Top 100 Contractors in PSC D3: Automatic Data Processing and Telecommunications, FY2021

Name: Top 100 Contractors in PSC D3: Automatic Data Processing and Telecommunications, FY2021
Creator: GovTribe

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

The top 10 won 29% of FY2021 PSC D3 contract dollars

Contract obligations: $32,308,084,988 Net of deobligations, by contracts coded PSC D3 or a code under it
Contractors: 4,307 Parent companies with an obligation
Largest contractor: General Dynamics Corporation $1.57 billion, 4.5% 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	General Dynamics Corporation 21 awardees, including General Dynamics Information Technology, Inc., Csra LLC and General Dynamics One Source LLC Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) DHS (Department of Homeland Security)	$1,570,261,043	4.5%	Rank history: #1 in FY2022, #1 in FY2023, #1 in FY2024 and #4 in FY2025; unchanged since FY2020.
2	Leidos Holdings, Inc. 22 awardees, including Leidos, Inc. and Leidos SMS Inc. Top agencies DISA (Defense Information Systems Agency) HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$1,528,973,493	4.3%	Rank history: #2 in FY2022, #6 in FY2023, #4 in FY2024 and #5 in FY2025; unchanged since FY2020.
3	Booz Allen Hamilton Holding Corporation 7 awardees, including Booz Allen Hamilton Inc., Liberty It Solutions LLC and Middle Bay Solutions II, LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$1,295,499,820	3.7%	Rank history: #4 in FY2022, #2 in FY2023, #3 in FY2024 and #8 in FY2025; up 1 since FY2020.
4	CACI International Inc. 15 awardees, including Caci, Inc. - Federal, Caci-Iss, LLC and Caci Nss, LLC Top agencies Army (Department of the Army) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$1,184,827,132	3.4%	Rank history: #3 in FY2022, #3 in FY2023, #9 in FY2024 and #10 in FY2025; up 4 since FY2020.
5	Accenture Federal Services LLC 6 awardees, including ASM Research, LLC, Accenture LLP and Phase One Consulting Group, LLC Top agencies DOE (Department of Energy) DOS (Department of State) DHS (Department of Homeland Security)	$1,145,546,834	3.2%	Rank history: #5 in FY2022, #42 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
6	Science Applications International Corporation 7 awardees, including Halfaker and Associates, LLC and Engility Services, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) DHS (Department of Homeland Security)	$946,040,428	2.7%	Rank history: #7 in FY2022, #7 in FY2023, #7 in FY2024 and #7 in FY2025; up 4 since FY2020.
7	Dell Federal Systems L.P. 6 awardees, including Dell Marketing L.P. and Pivotal Software, Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) Treasury (Department of the Treasury)	$843,450,319	2.4%	Rank history: #36 in FY2022, #67 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
8	Northrop Grumman Corporation 12 awardees, including Northrop Grumman Systems Corporation Top agencies SSA (Social Security Administration) DOS (Department of State) Army (Department of the Army)	$672,667,825	1.9%	Rank history: #39 in FY2022, not on the FY2023 list, #99 in FY2024 and not on the FY2025 list; up 4 since FY2020.
9	CGI Technologies and Solutions Inc. 2 awardees, including CGI Federal Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$596,190,571	1.7%	Rank history: #8 in FY2022, #12 in FY2023, #14 in FY2024 and not on the FY2025 list; up 4 since FY2020.
10	Cerner Corporation 3 awardees, including Oracle Health Government Services, Inc. and Cerner Federal Solutions LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$510,049,657	1.4%	Rank history: #11 in FY2022 and not on the FY2023–FY2025 lists; down 1 since FY2020.
11	Deloitte LLP 5 awardees, including Deloitte Consulting LLP, Deloitte & Touche LLP and Deloitte Financial Advisory Services LLP Top agencies HHS (Department of Health and Human Services) DCSA (Defense Counterintelligence and Security Agency) DHS (Department of Homeland Security)	$507,818,508	1.4%	Rank history: #20 in FY2022, #27 in FY2023 and not on the FY2024–FY2025 lists; up 11 since FY2020.
12	At&T Inc. 43 awardees, including At&T Enterprises, LLC, Att Mobility LLC and At&T Mobility National Accounts LLC Top agencies VA (Department of Veterans Affairs) Treasury (Department of the Treasury) DOJ (Department of Justice)	$467,737,012	1.3%	Rank history: #12 in FY2022, #8 in FY2023, #5 in FY2024 and #2 in FY2025; down 1 since FY2020.
13	Perspecta Inc. 6 awardees, including Peraton Enterprise Solutions LLC, Knight Point Systems, LLC and Peraton Technology Services Inc. Top agencies HHS (Department of Health and Human Services) DOS (Department of State) USAF (Department of the Air Force)	$442,414,416	1.3%	Rank history: not on the FY2022–FY2025 lists; down 10 since FY2020.
14	HP Enterprise Services LLC 13 awardees, including Peraton Inc., Peraton Enterprise Solutions LLC and Peraton Government Communications Inc. Top agencies NASA (National Aeronautics and Space Administration) HHS (Department of Health and Human Services) DHRA (Defense Human Resources Activity)	$433,519,254	1.2%	Rank history: #6 in FY2022, #4 in FY2023, #13 in FY2024 and not on the FY2025 list; up 19 since FY2020.
15	International Business Machines Corporation 8 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy) DHS (Department of Homeland Security)	$431,440,428	1.2%	Rank history: #27 in FY2022, #39 in FY2023, #29 in FY2024 and #35 in FY2025; up 1 since FY2020.
16	L3Harris Technologies, Inc. 17 awardees, including Harris Corporation, L3Harris Technologies Integrated Systems L.P. and L3Harris Forcex, Inc. Top agencies Commerce (Department of Commerce) DOT (Department of Transportation) Army (Department of the Army)	$428,964,757	1.2%	Rank history: #13 in FY2022, #13 in FY2023, #12 in FY2024 and #16 in FY2025; up 5 since FY2020.
17	RTX Corporation 19 awardees, including Raytheon Company, Arinc Incorporated and RTX BBN Technologies, Inc. Top agencies Commerce (Department of Commerce) USAF (Department of the Air Force) DOT (Department of Transportation)	$399,966,175	1.1%	Rank history: #21 in FY2022, #71 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2020.
18	Jacobs Engineering Group Inc. 8 awardees, including Amentum Technology, Inc., The Keyw Corporation and Sotera Defense Solutions, Inc. Top agencies USSOCOM (United States Special Operations Command) USAF (Department of the Air Force) ED (Department of Education)	$366,035,319	1.0%	Rank history: #16 in FY2022, #15 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
19	Verizon Communications Inc. 21 awardees, including Verizon Business Network Services LLC, Cellco Partnership and Verizon Federal Inc. Top agencies HHS (Department of Health and Human Services) Treasury (Department of the Treasury) SSA (Social Security Administration)	$279,262,479	0.8%	Rank history: #10 in FY2022, #9 in FY2023 and not on the FY2024–FY2025 lists; down 12 since FY2020.
20	Carahsoft Technology Corp Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$233,641,589	0.7%	Rank history: #34 in FY2022, #72 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2020.
21	Maximus Inc. 7 awardees, including Maximus Federal Services, Inc., Maximus Federal Technology Solutions, LLC and Insysco, Inc. Top agencies Treasury (Department of the Treasury) HHS (Department of Health and Human Services) Commerce (Department of Commerce)	$223,385,259	0.6%	Rank history: #24 in FY2022, #45 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
22	Govcio, LLC Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security) DOL (Department of Labor)	$218,789,843	0.6%	Rank history: #17 in FY2022, #41 in FY2023 and not on the FY2024–FY2025 lists; up 39 since FY2020.
23	Lockheed Martin Corporation 8 awardees Top agencies MDA (DOD Missile Defense Agency) USAF (Department of the Air Force) Army (Department of the Army)	$210,842,326	0.6%	Rank history: #22 in FY2022, #19 in FY2023, #32 in FY2024 and not on the FY2025 list; up 20 since FY2020.
24	Mantech International Corporation 8 awardees, including Mantech Advanced Systems International, Inc., Infozen, LLC and Mantech Information Systems & Technology Corporation Top agencies DHS (Department of Homeland Security) Army (Department of the Army) DHA (Defense Health Agency)	$210,466,150	0.6%	Rank history: #48 in FY2022, #16 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
25	Iridium Satellite LLC 2 awardees, including Iridium Government Services LLC Top agencies DISA (Defense Information Systems Agency)	$207,001,639	0.6%	Rank history: #49 in FY2022, #17 in FY2023 and not on the FY2024–FY2025 lists; up 339 since FY2020.
26	Four Points Technology, L.L.C. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$181,395,127	0.5%	Rank history: #50 in FY2022, #74 in FY2023, not on the FY2024 list and #49 in FY2025; up 6 since FY2020.
27	SRA International Inc. 2 awardees, including General Dynamics Information Technology, Inc. Top agencies HHS (Department of Health and Human Services) EPA (Environmental Protection Agency) Navy (Department of the Navy)	$169,523,390	0.5%	Rank history: #99 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
28	V3Gate, LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$169,478,017	0.5%	Rank history: #18 in FY2022, not on the FY2023 list, #77 in FY2024 and #71 in FY2025; up 25 since FY2020.
29	By Light Professional It Services LLC 4 awardees, including Phacil, LLC and Metova Federal, LLC Top agencies DISA (Defense Information Systems Agency) VA (Department of Veterans Affairs) Army (Department of the Army)	$156,828,346	0.4%	Rank history: #37 in FY2022, #32 in FY2023, #23 in FY2024 and #15 in FY2025; up 7 since FY2020.
30	Lumen Technologies, Inc. 33 awardees, including Lumen Technologies Government Solutions, Inc., United Telephone Company of the Northwest and Savvis Federal Systems Inc. Top agencies VA (Department of Veterans Affairs) DOI (Department of the Interior) SSA (Social Security Administration)	$155,549,086	0.4%	Rank history: not on the FY2022 list, #14 in FY2023, #18 in FY2024 and #89 in FY2025; down 16 since FY2020.
31	Smartronix LLC Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs) DOI (Department of the Interior)	$155,474,791	0.4%	Rank history: #32 in FY2022, #30 in FY2023, #25 in FY2024 and #21 in FY2025; up 25 since FY2020.
32	Advanced Technology Systems Inc. 7 awardees, including Salient Federal Solutions, Inc., Salient Crgt, Inc. and Salient Federal-Sgis Inc. Top agencies Army (Department of the Army) GAO (Government Accountability Office) DHS (Department of Homeland Security)	$142,168,076	0.4%	Rank history: not on the FY2022 list, #26 in FY2023, #35 in FY2024 and not on the FY2025 list; up 2 since FY2020.
33	Liberty It Solutions LLC Top agencies VA (Department of Veterans Affairs)	$139,239,632	0.4%	Rank history: #79 in FY2022, #38 in FY2023 and not on the FY2024–FY2025 lists; up 9 since FY2020.
34	Octo Consulting Group Inc. 2 awardees, including Sevatec LLC Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services) GSA (General Services Administration)	$138,900,865	0.4%	Rank history: #15 in FY2022, #11 in FY2023, #30 in FY2024 and #84 in FY2025; up 116 since FY2020.
35	Tista Science and Technology Corporation Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) Treasury (Department of the Treasury)	$137,907,144	0.4%	Rank history: #25 in FY2022, #20 in FY2023, #42 in FY2024 and not on the FY2025 list; unchanged since FY2020.
36	Nippon Telegraph and Telephone Corporation 7 awardees, including NTT Data Federal Services, Inc., NTT Data Services Federal Government, LLC and NTT Docomo, Inc. Top agencies DOJ (Department of Justice) HHS (Department of Health and Human Services) Navy (Department of the Navy)	$137,561,356	0.4%	Rank history: #41 in FY2022, #43 in FY2023 and not on the FY2024–FY2025 lists; up 21 since FY2020.
37	Nana Regional Corporation Inc 12 awardees, including Affigent, LLC, Qivliq Commercial Group LLC and Rivertech LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) DOJ (Department of Justice)	$133,473,286	0.4%	Rank history: #64 in FY2022 and not on the FY2023–FY2025 lists; down 8 since FY2020.
38	All Points Logistics, LLC Top agencies VA (Department of Veterans Affairs) NASA (National Aeronautics and Space Administration) DISA (Defense Information Systems Agency)	$131,837,313	0.4%	Rank history: #28 in FY2022 and not on the FY2023–FY2025 lists; up 17 since FY2020.
39	Ventech Solutions Inc. 2 awardees Top agencies HHS (Department of Health and Human Services) USAF (Department of the Air Force) DHA (Defense Health Agency)	$128,797,174	0.4%	Rank history: #26 in FY2022, #61 in FY2023 and not on the FY2024–FY2025 lists; up 20 since FY2020.
40	B 3 Group, LLC Top agencies VA (Department of Veterans Affairs)	$126,404,399	0.4%	Rank history: not on the FY2022–FY2023 lists, #15 in FY2024 and not on the FY2025 list; up 45 since FY2020.
41	Mythics, LLC 2 awardees, including Emergent, LLC Top agencies VA (Department of Veterans Affairs) DHRA (Defense Human Resources Activity) Treasury (Department of the Treasury)	$125,318,691	0.4%	Rank history: #30 in FY2022, #64 in FY2023 and not on the FY2024–FY2025 lists; up 11 since FY2020.
42	ICF International, Inc. 3 awardees, including Incentive Technology Group LLC and ICF Incorporated, L.L.C. Top agencies HHS (Department of Health and Human Services) FCC (Federal Communications Commission) GSA (General Services Administration)	$124,925,860	0.4%	Rank history: #45 in FY2022, #54 in FY2023 and not on the FY2024–FY2025 lists; up 53 since FY2020.
43	Semanticbits LLC Top agencies HHS (Department of Health and Human Services) NRC (Nuclear Regulatory Commission)	$124,277,918	0.4%	Rank history: #35 in FY2022, #24 in FY2023, #20 in FY2024 and #63 in FY2025; up 54 since FY2020.
44	On Assignment, Inc. 4 awardees, including ECS Federal, LLC and Indrasoft Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) Navy (Department of the Navy)	$123,514,836	0.4%	Rank history: #33 in FY2022, #33 in FY2023 and not on the FY2024–FY2025 lists; up 16 since FY2020.
45	Viasat Inc. 2 awardees, including Rignet, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$111,058,068	0.3%	Rank history: #31 in FY2022, #21 in FY2023, #19 in FY2024 and #17 in FY2025; up 23 since FY2020.
46	Fcn, Inc. Top agencies Treasury (Department of the Treasury) USAF (Department of the Air Force) DISA (Defense Information Systems Agency)	$102,137,133	0.3%	Rank history: #51 in FY2022 and not on the FY2023–FY2025 lists; down 6 since FY2020.
47	Unisys Corporation Top agencies DOJ (Department of Justice) DOT (Department of Transportation) GSA (General Services Administration)	$98,536,067	0.3%	Rank history: not on the FY2022–FY2025 lists; down 23 since FY2020.
48	Medical Science & Computing, LLC Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$96,522,833	0.3%	Rank history: #91 in FY2022 and not on the FY2023–FY2025 lists; up 45 since FY2020.
49	Red River Technology LLC 2 awardees, including Distributed Technology Group LLC Top agencies VA (Department of Veterans Affairs) DISA (Defense Information Systems Agency) Treasury (Department of the Treasury)	$95,167,519	0.3%	Rank history: #42 in FY2022, #29 in FY2023, #26 in FY2024 and not on the FY2025 list; up 15 since FY2020.
50	Halfaker and Associates, LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$93,279,773	0.3%	Rank history: not on the FY2022–FY2025 lists; down 6 since FY2020.
51	Goldschmitt-Cri LLC Top agencies SBA (Small Business Administration)	$89,795,448	0.3%	Rank history: not on the FY2022–FY2025 lists; up 29 since FY2020.
52	Koniag, Inc. 8 awardees, including Eagle Harbor Solutions LLC, Koniag Information Security Services LLC and Tuknik Government Services LLC Top agencies DOS (Department of State) USDA (Department of Agriculture) HHS (Department of Health and Human Services)	$88,074,658	0.2%	Rank history: #72 in FY2022, #63 in FY2023, not on the FY2024 list and #58 in FY2025; up 18 since FY2020.
53	Maximus Federal Technology Solutions, LLC Top agencies DHS (Department of Homeland Security) SEC (Securities and Exchange Commission) Army (Department of the Army)	$87,699,760	0.2%	Rank history: not on the FY2022–FY2025 lists; down 2 since FY2020.
54	Arctic Slope Regional Corporation 9 awardees, including Netcentric Technology, LLC, Inuteq, LLC and Data Networks, Inc. Top agencies DOS (Department of State) NASA (National Aeronautics and Space Administration) DOL (Department of Labor)	$87,563,140	0.2%	Rank history: #78 in FY2022, #50 in FY2023, #93 in FY2024 and #85 in FY2025; down 8 since FY2020.
55	ACE Info Solutions LLC 2 awardees, including Guidehouse Digital LLC and Dovel Technologies LLC Top agencies DHS (Department of Homeland Security) USDA (Department of Agriculture) Commerce (Department of Commerce)	$86,376,621	0.2%	Rank history: not on the FY2022 list, #31 in FY2023, #76 in FY2024 and not on the FY2025 list; up 58 since FY2020.
56	Agile Defense, LLC Top agencies Army (Department of the Army) DARPA (Defense Advanced Research Projects Agency) Navy (Department of the Navy)	$83,952,066	0.2%	Rank history: #90 in FY2022, #98 in FY2023, not on the FY2024 list and #36 in FY2025; up 11 since FY2020.
57	Kbr, Inc. 5 awardees, including KBR Wyle Services, LLC Top agencies Navy (Department of the Navy) DOT (Department of Transportation) Army (Department of the Army)	$83,096,571	0.2%	Rank history: #75 in FY2022, #48 in FY2023 and not on the FY2024–FY2025 lists; up 25 since FY2020.
58	Thundercat Technology, LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) NASA (National Aeronautics and Space Administration)	$82,698,309	0.2%	Rank history: not on the FY2022–FY2025 lists; down 10 since FY2020.
59	Blue Cross & Blue Shield of South Carolina 3 awardees, including Companion Data Services LLC and Palmetto Gba, LLC Top agencies HHS (Department of Health and Human Services)	$81,042,677	0.2%	Rank history: #57 in FY2022, #49 in FY2023 and not on the FY2024–FY2025 lists; up 19 since FY2020.
60	SMS Data Products Group Inc. Top agencies USAF (Department of the Air Force)	$78,631,285	0.2%	Rank history: #70 in FY2022 and not on the FY2023–FY2025 lists; up 41 since FY2020.
61	Dev Technology Group Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$77,572,111	0.2%	Rank history: #69 in FY2022, #25 in FY2023, #31 in FY2024 and not on the FY2025 list; up 14 since FY2020.
62	22Nd Century Technologies, Inc. Top agencies Commerce (Department of Commerce) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$75,677,870	0.2%	Rank history: #40 in FY2022, #65 in FY2023, not on the FY2024 list and #62 in FY2025; up 21 since FY2020.
63	SES Government Solutions Inc. Through SES Space & Defense, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$74,437,178	0.2%	Rank history: #96 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
64	Tetra Tech, Inc. 6 awardees, including Segue Technologies, Inc., Bluewater Federal Solutions, Inc. and Global TECH Inc. Top agencies USAF (Department of the Air Force) DISA (Defense Information Systems Agency) DHA (Defense Health Agency)	$73,165,582	0.2%	Rank history: #44 in FY2022, #34 in FY2023, not on the FY2024 list and #95 in FY2025; up 230 since FY2020.
65	Alamo City Engineering Services, Inc. Top agencies DLA (Defense Logistics Agency) SSA (Social Security Administration) VA (Department of Veterans Affairs)	$72,219,770	0.2%	Rank history: #47 in FY2022 and not on the FY2023–FY2025 lists; up 110 since FY2020.
66	Directviz Solutions, LLC Top agencies DOS (Department of State) Army (Department of the Army) USDA (Department of Agriculture)	$70,735,305	0.2%	Rank history: not on the FY2022 list, #75 in FY2023, #43 in FY2024 and #25 in FY2025; up 70 since FY2020.
67	Telos Corporation Top agencies USAF (Department of the Air Force) DISA (Defense Information Systems Agency) DOJ (Department of Justice)	$68,487,811	0.2%	Rank history: #68 in FY2022 and not on the FY2023–FY2025 lists; up 21 since FY2020.
68	Favor Techconsulting, LLC Top agencies VA (Department of Veterans Affairs) DOL (Department of Labor) USAF (Department of the Air Force)	$67,339,458	0.2%	Rank history: #63 in FY2022, #55 in FY2023 and not on the FY2024–FY2025 lists; up 37 since FY2020.
69	Amentum Services, Inc. 2 awardees, including Dyncorp International LLC Top agencies DOS (Department of State) USAF (Department of the Air Force) Army (Department of the Army)	$67,229,271	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
70	Newwave Telecom and Technologies, Inc. Top agencies HHS (Department of Health and Human Services)	$65,500,407	0.2%	Rank history: #98 in FY2022 and not on the FY2023–FY2025 lists; up 24 since FY2020.
71	Planned Systems International Inc. 2 awardees Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$65,195,516	0.2%	Rank history: #65 in FY2022, #51 in FY2023, #68 in FY2024 and not on the FY2025 list; up 81 since FY2020.
72	Customer Value Partners, LLC Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) DOI (Department of the Interior)	$63,756,558	0.2%	Rank history: not on the FY2022–FY2025 lists; up 46 since FY2020.
73	Teksynap Corporation Top agencies DTRA (Defense Threat Reduction Agency) DLA (Defense Logistics Agency) NRC (Nuclear Regulatory Commission)	$63,433,707	0.2%	Rank history: #46 in FY2022, #70 in FY2023, #66 in FY2024 and #37 in FY2025; up 42 since FY2020.
74	Core4Ce LLC Through Spinvi Consulting LLC Top agencies Navy (Department of the Navy)	$62,960,936	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
75	Goldbelt, Incorporated 8 awardees, including Nisga'a Tek, LLC, Goldbelt Hawk L.L.C. and Nisga'a Data Systems LLC Top agencies USAF (Department of the Air Force) DOI (Department of the Interior) Army (Department of the Army)	$62,749,757	0.2%	Rank history: not on the FY2022–FY2025 lists; up 117 since FY2020.
76	Microsoft Corporation Top agencies Army (Department of the Army) DHS (Department of Homeland Security) DISA (Defense Information Systems Agency)	$62,365,296	0.2%	Rank history: #84 in FY2022 and not on the FY2023–FY2025 lists; down 38 since FY2020.
77	Alethix, LLC Top agencies DHS (Department of Homeland Security) USDA (Department of Agriculture) USAF (Department of the Air Force)	$60,741,554	0.2%	Rank history: #59 in FY2022 and not on the FY2023–FY2025 lists; up 138 since FY2020.
78	Stratos Government Services, Inc. Through Inmarsat Government, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$60,094,268	0.2%	Rank history: #66 in FY2022 and not on the FY2023–FY2025 lists; down 20 since FY2020.
79	Sewp Solutions LLC Top agencies Army (Department of the Army) HHS (Department of Health and Human Services)	$59,941,978	0.2%	Rank history: not on the FY2022–FY2025 lists; up 97 since FY2020.
80	Peckham Vocational Industries, Inc. Top agencies DOS (Department of State) HHS (Department of Health and Human Services)	$59,447,892	0.2%	Rank history: #61 in FY2022, #18 in FY2023, #16 in FY2024 and not on the FY2025 list; up 29 since FY2020.
81	Alvarez LLC Top agencies VA (Department of Veterans Affairs) DOE (Department of Energy) DISA (Defense Information Systems Agency)	$58,190,852	0.2%	Rank history: not on the FY2022–FY2025 lists; up 5 since FY2020.
82	Anthem Inc. Through Wellpoint Federal Solutions, Inc. Top agencies HHS (Department of Health and Human Services)	$58,079,426	0.2%	Rank history: #53 in FY2022, #28 in FY2023, #36 in FY2024 and #19 in FY2025; new, not ranked in FY2020.
83	Advanced Alliant Solutions Team, Limited Partnership Top agencies Navy (Department of the Navy) Army (Department of the Army) DISA (Defense Information Systems Agency)	$57,973,650	0.2%	Rank history: #89 in FY2022 and not on the FY2023–FY2025 lists; up 43 since FY2020.
84	Softrams LLC Top agencies HHS (Department of Health and Human Services)	$57,226,095	0.2%	Rank history: #60 in FY2022, #60 in FY2023 and not on the FY2024–FY2025 lists; up 64 since FY2020.
85	Abacus Technology Corporation Top agencies USAF (Department of the Air Force) Army (Department of the Army) OSD (Office of the Secretary of Defense)	$57,219,686	0.2%	Rank history: #76 in FY2022, #52 in FY2023, #47 in FY2024 and not on the FY2025 list; up 103 since FY2020.
86	NTT Data Fedhealth, Inc. Top agencies HHS (Department of Health and Human Services)	$57,038,256	0.2%	Rank history: #67 in FY2022, #58 in FY2023, #90 in FY2024 and not on the FY2025 list; up 1 since FY2020.
87	Cognosante Holdings, LLC 2 awardees, including Cognosante MVH LLC and Cognosante, LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DOL (Department of Labor)	$55,797,669	0.2%	Rank history: not on the FY2022–FY2025 lists; up 40 since FY2020.
88	Insight Public Sector Inc. 5 awardees, including Pcmg, Inc. Top agencies Navy (Department of the Navy) DISA (Defense Information Systems Agency) Army (Department of the Army)	$54,939,274	0.2%	Rank history: not on the FY2022–FY2025 lists; down 26 since FY2020.
89	Business Integra Technology Solutions, Inc. Top agencies NASA (National Aeronautics and Space Administration) DOT (Department of Transportation) OSD (Office of the Secretary of Defense)	$54,290,994	0.2%	Rank history: #97 in FY2022 and not on the FY2023–FY2025 lists; up 33 since FY2020.
90	Kci-Acuity, LLC Top agencies DOS (Department of State) SEC (Securities and Exchange Commission) DHS (Department of Homeland Security)	$53,941,687	0.2%	Rank history: #56 in FY2022, #40 in FY2023, #89 in FY2024 and not on the FY2025 list; up 72 since FY2020.
91	Synergy Business Innovation & Solutions Inc. Top agencies DHS (Department of Homeland Security) DOL (Department of Labor) DOT (Department of Transportation)	$53,308,289	0.2%	Rank history: not on the FY2022 list, #96 in FY2023 and not on the FY2024–FY2025 lists; up 44 since FY2020.
92	Sparksoft Corporation Top agencies HHS (Department of Health and Human Services)	$52,142,603	0.1%	Rank history: #82 in FY2022, #68 in FY2023 and not on the FY2024–FY2025 lists; up 64 since FY2020.
93	Insap Services, Inc. Top agencies Army (Department of the Army)	$51,350,347	0.1%	Rank history: not on the FY2022–FY2025 lists; up 51 since FY2020.
94	Mindpoint Group LLC Top agencies DOJ (Department of Justice) USAID (US Agency for International Development) Commerce (Department of Commerce)	$51,118,212	0.1%	Rank history: #73 in FY2022, #35 in FY2023, #55 in FY2024 and #33 in FY2025; up 201 since FY2020.
95	Acumen Solutions, Inc. Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$50,601,753	0.1%	Rank history: #80 in FY2022, #80 in FY2023 and not on the FY2024–FY2025 lists; up 54 since FY2020.
96	Valdez International Corporation Top agencies USAF (Department of the Air Force) DOI (Department of the Interior)	$50,587,400	0.1%	Rank history: not on the FY2022 list, #81 in FY2023, #70 in FY2024 and not on the FY2025 list; up 58 since FY2020.
97	Criterion Systems, L.L.C. Top agencies DOE (Department of Energy) USDA (Department of Agriculture) NSF (National Science Foundation)	$50,566,770	0.1%	Rank history: not on the FY2022–FY2025 lists; down 16 since FY2020.
98	BAE Systems PLC 2 awardees, including BAE Systems Technology Solutions & Services Inc. and BAE Systems Information and Electronic Systems Integration Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) USAF (Department of the Air Force)	$50,108,985	0.1%	Rank history: #77 in FY2022, #56 in FY2023, #57 in FY2024 and not on the FY2025 list; down 6 since FY2020.
99	Karsun Solutions LLC Top agencies DHS (Department of Homeland Security) GSA (General Services Administration)	$49,585,941	0.1%	Rank history: not on the FY2022 list, #95 in FY2023, #87 in FY2024 and not on the FY2025 list; up 69 since FY2020.
100	Cisco Systems Inc. Top agencies DISA (Defense Information Systems Agency) Army (Department of the Army) DFAS (Defense Finance and Accounting Service)	$49,569,773	0.1%	Rank history: not on the FY2022–FY2025 lists; down 82 since FY2020.

Show 75 more

100 of 4,307 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC D3

Code	Net obligations	Largest contractor
D399 Other ADP and Telecommunications Services (includes data storage on tapes, compact disks, etc.)	$10,857,583,679	Leidos Holdings, Inc.
D318 IT and Telecom – Integrated Hardware/Software/Services Solutions, Predominantly Services	$4,607,692,392	Accenture Federal Services LLC
D302 ADP Systems Development Services	$2,073,599,604	General Dynamics Corporation
D319 IT and Telecom – Annual Software Maintenance Service Plans	$1,969,737,989	Dell Federal Systems L.P.
D301 ADP Facility Operation and Maintenance Services	$1,682,077,716	HP Enterprise Services LLC
D307 Automated Information System Design and Integration Services	$1,620,054,927	CACI International Inc.
D316 Telecommunications Network Management Services	$1,470,017,116	Leidos Holdings, Inc.
D304 ADP Telecommunications and Transmission Services	$1,341,554,823	At&T Inc.
D308 Programming Services	$1,161,484,911	Leidos Holdings, Inc.
D310 ADP Backup and Security Services	$1,068,077,194	Accenture Federal Services LLC
D305 ADP Teleprocessing and Timesharing Service	$793,279,104	General Dynamics Corporation
D306 ADP Systems Analysis Services	$789,598,937	Booz Allen Hamilton Holding Corporation
D325 IT and Telecom – Data Centers and Storage	$589,570,200	Science Applications International Corporation
D321 IT and Telecom – Help Desk	$481,573,438	General Dynamics Corporation
D314 IT and Telecom – System Acquisition Support	$441,843,833	Booz Allen Hamilton Holding Corporation
D309 Information and Data Broadcasting or Data Distribution Services	$340,096,139	Alamo City Engineering Services, Inc.
D317 IT and Telecom – Web-Based Subscription	$249,503,546	Reed Elsevier Inc.
D311 ADP Data Conversion Services	$191,417,827	Accenture Federal Services LLC
D320 IT and Telecom – Annual Hardware Maintenance Service Plans	$189,672,188	Red River Technology LLC
D313 Computer Aided Design/Computer Aided Manufacturing (CAD/CAM) Services	$133,623,626	Jacobs Engineering Group Inc.
D324 IT and Telecom – Business Continuity	$76,837,580	Quality Technology, Incorporated
D322 IT and Telecom – Internet	$62,243,278	Amentum Services, Inc.
D315 IT and Telecom – Digitizing	$35,743,148	Northrop Grumman Corporation
D303 ADP Data Entry Services	$34,878,560	Arctic Slope Regional Corporation

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 $35.3 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 D3 contractors in FY2021?

1. General Dynamics Corporation ($1.57B), 2. Leidos Holdings, Inc. ($1.53B), 3. Booz Allen Hamilton Holding Corporation ($1.3B), 4. CACI International Inc. ($1.18B), 5. Accenture Federal Services LLC ($1.15B), 6. Science Applications International Corporation ($946M), 7. Dell Federal Systems L.P. ($843M), 8. Northrop Grumman Corporation ($673M), 9. CGI Technologies and Solutions Inc. ($596M), 10. Cerner Corporation ($510M).

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