Top 100 Contractors in PSC N0: Installation of Equipment, FY2025

Name: Top 100 Contractors in PSC N0: Installation of Equipment, FY2025
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 50% of FY2025 PSC N0 contract dollars

Contract obligations: $2,546,335,679 Net of deobligations, by contracts coded PSC N0 or a code under it
Contractors: 1,607 Parent companies with an obligation
Largest contractor: Northrop Grumman Systems Corporation $416 million, 15.2% of obligations
Data as of: Oct 23, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Northrop Grumman Systems Corporation 5 awardees Top agencies MDA (DOD Missile Defense Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$416,045,635	15.2%	Rank history: #4 in FY2021, #2 in FY2022, #1 in FY2023 and #1 in FY2024; unchanged since FY2024.
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)	$198,775,815	7.2%	Rank history: #8 in FY2021, #6 in FY2022, #5 in FY2023 and #4 in FY2024; up 2 since FY2024.
3	M.c. Dean, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DOD (Department of Defense)	$179,741,285	6.6%	Rank history: #7 in FY2021, #4 in FY2022, #3 in FY2023 and #3 in FY2024; unchanged since FY2024.
4	Johnson Controls Federal Systems, LLC 3 awardees, including Johnson Controls Building Automation Systems, LLC and Johnson Controls Government Systems, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) WHS (DOD Washington Headquarters Service)	$147,165,778	5.4%	Rank history: not on the FY2021–FY2024 lists; new.
5	Cianbro Corporation Top agencies Navy (Department of the Navy)	$80,992,089	3.0%	Rank history: not on the FY2021–FY2024 lists; new.
6	Prism Maritime, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$80,279,377	2.9%	Rank history: #21 in FY2021, #28 in FY2022, #8 in FY2023 and #5 in FY2024; down 1 since FY2024.
7	MLU Services, LLC Top agencies DHS (Department of Homeland Security)	$73,659,424	2.7%	Rank history: #51 in FY2021, #5 in FY2022, #7 in FY2023 and #29 in FY2024; up 22 since FY2024.
8	Serco Inc Top agencies Navy (Department of the Navy)	$62,320,910	2.3%	Rank history: not on the FY2021–FY2022 lists, #12 in FY2023 and #6 in FY2024; down 2 since FY2024.
9	Chugach Government Solutions, LLC 2 awardees, including Chugach Dynamic Solutions LLC and Vector Planning & Services LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$60,483,981	2.2%	Rank history: not on the FY2021–FY2024 lists; new.
10	Leidos Holdings, Inc. 2 awardees, including Leidos, Inc. Top agencies Navy (Department of the Navy)	$57,961,515	2.1%	Rank history: #30 in FY2021, #10 in FY2022, #11 in FY2023 and #11 in FY2024; up 1 since FY2024.
11	Securityhunter, Inc. Top agencies SSA (Social Security Administration) Army (Department of the Army) OSD (Office of the Secretary of Defense)	$57,870,831	2.1%	Rank history: #27 in FY2021, #19 in FY2022, #19 in FY2023 and #22 in FY2024; up 11 since FY2024.
12	Arcus Group, LLC Top agencies DHS (Department of Homeland Security)	$38,010,985	1.4%	Rank history: not on the FY2021–FY2022 lists, #46 in FY2023 and #19 in FY2024; up 7 since FY2024.
13	Wells Global, LLC Top agencies DOT (Department of Transportation)	$37,317,367	1.4%	Rank history: #24 in FY2021, #18 in FY2022, #9 in FY2023 and #20 in FY2024; up 7 since FY2024.
14	Spectrum Solutions Inc. Top agencies Army (Department of the Army) DCSA (Defense Counterintelligence and Security Agency)	$34,655,938	1.3%	Rank history: #28 in FY2021, #17 in FY2022, #14 in FY2023 and #8 in FY2024; down 6 since FY2024.
15	VT Milcom Inc. Top agencies Navy (Department of the Navy)	$33,285,397	1.2%	Rank history: #12 in FY2021, #12 in FY2022, #10 in FY2023 and #13 in FY2024; down 2 since FY2024.
16	Oceanetics Inc. Top agencies Navy (Department of the Navy)	$30,617,231	1.1%	Rank history: not on the FY2021–FY2022 lists, #28 in FY2023 and #7 in FY2024; down 9 since FY2024.
17	Yellowstone Electric Co Top agencies Army (Department of the Army) USDA (Department of Agriculture)	$29,902,382	1.1%	Rank history: not on the FY2021–FY2024 lists; new.
18	The Boeing Company 4 awardees, including Tapestry Solutions, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$28,957,032	1.1%	Rank history: not on the FY2021 list, #1 in FY2022, #4 in FY2023 and #16 in FY2024; down 2 since FY2024.
19	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies USAF (Department of the Air Force)	$27,454,388	1.0%	Rank history: not on the FY2021–FY2022 lists, #43 in FY2023 and not on the FY2024 list; up 171 since FY2024.
20	Siemens Corporation 3 awardees, including Siemens Government Technologies Inc., Siemens Industry Inc. and Siemens Medical Solutions Usa, Inc. Top agencies Army (Department of the Army) DECA (Defense Commissary Agency) Navy (Department of the Navy)	$23,777,248	0.9%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2024; down 11 since FY2024.
21	Parsons Corporation 4 awardees, including Ptsi Managed Services Inc. and Xator LLC Top agencies Army (Department of the Army)	$23,600,465	0.9%	Rank history: #18 in FY2021, #15 in FY2022, #21 in FY2023 and #34 in FY2024; up 13 since FY2024.
22	Newbegin Enterprises Inc. Top agencies USAF (Department of the Air Force)	$21,978,563	0.8%	Rank history: not on the FY2021–FY2022 lists, #30 in FY2023 and #28 in FY2024; up 6 since FY2024.
23	Guidehouse Inc. Through Aptim Federal Services, LLC Top agencies DHS (Department of Homeland Security)	$20,638,000	0.8%	Rank history: not on the FY2021–FY2024 lists; new.
24	KBR Wyle Services LLC 2 awardees, including KBR Services, LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) Navy (Department of the Navy)	$20,345,922	0.7%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2024; down 10 since FY2024.
25	RTX Corporation 5 awardees, including Raytheon Company and Goodrich Corporation Top agencies Army (Department of the Army) Navy (Department of the Navy)	$20,005,631	0.7%	Rank history: not on the FY2021–FY2023 lists and #98 in FY2024; up 73 since FY2024.
26	Krueger International, Inc. Top agencies DOJ (Department of Justice)	$17,979,510	0.7%	Rank history: #23 in FY2021, #16 in FY2022, #26 in FY2023 and #25 in FY2024; down 1 since FY2024.
27	CACI International Inc. 2 awardees, including Caci, Inc. - Federal Top agencies Navy (Department of the Navy)	$15,630,025	0.6%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2023 and #39 in FY2024; up 12 since FY2024.
28	Rhoads Industries, Inc. Top agencies Navy (Department of the Navy)	$15,266,971	0.6%	Rank history: not on the FY2021–FY2024 lists; new.
29	Siemens Aktiengesellschaft Through Siemens Government Technologies Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) DHA (Defense Health Agency)	$14,863,041	0.5%	Rank history: #11 in FY2021, #8 in FY2022, #6 in FY2023 and #24 in FY2024; down 5 since FY2024.
30	Huntington Ingalls Industries, Inc. Through HII Fleet Support Group LLC Top agencies Navy (Department of the Navy)	$14,329,801	0.5%	Rank history: #16 in FY2021, #13 in FY2022, #15 in FY2023 and #23 in FY2024; down 7 since FY2024.
31	Sentinel Power Services, LLC Top agencies DOT (Department of Transportation)	$14,325,638	0.5%	Rank history: #60 in FY2021, #25 in FY2022, #40 in FY2023 and #31 in FY2024; unchanged since FY2024.
32	Chickasaw Nation 3 awardees, including Chickasaw Aerospace, LLC, Chickasaw Strategic Pointe, LLC and CNI Advantage, LLC Top agencies USAF (Department of the Air Force) DOT (Department of Transportation)	$13,648,223	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
33	Pavion Corp. 2 awardees, including Integrated Security Solutions Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$13,579,027	0.5%	Rank history: #29 in FY2021, #23 in FY2022, #17 in FY2023 and #43 in FY2024; up 10 since FY2024.
34	Mag DS Corp Top agencies Navy (Department of the Navy)	$13,011,656	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
35	Defense Systems and Solutions Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$12,420,432	0.5%	Rank history: not on the FY2021 list, #14 in FY2022, #49 in FY2023 and not on the FY2024 list; returned.
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; new.
37	Ho-Chunk, Inc. 2 awardees, including Flatwater Professional Services Company Top agencies Navy (Department of the Navy) USSOCOM (United States Special Operations Command) HHS (Department of Health and Human Services)	$11,636,879	0.4%	Rank history: not on the FY2021–FY2024 lists; up 189 since FY2024.
38	Birdi Systems, Inc. Top agencies HHS (Department of Health and Human Services)	$10,629,387	0.4%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2024; down 12 since FY2024.
39	Signet Technologies, Inc. Top agencies Army (Department of the Army) USUHS (DOD Uniformed Services University of the Health Sciences) DOJ (Department of Justice)	$10,570,394	0.4%	Rank history: #42 in FY2021, #20 in FY2022, not on the FY2023 list and #47 in FY2024; up 8 since FY2024.
40	Cusa Consulting LLC Top agencies DOT (Department of Transportation)	$9,952,802	0.4%	Rank history: #43 in FY2021, #30 in FY2022, #18 in FY2023 and #17 in FY2024; down 23 since FY2024.
41	Canadian Commercial Corporation Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$9,700,809	0.4%	Rank history: not on the FY2021–FY2023 lists and #35 in FY2024; down 6 since FY2024.
42	Koontz Electric Company, Incorporated Top agencies Army (Department of the Army)	$9,359,860	0.3%	Rank history: #70 in FY2021, not on the FY2022 list, #27 in FY2023 and not on the FY2024 list; up 175 since FY2024.
43	Veolia Water West Operating Services Inc. Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico)	$8,766,257	0.3%	Rank history: not on the FY2021–FY2023 lists and #50 in FY2024; up 7 since FY2024.
44	Standard Communications Inc. Top agencies VA (Department of Veterans Affairs)	$8,325,199	0.3%	Rank history: not on the FY2021–FY2023 lists and #58 in FY2024; up 14 since FY2024.
45	Tatitlek Federal Services LLC Top agencies DHS (Department of Homeland Security)	$8,308,221	0.3%	Rank history: not on the FY2021–FY2023 lists and #54 in FY2024; up 9 since FY2024.
46	Chinook Systems Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) MDA (DOD Missile Defense Agency)	$8,214,881	0.3%	Rank history: not on the FY2021–FY2023 lists and #18 in FY2024; down 28 since FY2024.
47	New Dominion Construction LLC Top agencies USAF (Department of the Air Force)	$8,077,319	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
48	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; new.
49	Briston Construction LLC Top agencies VA (Department of Veterans Affairs)	$7,731,558	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
50	Seneca Strategic Partners, LLC Top agencies OSD (Office of the Secretary of Defense)	$7,636,885	0.3%	Rank history: not on the FY2021–FY2023 lists and #42 in FY2024; down 8 since FY2024.
51	Veteran Elevated Solutions, LLC Top agencies VA (Department of Veterans Affairs)	$7,488,459	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
52	L3Harris Technologies, Inc. 3 awardees, including L3Harris Global Communications, Inc. and L3Harris Technologies Integrated Systems L.P. Top agencies Army (Department of the Army) DHS (Department of Homeland Security)	$7,271,377	0.3%	Rank history: #31 in FY2021, #80 in FY2022, not on the FY2023 list and #61 in FY2024; up 9 since FY2024.
53	Aleto, Inc. Top agencies Army (Department of the Army)	$6,732,528	0.2%	Rank history: not on the FY2021–FY2022 lists, #93 in FY2023 and #48 in FY2024; down 5 since FY2024.
54	Unico Mechanical Corp. Top agencies DOI (Department of the Interior)	$6,500,000	0.2%	Rank history: not on the FY2021–FY2023 lists and #97 in FY2024; up 43 since FY2024.
55	Cambridge International Systems, Inc. Top agencies Navy (Department of the Navy)	$6,429,281	0.2%	Rank history: #77 in FY2021, #84 in FY2022 and not on the FY2023–FY2024 lists; up 317 since FY2024.
56	Electronic Systems Services Inc. Top agencies Treasury (Department of the Treasury)	$6,019,472	0.2%	Rank history: not on the FY2021–FY2023 lists and #67 in FY2024; up 11 since FY2024.
57	Heritage Interiors LLC Top agencies DOE (Department of Energy) Army (Department of the Army) DOL (Department of Labor)	$5,509,810	0.2%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2023 and #86 in FY2024; up 29 since FY2024.
58	Skytek LLC Top agencies VA (Department of Veterans Affairs)	$5,434,406	0.2%	Rank history: not on the FY2021–FY2024 lists; up 90 since FY2024.
59	Prime Projects International (Construction ) Limited Top agencies Navy (Department of the Navy) DOS (Department of State)	$5,429,312	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
60	Quad J Inc. Top agencies DOT (Department of Transportation)	$5,311,136	0.2%	Rank history: #82 in FY2021, #42 in FY2022, #69 in FY2023 and #30 in FY2024; down 30 since FY2024.
61	Alamo-Evergreen JV LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$5,154,131	0.2%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2023 and #12 in FY2024; down 49 since FY2024.
62	Lockheed Martin Corporation Top agencies MDA (DOD Missile Defense Agency)	$4,875,419	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
63	Venergy Group LLC Top agencies VA (Department of Veterans Affairs)	$4,811,553	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
64	Low Voltage Wiring Ltd Top agencies Army (Department of the Army) DODEA (Department of Defense Education Activity) DISA (Defense Information Systems Agency)	$4,731,466	0.2%	Rank history: #93 in FY2021, #94 in FY2022, #68 in FY2023 and #75 in FY2024; up 11 since FY2024.
65	Innox LLC Top agencies Navy (Department of the Navy)	$4,717,000	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
66	Price Modern LLC Top agencies DHS (Department of Homeland Security) USUHS (DOD Uniformed Services University of the Health Sciences) NASA (National Aeronautics and Space Administration)	$4,677,499	0.2%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2023 and #73 in FY2024; up 7 since FY2024.
67	AECOM Through Disaster Solutions Alliance, LLC Top agencies DHS (Department of Homeland Security)	$4,672,649	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
68	Varada Defense LLC Top agencies Navy (Department of the Navy)	$4,556,102	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
69	Enfield Enterprises LLC Top agencies DOT (Department of Transportation)	$4,493,395	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
70	Epsilon Systems Solutions Inc. Top agencies Navy (Department of the Navy)	$4,447,540	0.2%	Rank history: #54 in FY2021, #48 in FY2022, #39 in FY2023 and #60 in FY2024; down 10 since FY2024.
71	Four Winds Mechanical HTC / AC Inc. Top agencies Army (Department of the Army)	$3,991,634	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
72	Aaecon General Contracting LLC Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$3,761,491	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
73	BPD Engineering, LLC Top agencies DOJ (Department of Justice)	$3,687,706	0.1%	Rank history: #47 in FY2021, #32 in FY2022, #56 in FY2023 and #89 in FY2024; up 16 since FY2024.
74	Evergreen Fire Alarms LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$3,456,826	0.1%	Rank history: not on the FY2021 list, #64 in FY2022, #36 in FY2023 and not on the FY2024 list; up 31 since FY2024.
75	Dawson Mcg, Inc. Top agencies Navy (Department of the Navy) EPA (Environmental Protection Agency) Commerce (Department of Commerce)	$3,431,589	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
76	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; new.
77	Veterans Development Corporation, Inc. Top agencies VA (Department of Veterans Affairs)	$3,290,003	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
78	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; new.
79	Schneider Electric Federal, Inc. Top agencies Navy (Department of the Navy) DHA (Defense Health Agency) Army (Department of the Army)	$3,247,863	0.1%	Rank history: not on the FY2021–FY2023 lists and #57 in FY2024; down 22 since FY2024.
80	Purvis Systems Incorporated 2 awardees Top agencies Navy (Department of the Navy)	$3,199,233	0.1%	Rank history: not on the FY2021–FY2022 lists, #97 in FY2023 and #74 in FY2024; down 6 since FY2024.
81	JSK Diego Services LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$3,174,163	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
82	Johnson Controls Security Solutions LLC Top agencies Army (Department of the Army) DHS (Department of Homeland Security) Navy (Department of the Navy)	$3,068,768	0.1%	Rank history: not on the FY2021–FY2023 lists and #95 in FY2024; up 13 since FY2024.
83	Electripro, Inc. Top agencies DHS (Department of Homeland Security)	$3,041,806	0.1%	Rank history: not on the FY2021 list, #54 in FY2022, #82 in FY2023 and not on the FY2024 list; returned.
84	Scientific Research Corporation Top agencies Navy (Department of the Navy)	$3,038,889	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
85	Artek Insaat Taahhut Turizm Tekstil Tarim Gida Sanayi VE Ticaret Limited Sirketi Top agencies DOS (Department of State)	$3,029,488	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
86	Prime Mechanical of Wisconsin LLC Top agencies Army (Department of the Army)	$3,014,527	0.1%	Rank history: #89 in FY2021, not on the FY2022 list, #76 in FY2023 and not on the FY2024 list; up 18 since FY2024.
87	Lira Electric LLC Through Lira EC JV LLC Top agencies USAF (Department of the Air Force)	$2,987,454	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
88	Cmn, LLC Top agencies DHS (Department of Homeland Security)	$2,967,000	0.1%	Rank history: not on the FY2021–FY2024 lists; up 103 since FY2024.
89	Syn-Tech System, Inc. Top agencies DHS (Department of Homeland Security)	$2,910,993	0.1%	Rank history: not on the FY2021–FY2023 lists and #92 in FY2024; up 3 since FY2024.
90	C.n.s. Communications, LLC Top agencies DOT (Department of Transportation)	$2,875,443	0.1%	Rank history: not on the FY2021 list, #36 in FY2022, #42 in FY2023 and #38 in FY2024; down 52 since FY2024.
91	Federal Express Corporation Top agencies USAF (Department of the Air Force)	$2,870,538	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
92	Palgag - Z.g.s Top agencies DOS (Department of State)	$2,801,527	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
93	Alvarez LLC Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$2,751,959	0.1%	Rank history: not on the FY2021–FY2024 lists; up 70 since FY2024.
94	Urban Electric, Inc. Top agencies DOT (Department of Transportation)	$2,705,035	0.1%	Rank history: not on the FY2021 list, #38 in FY2022, #48 in FY2023 and #56 in FY2024; down 38 since FY2024.
95	Sawyer Services Inc Top agencies USAF (Department of the Air Force)	$2,673,358	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
96	MC Dodd Construction LLC Top agencies DHS (Department of Homeland Security)	$2,555,512	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
97	TM3 Solutions Inc. Top agencies DHRA (Defense Human Resources Activity) OSD (Office of the Secretary of Defense)	$2,551,767	0.1%	Rank history: not on the FY2021–FY2023 lists and #33 in FY2024; down 64 since FY2024.
98	Warfeather, LLC Top agencies DHA (Defense Health Agency)	$2,533,519	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
99	Rockville Fuel & Feed Company, Incorporated Top agencies Army (Department of the Army)	$2,477,790	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
100	CMP Commercial Construction Inc Top agencies DOT (Department of Transportation)	$2,416,017	0.1%	Rank history: not on the FY2021–FY2024 lists; up 103 since FY2024.

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100 of 1,607 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC N0

Code	Net obligations	Largest contractor
N059 Installation of Equipment: Electrical and Electronic Equipment Components	$877,257,726	Johnson Controls Federal Systems, LLC
N012 Installation of Equipment: Fire Control Equipment	$296,018,827	Northrop Grumman Systems Corporation
N063 Installation of Equipment: Alarm, Signal, and Security Detection Systems	$191,041,643	Securityhunter, Inc.
N099 Installation of Equipment: Miscellaneous	$141,656,109	Cianbro Corporation
N025 Installation of Equipment: Vehicular Equipment Components	$123,132,487	BAE Systems
N045 Installation of Equipment: Plumbing, Heating, and Waste Disposal Equipment	$111,814,570	MLU Services, LLC
N061 Installation of Equipment: Electric Wire, and Power and Distribution Equipment	$85,166,695	Yellowstone Electric Co
N071 Installation of Equipment: Furniture	$64,533,055	Krueger International, Inc.
N041 Installation of Equipment: Refrigeration, Air Conditioning, and Air Circulating Equipment	$43,977,049	New Dominion Construction LLC
N066 Installation of Equipment: Instruments and Laboratory Equipment	$27,959,187	Rhoads Industries, Inc.
N065 Installation of Equipment: Medical, Dental, and Veterinary Equipment and Supplies	$16,553,041	Briston Construction LLC
N072 Installation of Equipment: Household and Commercial Furnishings and Appliances	$12,908,873	Ho-Chunk, Inc.
N056 Installation of Equipment: Construction and Building Materials	$6,234,540	Collins Construction Services, Inc.
N023 Installation of Equipment: Ground Effect Vehicles, Motor Vehicles, Trailers, and Cycles	$5,987,051	Frontline Mobile Tech, LLC
N049 Installation of Equipment: Maintenance and Repair Shop Equipment	$5,788,983	Professionals HIR LLC

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 $2.74 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.
Fiscal year 2025 ran Oct 1, 2024 – Sep 30, 2025. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
Rank changes compare with FY2024. "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. The step from FY2024 takes the color of the rank change beside it.
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 N0 contractors in FY2025?

1. Northrop Grumman Systems Corporation ($416M), 2. BAE Systems ($199M), 3. M.c. Dean, Inc. ($180M), 4. Johnson Controls Federal Systems, LLC ($147M), 5. Cianbro Corporation ($81M), 6. Prism Maritime, Inc. ($80.3M), 7. MLU Services, LLC ($73.7M), 8. Serco Inc ($62.3M), 9. Chugach Government Solutions, LLC ($60.5M), 10. Leidos Holdings, Inc. ($58M).

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