Top 100 Contractors in PSC DF01: IT and Telecom – IT Management Support Services (Labor), FY2024

Name: Top 100 Contractors in PSC DF01: IT and Telecom – IT Management Support Services (Labor), FY2024
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

Parent companies by net contract obligations Oct 1, 2023 – Sep 30, 2024 Code page on GovTribe

The top 10 won 38% of FY2024 PSC DF01 contract dollars

Contract obligations: $4,080,309,274 Net of deobligations, by contracts coded PSC DF01
Contractors: 694 Parent companies with an obligation
Largest contractor: Leidos Holdings, Inc. $362 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 · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Leidos Holdings, Inc. 4 awardees, including Leidos, Inc. and Leidos Digital Solutions Inc. Top agencies SSA (Social Security Administration) HHS (Department of Health and Human Services) DLA (Defense Logistics Agency)	$362,053,453	8.6%	Rank history: #18 in FY2021, #1 in FY2022, #1 in FY2023 and #2 in FY2025; unchanged since FY2023.
2	Deloitte 2 awardees, including Deloitte Consulting LLP and Deloitte & Touche LLP Top agencies Army (Department of the Army) DHRA (Defense Human Resources Activity) Treasury (Department of the Treasury)	$325,392,153	7.7%	Rank history: not on the FY2021–FY2023 lists and #1 in FY2025; new.
3	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) DHS (Department of Homeland Security)	$205,474,271	4.9%	Rank history: #6 in FY2021, #3 in FY2022, #2 in FY2023 and #3 in FY2025; down 1 since FY2023.
4	Accenture Federal Services LLC Top agencies DOE (Department of Energy) DLA (Defense Logistics Agency) ED (Department of Education)	$202,368,024	4.8%	Rank history: not on the FY2021–FY2023 lists and #4 in FY2025; new.
5	Peraton Inc. Top agencies DHRA (Defense Human Resources Activity) DOS (Department of State) WHS (DOD Washington Headquarters Service)	$111,314,170	2.6%	Rank history: not on the FY2021–FY2023 lists and #6 in FY2025; new.
6	CACI International Inc. 4 awardees, including Caci, Inc. - Federal, Caci Enterprise Solutions, LLC and Caci Nss, LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) Army (Department of the Army)	$110,073,909	2.6%	Rank history: #7 in FY2021, #11 in FY2022, #3 in FY2023 and #5 in FY2025; down 3 since FY2023.
7	Govcio, LLC Top agencies VA (Department of Veterans Affairs)	$87,998,592	2.1%	Rank history: not on the FY2021 list, #5 in FY2022, #5 in FY2023 and #10 in FY2025; down 2 since FY2023.
8	Science Applications International Corporation 3 awardees Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) DOT (Department of Transportation)	$62,050,620	1.5%	Rank history: #2 in FY2021, #6 in FY2022, #7 in FY2023 and #7 in FY2025; down 1 since FY2023.
9	Salient Crgt, Inc. Top agencies VA (Department of Veterans Affairs) DCSA (Defense Counterintelligence and Security Agency)	$58,916,012	1.4%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2025; new.
10	Esimplicity Inc. Top agencies HHS (Department of Health and Human Services)	$55,112,819	1.3%	Rank history: not on the FY2021–FY2023 lists and #13 in FY2025; new.
11	Caci Technologies LLC 4 awardees, including Caci, Inc. - Federal, Caci Enterprise Solutions, LLC and Caci Nss, LLC Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) Navy (Department of the Navy)	$48,019,653	1.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
12	Dignari, LLC Top agencies DHS (Department of Homeland Security)	$46,817,522	1.1%	Rank history: #29 in FY2021, #73 in FY2022, #19 in FY2023 and not on the FY2025 list; up 7 since FY2023.
13	Stratascor, LLC Top agencies Navy (Department of the Navy)	$45,471,411	1.1%	Rank history: not on the FY2021–FY2023 lists and #15 in FY2025; new.
14	By Light Professional It Services LLC Top agencies VA (Department of Veterans Affairs)	$40,212,306	1.0%	Rank history: not on the FY2021–FY2023 lists and #30 in FY2025; new.
15	Arctic Slope Regional Corporation 4 awardees, including Asrc Federal Highland Technology, Inc., Broadleaf, Inc. and Asrc Federal Data Networx, LLC Top agencies DOS (Department of State) USSOCOM (United States Special Operations Command) USDA (Department of Agriculture)	$38,414,878	0.9%	Rank history: #63 in FY2021, not on the FY2022–FY2023 lists and #14 in FY2025; up 315 since FY2023.
16	Teamstaff Inc. Through Dlh, LLC Top agencies HHS (Department of Health and Human Services)	$36,723,099	0.9%	Rank history: not on the FY2021–FY2022 lists, #83 in FY2023 and #22 in FY2025; up 67 since FY2023.
17	Compass Point LLC Top agencies USSOCOM (United States Special Operations Command) DOJ (Department of Justice)	$36,302,408	0.9%	Rank history: #56 in FY2021, #20 in FY2022, #15 in FY2023 and #23 in FY2025; down 2 since FY2023.
18	General Dynamics Corporation Through General Dynamics Information Technology, Inc. Top agencies CNCS (Corporation for National and Community Service) DOJ (Department of Justice) DLA (Defense Logistics Agency)	$35,182,124	0.8%	Rank history: #14 in FY2021, #15 in FY2022, #10 in FY2023 and #21 in FY2025; down 8 since FY2023.
19	Asgn Incorporated Through ECS Federal, LLC Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$34,933,029	0.8%	Rank history: not on the FY2021–FY2023 lists and #20 in FY2025; new.
20	CGI Federal Inc. Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security)	$32,791,771	0.8%	Rank history: not on the FY2021–FY2023 lists and #8 in FY2025; new.
21	Leidos, Inc. Top agencies HHS (Department of Health and Human Services)	$32,668,996	0.8%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
22	Credence Management Solutions Limited Liability Company Top agencies DLA (Defense Logistics Agency)	$30,873,252	0.7%	Rank history: #23 in FY2021, #18 in FY2022, #18 in FY2023 and #17 in FY2025; down 4 since FY2023.
23	22ND Century Technologies Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$29,677,748	0.7%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
24	Akumen, Inc. Top agencies DOS (Department of State)	$29,594,854	0.7%	Rank history: not on the FY2021–FY2023 lists and #12 in FY2025; new.
25	Logistics Systems Incorporated Top agencies USSOCOM (United States Special Operations Command) Army (Department of the Army)	$25,425,752	0.6%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2025; up 353 since FY2023.
26	Nationwide It Services Inc. Top agencies DOI (Department of the Interior) DLA (Defense Logistics Agency) DHA (Defense Health Agency)	$24,340,325	0.6%	Rank history: #45 in FY2021, #83 in FY2022, #31 in FY2023 and #28 in FY2025; up 5 since FY2023.
27	Idera Inc. Through Precise Software Solutions, Inc. Top agencies HHS (Department of Health and Human Services) Treasury (Department of the Treasury)	$24,216,613	0.6%	Rank history: #26 in FY2021, #25 in FY2022, #32 in FY2023 and #33 in FY2025; up 5 since FY2023.
28	BMA Technical Services, Inc. Top agencies DLA (Defense Logistics Agency)	$23,530,640	0.6%	Rank history: not on the FY2021–FY2022 lists, #70 in FY2023 and #36 in FY2025; up 42 since FY2023.
29	New River Systems Corporation Top agencies DLA (Defense Logistics Agency)	$22,133,985	0.5%	Rank history: not on the FY2021–FY2022 lists, #28 in FY2023 and #49 in FY2025; down 1 since FY2023.
30	Northrop Grumman Corporation Through Northrop Grumman Systems Corporation Top agencies Army (Department of the Army) DOJ (Department of Justice)	$21,899,402	0.5%	Rank history: #4 in FY2021, #13 in FY2022, #20 in FY2023 and #47 in FY2025; down 10 since FY2023.
31	Innovasystems International LLC Top agencies Navy (Department of the Navy)	$21,063,736	0.5%	Rank history: not on the FY2021 list, #19 in FY2022, #21 in FY2023 and #37 in FY2025; down 10 since FY2023.
32	Attain Consulting Group LLC Through Maximus Federal Technology Solutions, LLC Top agencies DOE (Department of Energy) EPA (Environmental Protection Agency)	$21,024,145	0.5%	Rank history: not on the FY2021–FY2023 lists and #65 in FY2025; new.
33	Bellese Technologies LLC Top agencies HHS (Department of Health and Human Services)	$20,507,416	0.5%	Rank history: not on the FY2021–FY2022 lists, #16 in FY2023 and #73 in FY2025; down 17 since FY2023.
34	Agile Defense LLC Top agencies Army (Department of the Army)	$20,371,843	0.5%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 86 since FY2023.
35	PBG Consulting, LLC Top agencies OPM (Office of Personnel Management)	$19,796,697	0.5%	Rank history: #24 in FY2021, #34 in FY2022, #48 in FY2023 and not on the FY2025 list; up 13 since FY2023.
36	Koniag Management Solutions LLC Top agencies Army (Department of the Army) DOS (Department of State)	$19,557,926	0.5%	Rank history: #77 in FY2021, #21 in FY2022, #23 in FY2023 and not on the FY2025 list; down 13 since FY2023.
37	CSA Global LLC Top agencies Navy (Department of the Navy)	$19,345,030	0.5%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2025; new.
38	Technology Solutions Provider, LLC Top agencies USDA (Department of Agriculture)	$18,782,969	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
39	CGI Technologies and Solutions Inc. Through CGI Federal Inc. Top agencies DOJ (Department of Justice)	$18,658,964	0.4%	Rank history: not on the FY2021 list, #8 in FY2022, #9 in FY2023 and not on the FY2025 list; down 30 since FY2023.
40	Dynamo Technologies, LLC Top agencies USDA (Department of Agriculture)	$18,503,340	0.4%	Rank history: #92 in FY2021, #89 in FY2022, #58 in FY2023 and not on the FY2025 list; up 18 since FY2023.
41	Client Solution Architects LLC Through CSA Global LLC Top agencies Navy (Department of the Navy)	$18,212,889	0.4%	Rank history: not on the FY2021 list, #23 in FY2022, #14 in FY2023 and not on the FY2025 list; down 27 since FY2023.
42	At-Impact LLC Top agencies USDA (Department of Agriculture) Treasury (Department of the Treasury)	$18,007,596	0.4%	Rank history: not on the FY2021–FY2022 lists, #34 in FY2023 and #39 in FY2025; down 8 since FY2023.
43	Ernst & Young LLP Top agencies HUD (Department of Housing and Urban Development)	$17,571,224	0.4%	Rank history: not on the FY2021 list, #30 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
44	Nakupuna Solutions, LLC Top agencies Navy (Department of the Navy)	$17,305,194	0.4%	Rank history: not on the FY2021 list, #50 in FY2022, #36 in FY2023 and #43 in FY2025; down 8 since FY2023.
45	Deloitte Consulting LLP Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$16,763,238	0.4%	Rank history: not on the FY2021–FY2022 lists, #12 in FY2023 and not on the FY2025 list; down 33 since FY2023.
46	JBW Feditc JV LLC Top agencies HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$16,252,293	0.4%	Rank history: not on the FY2021–FY2023 lists and #58 in FY2025; new.
47	Inserso Corporation Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force)	$15,919,230	0.4%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2023 and #63 in FY2025; up 6 since FY2023.
48	Derivative2 LLC Through Derivative LLC Top agencies Treasury (Department of the Treasury)	$15,856,234	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 160 since FY2023.
49	Tantus Technologies Inc. Through Sikich Federal Inc. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) Treasury (Department of the Treasury)	$15,240,174	0.4%	Rank history: not on the FY2021–FY2023 lists and #51 in FY2025; new.
50	Dell Technologies Inc. Through Dell Federal Systems L.P Top agencies DOT (Department of Transportation) Commerce (Department of Commerce) Smithsonian (Smithsonian Institution)	$15,056,825	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
51	Epsilon Inc Top agencies DOE (Department of Energy)	$14,681,446	0.3%	Rank history: not on the FY2021–FY2022 lists, #37 in FY2023 and #55 in FY2025; down 14 since FY2023.
52	Resource Management Concepts, Inc. Top agencies Navy (Department of the Navy)	$14,643,625	0.3%	Rank history: not on the FY2021–FY2022 lists, #49 in FY2023 and #38 in FY2025; down 3 since FY2023.
53	Teksynap Corporation Top agencies DLA (Defense Logistics Agency) NRC (Nuclear Regulatory Commission) DOI (Department of the Interior)	$14,547,192	0.3%	Rank history: #55 in FY2021, #31 in FY2022, #24 in FY2023 and #93 in FY2025; down 29 since FY2023.
54	It Partners, Inc. Top agencies DLA (Defense Logistics Agency)	$14,364,741	0.3%	Rank history: not on the FY2021–FY2023 lists and #27 in FY2025; new.
55	Optima Government Solutions LLC Top agencies USAF (Department of the Air Force)	$14,123,928	0.3%	Rank history: not on the FY2021–FY2022 lists, #46 in FY2023 and #57 in FY2025; down 9 since FY2023.
56	Mantech Advanced Systems International, Inc. Top agencies DOJ (Department of Justice) Navy (Department of the Navy)	$13,310,713	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
57	Carahsoft Technology Corp Top agencies DOE (Department of Energy) GSA (General Services Administration) Navy (Department of the Navy)	$13,213,729	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 97 since FY2023.
58	Information Technology Strategies, Inc. Top agencies DLA (Defense Logistics Agency)	$13,165,602	0.3%	Rank history: not on the FY2021–FY2022 lists, #44 in FY2023 and #44 in FY2025; down 14 since FY2023.
59	Relx Inc. 2 awardees, including Accuity Asset Verification Services Inc. Top agencies SSA (Social Security Administration) DOS (Department of State)	$13,072,875	0.3%	Rank history: not on the FY2021–FY2023 lists and #54 in FY2025; new.
60	Semanticbits LLC 2 awardees, including ICF Incorporated, L.L.C. Top agencies HHS (Department of Health and Human Services)	$13,044,960	0.3%	Rank history: not on the FY2021–FY2023 lists and #45 in FY2025; up 78 since FY2023.
61	Nimbus Consulting LLC Top agencies HHS (Department of Health and Human Services)	$12,985,135	0.3%	Rank history: not on the FY2021–FY2023 lists and #71 in FY2025; new.
62	Kadiak LLC Top agencies Army (Department of the Army)	$12,747,687	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
63	Datawiz Corporation Top agencies EPA (Environmental Protection Agency)	$12,326,234	0.3%	Rank history: not on the FY2021–FY2022 lists, #40 in FY2023 and not on the FY2025 list; down 23 since FY2023.
64	Guidehouse Digital LLC Top agencies USDA (Department of Agriculture) DHS (Department of Homeland Security)	$12,287,910	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
65	Nexgen Technologies Inc. Top agencies DOI (Department of the Interior)	$11,987,026	0.3%	Rank history: #48 in FY2021, #28 in FY2022, #45 in FY2023 and #86 in FY2025; down 20 since FY2023.
66	Network Designs Inc Top agencies DOJ (Department of Justice) DOT (Department of Transportation)	$11,955,464	0.3%	Rank history: not on the FY2021–FY2022 lists, #100 in FY2023 and not on the FY2025 list; up 34 since FY2023.
67	Yahya Technologies LLC Top agencies DLA (Defense Logistics Agency)	$11,914,564	0.3%	Rank history: not on the FY2021–FY2023 lists and #70 in FY2025; up 147 since FY2023.
68	Electrosoft Services Inc. Top agencies DLA (Defense Logistics Agency)	$11,713,562	0.3%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2023 and #68 in FY2025; up 18 since FY2023.
69	Phoenix Oversight Group LLC Top agencies USDA (Department of Agriculture)	$11,696,187	0.3%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2023 and #72 in FY2025; up 5 since FY2023.
70	Iron Eaglex, Inc. Top agencies USSOCOM (United States Special Operations Command) USAF (Department of the Air Force)	$11,679,361	0.3%	Rank history: not on the FY2021–FY2022 lists, #79 in FY2023 and not on the FY2025 list; up 9 since FY2023.
71	Riva Solutions Inc Top agencies HHS (Department of Health and Human Services) Commerce (Department of Commerce)	$11,262,274	0.3%	Rank history: not on the FY2021–FY2023 lists and #92 in FY2025; new.
72	Global Enterprise Solutions Inc. Top agencies USSOCOM (United States Special Operations Command)	$11,102,140	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
73	1Cyberforce, LLC Top agencies USAF (Department of the Air Force) DOJ (Department of Justice)	$11,015,872	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 197 since FY2023.
74	Xpect Solutions LLC Top agencies DOJ (Department of Justice)	$10,750,965	0.3%	Rank history: not on the FY2021–FY2023 lists and #29 in FY2025; new.
75	AGILE5 Technologies Inc Top agencies GSA (General Services Administration)	$10,748,725	0.3%	Rank history: not on the FY2021–FY2022 lists, #30 in FY2023 and #77 in FY2025; down 45 since FY2023.
76	Koniag It Systems, LLC Top agencies USDA (Department of Agriculture)	$10,676,013	0.3%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2023 and #25 in FY2025; down 8 since FY2023.
77	Chickasaw Strategic Pointe, LLC Top agencies HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$10,620,603	0.3%	Rank history: not on the FY2021 list, #56 in FY2022, #80 in FY2023 and #82 in FY2025; up 3 since FY2023.
78	Directviz Solutions, LLC Top agencies Army (Department of the Army)	$10,423,805	0.2%	Rank history: #54 in FY2021, #39 in FY2022, #59 in FY2023 and #83 in FY2025; down 19 since FY2023.
79	Skyward It Solutions, LLC Top agencies HHS (Department of Health and Human Services) DOT (Department of Transportation)	$10,189,381	0.2%	Rank history: not on the FY2021–FY2023 lists and #59 in FY2025; up 302 since FY2023.
80	Lawelawe Technology Services, Inc. Top agencies DHA (Defense Health Agency)	$10,092,719	0.2%	Rank history: not on the FY2021 list, #85 in FY2022, #66 in FY2023 and #81 in FY2025; down 14 since FY2023.
81	Evoke Research and Consulting, LLC Top agencies USDA (Department of Agriculture) DOE (Department of Energy)	$10,081,054	0.2%	Rank history: not on the FY2021 list, #65 in FY2022, #65 in FY2023 and not on the FY2025 list; down 16 since FY2023.
82	Silosmashers, Inc. Top agencies DHS (Department of Homeland Security)	$10,021,762	0.2%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2023 and #67 in FY2025; down 13 since FY2023.
83	Tetra Tech, Inc. 4 awardees, including Amyx Inc., Advanced Management Technology, Inc. and Bluewater Federal Solutions, Inc. Top agencies DLA (Defense Logistics Agency) DOL (Department of Labor) DHS (Department of Homeland Security)	$9,919,337	0.2%	Rank history: not on the FY2021–FY2023 lists and #98 in FY2025; up 138 since FY2023.
84	Leisnoi Professional Services LLC Top agencies DOS (Department of State)	$9,801,008	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
85	The Mitre Corporation Top agencies DOS (Department of State)	$9,419,303	0.2%	Rank history: not on the FY2021 list, #60 in FY2022, #39 in FY2023 and not on the FY2025 list; down 46 since FY2023.
86	Blue Water Thinking,Llc Top agencies VA (Department of Veterans Affairs)	$9,411,077	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
87	Innovative Management Concepts, Inc. Top agencies USAF (Department of the Air Force)	$9,321,832	0.2%	Rank history: #27 in FY2021, #64 in FY2022, #43 in FY2023 and #79 in FY2025; down 44 since FY2023.
88	Arlluk Technology Solutions LLC Top agencies USDA (Department of Agriculture) DOL (Department of Labor) HHS (Department of Health and Human Services)	$9,245,950	0.2%	Rank history: not on the FY2021–FY2023 lists and #84 in FY2025; new.
89	Soft TECH Consulting, Inc. Top agencies Army (Department of the Army) DOL (Department of Labor) HHS (Department of Health and Human Services)	$9,071,774	0.2%	Rank history: #96 in FY2021, #72 in FY2022, #60 in FY2023 and not on the FY2025 list; down 29 since FY2023.
90	United Solutions LLC Top agencies DOS (Department of State)	$9,010,252	0.2%	Rank history: not on the FY2021–FY2022 lists, #73 in FY2023 and not on the FY2025 list; down 17 since FY2023.
91	Softrams LLC Top agencies HHS (Department of Health and Human Services)	$8,826,059	0.2%	Rank history: #25 in FY2021, #40 in FY2022, #56 in FY2023 and not on the FY2025 list; down 35 since FY2023.
92	Great Hill Solutions, LLC Top agencies DOS (Department of State)	$8,790,299	0.2%	Rank history: not on the FY2021–FY2023 lists and #48 in FY2025; new.
93	ICF International, Inc. Through ICF Incorporated, L.L.C. Top agencies HHS (Department of Health and Human Services)	$8,624,050	0.2%	Rank history: #19 in FY2021, #45 in FY2022, #78 in FY2023 and not on the FY2025 list; down 15 since FY2023.
94	SHR Consulting Group LLC Top agencies Treasury (Department of the Treasury) DHS (Department of Homeland Security)	$8,538,612	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 15 since FY2023.
95	Ondaro LLC Top agencies USDA (Department of Agriculture) Smithsonian (Smithsonian Institution)	$8,500,458	0.2%	Rank history: not on the FY2021–FY2023 lists and #89 in FY2025; new.
96	Coggins International Corp Top agencies DLA (Defense Logistics Agency)	$8,476,775	0.2%	Rank history: #72 in FY2021, #99 in FY2022, not on the FY2023 list and #80 in FY2025; up 130 since FY2023.
97	Advanced Alliant Solutions Team, Limited Partnership Top agencies Army (Department of the Army) DISA (Defense Information Systems Agency)	$8,459,013	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
98	Favor Techconsulting LLC Top agencies DHS (Department of Homeland Security)	$8,439,368	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
99	Zolon PCS II, LLC Top agencies DHA (Defense Health Agency) IMLS (The Institute of Museum and Library Services)	$8,427,685	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 173 since FY2023.
100	Vision Cove Solutions LLC Top agencies Treasury (Department of the Treasury)	$8,394,084	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.

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100 of 694 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 $4.2 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 2024 ran Oct 1, 2023 – Sep 30, 2024. 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 FY2023. "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 FY2023 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 DF01 contractors in FY2024?

1. Leidos Holdings, Inc. ($362M), 2. Deloitte ($325M), 3. Booz Allen Hamilton Holding Corporation ($205M), 4. Accenture Federal Services LLC ($202M), 5. Peraton Inc. ($111M), 6. CACI International Inc. ($110M), 7. Govcio, LLC ($88M), 8. Science Applications International Corporation ($62.1M), 9. Salient Crgt, Inc. ($58.9M), 10. Esimplicity Inc. ($55.1M).

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