Top 100 Contractors in NAICS 54151: Computer Systems Design and Related Services, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Leidos Holdings, Inc. 18 awardees, including Leidos, Inc. and Leidos SMS Inc. Top agencies DHA (Defense Health Agency) Navy (Department of the Navy) DISA (Defense Information Systems Agency)	$2,943,632,971	4.6%	Rank history: #1 in FY2022, #2 in FY2023, #2 in FY2024 and #1 in FY2025; up 2 since FY2020.
2	Booz Allen Hamilton Holding Corporation 10 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)	$2,811,780,573	4.4%	Rank history: #2 in FY2022, #1 in FY2023, #1 in FY2024 and #2 in FY2025; unchanged since FY2020.
3	General Dynamics Corporation 21 awardees, including General Dynamics Information Technology, Inc., Csra LLC and General Dynamics One Source LLC Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$2,631,407,071	4.1%	Rank history: #3 in FY2022, #3 in FY2023, #3 in FY2024 and #4 in FY2025; down 2 since FY2020.
4	Accenture Federal Services LLC 7 awardees, including ASM Research, LLC, Accenture LLP and Avanade Inc. Top agencies VA (Department of Veterans Affairs) DOE (Department of Energy) DOS (Department of State)	$2,174,637,511	3.4%	Rank history: #5 in FY2022, #43 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
5	CACI International Inc. 17 awardees, including Caci, Inc. - Federal, Caci-Iss, LLC and Caci Nss, LLC Top agencies DHS (Department of Homeland Security) Army (Department of the Army) Navy (Department of the Navy)	$1,463,086,309	2.3%	Rank history: #6 in FY2022, #7 in FY2023, #8 in FY2024 and #5 in FY2025; up 2 since FY2020.
6	Dell Federal Systems L.P. 5 awardees, including EMC Corporation and Dell Marketing L.P. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) USAF (Department of the Air Force)	$1,389,580,988	2.2%	Rank history: #11 in FY2022, #19 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
7	Science Applications International Corporation 10 awardees, including Halfaker and Associates, LLC and Engility Services, LLC Top agencies Army (Department of the Army) DOS (Department of State) USAF (Department of the Air Force)	$1,389,527,081	2.2%	Rank history: #4 in FY2022, #5 in FY2023, #5 in FY2024 and #6 in FY2025; up 3 since FY2020.
8	Deloitte LLP 3 awardees, including Deloitte Consulting LLP, Deloitte & Touche LLP and Deloitte Financial Advisory Services LLP Top agencies Treasury (Department of the Treasury) HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$1,386,348,664	2.2%	Rank history: #9 in FY2022, #8 in FY2023, #6 in FY2024 and #7 in FY2025; up 4 since FY2020.
9	Northrop Grumman Corporation 17 awardees, including Northrop Grumman Systems Corporation Top agencies SSA (Social Security Administration) Army (Department of the Army) USAF (Department of the Air Force)	$1,142,763,096	1.8%	Rank history: #22 in FY2022, #29 in FY2023, #27 in FY2024 and #24 in FY2025; down 1 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) Army (Department of the Army) DHA (Defense Health Agency)	$983,692,102	1.5%	Rank history: #18 in FY2022 and not on the FY2023–FY2025 lists; down 1 since FY2020.
11	CGI Technologies and Solutions Inc. 2 awardees, including CGI Federal Inc. Top agencies DOS (Department of State) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$930,585,252	1.5%	Rank history: #10 in FY2022, #10 in FY2023, #24 in FY2024 and not on the FY2025 list; unchanged since FY2020.
12	Perspecta Inc. 6 awardees, including Peraton Enterprise Solutions LLC, Knight Point Systems, LLC and Peraton Technology Services Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DISA (Defense Information Systems Agency)	$898,927,930	1.4%	Rank history: not on the FY2022–FY2025 lists; down 7 since FY2020.
13	International Business Machines Corporation 8 awardees Top agencies Army (Department of the Army) DHS (Department of Homeland Security) Navy (Department of the Navy)	$841,223,447	1.3%	Rank history: #15 in FY2022, #16 in FY2023, #12 in FY2024 and #14 in FY2025; up 5 since FY2020.
14	Four Points Technology, L.L.C. Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$610,294,666	1.0%	Rank history: #17 in FY2022, #13 in FY2023, #11 in FY2024 and #13 in FY2025; up 5 since FY2020.
15	Nana Regional Corporation Inc 13 awardees, including Affigent, LLC, Sava Workforce Solutions LLC and Cloud Lake Technology LLC Top agencies DOJ (Department of Justice) Army (Department of the Army) DHS (Department of Homeland Security)	$598,330,483	0.9%	Rank history: #37 in FY2022 and not on the FY2023–FY2025 lists; up 5 since FY2020.
16	Fcn, Inc. Top agencies Treasury (Department of the Treasury) DHS (Department of Homeland Security) Navy (Department of the Navy)	$596,697,624	0.9%	Rank history: #13 in FY2022, #9 in FY2023, #9 in FY2024 and #11 in FY2025; down 3 since FY2020.
17	Lockheed Martin Corporation 19 awardees Top agencies MDA (DOD Missile Defense Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$557,602,112	0.9%	Rank history: #24 in FY2022, #23 in FY2023, #21 in FY2024 and #20 in FY2025; up 5 since FY2020.
18	Thundercat Technology, LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) HHS (Department of Health and Human Services)	$543,679,503	0.8%	Rank history: #14 in FY2022, #11 in FY2023, #13 in FY2024 and #12 in FY2025; down 3 since FY2020.
19	Mantech International Corporation 9 awardees, including Mantech Advanced Systems International, Inc., Tapestry Technologies, Inc. and Infozen, LLC Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) Army (Department of the Army)	$511,665,845	0.8%	Rank history: #19 in FY2022, #28 in FY2023, #28 in FY2024 and #18 in FY2025; up 7 since FY2020.
20	Jacobs Engineering Group Inc. 10 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) DOJ (Department of Justice)	$430,536,604	0.7%	Rank history: #28 in FY2022, #32 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
21	RTX Corporation 28 awardees, including Raytheon Company and Solipsys Corporation Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$429,867,448	0.7%	Rank history: #27 in FY2022, #48 in FY2023 and not on the FY2024–FY2025 lists; up 23 since FY2020.
22	Microsoft Corporation 2 awardees, including Github Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$420,828,295	0.7%	Rank history: #21 in FY2022, #18 in FY2023, #17 in FY2024 and #23 in FY2025; down 6 since FY2020.
23	Colossal Contracting LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) DISA (Defense Information Systems Agency)	$411,681,979	0.6%	Rank history: #45 in FY2022, not on the FY2023 list, #76 in FY2024 and #59 in FY2025; up 26 since FY2020.
24	HP Enterprise Services LLC 14 awardees, including Peraton Enterprise Solutions LLC, Peraton Inc. and Peraton Government Communications Inc. Top agencies HHS (Department of Health and Human Services) DHRA (Defense Human Resources Activity) USAF (Department of the Air Force)	$402,587,461	0.6%	Rank history: #7 in FY2022, #6 in FY2023, #19 in FY2024 and not on the FY2025 list; up 159 since FY2020.
25	Minburn Technology Group, LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) DHA (Defense Health Agency)	$381,286,990	0.6%	Rank history: #30 in FY2022, #15 in FY2023, #14 in FY2024 and #17 in FY2025; up 3 since FY2020.
26	New TECH Solutions, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$362,336,720	0.6%	Rank history: #26 in FY2022, #20 in FY2023, #18 in FY2024 and #19 in FY2025; up 3 since FY2020.
27	Nippon Telegraph and Telephone Corporation 2 awardees, including NTT Data Federal Services, Inc. and NTT Data Services Federal Government, LLC Top agencies DOJ (Department of Justice) USAID (US Agency for International Development) HHS (Department of Health and Human Services)	$325,906,981	0.5%	Rank history: #33 in FY2022, #61 in FY2023 and not on the FY2024–FY2025 lists; up 14 since FY2020.
28	L3Harris Technologies, Inc. 16 awardees, including L3Harris Forcex, Inc., L3 Technologies, Inc. and CAE USA Inc. Top agencies Commerce (Department of Commerce) USAF (Department of the Air Force) DOT (Department of Transportation)	$307,620,770	0.5%	Rank history: #53 in FY2022, #47 in FY2023, #54 in FY2024 and #69 in FY2025; up 40 since FY2020.
29	Mythics, LLC 2 awardees, including Emergent, LLC Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) VA (Department of Veterans Affairs)	$295,099,333	0.5%	Rank history: #34 in FY2022, #25 in FY2023, #30 in FY2024 and #26 in FY2025; up 2 since FY2020.
30	ACE Info Solutions LLC 2 awardees, including Guidehouse Digital LLC and Dovel Technologies LLC Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) DHS (Department of Homeland Security)	$292,504,634	0.5%	Rank history: #58 in FY2022, #57 in FY2023 and not on the FY2024–FY2025 lists; up 32 since FY2020.
31	Tista Science and Technology Corporation Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) Treasury (Department of the Treasury)	$284,196,384	0.4%	Rank history: #35 in FY2022, #39 in FY2023, #43 in FY2024 and #65 in FY2025; up 12 since FY2020.
32	V3Gate, LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) USAF (Department of the Air Force)	$283,711,548	0.4%	Rank history: #25 in FY2022, #17 in FY2023, #16 in FY2024 and #15 in FY2025; down 15 since FY2020.
33	World Wide Technology Holding Co. Inc. Through World Wide Technology LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) DOJ (Department of Justice)	$276,336,969	0.4%	Rank history: #29 in FY2022 and not on the FY2023–FY2025 lists; up 15 since FY2020.
34	Advanced Technology Systems Inc. 7 awardees, including Salient Crgt, Inc., Salient Federal-Sgis Inc. and Guident Technologies, Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) GAO (Government Accountability Office)	$269,960,964	0.4%	Rank history: not on the FY2022 list, #24 in FY2023, #35 in FY2024 and not on the FY2025 list; up 5 since FY2020.
35	Govcio, LLC Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security) DOL (Department of Labor)	$257,037,454	0.4%	Rank history: #20 in FY2022, #52 in FY2023, #59 in FY2024 and #64 in FY2025; up 22 since FY2020.
36	Arctic Slope Regional Corporation 12 awardees, including Inuteq, LLC, Asrc Federal Data Network Technologies, LLC and Asrc Federal Data Solutions, LLC Top agencies NASA (National Aeronautics and Space Administration) DOT (Department of Transportation) DOS (Department of State)	$253,517,283	0.4%	Rank history: #42 in FY2022, #33 in FY2023, #42 in FY2024 and #21 in FY2025; down 1 since FY2020.
37	Blue TECH Inc. Top agencies DHS (Department of Homeland Security) USSOCOM (United States Special Operations Command) Commerce (Department of Commerce)	$245,261,285	0.4%	Rank history: #50 in FY2022, #45 in FY2023, #47 in FY2024 and #54 in FY2025; down 5 since FY2020.
38	On Assignment, Inc. 3 awardees, including ECS Federal, LLC, Indrasoft Inc. and Inforeliance LLC Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) Treasury (Department of the Treasury)	$226,620,324	0.4%	Rank history: #38 in FY2022, #21 in FY2023 and not on the FY2024–FY2025 lists; up 34 since FY2020.
39	Koniag, Inc. 9 awardees, including Tuknik Government Services LLC, Eagle Harbor Solutions LLC and Arlluk Technology Solutions LLC Top agencies USDA (Department of Agriculture) DOS (Department of State) DISA (Defense Information Systems Agency)	$226,328,648	0.4%	Rank history: #40 in FY2022, #41 in FY2023 and not on the FY2024–FY2025 lists; up 19 since FY2020.
40	Parsons Corporation 8 awardees, including Parsons Government Services Inc., Polaris Alpha, LLC and Williams Electric Co Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) GSA (General Services Administration)	$221,276,964	0.3%	Rank history: #48 in FY2022, #34 in FY2023, #39 in FY2024 and #67 in FY2025; down 6 since FY2020.
41	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)	$217,723,873	0.3%	Rank history: #41 in FY2022, #36 in FY2023 and not on the FY2024–FY2025 lists; up 29 since FY2020.
42	Serco North America (Holdings) Inc 5 awardees, including Serco Inc., Whitney Bradley & Brown, Inc. and Brtrc Federal Solutions, Inc. Top agencies HHS (Department of Health and Human Services) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$216,992,103	0.3%	Rank history: #43 in FY2022, #55 in FY2023 and not on the FY2024–FY2025 lists; down 6 since FY2020.
43	Liberty It Solutions LLC Top agencies VA (Department of Veterans Affairs) DOT (Department of Transportation)	$209,382,013	0.3%	Rank history: not on the FY2022 list, #79 in FY2023 and not on the FY2024–FY2025 lists; down 6 since FY2020.
44	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)	$207,435,443	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
45	Alvarez LLC Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security) DOJ (Department of Justice)	$203,851,246	0.3%	Rank history: #57 in FY2022, #60 in FY2023, #65 in FY2024 and #43 in FY2025; down 5 since FY2020.
46	ICF International, Inc. 4 awardees, including Incentive Technology Group LLC, ICF Incorporated, L.L.C. and ICF Macro Inc. Top agencies HHS (Department of Health and Human Services) FCC (Federal Communications Commission) GSA (General Services Administration)	$203,261,215	0.3%	Rank history: #52 in FY2022, #51 in FY2023 and not on the FY2024–FY2025 lists; up 42 since FY2020.
47	DLT Solutions LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) DISA (Defense Information Systems Agency)	$199,988,159	0.3%	Rank history: not on the FY2022 list, #56 in FY2023 and not on the FY2024–FY2025 lists; up 304 since FY2020.
48	Red River Technology LLC 2 awardees, including Distributed Technology Group LLC Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security) Treasury (Department of the Treasury)	$196,799,449	0.3%	Rank history: #49 in FY2022, #40 in FY2023, #56 in FY2024 and not on the FY2025 list; up 3 since FY2020.
49	Government Acquisitions LLC Top agencies DHS (Department of Homeland Security) Treasury (Department of the Treasury) Commerce (Department of Commerce)	$196,123,407	0.3%	Rank history: #39 in FY2022, #38 in FY2023, #45 in FY2024 and #46 in FY2025; up 7 since FY2020.
50	CDW Corporation 2 awardees, including CDW Government LLC Top agencies DOT (Department of Transportation) HHS (Department of Health and Human Services) Commerce (Department of Commerce)	$193,866,557	0.3%	Rank history: #44 in FY2022, #49 in FY2023 and not on the FY2024–FY2025 lists; down 26 since FY2020.
51	Four LLC Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) USSOCOM (United States Special Operations Command)	$184,004,197	0.3%	Rank history: #51 in FY2022, #27 in FY2023, #25 in FY2024 and #33 in FY2025; down 13 since FY2020.
52	Metgreen Solutions Inc. Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy) DOT (Department of Transportation)	$180,897,184	0.3%	Rank history: #77 in FY2022, not on the FY2023 list, #50 in FY2024 and #35 in FY2025; up 8 since FY2020.
53	Kbr, Inc. 8 awardees, including KBR Wyle Services, LLC and Dependable Global Solutions, LLC Top agencies DOI (Department of the Interior) Navy (Department of the Navy) DOT (Department of Transportation)	$176,888,430	0.3%	Rank history: #60 in FY2022, #46 in FY2023 and not on the FY2024–FY2025 lists; up 25 since FY2020.
54	H.i.g. Capital Management Inc. 3 awardees, including Empower AI, Inc., Iron Bow Technologies, LLC and Symplicity Corporation Top agencies GSA (General Services Administration) OSD (Office of the Secretary of Defense) USAF (Department of the Air Force)	$175,945,612	0.3%	Rank history: #32 in FY2022, #22 in FY2023, #29 in FY2024 and not on the FY2025 list; up 49 since FY2020.
55	Octo Consulting Group Inc. 3 awardees, including Sevatec LLC and Connexta, LLC Top agencies GSA (General Services Administration) DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$172,911,064	0.3%	Rank history: #31 in FY2022, #26 in FY2023 and not on the FY2024–FY2025 lists; up 100 since FY2020.
56	Carahsoft Technology Corp Top agencies USDA (Department of Agriculture) USAF (Department of the Air Force) DOJ (Department of Justice)	$169,830,283	0.3%	Rank history: #47 in FY2022, #37 in FY2023, #22 in FY2024 and #22 in FY2025; down 4 since FY2020.
57	By Light Professional It Services LLC 5 awardees, including Phacil, LLC, Cole Engineering Services, Inc. and Metova Federal, LLC Top agencies DISA (Defense Information Systems Agency) VA (Department of Veterans Affairs) Army (Department of the Army)	$163,413,503	0.3%	Rank history: #69 in FY2022, #97 in FY2023, #98 in FY2024 and not on the FY2025 list; down 7 since FY2020.
58	Rei Systems, Inc. Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security) GSA (General Services Administration)	$163,413,065	0.3%	Rank history: not on the FY2022–FY2023 lists, #82 in FY2024 and #75 in FY2025; up 57 since FY2020.
59	Countertrade Products, Inc. Top agencies Army (Department of the Army) DISA (Defense Information Systems Agency) USAF (Department of the Air Force)	$162,266,958	0.3%	Rank history: #61 in FY2022, #30 in FY2023, #33 in FY2024 and #37 in FY2025; unchanged since FY2020.
60	Smartronix LLC 3 awardees, including Datastrong, LLC Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs) DOI (Department of the Interior)	$159,797,016	0.2%	Rank history: #63 in FY2022, #87 in FY2023 and not on the FY2024–FY2025 lists; up 36 since FY2020.
61	Cognosante Holdings, LLC 3 awardees, including Cognosante MVH LLC, Cognosante, LLC and Cognosante Cds, LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DOL (Department of Labor)	$153,759,325	0.2%	Rank history: #46 in FY2022, #35 in FY2023, #75 in FY2024 and not on the FY2025 list; up 33 since FY2020.
62	Govsmart, Inc. Top agencies SBA (Small Business Administration) HHS (Department of Health and Human Services) USSOCOM (United States Special Operations Command)	$153,186,037	0.2%	Rank history: #54 in FY2022, #50 in FY2023, #46 in FY2024 and #41 in FY2025; up 1 since FY2020.
63	T-Rex Solutions LLC Top agencies Commerce (Department of Commerce)	$149,783,728	0.2%	Rank history: not on the FY2022–FY2025 lists; down 49 since FY2020.
64	Guidehouse Inc. Top agencies HHS (Department of Health and Human Services) DOS (Department of State) DOJ (Department of Justice)	$142,515,980	0.2%	Rank history: #55 in FY2022, #54 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
65	Semanticbits LLC Top agencies HHS (Department of Health and Human Services) GSA (General Services Administration) NRC (Nuclear Regulatory Commission)	$142,266,117	0.2%	Rank history: #67 in FY2022 and not on the FY2023–FY2025 lists; up 49 since FY2020.
66	Advanced Computer Concepts, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DISA (Defense Information Systems Agency)	$138,860,482	0.2%	Rank history: #66 in FY2022, #42 in FY2023, #31 in FY2024 and #34 in FY2025; down 1 since FY2020.
67	All Points Logistics, LLC Top agencies VA (Department of Veterans Affairs) NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$135,962,731	0.2%	Rank history: #75 in FY2022, #71 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
68	Gartner, Inc. 4 awardees, including Personnel Decisions Research Institutes, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) OPM (Office of Personnel Management)	$130,942,577	0.2%	Rank history: #72 in FY2022, #62 in FY2023, #60 in FY2024 and not on the FY2025 list; up 5 since FY2020.
69	Ventech Solutions Inc. 2 awardees Top agencies HHS (Department of Health and Human Services) USAF (Department of the Air Force) DHA (Defense Health Agency)	$129,624,423	0.2%	Rank history: #73 in FY2022 and not on the FY2023–FY2025 lists; unchanged since FY2020.
70	I3 Federal LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) NASA (National Aeronautics and Space Administration)	$127,679,984	0.2%	Rank history: #74 in FY2022, #64 in FY2023 and not on the FY2024–FY2025 lists; up 70 since FY2020.
71	Verizon Communications Inc. 4 awardees, including Cellco Partnership, MCI Communications Services LLC and Verizon Business Network Services LLC Top agencies DOJ (Department of Justice) USDA (Department of Agriculture) DOI (Department of the Interior)	$127,447,394	0.2%	Rank history: not on the FY2022–FY2025 lists; up 8 since FY2020.
72	B 3 Group, LLC Top agencies VA (Department of Veterans Affairs)	$127,074,379	0.2%	Rank history: not on the FY2022–FY2023 lists, #68 in FY2024 and not on the FY2025 list; up 30 since FY2020.
73	Karsun Solutions LLC Top agencies DOT (Department of Transportation) DHS (Department of Homeland Security) GSA (General Services Administration)	$121,537,476	0.2%	Rank history: #79 in FY2022, #69 in FY2023, #89 in FY2024 and #96 in FY2025; up 18 since FY2020.
74	VET Advisor LLC Through Three Wire Systems, LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) HHS (Department of Health and Human Services)	$115,938,061	0.2%	Rank history: not on the FY2022–FY2025 lists; down 10 since FY2020.
75	Maximus Federal Technology Solutions, LLC Top agencies DHS (Department of Homeland Security) SEC (Securities and Exchange Commission) Army (Department of the Army)	$114,860,706	0.2%	Rank history: not on the FY2022–FY2025 lists; down 21 since FY2020.
76	Regan Technologies Corp Top agencies VA (Department of Veterans Affairs) DOE (Department of Energy) HHS (Department of Health and Human Services)	$114,643,052	0.2%	Rank history: not on the FY2022–FY2025 lists; up 80 since FY2020.
77	Medical Science & Computing, LLC Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$114,233,000	0.2%	Rank history: not on the FY2022–FY2025 lists; up 20 since FY2020.
78	Anacapa Micro Products, Inc. Top agencies DHS (Department of Homeland Security) Commerce (Department of Commerce) HHS (Department of Health and Human Services)	$112,455,245	0.2%	Rank history: not on the FY2022–FY2025 lists; up 30 since FY2020.
79	BAE Systems PLC 3 awardees, including BAE Systems Technology Solutions & Services Inc. and BAE Systems Information and Electronic Systems Integration Inc. Top agencies DOJ (Department of Justice) USAF (Department of the Air Force) DOL (Department of Labor)	$109,723,231	0.2%	Rank history: not on the FY2022 list, #53 in FY2023, #49 in FY2024 and #51 in FY2025; up 19 since FY2020.
80	Favor Techconsulting, LLC Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security) DOL (Department of Labor)	$109,108,812	0.2%	Rank history: #68 in FY2022, #77 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2020.
81	Vae, Inc. Top agencies DISA (Defense Information Systems Agency) DOS (Department of State) Army (Department of the Army)	$107,518,024	0.2%	Rank history: not on the FY2022 list, #89 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2020.
82	22Nd Century Technologies, Inc. Top agencies Commerce (Department of Commerce) DLA (Defense Logistics Agency) DODEA (Department of Defense Education Activity)	$106,947,573	0.2%	Rank history: #65 in FY2022 and not on the FY2023–FY2025 lists; up 7 since FY2020.
83	Sterling Computers Corporation Top agencies DLA (Defense Logistics Agency) HHS (Department of Health and Human Services) Navy (Department of the Navy)	$105,899,961	0.2%	Rank history: #100 in FY2022 and not on the FY2023–FY2025 lists; unchanged since FY2020.
84	Tetra Tech, Inc. 7 awardees, including Segue Technologies, Inc., Bluewater Federal Solutions, Inc. and Advanced Management Technology, Inc. Top agencies USAF (Department of the Air Force) DISA (Defense Information Systems Agency) DOT (Department of Transportation)	$105,316,252	0.2%	Rank history: #91 in FY2022 and not on the FY2023–FY2025 lists; up 195 since FY2020.
85	Digital Management LLC Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) HUD (Department of Housing and Urban Development)	$103,969,241	0.2%	Rank history: not on the FY2022–FY2025 lists; down 14 since FY2020.
86	HP, Inc. 3 awardees, including HPI Federal LLC Top agencies Navy (Department of the Navy)	$103,454,438	0.2%	Rank history: #71 in FY2022, #58 in FY2023 and not on the FY2024–FY2025 lists; up 9 since FY2020.
87	Planned Systems International Inc. 2 awardees, including Advanced Technologies and Laboratories (Atl) International, Inc. Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) DHA (Defense Health Agency)	$102,208,825	0.2%	Rank history: #88 in FY2022 and not on the FY2023–FY2025 lists; up 43 since FY2020.
88	Criterion Systems, L.L.C. Top agencies DOE (Department of Energy) USDA (Department of Agriculture) Commerce (Department of Commerce)	$101,837,168	0.2%	Rank history: not on the FY2022–FY2025 lists; up 2 since FY2020.
89	Akira Technologies Inc. Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services) DISA (Defense Information Systems Agency)	$101,508,050	0.2%	Rank history: #78 in FY2022, #83 in FY2023 and not on the FY2024–FY2025 lists; up 21 since FY2020.
90	Unisys Corporation Top agencies Treasury (Department of the Treasury) DISA (Defense Information Systems Agency) Commerce (Department of Commerce)	$101,289,651	0.2%	Rank history: not on the FY2022–FY2025 lists; down 63 since FY2020.
91	At&T Inc. 9 awardees, including Att Mobility LLC, Tyto Government Solutions Inc. and At&T Enterprises, LLC Top agencies DOS (Department of State) Treasury (Department of the Treasury) HUD (Department of Housing and Urban Development)	$100,076,130	0.2%	Rank history: not on the FY2022–FY2025 lists; up 8 since FY2020.
92	Teksynap Corporation Top agencies DTRA (Defense Threat Reduction Agency) DLA (Defense Logistics Agency) NRC (Nuclear Regulatory Commission)	$99,557,743	0.2%	Rank history: #59 in FY2022, #66 in FY2023, #55 in FY2024 and #79 in FY2025; up 17 since FY2020.
93	Arrow Electronics, Inc. 4 awardees, including Immixtechnology Inc. and EC America, Inc. Top agencies Treasury (Department of the Treasury) SSA (Social Security Administration) HHS (Department of Health and Human Services)	$99,123,973	0.2%	Rank history: #94 in FY2022, #92 in FY2023, #78 in FY2024 and #97 in FY2025; up 11 since FY2020.
94	Halfaker and Associates, LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) Army (Department of the Army)	$99,069,792	0.2%	Rank history: not on the FY2022–FY2025 lists; down 41 since FY2020.
95	Johnson Controls Security Solutions LLC 6 awardees, including Johnson Controls Building Automation Systems, LLC, Johnson Controls Inc. and Johnson Controls Fire Protection LP Top agencies Army (Department of the Army) WHS (DOD Washington Headquarters Service) USAF (Department of the Air Force)	$98,273,747	0.2%	Rank history: #56 in FY2022 and not on the FY2023–FY2025 lists; up 5 since FY2020.
96	Ma Federal, Inc. 2 awardees, including Igov Technologies, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DHS (Department of Homeland Security)	$97,488,134	0.2%	Rank history: not on the FY2022–FY2025 lists; up 47 since FY2020.
97	Agile Defense, LLC Top agencies Army (Department of the Army) DARPA (Defense Advanced Research Projects Agency) Navy (Department of the Navy)	$97,470,378	0.2%	Rank history: #89 in FY2022, not on the FY2023–FY2024 lists and #81 in FY2025; down 22 since FY2020.
98	Customer Value Partners, LLC Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) DOS (Department of State)	$95,935,303	0.1%	Rank history: not on the FY2022–FY2025 lists; up 20 since FY2020.
99	Software Information Resource Corp. Top agencies USAF (Department of the Air Force) HHS (Department of Health and Human Services) Navy (Department of the Navy)	$95,906,850	0.1%	Rank history: #96 in FY2022 and not on the FY2023–FY2025 lists; up 43 since FY2020.
100	Powertrain, Inc. Top agencies OPM (Office of Personnel Management) USAF (Department of the Air Force)	$91,243,658	0.1%	Rank history: not on the FY2022–FY2025 lists; up 22 since FY2020.

Rankings for the codes under NAICS 54151

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 $64.1 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.

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