Top 100 Contractors in PSC DF: IT and Telecom – IT Management, FY2021

Name: Top 100 Contractors in PSC DF: IT and Telecom – IT Management, FY2021
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2020 – Sep 30, 2021 Code page on GovTribe

The top 10 won 33% of FY2021 PSC DF contract dollars

Contract obligations: $1,635,325,151 Net of deobligations, by contracts coded PSC DF or a code under it
Contractors: 672 Parent companies with an obligation
Largest contractor: Accenture Federal Services LLC $175 million, 10.5% 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	Accenture Federal Services LLC Top agencies HHS (Department of Health and Human Services) DOE (Department of Energy) DLA (Defense Logistics Agency)	$175,497,986	10.5%	Rank history: #3 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
2	Dell Federal Systems L.P. 2 awardees, including Dell Marketing L.P. Top agencies Army (Department of the Army) DISA (Defense Information Systems Agency) DCMA (Defense Contract Management Agency)	$64,715,749	3.9%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
3	Deloitte LLP 2 awardees, including Deloitte Consulting LLP and Deloitte & Touche LLP Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) Treasury (Department of the Treasury)	$58,364,719	3.5%	Rank history: #4 in FY2022, #5 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
4	Science Applications International Corporation 2 awardees Top agencies DHS (Department of Homeland Security) USDA (Department of Agriculture) HHS (Department of Health and Human Services)	$57,528,343	3.4%	Rank history: #6 in FY2022, #7 in FY2023, #8 in FY2024 and #7 in FY2025; new, not ranked in FY2020.
5	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security) DOL (Department of Labor)	$38,778,848	2.3%	Rank history: #2 in FY2022, #3 in FY2023, #4 in FY2024 and #4 in FY2025; new, not ranked in FY2020.
6	Northrop Grumman Corporation 3 awardees, including Northrop Grumman Systems Corporation Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) Treasury (Department of the Treasury)	$36,798,239	2.2%	Rank history: #18 in FY2022, #26 in FY2023, #34 in FY2024 and #52 in FY2025; new, not ranked in FY2020.
7	Rei Systems, Inc. Top agencies HHS (Department of Health and Human Services)	$35,661,079	2.1%	Rank history: #7 in FY2022, #11 in FY2023, #16 in FY2024 and #23 in FY2025; new, not ranked in FY2020.
8	Criterion Systems, L.L.C. Top agencies DOE (Department of Energy) USDA (Department of Agriculture)	$34,191,114	2.0%	Rank history: #14 in FY2022, #8 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
9	Arctic Slope Regional Corporation 3 awardees, including Asrc Federal Data Solutions, LLC, Asrc Federal System Solutions LLC and Asrc Federal Cyber, LLC Top agencies NASA (National Aeronautics and Space Administration) DOJ (Department of Justice)	$31,159,015	1.9%	Rank history: #15 in FY2022, #25 in FY2023, #12 in FY2024 and #12 in FY2025; new, not ranked in FY2020.
10	Motorola Inc Through Motorola Solutions, Inc. Top agencies DHS (Department of Homeland Security)	$26,962,642	1.6%	Rank history: not on the FY2022 list, #35 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
11	CACI International Inc. 3 awardees, including Caci, Inc. - Federal, Caci Enterprise Solutions, LLC and Caci Nss, LLC Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency) USDA (Department of Agriculture)	$22,693,762	1.4%	Rank history: #11 in FY2022, #4 in FY2023, #5 in FY2024 and #5 in FY2025; new, not ranked in FY2020.
12	Dlh, LLC Top agencies HHS (Department of Health and Human Services)	$21,501,519	1.3%	Rank history: #17 in FY2022, #31 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
13	HP Enterprise Services LLC 2 awardees, including Peraton Inc. Top agencies DOS (Department of State) Commerce (Department of Commerce) DISA (Defense Information Systems Agency)	$20,941,048	1.3%	Rank history: #9 in FY2022, #14 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
14	Bellese Technologies, LLC Top agencies HHS (Department of Health and Human Services)	$20,882,659	1.2%	Rank history: #20 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
15	Kbr, Inc. Through KBR Wyle Services, LLC Top agencies Commerce (Department of Commerce)	$17,803,088	1.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
16	Digital Management LLC Top agencies HHS (Department of Health and Human Services)	$17,751,417	1.1%	Rank history: #16 in FY2022, #19 in FY2023, #23 in FY2024 and #28 in FY2025; new, not ranked in FY2020.
17	General Dynamics Corporation 2 awardees, including General Dynamics Information Technology, Inc. Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice) USAF (Department of the Air Force)	$17,243,611	1.0%	Rank history: #13 in FY2022, #9 in FY2023, #9 in FY2024 and #13 in FY2025; new, not ranked in FY2020.
18	Advanced Technology Systems Inc. Through Salient Crgt, Inc. Top agencies DHS (Department of Homeland Security)	$16,890,976	1.0%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
19	Nimbus Consulting LLC Top agencies HHS (Department of Health and Human Services)	$16,776,949	1.0%	Rank history: not on the FY2022 list, #51 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
20	Semanticbits LLC Top agencies HHS (Department of Health and Human Services)	$15,799,149	0.9%	Rank history: #41 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
21	Microsoft Corporation Top agencies DHS (Department of Homeland Security) USSOCOM (United States Special Operations Command) DOS (Department of State)	$14,850,864	0.9%	Rank history: #23 in FY2022, #33 in FY2023, not on the FY2024 list and #27 in FY2025; new, not ranked in FY2020.
22	On Assignment, Inc. Through ECS Federal, LLC Top agencies DHS (Department of Homeland Security) Treasury (Department of the Treasury)	$14,690,463	0.9%	Rank history: #27 in FY2022, #20 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
23	Guidehouse Inc. Top agencies HHS (Department of Health and Human Services)	$13,512,969	0.8%	Rank history: #38 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
24	Thundercat Technology, LLC Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice) Commerce (Department of Commerce)	$13,012,750	0.8%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
25	D7, LLC Top agencies USUHS (DOD Uniformed Services University of the Health Sciences)	$11,802,560	0.7%	Rank history: #50 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
26	Alliance Data Systems Corporation Through Epsilon Inc. Top agencies DOE (Department of Energy)	$11,624,872	0.7%	Rank history: #32 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
27	Leidos Holdings, Inc. 3 awardees, including Leidos, Inc., 1901 Group, LLC and Leidos Digital Solutions Inc. Top agencies HHS (Department of Health and Human Services) SBA (Small Business Administration) Commerce (Department of Commerce)	$11,376,032	0.7%	Rank history: #1 in FY2022, #1 in FY2023, #2 in FY2024 and #2 in FY2025; new, not ranked in FY2020.
28	Asrc Federal Data Networx, LLC Top agencies USDA (Department of Agriculture) DISA (Defense Information Systems Agency)	$10,528,252	0.6%	Rank history: #47 in FY2022, #87 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
29	ICF International, Inc. Through ICF Incorporated, L.L.C. Top agencies HHS (Department of Health and Human Services)	$10,364,371	0.6%	Rank history: #57 in FY2022, #98 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
30	Blue TECH Inc. Top agencies DHS (Department of Homeland Security) DOS (Department of State) Commerce (Department of Commerce)	$10,350,541	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
31	Iron Mountain Incorporated Through Iron Mountain Information Management LLC Top agencies Commerce (Department of Commerce)	$10,297,721	0.6%	Rank history: #90 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
32	Accuity Asset Verification Services Inc. Top agencies SSA (Social Security Administration)	$10,211,755	0.6%	Rank history: #55 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
33	Creative It Solutions LLC Top agencies DISA (Defense Information Systems Agency) Navy (Department of the Navy) Army (Department of the Army)	$10,179,672	0.6%	Rank history: #45 in FY2022, #46 in FY2023, #45 in FY2024 and #72 in FY2025; new, not ranked in FY2020.
34	Scientific Research Corporation Top agencies Navy (Department of the Navy)	$10,154,760	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
35	Nana Regional Corporation Inc 2 awardees, including Affigent, LLC and Cloud Lake Technology LLC Top agencies USAF (Department of the Air Force) DOJ (Department of Justice) Army (Department of the Army)	$10,122,133	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
36	Johnson Controls Security Solutions LLC 2 awardees, including Johnson Controls Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$10,002,872	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
37	Credence Management Solutions Limited Liability Company Top agencies DLA (Defense Logistics Agency)	$9,807,464	0.6%	Rank history: #24 in FY2022, #23 in FY2023, #24 in FY2024 and #18 in FY2025; new, not ranked in FY2020.
38	PBG Consulting, LLC Top agencies OPM (Office of Personnel Management)	$9,802,167	0.6%	Rank history: #48 in FY2022, #61 in FY2023, #39 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
39	Softrams LLC Top agencies HHS (Department of Health and Human Services)	$9,589,555	0.6%	Rank history: #53 in FY2022, #71 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
40	Trace Systems Holdings Inc. Through Trace Systems, Inc. Top agencies USAF (Department of the Air Force)	$8,900,000	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
41	Idera, Inc. Through Precise Software Solutions, Inc. Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice)	$8,725,195	0.5%	Rank history: #34 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
42	Innovative Management Concepts, Inc. Top agencies USAF (Department of the Air Force)	$8,582,141	0.5%	Rank history: #83 in FY2022, #55 in FY2023, not on the FY2024 list and #94 in FY2025; new, not ranked in FY2020.
43	SHR Consulting Group LLC Top agencies DHS (Department of Homeland Security)	$8,281,764	0.5%	Rank history: #62 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
44	Lintech Global Inc. Top agencies DODIG (Department of Defense Inspector General) EPA (Environmental Protection Agency)	$8,276,271	0.5%	Rank history: #40 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
45	Dignari, LLC Top agencies DHS (Department of Homeland Security)	$7,708,868	0.5%	Rank history: #93 in FY2022, #24 in FY2023, #14 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
46	Halvik LLC Top agencies Army (Department of the Army) DOT (Department of Transportation)	$7,370,564	0.4%	Rank history: #82 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
47	ACE Info Solutions LLC Through Guidehouse Digital LLC Top agencies USDA (Department of Agriculture)	$7,337,863	0.4%	Rank history: not on the FY2022 list, #38 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
48	Tyler Federal, LLC Top agencies DOS (Department of State) Commerce (Department of Commerce) ED (Department of Education)	$7,315,616	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
49	Flexion Inc. Top agencies HHS (Department of Health and Human Services) GSA (General Services Administration)	$7,302,131	0.4%	Rank history: #91 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
50	Fcn, Inc. Top agencies DOS (Department of State) SEC (Securities and Exchange Commission) DISA (Defense Information Systems Agency)	$7,139,960	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
51	VET Advisor LLC Through Three Wire Systems, LLC Top agencies VA (Department of Veterans Affairs) Commerce (Department of Commerce)	$7,119,199	0.4%	Rank history: #39 in FY2022, #47 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
52	Nexgen Technologies Inc. Top agencies DOI (Department of the Interior)	$7,028,450	0.4%	Rank history: #36 in FY2022, #54 in FY2023, #77 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
53	The Tatitlek Corporation Through Tatitlek Federal Services LLC Top agencies Treasury (Department of the Treasury)	$7,019,597	0.4%	Rank history: #46 in FY2022, #72 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
54	Koniag, Inc. 4 awardees, including Tuknik Government Services LLC, Arlluk Technology Solutions LLC and Eagle Harbor Solutions LLC Top agencies USDA (Department of Agriculture) Army (Department of the Army) DOS (Department of State)	$6,684,934	0.4%	Rank history: #75 in FY2022, #67 in FY2023, not on the FY2024 list and #70 in FY2025; new, not ranked in FY2020.
55	LCG Systems LLC Top agencies HHS (Department of Health and Human Services)	$6,676,795	0.4%	Rank history: #88 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
56	Favor Techconsulting, LLC Top agencies DHS (Department of Homeland Security)	$6,592,109	0.4%	Rank history: #80 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
57	Trident Technologies, LLC Top agencies Army (Department of the Army)	$6,416,625	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
58	Berry Technology Solutions, LLC Top agencies HHS (Department of Health and Human Services)	$6,382,751	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
59	Amar Health IT, LLC Top agencies DISA (Defense Information Systems Agency)	$6,289,141	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
60	Bnl, Inc. Top agencies Commerce (Department of Commerce)	$6,052,669	0.4%	Rank history: #68 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
61	Nationwide It Services Inc. Top agencies DOI (Department of the Interior) HHS (Department of Health and Human Services)	$6,000,850	0.4%	Rank history: not on the FY2022 list, #37 in FY2023, #29 in FY2024 and #32 in FY2025; new, not ranked in FY2020.
62	York Telecom Corporation Through Kinly US Corporation Top agencies SSA (Social Security Administration)	$5,982,676	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
63	Truetandem, LLC Top agencies HHS (Department of Health and Human Services) Treasury (Department of the Treasury)	$5,938,083	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
64	Amyx Inc. Top agencies DLA (Defense Logistics Agency)	$5,778,807	0.3%	Rank history: #74 in FY2022, #65 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
65	Asrc Federal System Solutions LLC Top agencies NASA (National Aeronautics and Space Administration)	$5,703,203	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
66	Kapsuun Group, LLC Top agencies Navy (Department of the Navy)	$5,475,775	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
67	Riva Solutions Inc. Top agencies HHS (Department of Health and Human Services)	$5,417,282	0.3%	Rank history: #58 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
68	Veterans EZ Info Inc. Top agencies USDA (Department of Agriculture) VA (Department of Veterans Affairs)	$5,354,413	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
69	Carahsoft Technology Corp Top agencies USDA (Department of Agriculture) DISA (Defense Information Systems Agency) DOJ (Department of Justice)	$5,309,992	0.3%	Rank history: #77 in FY2022, #49 in FY2023, #54 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
70	Dynamo Technologies, LLC Top agencies USDA (Department of Agriculture)	$5,282,958	0.3%	Rank history: #59 in FY2022, #41 in FY2023, #44 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
71	Directviz Solutions, LLC Top agencies Army (Department of the Army)	$5,068,884	0.3%	Rank history: #52 in FY2022, #74 in FY2023, #92 in FY2024 and #99 in FY2025; new, not ranked in FY2020.
72	Teksynap Corporation Top agencies NRC (Nuclear Regulatory Commission) DLA (Defense Logistics Agency)	$5,020,262	0.3%	Rank history: #43 in FY2022, #30 in FY2023, #58 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
73	Dataminr, Inc. Top agencies DOS (Department of State)	$4,962,500	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
74	Compass Point LLC Top agencies DOJ (Department of Justice)	$4,811,885	0.3%	Rank history: #28 in FY2022, #18 in FY2023, #20 in FY2024 and #25 in FY2025; new, not ranked in FY2020.
75	Futron, Inc. Top agencies HHS (Department of Health and Human Services)	$4,763,087	0.3%	Rank history: #81 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
76	Sapient Corporation Through Onpoint Consulting, Inc. Top agencies HHS (Department of Health and Human Services)	$4,732,782	0.3%	Rank history: not on the FY2022 list, #79 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
77	International Business Machines Corporation 2 awardees Top agencies SSA (Social Security Administration) DISA (Defense Information Systems Agency) USDA (Department of Agriculture)	$4,668,983	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
78	Astor & Sanders Corporation Top agencies DOL (Department of Labor) DOI (Department of the Interior)	$4,659,230	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
79	Metgreen Solutions Inc. Top agencies Treasury (Department of the Treasury) DFC (International Development Finance Corporation) NASA (National Aeronautics and Space Administration)	$4,594,094	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
80	Gartner, Inc. 2 awardees, including Personnel Decisions Research Institutes, LLC Top agencies OPM (Office of Personnel Management) DOE (Department of Energy) DOL (Department of Labor)	$4,577,900	0.3%	Rank history: #67 in FY2022, #85 in FY2023, #84 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
81	Impres Technology Solutions, Inc. Top agencies DOL (Department of Labor) DHS (Department of Homeland Security)	$4,554,412	0.3%	Rank history: #69 in FY2022, #53 in FY2023, #74 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
82	Trigent Solutions Inc. Top agencies SBA (Small Business Administration)	$4,500,000	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
83	Esimplicity Inc. Top agencies HHS (Department of Health and Human Services)	$4,499,834	0.3%	Rank history: #35 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
84	Red River Technology LLC Top agencies Commerce (Department of Commerce) DOT (Department of Transportation)	$4,487,384	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
85	Nippon Telegraph and Telephone Corporation Through NTT Data Federal Services, Inc. Top agencies DOJ (Department of Justice)	$4,353,142	0.3%	Rank history: #49 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
86	Agile Defense, LLC Top agencies Army (Department of the Army)	$4,143,806	0.2%	Rank history: #30 in FY2022, #40 in FY2023, not on the FY2024 list and #39 in FY2025; new, not ranked in FY2020.
87	Spatial Front Inc. Top agencies DOT (Department of Transportation) HUD (Department of Housing and Urban Development)	$4,131,578	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
88	Fedscale Inc. Top agencies USDA (Department of Agriculture)	$4,129,175	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
89	A-Tek, Inc. Through Mackson Consulting, LLC Top agencies HHS (Department of Health and Human Services)	$4,107,151	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
90	Software Information Resource Corp. Top agencies Army (Department of the Army) DOJ (Department of Justice) DOS (Department of State)	$4,103,887	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
91	Garud Technology Services, Inc. Top agencies DHS (Department of Homeland Security)	$3,986,384	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
92	Codemettle, LLC Top agencies Army (Department of the Army)	$3,891,173	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
93	Acumen Solutions, Inc. Top agencies USDA (Department of Agriculture) EOP (Executive Office of the President)	$3,767,310	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
94	Aurotech LLC Top agencies HHS (Department of Health and Human Services)	$3,703,954	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
95	Revacomm Inc. Top agencies USAF (Department of the Air Force)	$3,666,888	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
96	SRA International Inc. Through General Dynamics Information Technology, Inc. Top agencies HHS (Department of Health and Human Services) Army (Department of the Army)	$3,634,241	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
97	Sysorex Government Services Inc. Top agencies DOJ (Department of Justice)	$3,611,701	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
98	Seneca Global Services LLC Top agencies Army (Department of the Army)	$3,574,347	0.2%	Rank history: #89 in FY2022, #95 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
99	Coggins International Corp Top agencies DLA (Defense Logistics Agency)	$3,513,175	0.2%	Rank history: not on the FY2022–FY2024 lists and #96 in FY2025; new, not ranked in FY2020.
100	Veteran Information Technologies, LLC Top agencies USAF (Department of the Air Force) DOL (Department of Labor)	$3,509,408	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.

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100 of 672 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC DF

Code	Net obligations	Largest contractor
DF01 IT and Telecom – IT Management Support Services (Labor)	$1,152,058,502	Accenture Federal Services LLC
DF10 IT and Telecom – IT Management as a Service	$483,266,649	Dell Federal Systems L.P.

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 $1.67 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 2021 ran Oct 1, 2020 – Sep 30, 2021. 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 FY2020. "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 FY2020 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 DF contractors in FY2021?

1. Accenture Federal Services LLC ($175M), 2. Dell Federal Systems L.P. ($64.7M), 3. Deloitte LLP ($58.4M), 4. Science Applications International Corporation ($57.5M), 5. Booz Allen Hamilton Holding Corporation ($38.8M), 6. Northrop Grumman Corporation ($36.8M), 7. Rei Systems, Inc. ($35.7M), 8. Criterion Systems, L.L.C. ($34.2M), 9. Arctic Slope Regional Corporation ($31.2M), 10. Motorola Inc ($27M).

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