859,053	0.3%	Rank history: not on the FY2021–FY2022 lists, #54 in FY2023, not on the FY2024 list and #80 in FY2025; up 109 since Jul 2024–Jun 2025.
69	The C.d. Whitfield Co., LLC Top agencies Army (Department of the Army)	$1,854,099	0.3%	Rank history: #51 in FY2021, not on the FY2022–FY2023 lists, #68 in FY2024 and #70 in FY2025; up 248 since Jul 2024–Jun 2025.
70	Pure Enviro-Management, LLC Top agencies Army (Department of the Army)	$1,823,100	0.3%	Rank history: not on the FY2021–FY2022 lists, #62 in FY2023, #80 in FY2024 and #75 in FY2025; up 4 since Jul 2024–Jun 2025.
71	Unami LLC Top agencies Army (Department of the Army)	$1,746,692	0.3%	Rank history: not on the FY2021–FY2024 lists and #79 in FY2025; new, not ranked in Jul 2024–Jun 2025.
72	Pacarctic, LLC Top agencies DOS (Department of State)	$1,739,598	0.3%	Rank history: not on the FY2021–FY2024 lists and #89 in FY2025; up 21 since Jul 2024–Jun 2025.
73	Blue Construction Services LLC Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) DOJ (Department of Justice)	$1,731,141	0.3%	Rank history: not on the FY2021 list, #83 in FY2022, #44 in FY2023, #87 in FY2024 and #91 in FY2025; up 22 since Jul 2024–Jun 2025.
74	Etolin Strait Associates LLC Top agencies Navy (Department of the Navy)	$1,716,330	0.3%	Rank history: not on the FY2021–FY2024 lists and #77 in FY2025; up 203 since Jul 2024–Jun 2025.
75	Geumjang Construction Co.,Ltd Top agencies Army (Department of the Army)	$1,715,946	0.3%	Rank history: not on the FY2021–FY2022 lists, #72 in FY2023, #42 in FY2024 and not on the FY2025 list; down 27 since Jul 2024–Jun 2025.
76	Webb Construction Group Inc Top agencies Army (Department of the Army)	$1,687,153	0.3%	Rank history: not on the FY2021–FY2024 lists and #83 in FY2025; new, not ranked in Jul 2024–Jun 2025.
77	Atelier 21 International Top agencies DOI (Department of the Interior)	$1,684,270	0.3%	Rank history: not on the FY2021–FY2024 lists and #84 in FY2025; new, not ranked in Jul 2024–Jun 2025.
78	Wilson 5 Service Company, Inc. Top agencies EPA (Environmental Protection Agency)	$1,632,847	0.3%	Rank history: #99 in FY2021, #47 in FY2022, #30 in FY2023, #40 in FY2024 and #48 in FY2025; down 43 since Jul 2024–Jun 2025.
79	Dongjin Construction Co., Ltd. Top agencies Army (Department of the Army)	$1,615,247	0.3%	Rank history: not on the FY2021–FY2023 lists, #24 in FY2024 and not on the FY2025 list; up 7 since Jul 2024–Jun 2025.
80	Elrim Construction Co., Ltd. Top agencies Army (Department of the Army)	$1,611,921	0.3%	Rank history: not on the FY2021–FY2023 lists, #50 in FY2024 and not on the FY2025 list; up 9 since Jul 2024–Jun 2025.
81	Palgag Building Technologies Ltd Top agencies DOS (Department of State)	$1,594,583	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
82	R.e. Miller and Sons Top agencies USDA (Department of Agriculture)	$1,564,984	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
83	DB Netz AG Regionalnetz Oberpfalz Top agencies Army (Department of the Army)	$1,498,013	0.3%	Rank history: not on the FY2021 list, #8 in FY2022, #71 in FY2023, #20 in FY2024 and #44 in FY2025; down 59 since Jul 2024–Jun 2025.
84	Korte -River City JV Top agencies Army (Department of the Army)	$1,464,685	0.3%	Rank history: not on the FY2021 list, #1 in FY2022, #11 in FY2023, #14 in FY2024 and #6 in FY2025; down 77 since Jul 2024–Jun 2025.
85	SPR Construction Corporation Top agencies Army (Department of the Army)	$1,446,007	0.3%	Rank history: not on the FY2021–FY2024 lists and #92 in FY2025; new, not ranked in Jul 2024–Jun 2025.
86	Aurora Alaska LLC Top agencies Army (Department of the Army)	$1,431,252	0.3%	Rank history: not on the FY2021–FY2024 lists and #93 in FY2025; new, not ranked in Jul 2024–Jun 2025.
87	Belt Built CFM Government Services JV LLC Top agencies USAF (Department of the Air Force)	$1,414,594	0.3%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2023, #58 in FY2024 and #94 in FY2025; up 60 since Jul 2024–Jun 2025.
88	The Siegel Group, LLC Top agencies Navy (Department of the Navy)	$1,387,506	0.3%	Rank history: #84 in FY2021, #87 in FY2022, #86 in FY2023 and not on the FY2024–FY2025 lists; up 16 since Jul 2024–Jun 2025.
89	Ahntech Inc Top agencies Navy (Department of the Navy)	$1,356,461	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
90	Global Precision Systems, LLC Top agencies DHS (Department of Homeland Security)	$1,339,415	0.2%	Rank history: #95 in FY2021, #69 in FY2022, #46 in FY2023, #92 in FY2024 and #78 in FY2025; down 13 since Jul 2024–Jun 2025.
91	Sustainable Building Solutions, LLC Top agencies Navy (Department of the Navy)	$1,299,638	0.2%	Rank history: not on the FY2021–FY2024 lists and #87 in FY2025; up 91 since Jul 2024–Jun 2025.
92	Cayuse Holdings LLC Through Cayuse Technologies, LLC Top agencies DOS (Department of State)	$1,276,283	0.2%	Rank history: not on the FY2021–FY2023 lists, #72 in FY2024 and #99 in FY2025; down 20 since Jul 2024–Jun 2025.
93	Spectrum Solutions Inc. Top agencies Army (Department of the Army)	$1,221,810	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
94	Innovative Mechanical Contractors LLC Top agencies Navy (Department of the Navy)	$1,220,262	0.2%	Rank history: not on the FY2021–FY2023 lists, #57 in FY2024 and #73 in FY2025; down 48 since Jul 2024–Jun 2025.
95	Tardan Group LLC Top agencies VA (Department of Veterans Affairs)	$1,189,257	0.2%	Rank history: not on the FY2021–FY2024 lists and #66 in FY2025; down 7 since Jul 2024–Jun 2025.
96	Forus Contracting, Inc. Top agencies Navy (Department of the Navy)	$1,187,354	0.2%	Rank history: not on the FY2021–FY2025 lists; up 183 since Jul 2024–Jun 2025.
97	Enviremedial Services, Inc. Top agencies Army (Department of the Army)	$1,144,310	0.2%	Rank history: #27 in FY2021, #26 in FY2022 and not on the FY2023–FY2025 lists; up 189 since Jul 2024–Jun 2025.
98	The Building People LLC Top agencies USAF (Department of the Air Force) GAO (Government Accountability Office) Army (Department of the Army)	$1,109,986	0.2%	Rank history: #63 in FY2021, #59 in FY2022, #61 in FY2023, #37 in FY2024 and not on the FY2025 list; down 68 since Jul 2024–Jun 2025.
99	SK Construction and Management Inc. Top agencies Army (Department of the Army)	$1,077,414	0.2%	Rank history: not on the FY2021–FY2023 lists, #49 in FY2024 and #41 in FY2025; down 76 since Jul 2024–Jun 2025.
100	CS One Co., Ltd. Top agencies Navy (Department of the Navy)	$1,062,647	0.2%	Rank history: #85 in FY2021, #70 in FY2022, #73 in FY2023 and not on the FY2024–FY2025 lists; up 234 since Jul 2024–Jun 2025.

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100 of 378 contractors listed here. See the rest on GovTribe.

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 $539 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.

Quick answers

Who were the top 10 PSC Z1AZ contractors in Jul 2025–Jun 2026?

1. Arctic Slope Regional Corporation ($44.4M), 2. Skookum Educational Programs ($27.2M), 3. Amentum Holdings, Inc. ($26.6M), 4. Global Systemized Industry ($20.3M), 5. Emcor Group Inc. ($15.8M), 6. Chenega Base & Logistics Services LLC ($15.1M), 7. Don Jones Construction Co., Inc. ($11.6M), 8. NCS / EML SB Joint Venture LLC ($11.5M), 9. Chugach Alaska Corporation ($9.77M), 10. LK Construction Co., Ltd. ($8.28M).

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