Top 100 Contractors in PSC N: Installation of Equipment, Jul 2025–Jun 2026

Name: Top 100 Contractors in PSC N: Installation of Equipment, 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 52% of PSC N contract dollars from July 2025 through June 2026

Contract obligations: $2,519,470,725 Net of deobligations, by contracts coded PSC N or a code under it
Contractors: 1,490 Parent companies with an obligation
Largest contractor: Northrop Grumman Systems Corporation $542 million, 20.0% of obligations
Data as of: Oct 16, 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	Northrop Grumman Systems Corporation 5 awardees Top agencies MDA (DOD Missile Defense Agency) OSD (Office of the Secretary of Defense) Navy (Department of the Navy)	$541,719,597	20.0%	Rank history: #4 in FY2021, #2 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since Jul 2024–Jun 2025.
2	BAE Systems 3 awardees, including BAE Systems Technology Solutions & Services Inc. and BAE Systems Land and Armaments L.P. Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$207,722,873	7.7%	Rank history: #8 in FY2021, #6 in FY2022, #5 in FY2023, #4 in FY2024 and #2 in FY2025; up 2 since Jul 2024–Jun 2025.
3	M.c. Dean, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DOD (Department of Defense)	$125,238,221	4.6%	Rank history: #7 in FY2021, #4 in FY2022, #3 in FY2023, #3 in FY2024 and #3 in FY2025; down 1 since Jul 2024–Jun 2025.
4	Johnson Controls Building Automation Systems, LLC 2 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy) OSD (Office of the Secretary of Defense)	$121,670,316	4.5%	Rank history: #36 in FY2021, not on the FY2022–FY2023 lists, #2 in FY2024 and #4 in FY2025; down 1 since Jul 2024–Jun 2025.
5	Prism Maritime, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$101,263,687	3.7%	Rank history: #21 in FY2021, #28 in FY2022, #8 in FY2023, #5 in FY2024 and #6 in FY2025; up 5 since Jul 2024–Jun 2025.
6	Cianbro Corporation Top agencies Navy (Department of the Navy)	$76,106,089	2.8%	Rank history: not on the FY2021–FY2024 lists and #5 in FY2025; up 14 since Jul 2024–Jun 2025.
7	Serco Inc Top agencies Navy (Department of the Navy)	$63,363,425	2.3%	Rank history: not on the FY2021–FY2022 lists, #12 in FY2023, #6 in FY2024 and #8 in FY2025; up 4 since Jul 2024–Jun 2025.
8	Vector Planning & Services LLC Top agencies Navy (Department of the Navy)	$57,948,698	2.1%	Rank history: not on the FY2021–FY2024 lists and #19 in FY2025; up 32 since Jul 2024–Jun 2025.
9	Securityhunter, Inc. Top agencies SSA (Social Security Administration) OSD (Office of the Secretary of Defense)	$56,406,128	2.1%	Rank history: #27 in FY2021, #19 in FY2022, #19 in FY2023, #22 in FY2024 and #10 in FY2025; up 19 since Jul 2024–Jun 2025.
10	Leidos Holdings, Inc. 2 awardees, including Leidos, Inc. Top agencies Navy (Department of the Navy)	$53,276,055	2.0%	Rank history: #30 in FY2021, #10 in FY2022, #11 in FY2023, #11 in FY2024 and #9 in FY2025; down 2 since Jul 2024–Jun 2025.
11	Spectrum Solutions Inc. Top agencies Army (Department of the Army) DCSA (Defense Counterintelligence and Security Agency)	$40,571,022	1.5%	Rank history: #28 in FY2021, #17 in FY2022, #14 in FY2023, #8 in FY2024 and #13 in FY2025; down 4 since Jul 2024–Jun 2025.
12	Wells Global, LLC Top agencies DOT (Department of Transportation)	$31,725,439	1.2%	Rank history: #24 in FY2021, #18 in FY2022, #9 in FY2023, #20 in FY2024 and #12 in FY2025; up 7 since Jul 2024–Jun 2025.
13	Newbegin Enterprises Inc. Top agencies USAF (Department of the Air Force)	$30,874,922	1.1%	Rank history: not on the FY2021–FY2022 lists, #30 in FY2023, #28 in FY2024 and #23 in FY2025; up 12 since Jul 2024–Jun 2025.
14	Lockheed Martin Corporation 4 awardees Top agencies DHS (Department of Homeland Security) MDA (DOD Missile Defense Agency) Navy (Department of the Navy)	$29,901,736	1.1%	Rank history: #6 in FY2021, not on the FY2022 list, #25 in FY2023, #40 in FY2024 and #63 in FY2025; up 86 since Jul 2024–Jun 2025.
15	Chugach Dynamic Solutions LLC Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security)	$29,702,549	1.1%	Rank history: not on the FY2021–FY2023 lists, #46 in FY2024 and #15 in FY2025; up 16 since Jul 2024–Jun 2025.
16	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies USAF (Department of the Air Force)	$25,518,471	0.9%	Rank history: not on the FY2021–FY2022 lists, #43 in FY2023, not on the FY2024 list and #20 in FY2025; up 19 since Jul 2024–Jun 2025.
17	Parsons Corporation 3 awardees, including Ptsi Managed Services Inc. and Xator LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$24,759,246	0.9%	Rank history: #18 in FY2021, #15 in FY2022, #21 in FY2023, #34 in FY2024 and #21 in FY2025; up 25 since Jul 2024–Jun 2025.
18	VT Milcom Inc. Top agencies Navy (Department of the Navy)	$23,924,036	0.9%	Rank history: #12 in FY2021, #12 in FY2022, #10 in FY2023, #13 in FY2024 and #14 in FY2025; down 5 since Jul 2024–Jun 2025.
19	CACI International Inc. 2 awardees, including Caci, Inc. - Federal Top agencies Navy (Department of the Navy)	$22,900,001	0.8%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2023, #39 in FY2024 and #28 in FY2025; up 10 since Jul 2024–Jun 2025.
20	RTX Corporation 9 awardees, including Raytheon Company and Goodrich Corporation Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$22,469,708	0.8%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2023, #98 in FY2024 and #26 in FY2025; up 68 since Jul 2024–Jun 2025.
21	Defense Systems and Solutions Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$22,271,933	0.8%	Rank history: not on the FY2021 list, #14 in FY2022, #49 in FY2023, not on the FY2024 list and #35 in FY2025; new, not ranked in Jul 2024–Jun 2025.
22	Heritage Interiors LLC Top agencies DOJ (Department of Justice) DOE (Department of Energy) DOL (Department of Labor)	$21,273,978	0.8%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2023, #86 in FY2024 and #58 in FY2025; up 23 since Jul 2024–Jun 2025.
23	Krueger International, Inc. Top agencies DOJ (Department of Justice)	$20,488,187	0.8%	Rank history: #23 in FY2021, #16 in FY2022, #26 in FY2023, #25 in FY2024 and #27 in FY2025; up 3 since Jul 2024–Jun 2025.
24	IAP World Services, Inc. Top agencies USAF (Department of the Air Force)	$19,048,660	0.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
25	Rhoads Industries, Inc. Top agencies Navy (Department of the Navy)	$18,733,680	0.7%	Rank history: not on the FY2021–FY2024 lists and #29 in FY2025; up 34 since Jul 2024–Jun 2025.
26	Chickasaw Aerospace, LLC Top agencies USAF (Department of the Air Force)	$17,614,201	0.6%	Rank history: not on the FY2021–FY2023 lists, #45 in FY2024 and #40 in FY2025; up 29 since Jul 2024–Jun 2025.
27	L3Harris Technologies, Inc. 3 awardees, including L3Harris Global Communications, Inc. and L3Harris Technologies Integrated Systems L.P. Top agencies Army (Department of the Army) Navy (Department of the Navy) DHS (Department of Homeland Security)	$15,183,406	0.6%	Rank history: #31 in FY2021, #80 in FY2022, not on the FY2023 list, #61 in FY2024 and #53 in FY2025; up 10 since Jul 2024–Jun 2025.
28	Siemens Aktiengesellschaft Through Siemens Government Technologies Inc. Top agencies Army (Department of the Army) DHA (Defense Health Agency)	$13,879,966	0.5%	Rank history: #11 in FY2021, #8 in FY2022, #6 in FY2023, #24 in FY2024 and #30 in FY2025; up 24 since Jul 2024–Jun 2025.
29	Veteran Information Technologies, LLC Top agencies VA (Department of Veterans Affairs)	$12,798,028	0.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
30	Oceanetics Inc. Top agencies Navy (Department of the Navy)	$12,696,165	0.5%	Rank history: not on the FY2021–FY2022 lists, #28 in FY2023, #7 in FY2024 and #16 in FY2025; down 21 since Jul 2024–Jun 2025.
31	Ho-Chunk, Inc. 2 awardees, including Flatwater Professional Services Company and Flatwater Office Solutions Company Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$12,687,018	0.5%	Rank history: not on the FY2021–FY2024 lists and #37 in FY2025; up 15 since Jul 2024–Jun 2025.
32	V2X, Inc. 2 awardees, including V2X Systems LLC and Advantor Systems II LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$12,473,041	0.5%	Rank history: not on the FY2021–FY2023 lists, #94 in FY2024 and not on the FY2025 list; up 75 since Jul 2024–Jun 2025.
33	Trace Systems, Inc. Top agencies Army (Department of the Army)	$12,456,087	0.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
34	MLU Services, LLC Top agencies DHS (Department of Homeland Security)	$12,375,509	0.5%	Rank history: #51 in FY2021, #5 in FY2022, #7 in FY2023, #29 in FY2024 and #7 in FY2025; down 29 since Jul 2024–Jun 2025.
35	Sentinel Power Services, LLC Top agencies DOT (Department of Transportation)	$12,047,737	0.4%	Rank history: #60 in FY2021, #25 in FY2022, #40 in FY2023, #31 in FY2024 and #32 in FY2025; up 15 since Jul 2024–Jun 2025.
36	ACG Systems, Inc. Top agencies USAF (Department of the Air Force)	$11,960,184	0.4%	Rank history: not on the FY2021–FY2024 lists and #36 in FY2025; new, not ranked in Jul 2024–Jun 2025.
37	Birdi Systems, Inc. Top agencies HHS (Department of Health and Human Services)	$10,756,755	0.4%	Rank history: not on the FY2021–FY2023 lists, #26 in FY2024 and #38 in FY2025; down 5 since Jul 2024–Jun 2025.
38	Veolia Water West Operating Services Inc. Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico)	$10,746,009	0.4%	Rank history: not on the FY2021–FY2023 lists, #50 in FY2024 and #44 in FY2025; up 184 since Jul 2024–Jun 2025.
39	Integrated Security Solutions Inc. Top agencies Army (Department of the Army)	$10,737,347	0.4%	Rank history: not on the FY2021–FY2023 lists, #59 in FY2024 and #33 in FY2025; down 9 since Jul 2024–Jun 2025.
40	Mag DS Corp Top agencies Navy (Department of the Navy)	$10,611,281	0.4%	Rank history: not on the FY2021–FY2024 lists and #34 in FY2025; up 7 since Jul 2024–Jun 2025.
41	Huntington Ingalls Industries, Inc. 2 awardees, including HII Fleet Support Group LLC Top agencies Navy (Department of the Navy)	$10,203,607	0.4%	Rank history: #16 in FY2021, #13 in FY2022, #15 in FY2023, #23 in FY2024 and #31 in FY2025; down 18 since Jul 2024–Jun 2025.
42	Chinook Systems Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$9,927,853	0.4%	Rank history: not on the FY2021–FY2023 lists, #18 in FY2024 and #47 in FY2025; down 20 since Jul 2024–Jun 2025.
43	DAX Safety & Staffing Solutions, LLC Top agencies VA (Department of Veterans Affairs)	$9,364,794	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
44	Cusa Consulting LLC Top agencies DOT (Department of Transportation)	$8,980,420	0.3%	Rank history: #43 in FY2021, #30 in FY2022, #18 in FY2023, #17 in FY2024 and #41 in FY2025; down 23 since Jul 2024–Jun 2025.
45	Canadian Commercial Corporation Top agencies USAF (Department of the Air Force)	$8,719,966	0.3%	Rank history: not on the FY2021–FY2023 lists, #35 in FY2024 and #42 in FY2025; down 11 since Jul 2024–Jun 2025.
46	Standard Communications Inc. Top agencies VA (Department of Veterans Affairs)	$8,483,423	0.3%	Rank history: not on the FY2021–FY2023 lists, #58 in FY2024 and #45 in FY2025; up 16 since Jul 2024–Jun 2025.
47	Siemens Corporation 3 awardees, including Siemens Government Technologies Inc., Siemens Medical Solutions Usa, Inc. and Siemens Healthcare Diagnostics Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) VA (Department of Veterans Affairs)	$8,336,989	0.3%	Rank history: not on the FY2021–FY2023 lists, #9 in FY2024 and #22 in FY2025; down 41 since Jul 2024–Jun 2025.
48	Koontz Electric Company, Incorporated Top agencies Army (Department of the Army)	$8,321,121	0.3%	Rank history: #70 in FY2021, not on the FY2022 list, #27 in FY2023, not on the FY2024 list and #43 in FY2025; up 130 since Jul 2024–Jun 2025.
49	T.C.I. Construction & Management Co. Inc. Top agencies VA (Department of Veterans Affairs)	$7,894,000	0.3%	Rank history: not on the FY2021–FY2024 lists and #49 in FY2025; new, not ranked in Jul 2024–Jun 2025.
50	Seneca Strategic Partners, LLC Top agencies OSD (Office of the Secretary of Defense)	$7,742,459	0.3%	Rank history: not on the FY2021–FY2023 lists, #42 in FY2024 and #51 in FY2025; up 3 since Jul 2024–Jun 2025.
51	Briston Construction LLC Top agencies VA (Department of Veterans Affairs)	$7,731,558	0.3%	Rank history: not on the FY2021–FY2024 lists and #50 in FY2025; new, not ranked in Jul 2024–Jun 2025.
52	Venergy Group LLC Top agencies VA (Department of Veterans Affairs) DOL (Department of Labor)	$7,116,282	0.3%	Rank history: not on the FY2021–FY2024 lists and #64 in FY2025; up 240 since Jul 2024–Jun 2025.
53	Unico Mechanical Corp. Top agencies DOI (Department of the Interior)	$6,638,765	0.2%	Rank history: not on the FY2021–FY2023 lists, #97 in FY2024 and #55 in FY2025; up 42 since Jul 2024–Jun 2025.
54	Arcus Group, LLC Top agencies DHS (Department of Homeland Security)	$6,464,210	0.2%	Rank history: not on the FY2021–FY2022 lists, #46 in FY2023, #19 in FY2024 and #11 in FY2025; down 42 since Jul 2024–Jun 2025.
55	Alamo-Evergreen JV LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) DHA (Defense Health Agency)	$5,737,634	0.2%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2023, #12 in FY2024 and #62 in FY2025; down 40 since Jul 2024–Jun 2025.
56	Signet Technologies, Inc. Top agencies Army (Department of the Army) DOJ (Department of Justice) USDA (Department of Agriculture)	$5,509,793	0.2%	Rank history: #42 in FY2021, #20 in FY2022, not on the FY2023 list, #47 in FY2024 and #39 in FY2025; down 23 since Jul 2024–Jun 2025.
57	Aleto, Inc. Top agencies Army (Department of the Army)	$5,470,161	0.2%	Rank history: not on the FY2021–FY2022 lists, #93 in FY2023, #48 in FY2024 and #54 in FY2025; up 14 since Jul 2024–Jun 2025.
58	Skytek LLC Top agencies VA (Department of Veterans Affairs)	$5,436,776	0.2%	Rank history: not on the FY2021–FY2024 lists and #59 in FY2025; up 84 since Jul 2024–Jun 2025.
59	Prime Projects International (Construction ) Limited Top agencies Navy (Department of the Navy) DOS (Department of State)	$5,419,112	0.2%	Rank history: not on the FY2021–FY2024 lists and #60 in FY2025; new, not ranked in Jul 2024–Jun 2025.
60	Purvis Systems Incorporated 2 awardees Top agencies Navy (Department of the Navy)	$5,407,233	0.2%	Rank history: not on the FY2021–FY2022 lists, #97 in FY2023, #74 in FY2024 and #82 in FY2025; up 25 since Jul 2024–Jun 2025.
61	General Electric Company Top agencies USSOCOM (United States Special Operations Command)	$5,305,220	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
62	Accelint Global Inc. Top agencies Navy (Department of the Navy)	$4,970,616	0.2%	Rank history: #56 in FY2021, #62 in FY2022, #86 in FY2023, #68 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
63	Price Modern LLC Top agencies DHS (Department of Homeland Security) NRC (Nuclear Regulatory Commission) USUHS (DOD Uniformed Services University of the Health Sciences)	$4,880,097	0.2%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2023, #73 in FY2024 and #67 in FY2025; up 6 since Jul 2024–Jun 2025.
64	Nana Regional Corporation, Inc. Through Akima Systems Engineering LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$4,779,259	0.2%	Rank history: not on the FY2021–FY2025 lists; up 292 since Jul 2024–Jun 2025.
65	Innox LLC Top agencies Navy (Department of the Navy)	$4,717,000	0.2%	Rank history: not on the FY2021–FY2024 lists and #66 in FY2025; new, not ranked in Jul 2024–Jun 2025.
66	HQE Systems Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$4,674,818	0.2%	Rank history: not on the FY2021–FY2025 lists; up 266 since Jul 2024–Jun 2025.
67	KBR Wyle Services LLC 2 awardees, including KBR Services, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$4,635,898	0.2%	Rank history: not on the FY2021–FY2023 lists, #14 in FY2024 and #25 in FY2025; down 53 since Jul 2024–Jun 2025.
68	Mvl-Bromgrove JV LLC Top agencies Navy (Department of the Navy)	$4,590,217	0.2%	Rank history: not on the FY2021–FY2023 lists, #87 in FY2024 and not on the FY2025 list; up 12 since Jul 2024–Jun 2025.
69	Varada Defense LLC Top agencies Navy (Department of the Navy)	$4,556,102	0.2%	Rank history: not on the FY2021–FY2024 lists and #69 in FY2025; new, not ranked in Jul 2024–Jun 2025.
70	Cambridge International Systems, Inc. Top agencies Navy (Department of the Navy)	$4,500,524	0.2%	Rank history: #77 in FY2021, #84 in FY2022, not on the FY2023–FY2024 lists and #56 in FY2025; up 22 since Jul 2024–Jun 2025.
71	Four Winds Mechanical HTC / AC Inc. Top agencies Army (Department of the Army)	$4,156,136	0.2%	Rank history: not on the FY2021–FY2024 lists and #72 in FY2025; new, not ranked in Jul 2024–Jun 2025.
72	Barry Williams Electric Inc. Top agencies DOT (Department of Transportation)	$3,852,529	0.1%	Rank history: not on the FY2021 list, #71 in FY2022, #55 in FY2023 and not on the FY2024–FY2025 lists; up 87 since Jul 2024–Jun 2025.
73	Low Voltage Wiring Ltd Top agencies Army (Department of the Army) DODEA (Department of Defense Education Activity) DHA (Defense Health Agency)	$3,841,503	0.1%	Rank history: #93 in FY2021, #94 in FY2022, #68 in FY2023, #75 in FY2024 and #65 in FY2025; down 15 since Jul 2024–Jun 2025.
74	Evergreen Fire Alarms LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$3,796,508	0.1%	Rank history: not on the FY2021 list, #64 in FY2022, #36 in FY2023, not on the FY2024 list and #76 in FY2025; up 27 since Jul 2024–Jun 2025.
75	Aaecon General Contracting LLC Top agencies VA (Department of Veterans Affairs)	$3,754,967	0.1%	Rank history: not on the FY2021–FY2024 lists and #73 in FY2025; new, not ranked in Jul 2024–Jun 2025.
76	AES Electrical, LLC Top agencies National Gallery of Art	$3,669,161	0.1%	Rank history: not on the FY2021 list, #91 in FY2022, #72 in FY2023 and not on the FY2024–FY2025 lists; up 61 since Jul 2024–Jun 2025.
77	Brook Special Solutions Ltd Top agencies USAF (Department of the Air Force)	$3,430,550	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
78	Schneider Electric Federal, Inc. Top agencies Navy (Department of the Navy) DHA (Defense Health Agency) Army (Department of the Army)	$3,402,146	0.1%	Rank history: not on the FY2021–FY2023 lists, #57 in FY2024 and #81 in FY2025; down 21 since Jul 2024–Jun 2025.
79	Western Metal Supply Company, Inc. Top agencies USAF (Department of the Air Force)	$3,388,430	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
80	Dawson Mcg, Inc. Top agencies Navy (Department of the Navy) Commerce (Department of Commerce)	$3,334,355	0.1%	Rank history: not on the FY2021–FY2024 lists and #77 in FY2025; new, not ranked in Jul 2024–Jun 2025.
81	Electripro, Inc. Top agencies DHS (Department of Homeland Security)	$3,327,500	0.1%	Rank history: not on the FY2021 list, #54 in FY2022, #82 in FY2023, not on the FY2024 list and #85 in FY2025; new, not ranked in Jul 2024–Jun 2025.
82	Artek Insaat Taahhut Turizm Tekstil Tarim Gida Sanayi VE Ticaret Limited Sirketi Top agencies DOS (Department of State)	$3,315,429	0.1%	Rank history: not on the FY2021–FY2024 lists and #87 in FY2025; new, not ranked in Jul 2024–Jun 2025.
83	Solutions71, LLC Top agencies USAF (Department of the Air Force)	$3,308,764	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
84	Collins Construction Services, Inc. Top agencies USAF (Department of the Air Force)	$3,298,483	0.1%	Rank history: not on the FY2021–FY2024 lists and #78 in FY2025; new, not ranked in Jul 2024–Jun 2025.
85	Veterans Development Corporation, Inc. Top agencies VA (Department of Veterans Affairs)	$3,290,003	0.1%	Rank history: not on the FY2021–FY2024 lists and #79 in FY2025; new, not ranked in Jul 2024–Jun 2025.
86	Blue Spader Contractors Inc. Top agencies USAF (Department of the Air Force)	$3,281,559	0.1%	Rank history: not on the FY2021–FY2024 lists and #80 in FY2025; new, not ranked in Jul 2024–Jun 2025.
87	Federal Express Corporation Top agencies USAF (Department of the Air Force)	$3,082,012	0.1%	Rank history: not on the FY2021–FY2024 lists and #93 in FY2025; new, not ranked in Jul 2024–Jun 2025.
88	Mayhew Technology Solutions, LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$3,041,542	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
89	Checkmate Global, LLC Top agencies DHS (Department of Homeland Security)	$3,004,788	0.1%	Rank history: #19 in FY2021, not on the FY2022–FY2023 lists, #21 in FY2024 and not on the FY2025 list; down 51 since Jul 2024–Jun 2025.
90	Selecttech Services Corporation Top agencies USAF (Department of the Air Force)	$2,993,774	0.1%	Rank history: not on the FY2021–FY2022 lists, #83 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
91	Syn-Tech System, Inc. Top agencies DHS (Department of Homeland Security)	$2,989,444	0.1%	Rank history: not on the FY2021–FY2023 lists, #92 in FY2024 and #91 in FY2025; unchanged since Jul 2024–Jun 2025.
92	Prime Mechanical of Wisconsin LLC Top agencies Army (Department of the Army)	$2,989,433	0.1%	Rank history: #89 in FY2021, not on the FY2022 list, #76 in FY2023, not on the FY2024 list and #88 in FY2025; up 168 since Jul 2024–Jun 2025.
93	Forms & Supply, Inc. Top agencies Army (Department of the Army)	$2,852,526	0.1%	Rank history: not on the FY2021–FY2025 lists; up 28 since Jul 2024–Jun 2025.
94	MC Dodd Construction LLC Top agencies DHS (Department of Homeland Security)	$2,835,252	0.1%	Rank history: not on the FY2021–FY2024 lists and #98 in FY2025; new, not ranked in Jul 2024–Jun 2025.
95	Warfeather, LLC Top agencies DHA (Defense Health Agency)	$2,807,582	0.1%	Rank history: not on the FY2021–FY2024 lists and #100 in FY2025; new, not ranked in Jul 2024–Jun 2025.
96	Palgag - Z.g.s Top agencies DOS (Department of State)	$2,801,527	0.1%	Rank history: not on the FY2021–FY2024 lists and #94 in FY2025; new, not ranked in Jul 2024–Jun 2025.
97	Sawyer Services Inc Top agencies USAF (Department of the Air Force)	$2,673,358	0.1%	Rank history: not on the FY2021–FY2024 lists and #97 in FY2025; new, not ranked in Jul 2024–Jun 2025.
98	JSK Diego Services LLC Top agencies Navy (Department of the Navy)	$2,632,876	0.1%	Rank history: not on the FY2021–FY2024 lists and #83 in FY2025; up 51 since Jul 2024–Jun 2025.
99	Quad J Inc. Top agencies DOT (Department of Transportation)	$2,558,107	0.1%	Rank history: #82 in FY2021, #42 in FY2022, #69 in FY2023, #30 in FY2024 and #61 in FY2025; down 63 since Jul 2024–Jun 2025.
100	JPL & Associates, LLC Top agencies VA (Department of Veterans Affairs)	$2,463,637	0.1%	Rank history: not on the FY2021–FY2025 lists; up 184 since Jul 2024–Jun 2025.

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100 of 1,490 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC N

Code	Net obligations	Largest contractor
N0 Installation of Equipment	$2,519,470,725	Northrop Grumman Systems Corporation

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 $2.71 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. 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 N contractors in Jul 2025–Jun 2026?

1. Northrop Grumman Systems Corporation ($542M), 2. BAE Systems ($208M), 3. M.c. Dean, Inc. ($125M), 4. Johnson Controls Building Automation Systems, LLC ($122M), 5. Prism Maritime, Inc. ($101M), 6. Cianbro Corporation ($76.1M), 7. Serco Inc ($63.4M), 8. Vector Planning & Services LLC ($57.9M), 9. Securityhunter, Inc. ($56.4M), 10. Leidos Holdings, Inc. ($53.3M).

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