Top 100 Contractors in PSC DB: IT and Telecom – Compute, FY2021

Name: Top 100 Contractors in PSC DB: IT and Telecom – Compute, FY2021
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

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

The top 10 won 64% of FY2021 PSC DB contract dollars

Contract obligations: $477,186,514 Net of deobligations, by contracts coded PSC DB or a code under it
Contractors: 334 Parent companies with an obligation
Largest contractor: General Dynamics Corporation $93.2 million, 19.5% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	General Dynamics Corporation 3 awardees, including General Dynamics Information Technology, Inc. and Csra LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$93,249,471	19.5%	Rank history: #1 in FY2022, #3 in FY2023, #4 in FY2024 and #8 in FY2025; new, not ranked in FY2020.
2	Smart Global Holdings Inc. Through Penguin Computing, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$51,034,400	10.7%	Rank history: not on the FY2022 list, #64 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
3	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DOL (Department of Labor)	$42,987,105	9.0%	Rank history: #3 in FY2022, #6 in FY2023, #8 in FY2024 and #7 in FY2025; new, not ranked in FY2020.
4	Arctic Slope Regional Corporation 2 awardees, including Inuteq, LLC and Asrc Federal Data Network Technologies, LLC Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$33,202,833	6.9%	Rank history: #2 in FY2022, #5 in FY2023, #17 in FY2024 and #5 in FY2025; new, not ranked in FY2020.
5	Govplace, LLC Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$29,640,446	6.2%	Rank history: #6 in FY2022, #8 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
6	L3Harris Technologies, Inc. 3 awardees, including NV5 Geospatial Solutions, Inc. Top agencies USAF (Department of the Air Force) Smithsonian (Smithsonian Institution)	$12,130,674	2.5%	Rank history: #9 in FY2022, #13 in FY2023, #18 in FY2024 and #22 in FY2025; new, not ranked in FY2020.
7	Nana Regional Corporation Inc 3 awardees, including Cloud Lake Technology LLC, Tuva LLC and Affigent, LLC Top agencies USSOCOM (United States Special Operations Command) HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$11,803,258	2.5%	Rank history: #12 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
8	International Business Machines Corporation Top agencies RRB (Railroad Retirement Board) DOS (Department of State) NARA (National Archives and Records Administration)	$11,228,929	2.3%	Rank history: #19 in FY2022, #12 in FY2023, #41 in FY2024 and #12 in FY2025; new, not ranked in FY2020.
9	Science Applications International Corporation Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy)	$11,066,783	2.3%	Rank history: #4 in FY2022, not on the FY2023 list, #13 in FY2024 and #4 in FY2025; new, not ranked in FY2020.
10	Thundercat Technology, LLC Top agencies DOS (Department of State) VA (Department of Veterans Affairs) DOJ (Department of Justice)	$11,025,596	2.3%	Rank history: #10 in FY2022, #19 in FY2023, #38 in FY2024 and #21 in FY2025; new, not ranked in FY2020.
11	Strategic Communications LLC Top agencies HHS (Department of Health and Human Services)	$8,595,032	1.8%	Rank history: #39 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
12	Changeis, Inc. Top agencies DOT (Department of Transportation)	$8,571,860	1.8%	Rank history: #22 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
13	Amazon.com, Inc. Through Amazon Web Services, Inc. Top agencies Navy (Department of the Navy) DOD (Department of Defense) USSOCOM (United States Special Operations Command)	$7,527,756	1.6%	Rank history: #54 in FY2022, #4 in FY2023, #16 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
14	Fivecast PTY Ltd 2 awardees Top agencies DCSA (Defense Counterintelligence and Security Agency) OSD (Office of the Secretary of Defense)	$6,909,391	1.4%	Rank history: #48 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
15	Seneca Holdings LLC Through Executive Protection Systems LLC Top agencies USSOCOM (United States Special Operations Command)	$6,649,285	1.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
16	On Assignment, Inc. Through ECS Federal, LLC Top agencies Navy (Department of the Navy)	$5,892,951	1.2%	Rank history: #23 in FY2022, #28 in FY2023, #45 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
17	Parsons Corporation Through Parsons Government Services Inc. Top agencies USAF (Department of the Air Force)	$4,873,323	1.0%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
18	Qbase, LLC Top agencies OSD (Office of the Secretary of Defense)	$4,205,336	0.9%	Rank history: #31 in FY2022, #42 in FY2023, #55 in FY2024 and #81 in FY2025; new, not ranked in FY2020.
19	Biswas Information Technology Solutions Inc. Top agencies HHS (Department of Health and Human Services)	$4,105,306	0.9%	Rank history: #68 in FY2022, #77 in FY2023, not on the FY2024 list and #91 in FY2025; new, not ranked in FY2020.
20	Environmental Systems Research Institute, Inc. Top agencies DOJ (Department of Justice) DOS (Department of State)	$3,957,386	0.8%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
21	Chakrabarti Management Consultancy, Inc. Top agencies DHS (Department of Homeland Security)	$3,940,880	0.8%	Rank history: #27 in FY2022, #34 in FY2023, #46 in FY2024 and #51 in FY2025; new, not ranked in FY2020.
22	CGI Technologies and Solutions Inc. Through CGI Federal Inc. Top agencies DOI (Department of the Interior)	$3,710,983	0.8%	Rank history: #21 in FY2022, #29 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
23	Vion Corporation Top agencies Navy (Department of the Navy)	$3,455,625	0.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
24	Dynamic Systems Inc. Top agencies VA (Department of Veterans Affairs) DOE (Department of Energy) NASA (National Aeronautics and Space Administration)	$3,350,887	0.7%	Rank history: #32 in FY2022, #49 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
25	Deloitte LLP 2 awardees, including Deloitte & Touche LLP and Deloitte Consulting LLP Top agencies DOJ (Department of Justice) HUD (Department of Housing and Urban Development)	$3,238,356	0.7%	Rank history: #46 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
26	Quality Information Partners, Inc. Top agencies ED (Department of Education)	$3,175,931	0.7%	Rank history: #34 in FY2022, #40 in FY2023, #51 in FY2024 and #61 in FY2025; new, not ranked in FY2020.
27	Communications Training Analysis Corporation Top agencies NARA (National Archives and Records Administration)	$3,077,800	0.6%	Rank history: #11 in FY2022, #22 in FY2023, #25 in FY2024 and #27 in FY2025; new, not ranked in FY2020.
28	Ironarch Technology LLC Top agencies VA (Department of Veterans Affairs)	$2,990,052	0.6%	Rank history: #40 in FY2022, #47 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
29	Pro-Sphere Tek, Inc. Top agencies WHS (DOD Washington Headquarters Service)	$2,571,833	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
30	Hitachi, Ltd. 2 awardees, including Hitachi Federal Corporation and Hitachi High-Tech America, Inc. Top agencies EOP (Executive Office of the President) NASA (National Aeronautics and Space Administration)	$2,499,819	0.5%	Rank history: #63 in FY2022, #61 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
31	Metrostar Systems, LLC Top agencies USAF (Department of the Air Force)	$2,291,448	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
32	G2Sf LLC Top agencies DOI (Department of the Interior)	$2,200,266	0.5%	Rank history: not on the FY2022–FY2023 lists, #71 in FY2024 and #46 in FY2025; new, not ranked in FY2020.
33	Dell Federal Systems L.P. 3 awardees, including Dell Marketing L.P. and EMC Corporation Top agencies Navy (Department of the Navy) Army (Department of the Army) Smithsonian (Smithsonian Institution)	$2,184,960	0.5%	Rank history: #45 in FY2022, #25 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
34	CDW Corporation Through CDW Government LLC Top agencies Army (Department of the Army) DOT (Department of Transportation) DOJ (Department of Justice)	$2,175,149	0.5%	Rank history: #78 in FY2022, #89 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
35	V3Gate, LLC Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs) RRB (Railroad Retirement Board)	$2,103,532	0.4%	Rank history: #42 in FY2022, #38 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
36	Mississippi State University Top agencies Army (Department of the Army)	$2,017,337	0.4%	Rank history: #50 in FY2022, #99 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
37	Definitive Logic Corporation Top agencies WHS (DOD Washington Headquarters Service)	$1,879,862	0.4%	Rank history: #81 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
38	Anika Systems Incorporated Top agencies HHS (Department of Health and Human Services)	$1,832,512	0.4%	Rank history: #85 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
39	Veteran Information Technologies, LLC Top agencies Navy (Department of the Navy)	$1,781,947	0.4%	Rank history: #88 in FY2022, #70 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
40	Hewlett Packard Enterprise Co Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security) USDA (Department of Agriculture)	$1,518,633	0.3%	Rank history: not on the FY2022–FY2023 lists, #66 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
41	DLT Solutions LLC 2 awardees Top agencies Navy (Department of the Navy) SSA (Social Security Administration) DOS (Department of State)	$1,481,012	0.3%	Rank history: not on the FY2022 list, #94 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
42	Nvision Solutions Inc. Top agencies Navy (Department of the Navy)	$1,464,269	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
43	Zayas Hendrick Mediaworks LLC Top agencies Treasury (Department of the Treasury)	$1,452,906	0.3%	Rank history: #36 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
44	Biospatial, Inc. Top agencies DHS (Department of Homeland Security)	$1,372,500	0.3%	Rank history: #66 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
45	Autonomic Resources LLC Top agencies DOI (Department of the Interior)	$1,261,464	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
46	Fortuna Business Management Consulting, Inc. Top agencies Army (Department of the Army)	$1,260,000	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
47	Software Information Resource Corp. Top agencies DOS (Department of State) Commerce (Department of Commerce) Navy (Department of the Navy)	$1,194,556	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
48	Simple Technology Solutions Inc. Through Applied Cloud Technologies LLC Top agencies Treasury (Department of the Treasury)	$1,189,242	0.2%	Rank history: #57 in FY2022, #45 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
49	Astor-Nationwide, LLC Top agencies DOI (Department of the Interior)	$1,136,543	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
50	New TECH Solutions, Inc. Top agencies NASA (National Aeronautics and Space Administration) HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$1,062,287	0.2%	Rank history: #15 in FY2022, #14 in FY2023, #24 in FY2024 and #90 in FY2025; new, not ranked in FY2020.
51	Carahsoft Technology Corp Top agencies DOI (Department of the Interior) USAF (Department of the Air Force) EPA (Environmental Protection Agency)	$1,013,901	0.2%	Rank history: #86 in FY2022, not on the FY2023 list, #69 in FY2024 and #42 in FY2025; new, not ranked in FY2020.
52	Stereo Optical Company Inc. Through Optical Lab Software Solutions, Inc. Top agencies Navy (Department of the Navy)	$999,717	0.2%	Rank history: #91 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
53	Sara Software Systems LLC Top agencies SBA (Small Business Administration)	$998,000	0.2%	Rank history: #74 in FY2022, #97 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
54	Smartronix LLC Top agencies DOI (Department of the Interior) HHS (Department of Health and Human Services)	$924,799	0.2%	Rank history: #98 in FY2022, #91 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
55	Crystal Clear Technologies Inc. Top agencies USAF (Department of the Air Force)	$895,638	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
56	Netcomm, Inc. Top agencies HHS (Department of Health and Human Services)	$884,423	0.2%	Rank history: #79 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
57	Telos Corporation Top agencies USAF (Department of the Air Force)	$882,177	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
58	Premier Solutions Hi LLC Top agencies Army (Department of the Army)	$879,400	0.2%	Rank history: #93 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
59	Breakpoint Labs, L.L.C. Top agencies HHS (Department of Health and Human Services)	$854,213	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
60	Lockheed Martin Corporation Top agencies OSD (Office of the Secretary of Defense)	$849,198	0.2%	Rank history: not on the FY2022 list, #11 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
61	Fcn, Inc. Top agencies DODEA (Department of Defense Education Activity) DOS (Department of State) Navy (Department of the Navy)	$792,729	0.2%	Rank history: #38 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
62	Sterling Computers Corporation Top agencies FCC (Federal Communications Commission) DOJ (Department of Justice) NASA (National Aeronautics and Space Administration)	$782,739	0.2%	Rank history: #82 in FY2022, #75 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
63	Thomas Scientific LLC Through Unison Software Inc. Top agencies EPA (Environmental Protection Agency)	$755,348	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
64	Connexus Hub Inc. Top agencies Navy (Department of the Navy)	$735,177	0.2%	Rank history: #92 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
65	Iron Bow Technologies, LLC Top agencies DOT (Department of Transportation) DOL (Department of Labor) VA (Department of Veterans Affairs)	$712,495	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
66	CSA Global LLC Top agencies Navy (Department of the Navy)	$620,482	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
67	RTX Corporation 2 awardees, including Nightwing Technologies, LLC and Everfox LLC Top agencies USAF (Department of the Air Force) DOJ (Department of Justice)	$615,427	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
68	Blue Ivy Partners, LLC Top agencies USAF (Department of the Air Force)	$602,033	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
69	Dynamic Animation Systems, Inc. Top agencies DHS (Department of Homeland Security)	$564,555	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
70	Bahfed Corp Top agencies DISA (Defense Information Systems Agency)	$563,766	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
71	M2 Technology, Inc. Top agencies DHA (Defense Health Agency)	$559,367	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
72	Saliense Consulting LLC Top agencies PBGC (Pension Benefit Guaranty Corporation)	$539,944	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
73	Commonwealth Informatics Inc. Top agencies Army (Department of the Army)	$530,412	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
74	World Wide Technology Holding Co. Inc. Through World Wide Technology LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$528,813	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
75	Techtrend, Inc. Top agencies USDA (Department of Agriculture)	$523,320	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
76	Coretek Consulting LLC Top agencies HHS (Department of Health and Human Services)	$523,228	0.1%	Rank history: #61 in FY2022, #78 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
77	Iqvia Inc. Through Biofortis, LLC Top agencies HHS (Department of Health and Human Services)	$489,805	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
78	En-Net Services, L.L.C. Top agencies HHS (Department of Health and Human Services)	$466,702	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
79	DH Technologies, Inc. Top agencies DISA (Defense Information Systems Agency)	$450,000	0.1%	Rank history: #25 in FY2022, #36 in FY2023, #87 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
80	Agility Technologies Inc. Top agencies USDA (Department of Agriculture)	$448,328	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
81	Astor & Sanders Corporation Top agencies DOI (Department of the Interior)	$446,246	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
82	Jasper Solutions Inc. Top agencies USAF (Department of the Air Force)	$434,278	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
83	Ip-Plus Consulting, Inc. Top agencies NRC (Nuclear Regulatory Commission)	$430,965	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
84	Reliasource, Inc. Top agencies RRB (Railroad Retirement Board)	$399,173	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
85	Focused Management, Inc. Top agencies USDA (Department of Agriculture)	$379,581	0.1%	Rank history: #14 in FY2022, #87 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
86	Prosidian Consulting LLC Top agencies Army (Department of the Army)	$352,294	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
87	Govsmart, Inc. Top agencies DOI (Department of the Interior) Navy (Department of the Navy) DOL (Department of Labor)	$352,278	0.1%	Rank history: not on the FY2022 list, #96 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
88	Unissant Inc. Top agencies OPM (Office of Personnel Management)	$349,182	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
89	Creative Systems and Consulting L.L.C. Top agencies HHS (Department of Health and Human Services)	$308,106	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
90	KRJ Consulting LLC Top agencies Army (Department of the Army)	$306,797	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
91	Espy LLC Top agencies DOJ (Department of Justice)	$303,007	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
92	Disys Solutions, Inc. Top agencies NASA (National Aeronautics and Space Administration) DHA (Defense Health Agency) DOT (Department of Transportation)	$291,017	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
93	Kapsuun Group, LLC Top agencies HHS (Department of Health and Human Services)	$288,880	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
94	Identiv, Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts)	$286,537	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
95	Hands On Learning Solutions LLC Top agencies DOS (Department of State)	$282,148	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
96	Alvarez LLC Top agencies DISA (Defense Information Systems Agency) HHS (Department of Health and Human Services) Peace Corps	$277,417	0.1%	Rank history: #100 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
97	Metgreen Solutions Inc. Top agencies DOJ (Department of Justice)	$271,714	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
98	Ccite Inc. Top agencies DOT (Department of Transportation)	$270,253	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
99	Trace3 Government, LLC Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior) Army (Department of the Army)	$259,937	0.1%	Rank history: #99 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
100	Trofholz Technologies, Inc. Top agencies VA (Department of Veterans Affairs)	$254,635	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.

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100 of 334 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC DB

Code	Net obligations	Largest contractor
DB10 IT and Telecom – Compute as a Service: Mainframe/Servers	$164,996,457	General Dynamics Corporation
DB01 IT and Telecom – High Performance Computing (HPC) Support Services (Labor)	$161,608,662	Smart Global Holdings Inc.
DB02 IT and Telecom – Compute Support Services, Non-HPC (Labor)	$150,581,394	Booz Allen Hamilton Holding 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 $478 million 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 DB contractors in FY2021?

1. General Dynamics Corporation ($93.2M), 2. Smart Global Holdings Inc. ($51M), 3. Booz Allen Hamilton Holding Corporation ($43M), 4. Arctic Slope Regional Corporation ($33.2M), 5. Govplace, LLC ($29.6M), 6. L3Harris Technologies, Inc. ($12.1M), 7. Nana Regional Corporation Inc ($11.8M), 8. International Business Machines Corporation ($11.2M), 9. Science Applications International Corporation ($11.1M), 10. Thundercat Technology, LLC ($11M).

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