Top 100 Contractors in PSC N0: Installation of Equipment, FY2023

Name: Top 100 Contractors in PSC N0: Installation of Equipment, FY2023
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2022 – Sep 30, 2023 Code page on GovTribe

The top 10 won 41% of FY2023 PSC N0 contract dollars

Contract obligations: $2,345,733,677 Net of deobligations, by contracts coded PSC N0 or a code under it
Contractors: 1,818 Parent companies with an obligation
Largest contractor: Northrop Grumman Corporation $220 million, 8.6% 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	Northrop Grumman Corporation 4 awardees, including Northrop Grumman Systems Corporation Top agencies MDA (DOD Missile Defense Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$220,492,186	8.6%	Rank history: #4 in FY2021, #2 in FY2022, #1 in FY2024 and #1 in FY2025; up 1 since FY2022.
2	Johnson Controls Industries 8 awardees, including Johnson Controls Building Automation Systems, LLC, Johnson Controls, Inc. and Tyco Fire and Security Nederland B.V. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$152,742,918	6.0%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2024 and not on the FY2025 list; new.
3	M.c. Dean, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DOD (Department of Defense)	$113,829,496	4.5%	Rank history: #7 in FY2021, #4 in FY2022, #3 in FY2024 and #3 in FY2025; up 1 since FY2022.
4	The Boeing Company 2 awardees Top agencies USAF (Department of the Air Force)	$110,119,487	4.3%	Rank history: not on the FY2021 list, #1 in FY2022, #16 in FY2024 and #18 in FY2025; down 3 since FY2022.
5	BAE Systems PLC 2 awardees, including BAE Systems Technology Solutions & Services Inc. and BAE Systems Information and Electronic Systems Integration Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$96,393,168	3.8%	Rank history: #8 in FY2021, #6 in FY2022, #4 in FY2024 and #2 in FY2025; up 1 since FY2022.
6	Siemens Aktiengesellschaft 4 awardees, including Siemens Government Technologies Inc., Siemens Industry Inc. and Siemens Medical Solutions Usa, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DECA (Defense Commissary Agency)	$96,029,809	3.8%	Rank history: #11 in FY2021, #8 in FY2022, #24 in FY2024 and #30 in FY2025; up 2 since FY2022.
7	MLU Services, LLC Top agencies DHS (Department of Homeland Security)	$69,241,696	2.7%	Rank history: #51 in FY2021, #5 in FY2022, #29 in FY2024 and #7 in FY2025; down 2 since FY2022.
8	Prism Maritime, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$65,330,072	2.6%	Rank history: #21 in FY2021, #28 in FY2022, #5 in FY2024 and #6 in FY2025; up 20 since FY2022.
9	Wells Global, LLC Top agencies DOT (Department of Transportation)	$59,814,046	2.3%	Rank history: #24 in FY2021, #18 in FY2022, #20 in FY2024 and #12 in FY2025; up 9 since FY2022.
10	VT Milcom Inc. Top agencies Navy (Department of the Navy)	$59,339,511	2.3%	Rank history: #12 in FY2021, #12 in FY2022, #13 in FY2024 and #14 in FY2025; up 2 since FY2022.
11	Leidos Holdings, Inc. 3 awardees, including Leidos, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$56,500,284	2.2%	Rank history: #30 in FY2021, #10 in FY2022, #11 in FY2024 and #9 in FY2025; down 1 since FY2022.
12	Serco Inc Top agencies Navy (Department of the Navy) Army (Department of the Army)	$50,282,666	2.0%	Rank history: not on the FY2021–FY2022 lists, #6 in FY2024 and #8 in FY2025; new.
13	WSP USA Solutions Inc. Top agencies Army (Department of the Army)	$49,439,479	1.9%	Rank history: #10 in FY2021, #11 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
14	Spectrum Solutions Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$39,934,934	1.6%	Rank history: #28 in FY2021, #17 in FY2022, #8 in FY2024 and #13 in FY2025; up 3 since FY2022.
15	Huntington Ingalls Industries, Inc. Through HII Fleet Support Group LLC Top agencies Navy (Department of the Navy)	$37,970,736	1.5%	Rank history: #16 in FY2021, #13 in FY2022, #23 in FY2024 and #31 in FY2025; down 2 since FY2022.
16	Schneider Electric Buildings Americas Inc. 2 awardees, including Schneider Electric Federal, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$35,102,376	1.4%	Rank history: #45 in FY2021, #47 in FY2022 and not on the FY2024–FY2025 lists; up 31 since FY2022.
17	Corbett Technology Solutions Inc. 3 awardees, including Integrated Security Solutions Inc., Pavion Corp. and Star Asset Security LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) DOJ (Department of Justice)	$31,198,977	1.2%	Rank history: #29 in FY2021, #23 in FY2022, #43 in FY2024 and not on the FY2025 list; up 6 since FY2022.
18	Cusa Consulting LLC Top agencies DOT (Department of Transportation)	$29,813,953	1.2%	Rank history: #43 in FY2021, #30 in FY2022, #17 in FY2024 and #41 in FY2025; up 12 since FY2022.
19	Securityhunter, Inc. Top agencies SSA (Social Security Administration) Army (Department of the Army)	$28,990,556	1.1%	Rank history: #27 in FY2021, #19 in FY2022, #22 in FY2024 and #10 in FY2025; unchanged since FY2022.
20	Serco North America (Holdings) Inc 2 awardees, including Serco Inc. Top agencies Navy (Department of the Navy)	$26,390,577	1.0%	Rank history: #3 in FY2021, #9 in FY2022 and not on the FY2024–FY2025 lists; down 11 since FY2022.
21	Parsons Corporation 4 awardees, including Ptsi Managed Services Inc., Parsons Government Services Inc. and Williams Electric Co Inc. Top agencies Army (Department of the Army)	$24,376,589	1.0%	Rank history: #18 in FY2021, #15 in FY2022, #34 in FY2024 and #21 in FY2025; down 6 since FY2022.
22	Dewberry Design-Builders Inc. Top agencies Army (Department of the Army)	$22,456,783	0.9%	Rank history: #80 in FY2021, #27 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
23	Signet Technologies Inc. 2 awardees, including Convergint Technologies LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) DODEA (Department of Defense Education Activity)	$20,933,299	0.8%	Rank history: #42 in FY2021, #20 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
24	Miquin, L.L.C. Top agencies Navy (Department of the Navy)	$20,316,446	0.8%	Rank history: not on the FY2021 list, #26 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
25	Lockheed Martin Corporation 4 awardees, including Lockheed Martin Overseas, LLC Top agencies MDA (DOD Missile Defense Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$19,632,590	0.8%	Rank history: #6 in FY2021, not on the FY2022 list, #40 in FY2024 and not on the FY2025 list; returned.
26	Krueger International, Inc. 2 awardees, including Spacesaver Storage Systems Inc. Top agencies DOJ (Department of Justice) USSOCOM (United States Special Operations Command) DOI (Department of the Interior)	$18,494,626	0.7%	Rank history: #23 in FY2021, #16 in FY2022, #25 in FY2024 and #27 in FY2025; down 10 since FY2022.
27	Koontz Electric Company, Incorporated Top agencies Army (Department of the Army)	$17,547,744	0.7%	Rank history: #70 in FY2021, not on the FY2022 list, not on the FY2024 list and #43 in FY2025; returned.
28	Oceanetics Inc. Top agencies Navy (Department of the Navy)	$17,319,601	0.7%	Rank history: not on the FY2021–FY2022 lists, #7 in FY2024 and #16 in FY2025; new.
29	Chinook Systems, Inc. 2 awardees Top agencies Army (Department of the Army) MDA (DOD Missile Defense Agency) Navy (Department of the Navy)	$16,675,694	0.7%	Rank history: not on the FY2021 list, #24 in FY2022 and not on the FY2024–FY2025 lists; down 5 since FY2022.
30	Newbegin Enterprises Inc. Top agencies USAF (Department of the Air Force)	$16,576,600	0.6%	Rank history: not on the FY2021–FY2022 lists, #28 in FY2024 and #23 in FY2025; new.
31	Advanced Technology Construction Corporation Top agencies Navy (Department of the Navy)	$12,947,363	0.5%	Rank history: not on the FY2021–FY2022 lists, #66 in FY2024 and not on the FY2025 list; new.
32	Asrc Prime Constructors, LLC Top agencies Army (Department of the Army)	$12,934,400	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
33	Disaster Solutions Alliance, LLC Top agencies DHS (Department of Homeland Security)	$12,411,190	0.5%	Rank history: #48 in FY2021, #7 in FY2022, not on the FY2024 list and #68 in FY2025; down 26 since FY2022.
34	Chickasaw Strategic Pointe, LLC Top agencies DOT (Department of Transportation)	$11,692,020	0.5%	Rank history: not on the FY2021 list, #37 in FY2022, #51 in FY2024 and #75 in FY2025; up 3 since FY2022.
35	Kbr, Inc. 2 awardees, including KBR Wyle Services, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) DOJ (Department of Justice)	$11,349,707	0.4%	Rank history: #25 in FY2021, #22 in FY2022 and not on the FY2024–FY2025 lists; down 13 since FY2022.
36	Evergreen Fire Alarms LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$9,959,533	0.4%	Rank history: not on the FY2021 list, #64 in FY2022, not on the FY2024 list and #76 in FY2025; up 28 since FY2022.
37	Johnson Controls Security Solutions LLC 6 awardees, including Johnson Controls Building Automation Systems, LLC, Johnson Controls Government Systems, LLC and Johnson Controls Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security) Treasury (Department of the Treasury)	$9,866,580	0.4%	Rank history: #2 in FY2021, #3 in FY2022 and not on the FY2024–FY2025 lists; down 34 since FY2022.
38	Veolia Water North America-West LLC 2 awardees, including Veolia Water West Operating Services Inc. and Veolia Water Technologies, Inc. Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico) Navy (Department of the Navy)	$9,784,062	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
39	Epsilon Systems Solutions Inc. 2 awardees Top agencies Navy (Department of the Navy)	$9,767,971	0.4%	Rank history: #54 in FY2021, #48 in FY2022, #60 in FY2024 and #71 in FY2025; up 9 since FY2022.
40	Sentinel Power Services, LLC Top agencies DOT (Department of Transportation)	$9,364,105	0.4%	Rank history: #60 in FY2021, #25 in FY2022, #31 in FY2024 and #32 in FY2025; down 15 since FY2022.
41	TM3 Solutions, Inc. Top agencies DISA (Defense Information Systems Agency) WHS (DOD Washington Headquarters Service)	$9,020,134	0.4%	Rank history: #33 in FY2021, #33 in FY2022 and not on the FY2024–FY2025 lists; down 8 since FY2022.
42	C.n.s. Communications, LLC Top agencies DOT (Department of Transportation)	$8,933,019	0.4%	Rank history: not on the FY2021 list, #36 in FY2022, #38 in FY2024 and #92 in FY2025; down 6 since FY2022.
43	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies Navy (Department of the Navy)	$8,808,236	0.3%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #20 in FY2025; new.
44	The Tatitlek Corporation Through Tatitlek Federal Services LLC Top agencies DHS (Department of Homeland Security)	$8,701,523	0.3%	Rank history: not on the FY2021 list, #57 in FY2022 and not on the FY2024–FY2025 lists; up 13 since FY2022.
45	Jacobs Engineering Group Inc. Through Ch2M Facility Support Services, LLC Top agencies DHS (Department of Homeland Security)	$8,256,383	0.3%	Rank history: #9 in FY2021, #31 in FY2022 and not on the FY2024–FY2025 lists; down 14 since FY2022.
46	Arcus Group, LLC Top agencies DHS (Department of Homeland Security)	$8,229,681	0.3%	Rank history: not on the FY2021–FY2022 lists, #19 in FY2024 and #11 in FY2025; up 97 since FY2022.
47	Alamo-Evergreen JV LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) DHA (Defense Health Agency)	$7,988,998	0.3%	Rank history: not on the FY2021–FY2022 lists, #12 in FY2024 and #62 in FY2025; new.
48	Urban Electric, Inc. Top agencies DOT (Department of Transportation)	$7,771,160	0.3%	Rank history: not on the FY2021 list, #38 in FY2022, #56 in FY2024 and #96 in FY2025; down 10 since FY2022.
49	Defense Systems and Solutions Top agencies Army (Department of the Army)	$7,392,580	0.3%	Rank history: not on the FY2021 list, #14 in FY2022, not on the FY2024 list and #35 in FY2025; down 35 since FY2022.
50	General Dynamics Corporation 5 awardees, including General Dynamics Information Technology, Inc., General Dynamics Mission Systems, Inc. and Electric Boat Corporation Top agencies Navy (Department of the Navy) DOS (Department of State)	$7,286,610	0.3%	Rank history: not on the FY2021 list, #52 in FY2022, #52 in FY2024 and not on the FY2025 list; up 2 since FY2022.
51	Afognak Native Corporation 3 awardees, including Red Peak Technical Services LLC and Alutiiq Information Management, LLC Top agencies Navy (Department of the Navy)	$7,199,290	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 96 since FY2022.
52	Rohde & Schwarz GMBH & Co. KG Through Rohde & Schwarz Usa, Inc. Top agencies DHS (Department of Homeland Security)	$7,118,100	0.3%	Rank history: not on the FY2021–FY2022 lists, #83 in FY2024 and not on the FY2025 list; new.
53	Infotec Systems Corp Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$7,074,928	0.3%	Rank history: #65 in FY2021, #61 in FY2022 and not on the FY2024–FY2025 lists; up 8 since FY2022.
54	Cherokee Nation Mechanical LLC Top agencies Commerce (Department of Commerce)	$6,790,666	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
55	Barry Williams Electric Inc. Top agencies DOT (Department of Transportation)	$6,713,418	0.3%	Rank history: not on the FY2021 list, #71 in FY2022 and not on the FY2024–FY2025 lists; up 16 since FY2022.
56	BPD Engineering, LLC Top agencies DOJ (Department of Justice)	$6,345,157	0.2%	Rank history: #47 in FY2021, #32 in FY2022, #89 in FY2024 and #74 in FY2025; down 24 since FY2022.
57	Englobal Corporation Through Englobal Government Services Inc. Top agencies DLA (Defense Logistics Agency)	$6,302,288	0.2%	Rank history: not on the FY2021 list, #87 in FY2022 and not on the FY2024–FY2025 lists; up 30 since FY2022.
58	D7, LLC Top agencies USAF (Department of the Air Force)	$6,291,395	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
59	RTX Corporation 6 awardees, including Raytheon Company and Carrier Corporation Top agencies Navy (Department of the Navy) DOJ (Department of Justice)	$6,216,278	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 316 since FY2022.
60	Vectrus Systems Corporation Through Advantor Systems II LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) MDA (DOD Missile Defense Agency)	$5,933,917	0.2%	Rank history: #53 in FY2021, #40 in FY2022 and not on the FY2024–FY2025 lists; down 20 since FY2022.
61	Government of Canada Through Canadian Commercial Corporation Top agencies USAF (Department of the Air Force)	$5,848,184	0.2%	Rank history: #39 in FY2021, #39 in FY2022 and not on the FY2024–FY2025 lists; down 22 since FY2022.
62	Argus CJW JV 3 LLC Top agencies Navy (Department of the Navy)	$5,799,318	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 93 since FY2022.
63	Per Aarsleff A/S Top agencies USAF (Department of the Air Force)	$5,549,367	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
64	American Engineering Corporation Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$5,509,625	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 58 since FY2022.
65	Aptim Federal Services LLC Top agencies DHS (Department of Homeland Security)	$5,308,000	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
66	Sierra Nevada Company, LLC Top agencies Navy (Department of the Navy)	$5,257,950	0.2%	Rank history: #63 in FY2021, #45 in FY2022, #53 in FY2024 and not on the FY2025 list; down 21 since FY2022.
67	Motorola Inc Through Motorola Solutions, Inc. Top agencies DOI (Department of the Interior) DHS (Department of Homeland Security)	$5,086,716	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
68	Low Voltage Wiring Ltd Top agencies Army (Department of the Army) DODEA (Department of Defense Education Activity) DISA (Defense Information Systems Agency)	$5,064,955	0.2%	Rank history: #93 in FY2021, #94 in FY2022, #75 in FY2024 and #65 in FY2025; up 26 since FY2022.
69	Quad J Inc. Top agencies DOT (Department of Transportation)	$5,029,924	0.2%	Rank history: #82 in FY2021, #42 in FY2022, #30 in FY2024 and #61 in FY2025; down 27 since FY2022.
70	Kunj Construction Corporation Top agencies Navy (Department of the Navy)	$4,877,836	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
71	Davies Office Refurbishing, Inc. Top agencies Treasury (Department of the Treasury)	$4,753,851	0.2%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2024 and not on the FY2025 list; new.
72	AES Electrical, LLC Top agencies National Gallery of Art	$4,498,378	0.2%	Rank history: not on the FY2021 list, #91 in FY2022 and not on the FY2024–FY2025 lists; up 19 since FY2022.
73	Agate Construction Inc. Through Agate Steel Inc. Top agencies USAF (Department of the Air Force)	$4,465,149	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
74	Axe Engineering Inc. Top agencies USAF (Department of the Air Force)	$4,398,759	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
75	Acts Meltech JV2 LLC Top agencies Navy (Department of the Navy)	$4,274,346	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
76	Prime Mechanical of Wisconsin LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USDA (Department of Agriculture)	$4,174,815	0.2%	Rank history: #89 in FY2021, not on the FY2022 list, not on the FY2024 list and #88 in FY2025; up 36 since FY2022.
77	Continental Tide Defense Systems, Inc. Top agencies Navy (Department of the Navy)	$4,026,480	0.2%	Rank history: #88 in FY2021, not on the FY2022 list, #82 in FY2024 and not on the FY2025 list; up 28 since FY2022.
78	SEI Group Inc Top agencies Army (Department of the Army) Navy (Department of the Navy)	$3,944,594	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
79	CMP Commercial Construction Inc. Top agencies DOT (Department of Transportation)	$3,917,516	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
80	Calista Corp Through Yulista Support Services LLC Top agencies DHS (Department of Homeland Security)	$3,891,835	0.2%	Rank history: #58 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 28 since FY2022.
81	Price Modern LLC Top agencies DHS (Department of Homeland Security) NASA (National Aeronautics and Space Administration) NRC (Nuclear Regulatory Commission)	$3,884,980	0.2%	Rank history: not on the FY2021–FY2022 lists, #73 in FY2024 and #67 in FY2025; up 148 since FY2022.
82	Electripro, Inc. Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$3,719,488	0.1%	Rank history: not on the FY2021 list, #54 in FY2022, not on the FY2024 list and #85 in FY2025; down 28 since FY2022.
83	Selecttech Services Corporation Top agencies USAF (Department of the Air Force)	$3,517,172	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
84	Tj&B Air Conditioning and Electric, LLC Top agencies DOT (Department of Transportation)	$3,281,666	0.1%	Rank history: not on the FY2021–FY2022 lists, #32 in FY2024 and not on the FY2025 list; up 85 since FY2022.
85	Four Points Technology, L.L.C. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) HHS (Department of Health and Human Services)	$3,272,414	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 33 since FY2022.
86	Accelint Global Inc. Top agencies Navy (Department of the Navy)	$3,171,664	0.1%	Rank history: #56 in FY2021, #62 in FY2022, #68 in FY2024 and not on the FY2025 list; down 24 since FY2022.
87	Delta Run Security JV2 LLC Top agencies DHS (Department of Homeland Security) Treasury (Department of the Treasury) USDA (Department of Agriculture)	$3,102,832	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
88	Promethean General Contractors, LLC Top agencies Army (Department of the Army)	$3,097,089	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
89	Ready Services, LLC Top agencies USAF (Department of the Air Force)	$3,086,248	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 250 since FY2022.
90	Methuen Construction Co Inc Top agencies Navy (Department of the Navy)	$3,020,704	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
91	CACI International Inc. 2 awardees, including Caci, Inc. - Federal and Caci Nss, LLC Top agencies Navy (Department of the Navy) USDA (Department of Agriculture)	$3,020,535	0.1%	Rank history: not on the FY2021–FY2022 lists, #39 in FY2024 and #28 in FY2025; new.
92	Red Point Construction LLC Top agencies Army (Department of the Army)	$2,987,746	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
93	Aleto, Inc. Top agencies Army (Department of the Army) DOT (Department of Transportation)	$2,985,591	0.1%	Rank history: not on the FY2021–FY2022 lists, #48 in FY2024 and #54 in FY2025; new.
94	Heritage Interiors LLC Top agencies USDA (Department of Agriculture) DOE (Department of Energy) HHS (Department of Health and Human Services)	$2,975,317	0.1%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2024 and #58 in FY2025; new.
95	Garco Wemco A Joint Venture Top agencies Army (Department of the Army)	$2,943,788	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 178 since FY2022.
96	Action Technology Services LLC Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$2,935,933	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
97	Purvis Systems Inc Top agencies Navy (Department of the Navy)	$2,913,600	0.1%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2024 and #82 in FY2025; new.
98	Air Force Academy Athletic Corporation Top agencies USAF (Department of the Air Force)	$2,879,157	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
99	Gulf Remediation, Inc. Top agencies Army (Department of the Army)	$2,758,400	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
100	22Nd Century Technologies, Inc. Top agencies OSD (Office of the Secretary of Defense)	$2,723,863	0.1%	Rank history: #76 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 84 since FY2022.

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100 of 1,818 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	$1,007,870,148	Johnson Controls Industries
N063 Installation of Equipment: Alarm, Signal, and Security Detection Systems	$171,115,671	M.c. Dean, Inc.
N045 Installation of Equipment: Plumbing, Heating, and Waste Disposal Equipment	$138,549,246	MLU Services, LLC
N061 Installation of Equipment: Electric Wire, and Power and Distribution Equipment	$83,516,138	Miquin, L.L.C.
N099 Installation of Equipment: Miscellaneous	$79,861,967	Leidos Holdings, Inc.
N071 Installation of Equipment: Furniture	$65,755,442	Krueger International, Inc.
N012 Installation of Equipment: Fire Control Equipment	$48,876,890	Northrop Grumman Corporation
N041 Installation of Equipment: Refrigeration, Air Conditioning, and Air Circulating Equipment	$28,919,635	TLI Construction, Inc.
N025 Installation of Equipment: Vehicular Equipment Components	$20,323,677	Newbegin Enterprises Inc.
N046 Installation of Equipment: Water Purification and Sewage Treatment Equipment	$15,813,931	Veolia Water North America-West LLC
N066 Installation of Equipment: Instruments and Laboratory Equipment	$14,653,678	Prism Maritime, Inc.
N054 Installation of Equipment: Prefabricated Structures and Scaffolding	$14,031,892	BPD Engineering, LLC
N065 Installation of Equipment: Medical, Dental, and Veterinary Equipment and Supplies	$9,362,181	Home Care Equipment Inc.
N072 Installation of Equipment: Household and Commercial Furnishings and Appliances	$8,764,776	Ashland Industrial Services, LLC
N056 Installation of Equipment: Construction and Building Materials	$8,137,051	Yerba Buena Engineering & Construction, Inc.
N062 Installation of Equipment: Lighting Fixtures and Lamps	$6,331,780	Air Force Academy Athletic Corporation
N043 Installation of Equipment: Pumps and Compressors	$2,125,853	Heffler Contracting Group
N049 Installation of Equipment: Maintenance and Repair Shop Equipment	$1,637,988	Exelon 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 $2.55 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.
Fiscal year 2023 ran Oct 1, 2022 – Sep 30, 2023. 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 FY2022. "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 FY2022 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 FY2023?

1. Northrop Grumman Corporation ($220M), 2. Johnson Controls Industries ($153M), 3. M.c. Dean, Inc. ($114M), 4. The Boeing Company ($110M), 5. BAE Systems PLC ($96.4M), 6. Siemens Aktiengesellschaft ($96M), 7. MLU Services, LLC ($69.2M), 8. Prism Maritime, Inc. ($65.3M), 9. Wells Global, LLC ($59.8M), 10. VT Milcom Inc. ($59.3M).

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