Top 100 Contractors in PSC DF01: IT and Telecom – IT Management Support Services (Labor), Jul 2025–Jun 2026

Name: Top 100 Contractors in PSC DF01: IT and Telecom – IT Management Support Services (Labor), Jul 2025–Jun 2026
Creator: GovTribe

Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe

The top 10 won 39% of PSC DF01 contract dollars from July 2025 through June 2026

Contract obligations: $4,642,182,907 Net of deobligations, by contracts coded PSC DF01
Contractors: 564 Parent companies with an obligation
Largest contractor: Deloitte $666 million, 13.4% 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	Deloitte 2 awardees, including Deloitte Consulting LLP and Deloitte & Touche LLP Top agencies Army (Department of the Army) DHRA (Defense Human Resources Activity) DOS (Department of State)	$665,667,072	13.4%	Rank history: not on the FY2021–FY2023 lists, #2 in FY2024 and #1 in FY2025; unchanged since Jul 2024–Jun 2025.
2	Leidos Holdings, Inc. 3 awardees, including Leidos, Inc. Top agencies SSA (Social Security Administration) HHS (Department of Health and Human Services) DTRA (Defense Threat Reduction Agency)	$359,804,348	7.2%	Rank history: #18 in FY2021, #1 in FY2022, #1 in FY2023, #1 in FY2024 and #2 in FY2025; up 1 since Jul 2024–Jun 2025.
3	Govcio, LLC Top agencies VA (Department of Veterans Affairs)	$148,264,296	3.0%	Rank history: not on the FY2021 list, #5 in FY2022, #5 in FY2023, #7 in FY2024 and #10 in FY2025; up 5 since Jul 2024–Jun 2025.
4	Accenture Federal Services LLC Top agencies DOE (Department of Energy) DLA (Defense Logistics Agency) Commerce (Department of Commerce)	$138,015,100	2.8%	Rank history: not on the FY2021–FY2023 lists, #4 in FY2024 and #4 in FY2025; unchanged since Jul 2024–Jun 2025.
5	General Dynamics Corporation 2 awardees, including General Dynamics Information Technology, Inc. and Iron Eaglex, Inc. Top agencies Army (Department of the Army) ED (Department of Education) USAF (Department of the Air Force)	$134,230,759	2.7%	Rank history: #14 in FY2021, #15 in FY2022, #10 in FY2023, #18 in FY2024 and #21 in FY2025; up 42 since Jul 2024–Jun 2025.
6	Science Applications International Corporation 2 awardees Top agencies DHS (Department of Homeland Security) PBGC (Pension Benefit Guaranty Corporation) GAO (Government Accountability Office)	$133,403,914	2.7%	Rank history: #2 in FY2021, #6 in FY2022, #7 in FY2023, #8 in FY2024 and #7 in FY2025; up 3 since Jul 2024–Jun 2025.
7	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice) Commerce (Department of Commerce)	$96,698,240	1.9%	Rank history: #6 in FY2021, #3 in FY2022, #2 in FY2023, #3 in FY2024 and #3 in FY2025; down 5 since Jul 2024–Jun 2025.
8	CACI International Inc. 2 awardees, including Caci, Inc. - Federal and Caci Nss, LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) Army (Department of the Army)	$93,013,754	1.9%	Rank history: #7 in FY2021, #11 in FY2022, #3 in FY2023, #6 in FY2024 and #5 in FY2025; down 2 since Jul 2024–Jun 2025.
9	Ernst & Young LLP 2 awardees, including Dignari, LLC Top agencies DHS (Department of Homeland Security) ED (Department of Education)	$89,410,098	1.8%	Rank history: not on the FY2021–FY2024 lists and #11 in FY2025; up 19 since Jul 2024–Jun 2025.
10	The Timken Company Through CGI Federal Inc. Top agencies SSA (Social Security Administration) DOJ (Department of Justice)	$84,230,229	1.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
11	Salient Crgt, Inc. Top agencies VA (Department of Veterans Affairs) GAO (Government Accountability Office) DCSA (Defense Counterintelligence and Security Agency)	$78,610,909	1.6%	Rank history: not on the FY2021–FY2023 lists, #9 in FY2024 and #9 in FY2025; down 4 since Jul 2024–Jun 2025.
12	Credence Management Solutions Limited Liability Company Top agencies DLA (Defense Logistics Agency)	$64,812,949	1.3%	Rank history: #23 in FY2021, #18 in FY2022, #18 in FY2023, #22 in FY2024 and #17 in FY2025; up 11 since Jul 2024–Jun 2025.
13	CGI Federal Inc. Top agencies SSA (Social Security Administration) DOJ (Department of Justice) PBGC (Pension Benefit Guaranty Corporation)	$62,985,567	1.3%	Rank history: not on the FY2021–FY2023 lists, #20 in FY2024 and #8 in FY2025; up 1 since Jul 2024–Jun 2025.
14	Peraton Inc. Top agencies DOS (Department of State) USAF (Department of the Air Force) DOJ (Department of Justice)	$56,753,343	1.1%	Rank history: not on the FY2021–FY2023 lists, #5 in FY2024 and #6 in FY2025; down 9 since Jul 2024–Jun 2025.
15	Sev1Tech, LLC Top agencies DHS (Department of Homeland Security)	$52,404,572	1.1%	Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; up 17 since Jul 2024–Jun 2025.
16	Arctic Slope Regional Corporation 7 awardees, including Asrc Federal Technology Solutions, LLC, Broadleaf, Inc. and Agile Decision Sciences, LLC Top agencies Army (Department of the Army) DOE (Department of Energy) USAF (Department of the Air Force)	$52,156,984	1.1%	Rank history: #63 in FY2021, not on the FY2022–FY2023 lists, #15 in FY2024 and #14 in FY2025; up 4 since Jul 2024–Jun 2025.
17	Esimplicity Inc. Top agencies HHS (Department of Health and Human Services)	$48,815,889	1.0%	Rank history: not on the FY2021–FY2023 lists, #10 in FY2024 and #13 in FY2025; down 4 since Jul 2024–Jun 2025.
18	CSA Global LLC Top agencies Navy (Department of the Navy)	$43,069,945	0.9%	Rank history: not on the FY2021–FY2023 lists, #37 in FY2024 and #19 in FY2025; up 7 since Jul 2024–Jun 2025.
19	Fedtec LLC Top agencies SSA (Social Security Administration) Army (Department of the Army)	$41,361,024	0.8%	Rank history: not on the FY2021–FY2025 lists; up 158 since Jul 2024–Jun 2025.
20	22Nd Century Technologies, Inc. Top agencies Navy (Department of the Navy)	$33,930,180	0.7%	Rank history: not on the FY2021–FY2022 lists, #76 in FY2023, not on the FY2024 list and #24 in FY2025; up 19 since Jul 2024–Jun 2025.
21	Amentum Holdings, Inc. Through Amentum Technology, Inc. Top agencies DOJ (Department of Justice)	$33,476,529	0.7%	Rank history: not on the FY2021–FY2024 lists and #31 in FY2025; new, not ranked in Jul 2024–Jun 2025.
22	Stratascor, LLC Top agencies Navy (Department of the Navy)	$33,181,563	0.7%	Rank history: not on the FY2021–FY2023 lists, #13 in FY2024 and #15 in FY2025; down 4 since Jul 2024–Jun 2025.
23	Resource Management Concepts, Inc. Top agencies Navy (Department of the Navy)	$31,746,880	0.6%	Rank history: not on the FY2021–FY2022 lists, #49 in FY2023, #52 in FY2024 and #38 in FY2025; up 61 since Jul 2024–Jun 2025.
24	Akumen, Inc. Top agencies DOS (Department of State)	$31,431,607	0.6%	Rank history: not on the FY2021–FY2023 lists, #24 in FY2024 and #12 in FY2025; down 12 since Jul 2024–Jun 2025.
25	Maximus Federal Services, Inc. Top agencies DOE (Department of Energy)	$29,581,552	0.6%	Rank history: not on the FY2021–FY2024 lists and #41 in FY2025; up 98 since Jul 2024–Jun 2025.
26	Koniag It Systems, LLC Top agencies Army (Department of the Army) USDA (Department of Agriculture)	$28,615,630	0.6%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2023, #76 in FY2024 and #25 in FY2025; up 140 since Jul 2024–Jun 2025.
27	Xpect Solutions LLC Top agencies DOJ (Department of Justice)	$28,343,391	0.6%	Rank history: not on the FY2021–FY2023 lists, #74 in FY2024 and #29 in FY2025; up 44 since Jul 2024–Jun 2025.
28	Optima Government Solutions LLC Top agencies USAF (Department of the Air Force)	$27,335,167	0.6%	Rank history: not on the FY2021–FY2022 lists, #46 in FY2023, #55 in FY2024 and #57 in FY2025; up 114 since Jul 2024–Jun 2025.
29	Definitive Logic Corporation Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security)	$25,645,357	0.5%	Rank history: #100 in FY2021, not on the FY2022–FY2024 lists and #40 in FY2025; up 54 since Jul 2024–Jun 2025.
30	Agile Defense, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$24,119,865	0.5%	Rank history: #64 in FY2021, #22 in FY2022, #35 in FY2023, not on the FY2024 list and #34 in FY2025; up 14 since Jul 2024–Jun 2025.
31	Id.me, LLC Top agencies SSA (Social Security Administration)	$23,624,100	0.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
32	Teamstaff Inc. Through Dlh, LLC Top agencies HHS (Department of Health and Human Services)	$23,399,523	0.5%	Rank history: not on the FY2021–FY2022 lists, #83 in FY2023, #16 in FY2024 and #22 in FY2025; down 13 since Jul 2024–Jun 2025.
33	Compass Point LLC Top agencies USAF (Department of the Air Force) DOJ (Department of Justice) OSD (Office of the Secretary of Defense)	$23,387,374	0.5%	Rank history: #56 in FY2021, #20 in FY2022, #15 in FY2023, #17 in FY2024 and #23 in FY2025; down 9 since Jul 2024–Jun 2025.
34	Carahsoft Technology Corp Top agencies HHS (Department of Health and Human Services) USSOCOM (United States Special Operations Command) USAF (Department of the Air Force)	$23,382,553	0.5%	Rank history: not on the FY2021–FY2023 lists, #57 in FY2024 and not on the FY2025 list; up 285 since Jul 2024–Jun 2025.
35	Idera Inc. Through Precise Software Solutions, Inc. Top agencies HHS (Department of Health and Human Services) DOL (Department of Labor)	$22,958,853	0.5%	Rank history: #26 in FY2021, #25 in FY2022, #32 in FY2023, #27 in FY2024 and #33 in FY2025; down 13 since Jul 2024–Jun 2025.
36	Logistics Systems Incorporated Top agencies USSOCOM (United States Special Operations Command) Army (Department of the Army)	$22,954,511	0.5%	Rank history: not on the FY2021–FY2023 lists, #25 in FY2024 and #26 in FY2025; down 15 since Jul 2024–Jun 2025.
37	Semanticbits LLC 2 awardees, including ICF Incorporated, L.L.C. Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior)	$22,466,354	0.5%	Rank history: not on the FY2021–FY2023 lists, #60 in FY2024 and #45 in FY2025; up 9 since Jul 2024–Jun 2025.
38	Samtek Inc. Top agencies HHS (Department of Health and Human Services)	$22,284,810	0.4%	Rank history: not on the FY2021 list, #47 in FY2022, #67 in FY2023, not on the FY2024 list and #52 in FY2025; up 98 since Jul 2024–Jun 2025.
39	Axle Informatics, LLC Top agencies HHS (Department of Health and Human Services)	$22,159,173	0.4%	Rank history: not on the FY2021–FY2024 lists and #76 in FY2025; new, not ranked in Jul 2024–Jun 2025.
40	Uncomn LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$21,650,750	0.4%	Rank history: not on the FY2021–FY2025 lists; up 110 since Jul 2024–Jun 2025.
41	BMA Technical Services, Inc. Top agencies DLA (Defense Logistics Agency)	$21,532,824	0.4%	Rank history: not on the FY2021–FY2022 lists, #70 in FY2023, #28 in FY2024 and #36 in FY2025; unchanged since Jul 2024–Jun 2025.
42	Chronos Operations LLC Top agencies Army (Department of the Army)	$20,757,039	0.4%	Rank history: not on the FY2021–FY2024 lists and #56 in FY2025; new, not ranked in Jul 2024–Jun 2025.
43	Tantus Technologies Inc. Through Sikich Federal Inc. Top agencies Treasury (Department of the Treasury) USDA (Department of Agriculture) DOT (Department of Transportation)	$20,641,589	0.4%	Rank history: not on the FY2021–FY2023 lists, #49 in FY2024 and #51 in FY2025; down 7 since Jul 2024–Jun 2025.
44	Koniag Professional Services, LLC Top agencies HHS (Department of Health and Human Services) DISA (Defense Information Systems Agency)	$20,155,856	0.4%	Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; up 291 since Jul 2024–Jun 2025.
45	Nakupuna Solutions, LLC Top agencies Navy (Department of the Navy)	$19,171,228	0.4%	Rank history: not on the FY2021 list, #50 in FY2022, #36 in FY2023, #44 in FY2024 and #43 in FY2025; down 18 since Jul 2024–Jun 2025.
46	Global Alliant Inc Top agencies HHS (Department of Health and Human Services) NLRB (National Labor Relations Board)	$18,728,596	0.4%	Rank history: not on the FY2021–FY2025 lists; up 154 since Jul 2024–Jun 2025.
47	Guidehouse Inc. Through Peraton Inc. Top agencies DOS (Department of State) DHRA (Defense Human Resources Activity) HHS (Department of Health and Human Services)	$18,411,081	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
48	Kpmg LLP Top agencies DCSA (Defense Counterintelligence and Security Agency) DLA (Defense Logistics Agency)	$17,589,873	0.4%	Rank history: not on the FY2021–FY2025 lists; up 82 since Jul 2024–Jun 2025.
49	Sohum Systems LLC Top agencies USDA (Department of Agriculture)	$17,539,362	0.4%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2023, not on the FY2024 list and #53 in FY2025; up 1 since Jul 2024–Jun 2025.
50	Skyward It Solutions, LLC Top agencies HHS (Department of Health and Human Services) DOT (Department of Transportation)	$17,466,267	0.4%	Rank history: not on the FY2021–FY2023 lists, #79 in FY2024 and #59 in FY2025; up 32 since Jul 2024–Jun 2025.
51	Improvix Technologies Inc. Top agencies DOS (Department of State)	$17,298,743	0.3%	Rank history: not on the FY2021–FY2024 lists and #50 in FY2025; up 14 since Jul 2024–Jun 2025.
52	Koniag Emerging Technologies LLC Top agencies DOS (Department of State)	$16,994,070	0.3%	Rank history: not on the FY2021–FY2024 lists and #91 in FY2025; new, not ranked in Jul 2024–Jun 2025.
53	Bellese Technologies LLC Top agencies HHS (Department of Health and Human Services)	$16,605,878	0.3%	Rank history: not on the FY2021–FY2022 lists, #16 in FY2023, #33 in FY2024 and #73 in FY2025; down 18 since Jul 2024–Jun 2025.
54	New River Systems Corporation Top agencies DLA (Defense Logistics Agency)	$16,595,430	0.3%	Rank history: not on the FY2021–FY2022 lists, #28 in FY2023, #29 in FY2024 and #49 in FY2025; down 5 since Jul 2024–Jun 2025.
55	By Light Professional It Services LLC Top agencies VA (Department of Veterans Affairs)	$16,527,590	0.3%	Rank history: not on the FY2021–FY2023 lists, #14 in FY2024 and #30 in FY2025; down 44 since Jul 2024–Jun 2025.
56	ManTech International Corporation 2 awardees, including Mantech Advanced Systems International, Inc. and Unison Software Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DOT (Department of Transportation)	$16,410,017	0.3%	Rank history: not on the FY2021–FY2024 lists and #60 in FY2025; down 2 since Jul 2024–Jun 2025.
57	At-Impact LLC Top agencies USDA (Department of Agriculture) Treasury (Department of the Treasury)	$16,210,004	0.3%	Rank history: not on the FY2021–FY2022 lists, #34 in FY2023, #42 in FY2024 and #39 in FY2025; down 26 since Jul 2024–Jun 2025.
58	Asgn Incorporated Through ECS Federal, LLC Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security)	$15,360,079	0.3%	Rank history: not on the FY2021–FY2023 lists, #19 in FY2024 and #20 in FY2025; down 42 since Jul 2024–Jun 2025.
59	Northrop Grumman Corporation Through Northrop Grumman Systems Corporation Top agencies Army (Department of the Army)	$15,177,194	0.3%	Rank history: #4 in FY2021, #13 in FY2022, #20 in FY2023, #30 in FY2024 and #47 in FY2025; down 29 since Jul 2024–Jun 2025.
60	Epsilon Inc Top agencies DOE (Department of Energy)	$14,773,494	0.3%	Rank history: not on the FY2021–FY2022 lists, #37 in FY2023, #51 in FY2024 and #55 in FY2025; down 9 since Jul 2024–Jun 2025.
61	Nimbus Consulting LLC Top agencies HHS (Department of Health and Human Services)	$14,630,601	0.3%	Rank history: not on the FY2021–FY2023 lists, #61 in FY2024 and #71 in FY2025; up 9 since Jul 2024–Jun 2025.
62	Relx Inc. 2 awardees, including Accuity Asset Verification Services Inc. Top agencies SSA (Social Security Administration) DOS (Department of State)	$14,425,822	0.3%	Rank history: not on the FY2021–FY2023 lists, #59 in FY2024 and #54 in FY2025; up 78 since Jul 2024–Jun 2025.
63	Planned Systems International Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$14,170,441	0.3%	Rank history: not on the FY2021–FY2025 lists; up 381 since Jul 2024–Jun 2025.
64	Inserso Corporation Top agencies DHS (Department of Homeland Security)	$13,913,017	0.3%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2023, #47 in FY2024 and #63 in FY2025; down 6 since Jul 2024–Jun 2025.
65	Teksynap Corporation Top agencies NRC (Nuclear Regulatory Commission) USITC (International Trade Commission) USAF (Department of the Air Force)	$13,609,757	0.3%	Rank history: #55 in FY2021, #31 in FY2022, #24 in FY2023, #53 in FY2024 and #93 in FY2025; up 29 since Jul 2024–Jun 2025.
66	Stellar Innovations & Solutions Inc. Top agencies DLA (Defense Logistics Agency)	$13,300,701	0.3%	Rank history: not on the FY2021–FY2024 lists and #66 in FY2025; down 7 since Jul 2024–Jun 2025.
67	Techtrend, Inc. Top agencies USDA (Department of Agriculture)	$13,297,411	0.3%	Rank history: not on the FY2021–FY2025 lists; up 46 since Jul 2024–Jun 2025.
68	Silosmashers, Inc. Top agencies DHS (Department of Homeland Security)	$12,820,890	0.3%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2023, #82 in FY2024 and #67 in FY2025; up 10 since Jul 2024–Jun 2025.
69	Serco Inc Top agencies Army (Department of the Army) Navy (Department of the Navy)	$12,703,671	0.3%	Rank history: not on the FY2021–FY2025 lists; up 80 since Jul 2024–Jun 2025.
70	Dell Technologies Inc. Through Dell Federal Systems L.P Top agencies DOT (Department of Transportation)	$12,420,309	0.3%	Rank history: not on the FY2021–FY2023 lists, #50 in FY2024 and not on the FY2025 list; up 215 since Jul 2024–Jun 2025.
71	Microsoft Corporation Top agencies DOS (Department of State)	$12,211,815	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
72	Beat LLC Through Business Enabled Acquisition and Technology, Inc. Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency)	$11,759,456	0.2%	Rank history: not on the FY2021–FY2024 lists and #75 in FY2025; up 50 since Jul 2024–Jun 2025.
73	DNI Emerging Technologies, LLC Top agencies Navy (Department of the Navy) HHS (Department of Health and Human Services) DOT (Department of Transportation)	$11,759,041	0.2%	Rank history: not on the FY2021–FY2025 lists; up 22 since Jul 2024–Jun 2025.
74	Nationwide It Services Inc. Top agencies DOI (Department of the Interior) DLA (Defense Logistics Agency) DHA (Defense Health Agency)	$11,661,723	0.2%	Rank history: #45 in FY2021, #83 in FY2022, #31 in FY2023, #26 in FY2024 and #28 in FY2025; down 48 since Jul 2024–Jun 2025.
75	Koniag, Inc. Through Kadiak LLC Top agencies Army (Department of the Army)	$11,598,219	0.2%	Rank history: #38 in FY2021, #59 in FY2022, #91 in FY2023, not on the FY2024 list and #62 in FY2025; down 3 since Jul 2024–Jun 2025.
76	Southpoint Consulting Inc. Top agencies USDA (Department of Agriculture)	$11,552,552	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
77	Nana Regional Corporation, Inc. 4 awardees, including Akima Data Management LLC, Tundra Federal LLC and Akima Systems Engineering LLC Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) DHS (Department of Homeland Security)	$11,279,675	0.2%	Rank history: not on the FY2021–FY2025 lists; up 126 since Jul 2024–Jun 2025.
78	Research Management Consultants Inc. Top agencies OPM (Office of Personnel Management)	$10,919,924	0.2%	Rank history: not on the FY2021–FY2024 lists and #35 in FY2025; down 36 since Jul 2024–Jun 2025.
79	Tatitlek Government Services, LLC Top agencies Treasury (Department of the Treasury)	$10,900,462	0.2%	Rank history: not on the FY2021–FY2024 lists and #46 in FY2025; down 18 since Jul 2024–Jun 2025.
80	Lawelawe Technology Services, Inc. Top agencies DHA (Defense Health Agency)	$10,689,473	0.2%	Rank history: not on the FY2021 list, #85 in FY2022, #66 in FY2023, #80 in FY2024 and #81 in FY2025; down 3 since Jul 2024–Jun 2025.
81	Four Points Technology, L.L.C. Top agencies GAO (Government Accountability Office) DHS (Department of Homeland Security) DOS (Department of State)	$10,521,026	0.2%	Rank history: not on the FY2021–FY2025 lists; up 279 since Jul 2024–Jun 2025.
82	Yahya Technologies LLC Top agencies DLA (Defense Logistics Agency)	$10,519,824	0.2%	Rank history: not on the FY2021–FY2023 lists, #67 in FY2024 and #70 in FY2025; up 25 since Jul 2024–Jun 2025.
83	ABT Global LLC Through Technology Solutions Provider, LLC Top agencies USDA (Department of Agriculture)	$10,480,961	0.2%	Rank history: not on the FY2021–FY2024 lists and #88 in FY2025; up 355 since Jul 2024–Jun 2025.
84	Nexgen Technologies Inc. Top agencies DOI (Department of the Interior)	$10,342,482	0.2%	Rank history: #48 in FY2021, #28 in FY2022, #45 in FY2023, #65 in FY2024 and #86 in FY2025; down 17 since Jul 2024–Jun 2025.
85	DRT Strategies, Inc. Top agencies HHS (Department of Health and Human Services)	$10,129,517	0.2%	Rank history: not on the FY2021–FY2022 lists, #61 in FY2023, not on the FY2024 list and #87 in FY2025; up 41 since Jul 2024–Jun 2025.
86	It Concepts, Inc. Top agencies DHA (Defense Health Agency) SSA (Social Security Administration)	$10,020,953	0.2%	Rank history: not on the FY2021–FY2024 lists and #85 in FY2025; up 17 since Jul 2024–Jun 2025.
87	V3Gate, LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) USDA (Department of Agriculture)	$10,019,713	0.2%	Rank history: not on the FY2021 list, #98 in FY2022, not on the FY2023–FY2024 lists and #74 in FY2025; up 95 since Jul 2024–Jun 2025.
88	Bowhead Cybersecurity Solutions & Services, LLC Top agencies Navy (Department of the Navy)	$9,798,289	0.2%	Rank history: #88 in FY2021, not on the FY2022–FY2024 lists and #61 in FY2025; down 28 since Jul 2024–Jun 2025.
89	Electrosoft Services Inc. Top agencies DLA (Defense Logistics Agency)	$9,687,030	0.2%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2023, #68 in FY2024 and #68 in FY2025; down 41 since Jul 2024–Jun 2025.
90	JSI Telecom Inc. Top agencies DOJ (Department of Justice)	$9,667,830	0.2%	Rank history: not on the FY2021–FY2024 lists and #94 in FY2025; up 186 since Jul 2024–Jun 2025.
91	Tahkox E2 Services, LLC Top agencies HHS (Department of Health and Human Services)	$9,603,357	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
92	Great Hill Solutions, LLC Top agencies DOS (Department of State) USDA (Department of Agriculture)	$9,531,633	0.2%	Rank history: not on the FY2021–FY2023 lists, #92 in FY2024 and #48 in FY2025; down 59 since Jul 2024–Jun 2025.
93	Riva Solutions Inc Top agencies HHS (Department of Health and Human Services)	$9,514,181	0.2%	Rank history: not on the FY2021–FY2023 lists, #71 in FY2024 and #92 in FY2025; down 25 since Jul 2024–Jun 2025.
94	Caci Enterprise Solutions LLC Top agencies Navy (Department of the Navy)	$9,505,877	0.2%	Rank history: not on the FY2021–FY2024 lists and #16 in FY2025; down 77 since Jul 2024–Jun 2025.
95	Arlluk Technology Solutions LLC Top agencies USDA (Department of Agriculture) DOL (Department of Labor)	$9,384,113	0.2%	Rank history: not on the FY2021–FY2023 lists, #88 in FY2024 and #84 in FY2025; down 31 since Jul 2024–Jun 2025.
96	Twenty8 Technology LLC Top agencies DARPA (Defense Advanced Research Projects Agency)	$9,148,703	0.2%	Rank history: not on the FY2021–FY2025 lists; up 56 since Jul 2024–Jun 2025.
97	Directviz Solutions, LLC Top agencies Army (Department of the Army)	$8,966,243	0.2%	Rank history: #54 in FY2021, #39 in FY2022, #59 in FY2023, #78 in FY2024 and #83 in FY2025; down 24 since Jul 2024–Jun 2025.
98	Concept Solutions LLC Top agencies DOT (Department of Transportation)	$8,965,570	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
99	Foxhole Technology LLC Top agencies DOT (Department of Transportation)	$8,944,618	0.2%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2023, not on the FY2024 list and #90 in FY2025; down 2 since Jul 2024–Jun 2025.
100	Incadence Strategic Solutions LLC Top agencies DHS (Department of Homeland Security)	$8,875,491	0.2%	Rank history: not on the FY2021–FY2025 lists; up 252 since Jul 2024–Jun 2025.

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100 of 564 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 $4.96 billion obligated before deobligations, so they never pass 100%.
Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
Rank changes compare with Jul 2024–Jun 2025. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list.
Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers

Who were the top 10 PSC DF01 contractors in Jul 2025–Jun 2026?

1. Deloitte ($666M), 2. Leidos Holdings, Inc. ($360M), 3. Govcio, LLC ($148M), 4. Accenture Federal Services LLC ($138M), 5. General Dynamics Corporation ($134M), 6. Science Applications International Corporation ($133M), 7. Booz Allen Hamilton Holding Corporation ($96.7M), 8. CACI International Inc. ($93M), 9. Ernst & Young LLP ($89.4M), 10. The Timken Company ($84.2M).

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