Top 100 Contractors in PSC DF01: IT and Telecom – IT Management Support Services (Labor), FY2023

Name: Top 100 Contractors in PSC DF01: IT and Telecom – IT Management Support Services (Labor), FY2023
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

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

The top 10 won 34% of FY2023 PSC DF01 contract dollars

Contract obligations: $3,093,039,256 Net of deobligations, by contracts coded PSC DF01
Contractors: 653 Parent companies with an obligation
Largest contractor: Leidos Holdings, Inc. $364 million, 11.6% 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)	$364,382,465	11.6%	Rank history: #18 in FY2021, #1 in FY2022, #1 in FY2024 and #2 in FY2025; unchanged since FY2022.
2	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) Treasury (Department of the Treasury)	$144,890,474	4.6%	Rank history: #6 in FY2021, #3 in FY2022, #3 in FY2024 and #3 in FY2025; up 1 since FY2022.
3	CACI International Inc. 3 awardees, including Caci, Inc. - Federal, Caci Nss, LLC and Caci Enterprise Solutions, LLC Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) DOJ (Department of Justice)	$113,275,931	3.6%	Rank history: #7 in FY2021, #11 in FY2022, #6 in FY2024 and #5 in FY2025; up 8 since FY2022.
4	Accenture Inc. Through Accenture Federal Services LLC Top agencies DOE (Department of Energy) DLA (Defense Logistics Agency) USDA (Department of Agriculture)	$92,809,548	3.0%	Rank history: not on the FY2021 list, #9 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
5	Govcio, LLC Top agencies VA (Department of Veterans Affairs)	$78,566,841	2.5%	Rank history: not on the FY2021 list, #5 in FY2022, #7 in FY2024 and #10 in FY2025; unchanged since FY2022.
6	Deloitte LLP 2 awardees, including Deloitte & Touche LLP and Deloitte Consulting LLP Top agencies Treasury (Department of the Treasury) Army (Department of the Army) DHS (Department of Homeland Security)	$77,585,445	2.5%	Rank history: #3 in FY2021, #4 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
7	Science Applications International Corporation Top agencies DHS (Department of Homeland Security) USDA (Department of Agriculture) Navy (Department of the Navy)	$54,391,765	1.7%	Rank history: #2 in FY2021, #6 in FY2022, #8 in FY2024 and #7 in FY2025; down 1 since FY2022.
8	Criterion Systems, L.L.C. Top agencies DOE (Department of Energy)	$54,084,824	1.7%	Rank history: #5 in FY2021, #10 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
9	CGI Technologies and Solutions Inc. Through CGI Federal Inc. Top agencies DOJ (Department of Justice) Treasury (Department of the Treasury)	$49,643,081	1.6%	Rank history: not on the FY2021 list, #8 in FY2022, #39 in FY2024 and not on the FY2025 list; down 1 since FY2022.
10	General Dynamics Corporation Through General Dynamics Information Technology, Inc. Top agencies CNCS (Corporation for National and Community Service) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$41,995,155	1.3%	Rank history: #14 in FY2021, #15 in FY2022, #18 in FY2024 and #21 in FY2025; up 5 since FY2022.
11	Mantech International Corporation Through Mantech Advanced Systems International, Inc. Top agencies DOJ (Department of Justice) Navy (Department of the Navy) DISA (Defense Information Systems Agency)	$40,508,166	1.3%	Rank history: not on the FY2021 list, #16 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
12	Deloitte Consulting LLP Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) Army (Department of the Army)	$38,896,706	1.2%	Rank history: not on the FY2021–FY2022 lists, #45 in FY2024 and not on the FY2025 list; up 104 since FY2022.
13	HP Enterprise Services LLC 2 awardees, including Peraton Inc. Top agencies HHS (Department of Health and Human Services) DLA (Defense Logistics Agency) DOJ (Department of Justice)	$37,576,341	1.2%	Rank history: #11 in FY2021, #7 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
14	Client Solution Architects LLC Through CSA Global LLC Top agencies Navy (Department of the Navy)	$36,426,259	1.2%	Rank history: not on the FY2021 list, #23 in FY2022, #41 in FY2024 and not on the FY2025 list; up 9 since FY2022.
15	Compass Point LLC Top agencies USSOCOM (United States Special Operations Command) DOJ (Department of Justice)	$32,630,998	1.0%	Rank history: #56 in FY2021, #20 in FY2022, #17 in FY2024 and #23 in FY2025; up 5 since FY2022.
16	Bellese Technologies LLC Top agencies HHS (Department of Health and Human Services)	$28,262,298	0.9%	Rank history: not on the FY2021–FY2022 lists, #33 in FY2024 and #73 in FY2025; new.
17	Esimplicity Inc. Top agencies HHS (Department of Health and Human Services)	$27,684,287	0.9%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
18	Credence Management Solutions Limited Liability Company Top agencies DLA (Defense Logistics Agency)	$25,995,679	0.8%	Rank history: #23 in FY2021, #18 in FY2022, #22 in FY2024 and #17 in FY2025; unchanged since FY2022.
19	Dignari, LLC Top agencies DHS (Department of Homeland Security)	$25,112,213	0.8%	Rank history: #29 in FY2021, #73 in FY2022, #12 in FY2024 and not on the FY2025 list; up 54 since FY2022.
20	Northrop Grumman Corporation Through Northrop Grumman Systems Corporation Top agencies Army (Department of the Army)	$22,325,606	0.7%	Rank history: #4 in FY2021, #13 in FY2022, #30 in FY2024 and #47 in FY2025; down 7 since FY2022.
21	Innovasystems International LLC Top agencies Navy (Department of the Navy)	$21,797,033	0.7%	Rank history: not on the FY2021 list, #19 in FY2022, #31 in FY2024 and #37 in FY2025; down 2 since FY2022.
22	On Assignment, Inc. 2 awardees, including ECS Federal, LLC and Indrasoft Inc. Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$21,552,513	0.7%	Rank history: #13 in FY2021, #38 in FY2022 and not on the FY2024–FY2025 lists; up 16 since FY2022.
23	Koniag Management Solutions LLC Top agencies Army (Department of the Army) DOS (Department of State)	$21,416,737	0.7%	Rank history: #77 in FY2021, #21 in FY2022, #36 in FY2024 and not on the FY2025 list; down 2 since FY2022.
24	Teksynap Corporation Top agencies DLA (Defense Logistics Agency) NRC (Nuclear Regulatory Commission) DOI (Department of the Interior)	$20,336,945	0.6%	Rank history: #55 in FY2021, #31 in FY2022, #53 in FY2024 and #93 in FY2025; up 7 since FY2022.
25	UIC Government Services LLC 2 awardees, including Bowhead Cybersecurity Solutions & Services, LLC and Bowhead Total Enterprise Solutions, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$19,383,769	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 107 since FY2022.
26	Dlh, LLC Top agencies HHS (Department of Health and Human Services)	$19,207,432	0.6%	Rank history: #8 in FY2021, #12 in FY2022 and not on the FY2024–FY2025 lists; down 14 since FY2022.
27	Maximus Inc. 2 awardees, including Maximus Federal Technology Solutions, LLC Top agencies DOE (Department of Energy) EPA (Environmental Protection Agency)	$19,019,992	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 83 since FY2022.
28	New River Systems Corporation Top agencies DLA (Defense Logistics Agency)	$18,965,969	0.6%	Rank history: not on the FY2021–FY2022 lists, #29 in FY2024 and #49 in FY2025; up 96 since FY2022.
29	Motorola Inc Through Motorola Solutions, Inc. Top agencies USAF (Department of the Air Force)	$18,083,012	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
30	AGILE5 Technologies Inc Top agencies GSA (General Services Administration)	$17,189,282	0.5%	Rank history: not on the FY2021–FY2022 lists, #75 in FY2024 and #77 in FY2025; new.
31	Nationwide It Services Inc. Top agencies DOI (Department of the Interior) DLA (Defense Logistics Agency) DHA (Defense Health Agency)	$16,608,115	0.5%	Rank history: #45 in FY2021, #83 in FY2022, #26 in FY2024 and #28 in FY2025; up 52 since FY2022.
32	Idera Inc. 3 awardees, including Precise Software Solutions, Inc. Top agencies HHS (Department of Health and Human Services) Treasury (Department of the Treasury) Smithsonian (Smithsonian Institution)	$16,554,132	0.5%	Rank history: #26 in FY2021, #25 in FY2022, #27 in FY2024 and #33 in FY2025; down 7 since FY2022.
33	ACE Info Solutions LLC Through Guidehouse Digital LLC Top agencies USDA (Department of Agriculture) DHS (Department of Homeland Security)	$16,405,500	0.5%	Rank history: #32 in FY2021, #81 in FY2022 and not on the FY2024–FY2025 lists; up 48 since FY2022.
34	At-Impact LLC Top agencies USDA (Department of Agriculture) Treasury (Department of the Treasury)	$16,274,519	0.5%	Rank history: not on the FY2021–FY2022 lists, #42 in FY2024 and #39 in FY2025; new.
35	Agile Defense, LLC Top agencies Army (Department of the Army)	$16,064,318	0.5%	Rank history: #64 in FY2021, #22 in FY2022, not on the FY2024 list and #34 in FY2025; down 13 since FY2022.
36	Nakupuna Solutions, LLC Top agencies Navy (Department of the Navy)	$16,020,430	0.5%	Rank history: not on the FY2021 list, #50 in FY2022, #44 in FY2024 and #43 in FY2025; up 14 since FY2022.
37	Epsilon Inc Top agencies DOE (Department of Energy)	$16,002,642	0.5%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2024 and #55 in FY2025; new.
38	Sikich Federal Inc. Top agencies Treasury (Department of the Treasury) USDA (Department of Agriculture) DOT (Department of Transportation)	$15,947,535	0.5%	Rank history: not on the FY2021 list, #37 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
39	The Mitre Corporation Top agencies DOS (Department of State)	$15,810,066	0.5%	Rank history: not on the FY2021 list, #60 in FY2022, #85 in FY2024 and not on the FY2025 list; up 21 since FY2022.
40	Datawiz Corporation Top agencies EPA (Environmental Protection Agency)	$14,566,313	0.5%	Rank history: not on the FY2021–FY2022 lists, #63 in FY2024 and not on the FY2025 list; new.
41	Xpect Solutions Inc. Top agencies DOJ (Department of Justice)	$14,406,155	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
42	Nimbus Consulting LLC Top agencies HHS (Department of Health and Human Services)	$14,318,534	0.5%	Rank history: #15 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 152 since FY2022.
43	Innovative Management Concepts, Inc. Top agencies USAF (Department of the Air Force)	$13,665,474	0.4%	Rank history: #27 in FY2021, #64 in FY2022, #87 in FY2024 and #79 in FY2025; up 21 since FY2022.
44	Information Technology Strategies, Inc. Top agencies DLA (Defense Logistics Agency)	$13,608,021	0.4%	Rank history: not on the FY2021–FY2022 lists, #58 in FY2024 and #44 in FY2025; up 253 since FY2022.
45	Nexgen Technologies Inc. Top agencies DOI (Department of the Interior)	$13,494,787	0.4%	Rank history: #48 in FY2021, #28 in FY2022, #65 in FY2024 and #86 in FY2025; down 17 since FY2022.
46	Optima Government Solutions LLC Top agencies USAF (Department of the Air Force)	$12,945,075	0.4%	Rank history: not on the FY2021–FY2022 lists, #55 in FY2024 and #57 in FY2025; new.
47	Sohum Systems LLC Top agencies USDA (Department of Agriculture)	$12,888,565	0.4%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #53 in FY2025; new.
48	PBG Consulting, LLC Top agencies OPM (Office of Personnel Management)	$12,802,754	0.4%	Rank history: #24 in FY2021, #34 in FY2022, #35 in FY2024 and not on the FY2025 list; down 14 since FY2022.
49	Resource Management Concepts, Inc. Top agencies Navy (Department of the Navy)	$12,428,175	0.4%	Rank history: not on the FY2021–FY2022 lists, #52 in FY2024 and #38 in FY2025; new.
50	Technology Solutions Provider Inc Top agencies USDA (Department of Agriculture)	$12,394,310	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
51	Federal Resources Corporation Top agencies HHS (Department of Health and Human Services) DOS (Department of State) Navy (Department of the Navy)	$12,253,269	0.4%	Rank history: not on the FY2021 list, #17 in FY2022 and not on the FY2024–FY2025 lists; down 34 since FY2022.
52	Amyx Inc. Top agencies DLA (Defense Logistics Agency)	$12,167,612	0.4%	Rank history: #49 in FY2021, #58 in FY2022 and not on the FY2024–FY2025 lists; up 6 since FY2022.
53	Inserso Corporation Top agencies DHS (Department of Homeland Security)	$12,162,631	0.4%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2024 and #63 in FY2025; up 314 since FY2022.
54	Ernst & Young LLP Top agencies HUD (Department of Housing and Urban Development)	$11,484,509	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 96 since FY2022.
55	Relx Inc 2 awardees, including Accuity Asset Verification Services Inc. Top agencies SSA (Social Security Administration) DOS (Department of State)	$11,482,544	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
56	Softrams LLC Top agencies HHS (Department of Health and Human Services)	$11,161,819	0.4%	Rank history: #25 in FY2021, #40 in FY2022, #91 in FY2024 and not on the FY2025 list; down 16 since FY2022.
57	The Tatitlek Corporation Through Tatitlek Federal Services LLC Top agencies Treasury (Department of the Treasury)	$11,148,899	0.4%	Rank history: #36 in FY2021, #33 in FY2022 and not on the FY2024–FY2025 lists; down 24 since FY2022.
58	Dynamo Technologies, LLC Top agencies USDA (Department of Agriculture)	$10,927,242	0.3%	Rank history: #92 in FY2021, #89 in FY2022, #40 in FY2024 and not on the FY2025 list; up 31 since FY2022.
59	Directviz Solutions, LLC Top agencies Army (Department of the Army) ED (Department of Education)	$10,908,623	0.3%	Rank history: #54 in FY2021, #39 in FY2022, #78 in FY2024 and #83 in FY2025; down 20 since FY2022.
60	Soft TECH Consulting, Inc. Top agencies Army (Department of the Army) DOL (Department of Labor)	$10,868,425	0.3%	Rank history: #96 in FY2021, #72 in FY2022, #89 in FY2024 and not on the FY2025 list; up 12 since FY2022.
61	DRT Strategies, Inc. Top agencies HHS (Department of Health and Human Services)	$10,658,623	0.3%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #87 in FY2025; new.
62	Microsoft Corporation Top agencies USSOCOM (United States Special Operations Command) Navy (Department of the Navy) DOS (Department of State)	$10,435,949	0.3%	Rank history: #33 in FY2021, #51 in FY2022, not on the FY2024 list and #32 in FY2025; down 11 since FY2022.
63	Citizant, Inc. Top agencies Treasury (Department of the Treasury)	$10,232,231	0.3%	Rank history: not on the FY2021 list, #52 in FY2022 and not on the FY2024–FY2025 lists; down 11 since FY2022.
64	Sapient Corporation Through Onpoint Consulting, Inc. Top agencies HHS (Department of Health and Human Services)	$9,950,830	0.3%	Rank history: #58 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 250 since FY2022.
65	Evoke Research and Consulting, LLC Top agencies USDA (Department of Agriculture) DOE (Department of Energy)	$9,780,372	0.3%	Rank history: not on the FY2021 list, #65 in FY2022, #81 in FY2024 and not on the FY2025 list; unchanged since FY2022.
66	Lawelawe Technology Services, Inc. Top agencies DHA (Defense Health Agency)	$9,717,239	0.3%	Rank history: not on the FY2021 list, #85 in FY2022, #80 in FY2024 and #81 in FY2025; up 19 since FY2022.
67	Samtek Inc. Top agencies HHS (Department of Health and Human Services)	$9,660,942	0.3%	Rank history: not on the FY2021 list, #47 in FY2022, not on the FY2024 list and #52 in FY2025; down 20 since FY2022.
68	Koniag It Systems, LLC Top agencies USDA (Department of Agriculture)	$9,549,319	0.3%	Rank history: not on the FY2021–FY2022 lists, #76 in FY2024 and #25 in FY2025; new.
69	Silosmashers, Inc. Top agencies DHS (Department of Homeland Security)	$9,445,808	0.3%	Rank history: not on the FY2021–FY2022 lists, #82 in FY2024 and #67 in FY2025; new.
70	BMA Technical Services, Inc. Top agencies DLA (Defense Logistics Agency)	$9,337,027	0.3%	Rank history: not on the FY2021–FY2022 lists, #28 in FY2024 and #36 in FY2025; new.
71	Xfinion Inc. Top agencies DOS (Department of State)	$9,114,269	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
72	Asrc Federal Data Networx, LLC Top agencies USDA (Department of Agriculture)	$9,090,422	0.3%	Rank history: #22 in FY2021, #36 in FY2022 and not on the FY2024–FY2025 lists; down 36 since FY2022.
73	United Solutions LLC Top agencies DOS (Department of State)	$8,940,722	0.3%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2024 and not on the FY2025 list; new.
74	Phoenix Oversight Group LLC Top agencies USDA (Department of Agriculture)	$8,755,244	0.3%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2024 and #72 in FY2025; new.
75	Riva Solutions Inc Top agencies HHS (Department of Health and Human Services)	$8,712,211	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
76	22Nd Century Technologies, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$8,674,524	0.3%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #24 in FY2025; up 43 since FY2022.
77	Seneca Global Services LLC Top agencies DHA (Defense Health Agency) Army (Department of the Army)	$8,671,290	0.3%	Rank history: #71 in FY2021, #70 in FY2022 and not on the FY2024–FY2025 lists; down 7 since FY2022.
78	ICF International, Inc. Through ICF Incorporated, L.L.C. Top agencies HHS (Department of Health and Human Services)	$8,631,369	0.3%	Rank history: #19 in FY2021, #45 in FY2022, #93 in FY2024 and not on the FY2025 list; down 33 since FY2022.
79	Iron Eaglex, Inc. Top agencies USAF (Department of the Air Force) USSOCOM (United States Special Operations Command)	$8,575,767	0.3%	Rank history: not on the FY2021–FY2022 lists, #70 in FY2024 and not on the FY2025 list; up 154 since FY2022.
80	Chickasaw Strategic Pointe, LLC Top agencies HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$8,542,467	0.3%	Rank history: not on the FY2021 list, #56 in FY2022, #77 in FY2024 and #82 in FY2025; down 24 since FY2022.
81	Foxhole Technology LLC Top agencies DOT (Department of Transportation)	$8,210,962	0.3%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #90 in FY2025; new.
82	American Systems Corporation Top agencies DSCA (Defense Security Cooperation Agency)	$8,091,039	0.3%	Rank history: not on the FY2021 list, #61 in FY2022, not on the FY2024 list and #96 in FY2025; down 21 since FY2022.
83	Teamstaff Inc. Through Dlh, LLC Top agencies HHS (Department of Health and Human Services)	$7,996,093	0.3%	Rank history: not on the FY2021–FY2022 lists, #16 in FY2024 and #22 in FY2025; new.
84	A2 Labs, LLC Top agencies DHS (Department of Homeland Security)	$7,917,270	0.3%	Rank history: not on the FY2021 list, #67 in FY2022 and not on the FY2024–FY2025 lists; down 17 since FY2022.
85	BAE Systems PLC Through BAE Systems Technology Solutions & Services Inc. Top agencies DHS (Department of Homeland Security) DOL (Department of Labor)	$7,807,517	0.2%	Rank history: not on the FY2021 list, #57 in FY2022 and not on the FY2024–FY2025 lists; down 28 since FY2022.
86	Electrosoft Services Inc. Top agencies DLA (Defense Logistics Agency)	$7,798,693	0.2%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2024 and #68 in FY2025; new.
87	Favor Techconsulting, LLC Top agencies DHS (Department of Homeland Security)	$7,778,302	0.2%	Rank history: #40 in FY2021, #62 in FY2022 and not on the FY2024–FY2025 lists; down 25 since FY2022.
88	A1Fed Incorporated Top agencies DHS (Department of Homeland Security)	$7,718,003	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 32 since FY2022.
89	UnitedHealth Group Incorporated Through Optumserve Technology Services, Inc. Top agencies HHS (Department of Health and Human Services)	$7,618,309	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
90	Agile-Bot II LLC Top agencies HUD (Department of Housing and Urban Development)	$7,555,566	0.2%	Rank history: not on the FY2021 list, #55 in FY2022 and not on the FY2024–FY2025 lists; down 35 since FY2022.
91	Koniag, Inc. 4 awardees, including Tuknik Government Services LLC, Arlluk Technology Solutions LLC and Eagle Harbor Solutions LLC Top agencies Army (Department of the Army) USDA (Department of Agriculture) DOI (Department of the Interior)	$7,543,028	0.2%	Rank history: #38 in FY2021, #59 in FY2022, not on the FY2024 list and #62 in FY2025; down 32 since FY2022.
92	Cask Technologies, LLC Top agencies USDA (Department of Agriculture)	$7,488,870	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
93	LCG Systems LLC Top agencies HHS (Department of Health and Human Services)	$7,464,143	0.2%	Rank history: #39 in FY2021, #69 in FY2022 and not on the FY2024–FY2025 lists; down 24 since FY2022.
94	Dexteritech Solutions, LLC Top agencies VA (Department of Veterans Affairs)	$7,255,927	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
95	Veterans Engineering Incorporated Top agencies VA (Department of Veterans Affairs)	$7,226,979	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
96	Chenega Defense & Aerospace Solutions, LLC Top agencies Navy (Department of the Navy)	$7,224,141	0.2%	Rank history: not on the FY2021 list, #76 in FY2022 and not on the FY2024–FY2025 lists; down 20 since FY2022.
97	Spalding Consulting, Inc. Top agencies Navy (Department of the Navy)	$7,216,518	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 81 since FY2022.
98	Technica Corporation Top agencies DOJ (Department of Justice)	$7,063,844	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 143 since FY2022.
99	BNL Inc. Top agencies Commerce (Department of Commerce)	$7,012,474	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
100	Network Designs Inc Top agencies DOJ (Department of Justice)	$6,859,806	0.2%	Rank history: not on the FY2021–FY2022 lists, #66 in FY2024 and not on the FY2025 list; new.

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100 of 653 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 $3.14 billion obligated before deobligations, so they never pass 100%.
Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
Fiscal year 2023 ran Oct 1, 2022 – Sep 30, 2023. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
Rank changes compare with FY2022. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list. The step from FY2022 takes the color of the rank change beside it.
Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers

Who were the top 10 PSC DF01 contractors in FY2023?

1. Leidos Holdings, Inc. ($364M), 2. Booz Allen Hamilton Holding Corporation ($145M), 3. CACI International Inc. ($113M), 4. Accenture Inc. ($92.8M), 5. Govcio, LLC ($78.6M), 6. Deloitte LLP ($77.6M), 7. Science Applications International Corporation ($54.4M), 8. Criterion Systems, L.L.C. ($54.1M), 9. CGI Technologies and Solutions Inc. ($49.6M), 10. General Dynamics Corporation ($42M).

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