Top 100 Contractors in PSC L0: Technical Representative Services, FY2025

Name: Top 100 Contractors in PSC L0: Technical Representative Services, FY2025
Creator: GovTribe

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

The top 10 won 71% of FY2025 PSC L0 contract dollars

Contract obligations: $2,830,462,222 Net of deobligations, by contracts coded PSC L0 or a code under it
Contractors: 431 Parent companies with an obligation
Largest contractor: BAE Systems $551 million, 18.7% 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	BAE Systems 3 awardees, including BAE Systems Technology Solutions & Services Inc. and BAE Systems Land & Armaments L.P. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$551,428,471	18.7%	Rank history: #3 in FY2021, #2 in FY2022, #2 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	RTX Corporation 10 awardees, including Raytheon Company, Goodrich Corporation and Vertex Modernization and Sustainment LLC Top agencies MDA (DOD Missile Defense Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$408,495,302	13.8%	Rank history: #4 in FY2021, #3 in FY2022, #4 in FY2023 and #9 in FY2024; up 7 since FY2024.
3	Northrop Grumman Corporation 9 awardees, including Northrop Grumman Systems Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$311,947,779	10.6%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and #3 in FY2024; unchanged since FY2024.
4	Amentum Holdings, Inc. 2 awardees, including Amentum Services, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$190,746,196	6.5%	Rank history: not on the FY2021–FY2023 lists and #32 in FY2024; up 28 since FY2024.
5	The Boeing Company 8 awardees, including Insitu, Inc. and Boeing Aerospace Operations, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$169,760,896	5.8%	Rank history: #2 in FY2021, #4 in FY2022, #5 in FY2023 and #4 in FY2024; down 1 since FY2024.
6	Lockheed Martin Corporation 11 awardees, including Sikorsky Aircraft Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$160,068,626	5.4%	Rank history: #7 in FY2021, #5 in FY2022, #7 in FY2023 and #5 in FY2024; down 1 since FY2024.
7	Crowley Government Services, Inc. Top agencies DOT (Department of Transportation)	$101,861,599	3.5%	Rank history: not on the FY2021 list, #13 in FY2022, #3 in FY2023 and #2 in FY2024; down 5 since FY2024.
8	Science Applications International Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$80,950,291	2.7%	Rank history: #54 in FY2021, #52 in FY2022, #15 in FY2023 and #14 in FY2024; up 6 since FY2024.
9	L3Harris Technologies, Inc. 5 awardees, including L3Harris Technologies Integrated Systems L.P. and L3Harris Maritime Services Inc. Top agencies DCMA (Defense Contract Management Agency) USAF (Department of the Air Force) Army (Department of the Army)	$77,452,499	2.6%	Rank history: #37 in FY2021, #36 in FY2022, #44 in FY2023 and #8 in FY2024; down 1 since FY2024.
10	Scientific Research Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$49,183,879	1.7%	Rank history: #9 in FY2021, #11 in FY2022, #12 in FY2023 and #18 in FY2024; up 8 since FY2024.
11	Textron Inc. 2 awardees, including Textron Systems Corporation and Bell Textron Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$47,406,852	1.6%	Rank history: #6 in FY2021, #6 in FY2022, #8 in FY2023 and #11 in FY2024; unchanged since FY2024.
12	Northrop Grumman Systems Corporation Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$46,600,060	1.6%	Rank history: #13 in FY2021, not on the FY2022–FY2023 lists and #10 in FY2024; down 2 since FY2024.
13	Raytheon Company Top agencies MDA (DOD Missile Defense Agency)	$46,227,674	1.6%	Rank history: not on the FY2021–FY2023 lists and #7 in FY2024; down 6 since FY2024.
14	Technology Service Corp Top agencies USSOCOM (United States Special Operations Command) USAF (Department of the Air Force)	$31,895,405	1.1%	Rank history: #33 in FY2021, #10 in FY2022, #10 in FY2023 and #13 in FY2024; down 1 since FY2024.
15	General Dynamics Corporation 8 awardees, including General Dynamics Mission Systems, Inc. and Electric Boat Corporation Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$31,029,448	1.1%	Rank history: #15 in FY2021, #15 in FY2022, #11 in FY2023 and #16 in FY2024; up 1 since FY2024.
16	KBR Wyle Services LLC 2 awardees Top agencies DOI (Department of the Interior) MDA (DOD Missile Defense Agency)	$30,535,316	1.0%	Rank history: not on the FY2021–FY2023 lists and #15 in FY2024; down 1 since FY2024.
17	General Atomics Aeronautical Systems, Inc. Top agencies USAF (Department of the Air Force) USSOCOM (United States Special Operations Command)	$25,908,177	0.9%	Rank history: not on the FY2021–FY2023 lists and #22 in FY2024; up 5 since FY2024.
18	Serco Inc 2 awardees Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$25,224,884	0.9%	Rank history: not on the FY2021–FY2022 lists, #48 in FY2023 and #17 in FY2024; down 1 since FY2024.
19	Sierra Nevada Company, LLC 2 awardees Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$23,203,437	0.8%	Rank history: not on the FY2021–FY2024 lists; new.
20	Booz Allen Hamilton Holding Corporation 2 awardees, including Booz Allen Hamilton Inc. and Ultra Electronics Advanced Tactical Systems Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$22,392,953	0.8%	Rank history: not on the FY2021 list, #49 in FY2022, #22 in FY2023 and #30 in FY2024; up 10 since FY2024.
21	Predicate Logic Inc. Top agencies Navy (Department of the Navy)	$17,775,599	0.6%	Rank history: not on the FY2021 list, #18 in FY2022, #16 in FY2023 and #19 in FY2024; down 2 since FY2024.
22	Toyon Research Corporation Top agencies Navy (Department of the Navy)	$17,562,000	0.6%	Rank history: not on the FY2021–FY2024 lists; new.
23	Halvik LLC Top agencies Army (Department of the Army)	$16,080,130	0.5%	Rank history: #19 in FY2021, #19 in FY2022, #17 in FY2023 and #21 in FY2024; down 2 since FY2024.
24	Digitized Schematic Solutions LLC Top agencies USAF (Department of the Air Force)	$15,157,841	0.5%	Rank history: not on the FY2021–FY2023 lists and #97 in FY2024; up 73 since FY2024.
25	Argentech Solutions, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$13,310,620	0.5%	Rank history: #92 in FY2021, not on the FY2022–FY2023 lists and #51 in FY2024; up 26 since FY2024.
26	Mele Associates Inc. Top agencies DOE (Department of Energy)	$12,629,333	0.4%	Rank history: not on the FY2021–FY2022 lists, #20 in FY2023 and #24 in FY2024; down 2 since FY2024.
27	Caterpillar Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security)	$12,584,731	0.4%	Rank history: not on the FY2021–FY2023 lists and #20 in FY2024; down 7 since FY2024.
28	Centurum Information Technology Inc. Top agencies Navy (Department of the Navy)	$12,353,832	0.4%	Rank history: not on the FY2021–FY2023 lists and #36 in FY2024; up 8 since FY2024.
29	W R Systems Ltd. Top agencies Navy (Department of the Navy)	$11,425,444	0.4%	Rank history: not on the FY2021 list, #94 in FY2022, #94 in FY2023 and not on the FY2024 list; up 84 since FY2024.
30	General Electric Company 3 awardees, including GE Aviation Systems Limited Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$10,644,767	0.4%	Rank history: #17 in FY2021, #29 in FY2022, #18 in FY2023 and #23 in FY2024; down 7 since FY2024.
31	Chickasaw Alliance Group, LLC Top agencies Navy (Department of the Navy)	$10,372,826	0.4%	Rank history: not on the FY2021–FY2023 lists and #53 in FY2024; up 22 since FY2024.
32	Fairwinds Technologies LLC Top agencies Navy (Department of the Navy)	$10,277,090	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
33	Synectic Solutions, Inc. Top agencies Navy (Department of the Navy)	$9,850,881	0.3%	Rank history: #25 in FY2021, #26 in FY2022, #30 in FY2023 and #37 in FY2024; up 4 since FY2024.
34	Merlin Labs Inc. Top agencies USAF (Department of the Air Force)	$9,218,813	0.3%	Rank history: not on the FY2021–FY2023 lists and #38 in FY2024; up 4 since FY2024.
35	Mhsystems Inc. Top agencies USAF (Department of the Air Force)	$8,989,578	0.3%	Rank history: not on the FY2021 list, #37 in FY2022, #29 in FY2023 and #29 in FY2024; down 6 since FY2024.
36	Valiant Global Defense Services Inc. Top agencies DTRA (Defense Threat Reduction Agency) Navy (Department of the Navy)	$8,479,593	0.3%	Rank history: not on the FY2021–FY2023 lists and #56 in FY2024; up 20 since FY2024.
37	Great Eastern Group, Inc. Top agencies Navy (Department of the Navy)	$8,133,926	0.3%	Rank history: #22 in FY2021, #22 in FY2022, #23 in FY2023 and #28 in FY2024; down 9 since FY2024.
38	Affordable Engineering Services, Inc. Top agencies Navy (Department of the Navy)	$7,558,843	0.3%	Rank history: #78 in FY2021, not on the FY2022 list, #96 in FY2023 and #69 in FY2024; up 31 since FY2024.
39	JRC Integrated Systems, LLC Top agencies Navy (Department of the Navy)	$7,145,604	0.2%	Rank history: #44 in FY2021, #38 in FY2022, #35 in FY2023 and #46 in FY2024; up 7 since FY2024.
40	Greenlight Group JV, LLC Top agencies Navy (Department of the Navy)	$7,010,806	0.2%	Rank history: not on the FY2021–FY2023 lists and #40 in FY2024; unchanged since FY2024.
41	Hatalom Corp Top agencies Navy (Department of the Navy)	$6,958,180	0.2%	Rank history: #32 in FY2021, #24 in FY2022, #27 in FY2023 and #35 in FY2024; down 6 since FY2024.
42	Johnson Controls Navy Systems, LLC Top agencies Navy (Department of the Navy)	$6,322,996	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
43	Evotech, LLC Top agencies DOT (Department of Transportation)	$6,316,928	0.2%	Rank history: #60 in FY2021, #39 in FY2022, #38 in FY2023 and #39 in FY2024; down 4 since FY2024.
44	Analex Corporation Top agencies Navy (Department of the Navy)	$5,998,130	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
45	Tunica-Biloxi J Star, LLC Top agencies Army (Department of the Army)	$5,609,975	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
46	Cummins Inc. Top agencies Army (Department of the Army)	$5,477,232	0.2%	Rank history: not on the FY2021–FY2023 lists and #50 in FY2024; up 4 since FY2024.
47	Solution One Industries, Inc. Top agencies Army (Department of the Army)	$5,354,023	0.2%	Rank history: not on the FY2021–FY2023 lists and #90 in FY2024; up 43 since FY2024.
48	Trident Research, LLC Top agencies Navy (Department of the Navy)	$5,150,189	0.2%	Rank history: #42 in FY2021, #92 in FY2022, #25 in FY2023 and #55 in FY2024; up 7 since FY2024.
49	Shoulder 2 Shoulder Inc. Top agencies Army (Department of the Army)	$5,099,366	0.2%	Rank history: #29 in FY2021, #42 in FY2022, #36 in FY2023 and #43 in FY2024; down 6 since FY2024.
50	American Systems Corporation Top agencies Navy (Department of the Navy)	$5,076,432	0.2%	Rank history: #43 in FY2021, #40 in FY2022, #39 in FY2023 and #49 in FY2024; down 1 since FY2024.
51	Innovative Consulting & Management Services, LLC Top agencies DHS (Department of Homeland Security)	$5,061,447	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
52	Advanced Internet Marketing Inc. Top agencies Navy (Department of the Navy)	$5,052,284	0.2%	Rank history: not on the FY2021–FY2023 lists and #98 in FY2024; up 46 since FY2024.
53	Cssi Inc. Top agencies Navy (Department of the Navy)	$4,811,817	0.2%	Rank history: not on the FY2021–FY2022 lists, #34 in FY2023 and #47 in FY2024; down 6 since FY2024.
54	The Informatics Applications Group Inc. Top agencies Navy (Department of the Navy)	$4,711,844	0.2%	Rank history: #24 in FY2021, #25 in FY2022, #45 in FY2023 and not on the FY2024 list; returned.
55	Kratos Defense & Security Solutions Inc. Through Micro Systems, Inc. Top agencies Army (Department of the Army)	$4,207,243	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
56	Mark G. Miller, Inc. Top agencies USAF (Department of the Air Force)	$3,384,778	0.1%	Rank history: not on the FY2021 list, #95 in FY2022, #63 in FY2023 and #66 in FY2024; up 10 since FY2024.
57	Steampunk, Inc. Top agencies USAID (US Agency for International Development)	$3,342,809	0.1%	Rank history: not on the FY2021–FY2023 lists and #31 in FY2024; down 26 since FY2024.
58	Life Cycle Engineering Inc. Top agencies Navy (Department of the Navy)	$2,873,244	0.1%	Rank history: #56 in FY2021, #50 in FY2022, #57 in FY2023 and #59 in FY2024; up 1 since FY2024.
59	Smart Munitions Expert Solutions, Inc. Top agencies USAF (Department of the Air Force)	$2,703,497	0.1%	Rank history: not on the FY2021–FY2023 lists and #54 in FY2024; down 5 since FY2024.
60	Didlake Inc. Top agencies DOE (Department of Energy)	$2,530,686	0.1%	Rank history: #57 in FY2021, #54 in FY2022, #46 in FY2023 and #64 in FY2024; up 4 since FY2024.
61	Digital Air Control, Inc. Top agencies VA (Department of Veterans Affairs)	$2,396,510	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
62	Connected Alliances LLC Top agencies USAF (Department of the Air Force)	$2,349,999	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
63	Airbus Helicopters, Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$2,338,179	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
64	P&G Memorials LLC Top agencies VA (Department of Veterans Affairs)	$2,097,139	0.1%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2023 and #65 in FY2024; up 1 since FY2024.
65	Valkyrie Enterprises, LLC Top agencies Navy (Department of the Navy)	$2,091,306	0.1%	Rank history: #61 in FY2021, #79 in FY2022, #60 in FY2023 and #62 in FY2024; down 3 since FY2024.
66	Supply Chain Management Inc.1.Com Top agencies Navy (Department of the Navy)	$1,952,672	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
67	Altus Technical Solutions LLC Top agencies Navy (Department of the Navy)	$1,864,964	0.1%	Rank history: not on the FY2021–FY2023 lists and #44 in FY2024; down 23 since FY2024.
68	Pinter Memorials Inc. Top agencies VA (Department of Veterans Affairs)	$1,824,256	0.1%	Rank history: not on the FY2021 list, #72 in FY2022, #66 in FY2023 and not on the FY2024 list; returned.
69	CRL Technologies, Inc. Top agencies Navy (Department of the Navy)	$1,822,102	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
70	Deloitte Through Deloitte Consulting LLP Top agencies HHS (Department of Health and Human Services)	$1,646,687	0.1%	Rank history: not on the FY2021–FY2023 lists and #57 in FY2024; down 13 since FY2024.
71	Elbit Systems of America LLC Through Elbitamerica, Inc. Top agencies Army (Department of the Army)	$1,641,397	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
72	First Division Consulting Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$1,636,471	0.1%	Rank history: #98 in FY2021, #83 in FY2022, not on the FY2023 list and #73 in FY2024; up 1 since FY2024.
73	Huntington Ingalls Industries, Inc. Through HII Fleet Support Group LLC Top agencies Navy (Department of the Navy)	$1,609,738	0.1%	Rank history: #65 in FY2021 and not on the FY2022–FY2024 lists; returned.
74	Dexis Interactive Incorporated Top agencies USAID (US Agency for International Development)	$1,601,579	0.1%	Rank history: not on the FY2021–FY2022 lists, #56 in FY2023 and not on the FY2024 list; returned.
75	Vickers & Nolan Enterprises LLC Top agencies Navy (Department of the Navy)	$1,459,062	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
76	Chugach Technical Solutions LLC Top agencies DHS (Department of Homeland Security)	$1,301,803	<0.1%	Rank history: not on the FY2021–FY2023 lists and #76 in FY2024; unchanged since FY2024.
77	Allegiance Supply Inc. Top agencies Navy (Department of the Navy)	$1,277,711	<0.1%	Rank history: not on the FY2021–FY2023 lists and #93 in FY2024; up 16 since FY2024.
78	Wfel Holdings Limited Through Knds Defence UK Limited Top agencies Army (Department of the Army)	$1,265,292	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
79	Onerain Incorporated Top agencies DOI (Department of the Interior)	$1,263,572	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
80	Culpepper & Associates Security Services Inc. Top agencies Navy (Department of the Navy)	$1,198,517	<0.1%	Rank history: #87 in FY2021, #71 in FY2022, #72 in FY2023 and #80 in FY2024; unchanged since FY2024.
81	Welin Lambie Limited Top agencies DHS (Department of Homeland Security)	$1,188,583	<0.1%	Rank history: #90 in FY2021, #86 in FY2022 and not on the FY2023–FY2024 lists; returned.
82	Skyquest Aviation LLC Top agencies DOJ (Department of Justice)	$1,180,444	<0.1%	Rank history: #45 in FY2021, #45 in FY2022, #55 in FY2023 and not on the FY2024 list; up 27 since FY2024.
83	Imes, Inc. Top agencies Navy (Department of the Navy)	$1,124,076	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
84	Johnsondanforth, Inc. Top agencies VA (Department of Veterans Affairs)	$1,106,983	<0.1%	Rank history: #81 in FY2021, #78 in FY2022, #74 in FY2023 and #83 in FY2024; down 1 since FY2024.
85	Gulf Coast Wilbert Inc. Top agencies VA (Department of Veterans Affairs)	$1,105,710	<0.1%	Rank history: not on the FY2021 list, #90 in FY2022, #71 in FY2023 and #78 in FY2024; down 7 since FY2024.
86	Ghostrock Systems Development LLC Top agencies Navy (Department of the Navy)	$1,064,382	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
87	Tridentis LLC Top agencies Navy (Department of the Navy)	$1,057,385	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
88	Honeywell International Inc. Top agencies Army (Department of the Army)	$1,006,032	<0.1%	Rank history: not on the FY2021–FY2022 lists, #40 in FY2023 and #34 in FY2024; down 54 since FY2024.
89	Ducom Incorporated Top agencies Army (Department of the Army)	$943,649	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
90	Intellectechs Inc. Top agencies Navy (Department of the Navy)	$941,784	<0.1%	Rank history: #100 in FY2021, not on the FY2022 list, #87 in FY2023 and #81 in FY2024; down 9 since FY2024.
91	Strongbridge LLC Top agencies DOT (Department of Transportation)	$860,007	<0.1%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2023 and #77 in FY2024; down 14 since FY2024.
92	Communications Resource Inc. Top agencies HHS (Department of Health and Human Services) DOT (Department of Transportation)	$834,288	<0.1%	Rank history: #83 in FY2021, #98 in FY2022, #85 in FY2023 and #95 in FY2024; up 3 since FY2024.
93	Alutiiq Information Management, LLC Top agencies Navy (Department of the Navy)	$805,284	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
94	WBK Controls Inc. Top agencies USAF (Department of the Air Force)	$778,819	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 7 since FY2024.
95	Loyal Source Government Services LLC Top agencies DHA (Defense Health Agency)	$776,281	<0.1%	Rank history: not on the FY2021–FY2023 lists and #79 in FY2024; down 16 since FY2024.
96	Leonardo S.p.A. 5 awardees, including Engineered Coil Company and DRS Advanced ISR LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$659,395	<0.1%	Rank history: #89 in FY2021 and not on the FY2022–FY2024 lists; returned.
97	Winergy LLC Top agencies VA (Department of Veterans Affairs)	$639,928	<0.1%	Rank history: not on the FY2021–FY2023 lists and #91 in FY2024; down 6 since FY2024.
98	Independent Test Services, Inc. Top agencies Army (Department of the Army)	$639,415	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
99	Contractor Support Services Inc. Top agencies Navy (Department of the Navy)	$594,144	<0.1%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2023 and not on the FY2024 list; up 8 since FY2024.
100	Koam Engineering Systems, Inc. Top agencies Navy (Department of the Navy)	$593,928	<0.1%	Rank history: #88 in FY2021, not on the FY2022 list, #24 in FY2023 and #41 in FY2024; down 59 since FY2024.

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100 of 431 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC L0

Code	Net obligations	Largest contractor
L099 Technical Representation Services: Miscellaneous	$287,507,085	BAE Systems
L059 Technical Representation Services: Electrical and Electronic Equipment Components	$139,704,642	Science Applications International Corporation
L020 Technical Representation Services: Ship and Marine Equipment	$67,651,661	Northrop Grumman Corporation
L063 Technical Representation Services: Alarm, Signal, and Security Detection Systems	$13,235,305	The Informatics Applications Group Inc.
L049 Technical Representation Services: Maintenance and Repair Shop Equipment	$10,476,665	RTX Corporation
L066 Technical Representation Services: Instruments and Laboratory Equipment	$1,576,539	PPD Development LP

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 $2.95 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 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 L0 contractors in FY2025?

1. BAE Systems ($551M), 2. RTX Corporation ($408M), 3. Northrop Grumman Corporation ($312M), 4. Amentum Holdings, Inc. ($191M), 5. The Boeing Company ($170M), 6. Lockheed Martin Corporation ($160M), 7. Crowley Government Services, Inc. ($102M), 8. Science Applications International Corporation ($81M), 9. L3Harris Technologies, Inc. ($77.5M), 10. Scientific Research Corporation ($49.2M).

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