Top 100 Contractors in PSC DD01: IT and Telecom – Service Delivery Support Services: ITSM, Operations Center, Project/PM (Labor), FY2025

Name: Top 100 Contractors in PSC DD01: IT and Telecom – Service Delivery Support Services: ITSM, Operations Center, Project/PM (Labor), FY2025
Creator: GovTribe

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

The top 10 won 48% of FY2025 PSC DD01 contract dollars

Contract obligations: $2,067,837,377 Net of deobligations, by contracts coded PSC DD01
Contractors: 544 Parent companies with an obligation
Largest contractor: General Dynamics Corporation $171 million, 7.9% 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	General Dynamics Corporation 2 awardees, including General Dynamics Information Technology, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Commerce (Department of Commerce)	$171,139,615	7.9%	Rank history: #3 in FY2021, #2 in FY2022, #4 in FY2023 and #2 in FY2024; up 1 since FY2024.
2	Leidos Holdings, Inc. 3 awardees, including Leidos, Inc. Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services) FTC (Federal Trade Commission)	$153,956,272	7.1%	Rank history: #10 in FY2021, #5 in FY2022, #1 in FY2023 and #1 in FY2024; down 1 since FY2024.
3	Science Applications International Corporation 3 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) DOT (Department of Transportation)	$125,839,245	5.8%	Rank history: #35 in FY2021, #20 in FY2022, #5 in FY2023 and #4 in FY2024; up 1 since FY2024.
4	SES Space & Defense Inc. Through Global Enterprise Solutions, Inc. Top agencies USAF (Department of the Air Force) USSOCOM (United States Special Operations Command)	$114,116,448	5.3%	Rank history: not on the FY2021–FY2023 lists and #61 in FY2024; up 57 since FY2024.
5	Booz Allen Hamilton Holding Corporation 3 awardees, including Booz Allen Hamilton Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DHRA (Defense Human Resources Activity)	$108,615,261	5.0%	Rank history: #22 in FY2021, #4 in FY2022, #10 in FY2023 and #9 in FY2024; up 4 since FY2024.
6	Accenture Federal Services LLC Top agencies DOE (Department of Energy) DLA (Defense Logistics Agency)	$104,951,273	4.8%	Rank history: not on the FY2021–FY2023 lists and #5 in FY2024; down 1 since FY2024.
7	At&T Inc. 10 awardees, including At&T Enterprises, LLC, Att Mobility LLC and Directv, LLC Top agencies DHS (Department of Homeland Security) DOT (Department of Transportation) EPA (Environmental Protection Agency)	$90,761,801	4.2%	Rank history: not on the FY2021–FY2023 lists and #6 in FY2024; down 1 since FY2024.
8	Peraton Inc. 2 awardees, including Peraton Enterprise Solutions LLC Top agencies Army (Department of the Army) DHRA (Defense Human Resources Activity) DHA (Defense Health Agency)	$62,475,048	2.9%	Rank history: not on the FY2021–FY2023 lists and #20 in FY2024; up 12 since FY2024.
9	DV United LLC Top agencies DHS (Department of Homeland Security)	$52,099,842	2.4%	Rank history: not on the FY2021–FY2022 lists, #8 in FY2023 and #7 in FY2024; down 2 since FY2024.
10	Mindpoint Group LLC Top agencies DOJ (Department of Justice)	$51,853,935	2.4%	Rank history: not on the FY2021–FY2023 lists and #8 in FY2024; down 2 since FY2024.
11	Adg-Rei Technology Ventures, LLC Top agencies DHS (Department of Homeland Security)	$28,542,445	1.3%	Rank history: not on the FY2021 list, #31 in FY2022, #14 in FY2023 and #11 in FY2024; unchanged since FY2024.
12	Semanticbits LLC Through ICF Incorporated, L.L.C. Top agencies HHS (Department of Health and Human Services) EOP (Executive Office of the President)	$28,383,160	1.3%	Rank history: not on the FY2021–FY2023 lists and #38 in FY2024; up 26 since FY2024.
13	Sparksoft Corporation Top agencies HHS (Department of Health and Human Services)	$27,431,698	1.3%	Rank history: not on the FY2021–FY2024 lists; new.
14	ITC Federal, LLC Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security)	$26,987,612	1.2%	Rank history: not on the FY2021 list, #79 in FY2022, not on the FY2023 list and #13 in FY2024; down 1 since FY2024.
15	Omni Fed LLC Top agencies USAF (Department of the Air Force) DCSA (Defense Counterintelligence and Security Agency)	$22,192,221	1.0%	Rank history: #94 in FY2021, #68 in FY2022, #47 in FY2023 and #49 in FY2024; up 34 since FY2024.
16	Lumen Technologies Government Solutions, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) OPM (Office of Personnel Management)	$22,158,306	1.0%	Rank history: not on the FY2021–FY2024 lists; up 117 since FY2024.
17	C4 Planning Solutions, LLC Top agencies Navy (Department of the Navy)	$21,713,159	1.0%	Rank history: #13 in FY2021, #16 in FY2022, #20 in FY2023 and #17 in FY2024; unchanged since FY2024.
18	CACI International Inc. Through Caci Nss, LLC Top agencies DHS (Department of Homeland Security) NARA (National Archives and Records Administration)	$21,331,102	1.0%	Rank history: #11 in FY2021, #11 in FY2022, #18 in FY2023 and not on the FY2024 list; up 124 since FY2024.
19	Alpha Omega Integration LLC Top agencies DHS (Department of Homeland Security)	$21,295,885	1.0%	Rank history: not on the FY2021–FY2022 lists, #17 in FY2023 and #10 in FY2024; down 9 since FY2024.
20	Creative It Solutions LLC Top agencies DCAA (Defense Contract Audit Agency)	$19,744,593	0.9%	Rank history: #9 in FY2021, #15 in FY2022, #24 in FY2023 and #19 in FY2024; down 1 since FY2024.
21	Electrosoft Services Inc. Top agencies DLA (Defense Logistics Agency) Commerce (Department of Commerce)	$18,014,997	0.8%	Rank history: #86 in FY2021, #54 in FY2022, #30 in FY2023 and #29 in FY2024; up 8 since FY2024.
22	Verizon 4 awardees, including Verizon Business Network Services LLC, Cellco Partnership and Verizon New England Inc. Top agencies Army (Department of the Army) MDA (DOD Missile Defense Agency) DISA (Defense Information Systems Agency)	$17,698,894	0.8%	Rank history: not on the FY2021–FY2023 lists and #73 in FY2024; up 51 since FY2024.
23	Qbase, LLC Top agencies OSD (Office of the Secretary of Defense)	$17,349,675	0.8%	Rank history: #8 in FY2021, #17 in FY2022, #23 in FY2023 and #23 in FY2024; unchanged since FY2024.
24	Iron Vine Security LLC Top agencies Commerce (Department of Commerce)	$17,100,679	0.8%	Rank history: #25 in FY2021, #12 in FY2022, not on the FY2023 list and #14 in FY2024; down 10 since FY2024.
25	Microhealth LLC Top agencies HHS (Department of Health and Human Services)	$16,016,991	0.7%	Rank history: #26 in FY2021, #34 in FY2022, #25 in FY2023 and #18 in FY2024; down 7 since FY2024.
26	Hill Asc, Inc. Top agencies DOJ (Department of Justice) Treasury (Department of the Treasury)	$14,056,522	0.6%	Rank history: not on the FY2021–FY2023 lists and #86 in FY2024; up 60 since FY2024.
27	Galapagos Federal Systems LLC Top agencies Army (Department of the Army)	$13,833,750	0.6%	Rank history: not on the FY2021–FY2022 lists, #43 in FY2023 and #25 in FY2024; down 2 since FY2024.
28	Dark Wolf Solutions, LLC Top agencies USAF (Department of the Air Force)	$13,565,524	0.6%	Rank history: not on the FY2021–FY2022 lists, #21 in FY2023 and #28 in FY2024; unchanged since FY2024.
29	Yudrio Inc Top agencies DOJ (Department of Justice)	$13,548,619	0.6%	Rank history: not on the FY2021–FY2023 lists and #84 in FY2024; up 55 since FY2024.
30	Consortium Management Group, Inc. Top agencies DCSA (Defense Counterintelligence and Security Agency)	$12,182,639	0.6%	Rank history: not on the FY2021–FY2023 lists and #69 in FY2024; up 39 since FY2024.
31	Accelgov LLC Top agencies NARA (National Archives and Records Administration)	$11,496,811	0.5%	Rank history: not on the FY2021–FY2022 lists, #71 in FY2023 and #32 in FY2024; up 1 since FY2024.
32	CMA Technology Inc. Top agencies HHS (Department of Health and Human Services)	$11,348,538	0.5%	Rank history: not on the FY2021–FY2022 lists, #79 in FY2023 and #24 in FY2024; down 8 since FY2024.
33	Metaphase Consulting LLC Top agencies Treasury (Department of the Treasury) DOI (Department of the Interior) DHS (Department of Homeland Security)	$11,160,080	0.5%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2023 and #77 in FY2024; up 44 since FY2024.
34	Tista Science and Technology Corporation Top agencies USDA (Department of Agriculture) HHS (Department of Health and Human Services)	$10,392,591	0.5%	Rank history: not on the FY2021 list, #36 in FY2022, #26 in FY2023 and #35 in FY2024; up 1 since FY2024.
35	Changeis, Inc. Top agencies DOT (Department of Transportation)	$10,349,448	0.5%	Rank history: not on the FY2021 list, #47 in FY2022, #37 in FY2023 and #46 in FY2024; up 11 since FY2024.
36	Medidata Solutions, Inc. Top agencies HHS (Department of Health and Human Services)	$10,184,758	0.5%	Rank history: not on the FY2021–FY2023 lists and #45 in FY2024; up 9 since FY2024.
37	Igniteaction LLC Top agencies Treasury (Department of the Treasury)	$10,178,266	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
38	Deloitte Through Deloitte Consulting LLP Top agencies USAF (Department of the Air Force) DISA (Defense Information Systems Agency)	$10,158,892	0.5%	Rank history: not on the FY2021–FY2023 lists and #15 in FY2024; down 23 since FY2024.
39	Soft TECH Consulting, Inc. Top agencies FCC (Federal Communications Commission)	$9,842,523	0.5%	Rank history: #74 in FY2021, not on the FY2022 list, #31 in FY2023 and #31 in FY2024; down 8 since FY2024.
40	Mediquant, LLC Top agencies DHA (Defense Health Agency)	$9,343,421	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
41	Agile Defense, LLC Top agencies Army (Department of the Army)	$9,255,569	0.4%	Rank history: #58 in FY2021, #51 in FY2022, #84 in FY2023 and not on the FY2024 list; up 308 since FY2024.
42	Thundercat Technology LLC Top agencies Commerce (Department of Commerce) VA (Department of Veterans Affairs) DOS (Department of State)	$8,793,262	0.4%	Rank history: not on the FY2021 list, #35 in FY2022, #59 in FY2023 and #48 in FY2024; up 6 since FY2024.
43	Teksynap Corporation Top agencies NRC (Nuclear Regulatory Commission) DTRA (Defense Threat Reduction Agency)	$8,718,793	0.4%	Rank history: #33 in FY2021, #44 in FY2022, #33 in FY2023 and #40 in FY2024; down 3 since FY2024.
44	Cisco Systems Inc. Top agencies DOS (Department of State)	$8,636,499	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
45	Bnl, Inc. Top agencies Commerce (Department of Commerce)	$8,627,844	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
46	Akima Systems Engineering LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$8,550,370	0.4%	Rank history: not on the FY2021–FY2023 lists and #44 in FY2024; down 2 since FY2024.
47	Evoke Research and Consulting, LLC Top agencies FCC (Federal Communications Commission)	$7,989,874	0.4%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2023 and #65 in FY2024; up 18 since FY2024.
48	Saliense Consulting LLC Top agencies Navy (Department of the Navy)	$7,262,097	0.3%	Rank history: not on the FY2021–FY2022 lists, #58 in FY2023 and #64 in FY2024; up 16 since FY2024.
49	Gama-1 Technologies, LLC Top agencies Commerce (Department of Commerce)	$7,121,846	0.3%	Rank history: not on the FY2021 list, #93 in FY2022 and not on the FY2023–FY2024 lists; up 55 since FY2024.
50	International Business Machines Corporation Top agencies Army (Department of the Army) Navy (Department of the Navy) Commerce (Department of Commerce)	$6,849,020	0.3%	Rank history: #66 in FY2021, #70 in FY2022, #72 in FY2023 and #71 in FY2024; up 21 since FY2024.
51	Technology, Automation & Management, Inc. Top agencies DMEA (Defense Microelectronics Activity)	$6,591,914	0.3%	Rank history: #47 in FY2021, #55 in FY2022, not on the FY2023 list and #58 in FY2024; up 7 since FY2024.
52	Concept Plus, LLC Top agencies Commerce (Department of Commerce) DLA (Defense Logistics Agency)	$6,526,991	0.3%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2023 and #74 in FY2024; up 22 since FY2024.
53	Dell Technologies Inc. Through Dell Federal Systems L.P Top agencies Commerce (Department of Commerce)	$6,432,814	0.3%	Rank history: not on the FY2021–FY2023 lists and #27 in FY2024; down 26 since FY2024.
54	Softrams LLC Top agencies DHS (Department of Homeland Security)	$6,150,411	0.3%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2023 and #53 in FY2024; down 1 since FY2024.
55	Earth Resources Technology, LLC Top agencies Commerce (Department of Commerce)	$6,116,617	0.3%	Rank history: not on the FY2021 list, #53 in FY2022, #57 in FY2023 and #57 in FY2024; up 2 since FY2024.
56	Manhattan Telecommunications Corporation LLC Top agencies NARA (National Archives and Records Administration) DHS (Department of Homeland Security)	$6,116,420	0.3%	Rank history: not on the FY2021–FY2022 lists, #80 in FY2023 and not on the FY2024 list; up 119 since FY2024.
57	Fedtec LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$6,053,568	0.3%	Rank history: not on the FY2021–FY2023 lists and #99 in FY2024; up 42 since FY2024.
58	Govcio, LLC Top agencies Treasury (Department of the Treasury)	$5,924,101	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
59	Full Spectrum Operations LLC Top agencies USAF (Department of the Air Force)	$5,876,466	0.3%	Rank history: #95 in FY2021 and not on the FY2022–FY2024 lists; up 127 since FY2024.
60	Riva Solutions Inc Top agencies Commerce (Department of Commerce)	$5,744,501	0.3%	Rank history: not on the FY2021–FY2024 lists; up 112 since FY2024.
61	Scitec Innovations LLC Top agencies USAF (Department of the Air Force)	$5,714,937	0.3%	Rank history: not on the FY2021 list, #77 in FY2022, #75 in FY2023 and #55 in FY2024; down 6 since FY2024.
62	Colossal Contracting LLC Top agencies Commerce (Department of Commerce) USDA (Department of Agriculture) NRC (Nuclear Regulatory Commission)	$5,576,174	0.3%	Rank history: not on the FY2021–FY2023 lists and #96 in FY2024; up 34 since FY2024.
63	Reston Consulting Group, Inc. Top agencies Treasury (Department of the Treasury) Commerce (Department of Commerce)	$5,565,447	0.3%	Rank history: not on the FY2021–FY2024 lists; up 104 since FY2024.
64	PAR Technology Corporation Through Rome Research, LLC Top agencies Navy (Department of the Navy)	$5,518,930	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
65	Spatial Front Inc Top agencies DHS (Department of Homeland Security) Commerce (Department of Commerce)	$5,291,863	0.2%	Rank history: not on the FY2021–FY2024 lists; up 161 since FY2024.
66	TCG Inc. Top agencies MCC (Millennium Challenge Corporation)	$5,263,650	0.2%	Rank history: #32 in FY2021, #29 in FY2022, #45 in FY2023 and #39 in FY2024; down 27 since FY2024.
67	Tiber Creek Consulting Inc. Top agencies Army (Department of the Army)	$5,254,645	0.2%	Rank history: #51 in FY2021, #62 in FY2022, #76 in FY2023 and #78 in FY2024; up 11 since FY2024.
68	Lalaith Astor Technical Consulting House, LLC Top agencies Commerce (Department of Commerce)	$5,223,912	0.2%	Rank history: not on the FY2021–FY2023 lists and #62 in FY2024; down 6 since FY2024.
69	Raye It Consulting LLC Top agencies Commerce (Department of Commerce)	$5,209,277	0.2%	Rank history: not on the FY2021–FY2024 lists; up 110 since FY2024.
70	Dynamic Systems Inc. Top agencies Commerce (Department of Commerce)	$5,191,971	0.2%	Rank history: not on the FY2021–FY2023 lists and #94 in FY2024; up 24 since FY2024.
71	Namauu Technological and Industrial LLC Top agencies USAF (Department of the Air Force) USCYBERCOM (Department of Defense Cyber Command)	$5,141,744	0.2%	Rank history: not on the FY2021–FY2022 lists, #82 in FY2023 and #85 in FY2024; up 14 since FY2024.
72	Black & Veatch Special Projects Corp. Top agencies DTRA (Defense Threat Reduction Agency)	$4,954,794	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
73	Tyto Government Solutions Inc. Top agencies Navy (Department of the Navy)	$4,809,570	0.2%	Rank history: not on the FY2021–FY2023 lists and #79 in FY2024; up 6 since FY2024.
74	Nana Regional Corporation, Inc. Through Akima Systems Engineering LLC Top agencies Navy (Department of the Navy)	$4,778,372	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
75	Hunatek System Solutions LLC Top agencies SBA (Small Business Administration)	$4,595,924	0.2%	Rank history: not on the FY2021–FY2024 lists; up 31 since FY2024.
76	Dsquorum LLC Top agencies Commerce (Department of Commerce)	$4,500,000	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
77	Four Points Technology, L.L.C. Top agencies VA (Department of Veterans Affairs) DECA (Defense Commissary Agency)	$4,433,870	0.2%	Rank history: #4 in FY2021, #22 in FY2022, #12 in FY2023 and #36 in FY2024; down 41 since FY2024.
78	Countertrade Products, Inc. Top agencies DOI (Department of the Interior) Commerce (Department of Commerce)	$4,276,022	0.2%	Rank history: not on the FY2021–FY2024 lists; up 265 since FY2024.
79	Seneca Strategic Partners, LLC Top agencies USDA (Department of Agriculture)	$4,082,203	0.2%	Rank history: not on the FY2021 list, #71 in FY2022, #92 in FY2023 and #76 in FY2024; down 3 since FY2024.
80	Patriot LLC Top agencies SBA (Small Business Administration)	$3,927,453	0.2%	Rank history: not on the FY2021–FY2022 lists, #40 in FY2023 and #63 in FY2024; down 17 since FY2024.
81	Storage Strategies Inc Top agencies Navy (Department of the Navy)	$3,909,968	0.2%	Rank history: not on the FY2021–FY2024 lists; up 67 since FY2024.
82	Mackson Consulting, LLC Top agencies HHS (Department of Health and Human Services)	$3,900,750	0.2%	Rank history: not on the FY2021–FY2024 lists; up 27 since FY2024.
83	Seventh Emergence Solutions, LLC Top agencies Army (Department of the Army)	$3,846,898	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
84	Application Research Center LLC Top agencies HHS (Department of Health and Human Services)	$3,688,185	0.2%	Rank history: not on the FY2021–FY2023 lists and #52 in FY2024; down 32 since FY2024.
85	Data Intelligence LLC Top agencies Navy (Department of the Navy)	$3,633,647	0.2%	Rank history: not on the FY2021–FY2024 lists; up 32 since FY2024.
86	Rainbow Data Systems, Inc. Top agencies DCMA (Defense Contract Management Agency) DLA (Defense Logistics Agency)	$3,556,535	0.2%	Rank history: not on the FY2021–FY2024 lists; up 64 since FY2024.
87	Asgn Incorporated Through ECS Federal, LLC Top agencies DOJ (Department of Justice)	$3,538,520	0.2%	Rank history: not on the FY2021–FY2023 lists and #42 in FY2024; down 45 since FY2024.
88	Straitsys Inc. Top agencies DOJ (Department of Justice)	$3,470,170	0.2%	Rank history: not on the FY2021–FY2023 lists and #81 in FY2024; down 7 since FY2024.
89	Sos International LLC Top agencies Army (Department of the Army)	$3,428,063	0.2%	Rank history: not on the FY2021–FY2024 lists; up 18 since FY2024.
90	Leisnoi Professional Services, LLC Top agencies DLA (Defense Logistics Agency) Commerce (Department of Commerce)	$3,411,063	0.2%	Rank history: not on the FY2021–FY2024 lists; up 95 since FY2024.
91	Koniag Data Solutions LLC Top agencies USDA (Department of Agriculture)	$3,298,879	0.2%	Rank history: not on the FY2021 list, #40 in FY2022, #16 in FY2023 and #83 in FY2024; down 8 since FY2024.
92	Validatek-Citi, LLC Top agencies DHS (Department of Homeland Security)	$3,277,624	0.2%	Rank history: #39 in FY2021, #50 in FY2022, #56 in FY2023 and #59 in FY2024; down 33 since FY2024.
93	Nationwide It Services Inc. Top agencies DLA (Defense Logistics Agency)	$3,277,601	0.2%	Rank history: not on the FY2021–FY2022 lists, #93 in FY2023 and not on the FY2024 list; up 10 since FY2024.
94	Aveshka, Inc. Top agencies EOP (Executive Office of the President)	$3,242,093	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
95	Digital Enterprise Solutions, Inc. Top agencies Navy (Department of the Navy)	$3,214,392	0.1%	Rank history: not on the FY2021–FY2024 lists; up 6 since FY2024.
96	Computer World Services Corp. Top agencies DHS (Department of Homeland Security) Treasury (Department of the Treasury)	$3,193,305	0.1%	Rank history: not on the FY2021–FY2023 lists and #67 in FY2024; down 29 since FY2024.
97	Hadron Industries, Inc. Top agencies Commerce (Department of Commerce)	$3,163,550	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
98	Sierra7, Inc. Top agencies USDA (Department of Agriculture)	$3,152,190	0.1%	Rank history: not on the FY2021–FY2024 lists; up 13 since FY2024.
99	Paratus Solutions LLC Top agencies Navy (Department of the Navy)	$3,140,307	0.1%	Rank history: not on the FY2021 list, #80 in FY2022 and not on the FY2023–FY2024 lists; up 14 since FY2024.
100	Distributed Computing System Solutions Provider, Inc. Top agencies USSOCOM (United States Special Operations Command)	$3,109,372	0.1%	Rank history: not on the FY2021–FY2024 lists; up 20 since FY2024.

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100 of 544 contractors listed here. See the rest on GovTribe.

How this ranking works

Source: every contract action FPDS records (as published on SAM.gov) in the period, as GovTribe received it.
Amounts are net obligations: what was obligated, less what was deobligated. Shares are of $2.17 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 DD01 contractors in FY2025?

1. General Dynamics Corporation ($171M), 2. Leidos Holdings, Inc. ($154M), 3. Science Applications International Corporation ($126M), 4. SES Space & Defense Inc. ($114M), 5. Booz Allen Hamilton Holding Corporation ($109M), 6. Accenture Federal Services LLC ($105M), 7. At&T Inc. ($90.8M), 8. Peraton Inc. ($62.5M), 9. DV United LLC ($52.1M), 10. Mindpoint Group LLC ($51.9M).

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