Top 100 Contractors in NAICS 518: Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Goldschmitt-Cri LLC Top agencies SBA (Small Business Administration)	$290,625,347	10.2%	Rank history: #21 in FY2022 and not on the FY2023–FY2025 lists; up 3 since FY2020.
2	Leidos Holdings, Inc. 4 awardees, including Leidos, Inc. Top agencies HHS (Department of Health and Human Services) DOT (Department of Transportation) DHS (Department of Homeland Security)	$194,933,467	6.9%	Rank history: #1 in FY2022, #1 in FY2023, #1 in FY2024 and #4 in FY2025; unchanged since FY2020.
3	Perspecta Inc. 4 awardees, including Peraton Enterprise Solutions LLC, Knight Point Systems, LLC and Peraton Technology Services Inc. Top agencies HUD (Department of Housing and Urban Development) DHS (Department of Homeland Security) GSA (General Services Administration)	$137,027,959	4.8%	Rank history: not on the FY2022–FY2025 lists; down 2 since FY2020.
4	General Dynamics Corporation 5 awardees, including General Dynamics Information Technology Inc. and General Dynamics One Source LLC Top agencies VA (Department of Veterans Affairs) DOT (Department of Transportation) HHS (Department of Health and Human Services)	$126,396,809	4.4%	Rank history: #6 in FY2022, #2 in FY2023, #2 in FY2024 and #9 in FY2025; down 1 since FY2020.
5	International Business Machines Corporation 2 awardees Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$105,692,887	3.7%	Rank history: #5 in FY2022, #4 in FY2023, #5 in FY2024 and #2 in FY2025; up 2 since FY2020.
6	HP Enterprise Services LLC 4 awardees, including Peraton Enterprise Solutions LLC, Knight Point Systems, LLC and Peraton Inc. Top agencies DHRA (Defense Human Resources Activity) HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$84,766,118	3.0%	Rank history: #2 in FY2022, #3 in FY2023, #21 in FY2024 and not on the FY2025 list; up 73 since FY2020.
7	Dataminr, Inc. Top agencies USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$77,856,467	2.7%	Rank history: #9 in FY2022, #10 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
8	Ba-Zai JV, LLC Top agencies DOJ (Department of Justice) HHS (Department of Health and Human Services)	$74,825,228	2.6%	Rank history: #10 in FY2022, #15 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2020.
9	Blue Cross & Blue Shield of South Carolina Through Companion Data Services LLC Top agencies HHS (Department of Health and Human Services)	$71,836,467	2.5%	Rank history: #8 in FY2022, #13 in FY2023, #55 in FY2024 and not on the FY2025 list; down 4 since FY2020.
10	Palantir Technologies Inc. 2 awardees, including Palantir USG Inc. Top agencies USAF (Department of the Air Force) Commerce (Department of Commerce)	$58,250,000	2.0%	Rank history: #4 in FY2022, #12 in FY2023, not on the FY2024 list and #37 in FY2025; up 75 since FY2020.
11	CACI International Inc. 3 awardees, including Caci Inc - Federal and Caci Nss, LLC Top agencies DHS (Department of Homeland Security)	$54,349,075	1.9%	Rank history: not on the FY2022–FY2025 lists; up 18 since FY2020.
12	Westat, Inc. Top agencies HHS (Department of Health and Human Services)	$46,395,258	1.6%	Rank history: #11 in FY2022, #11 in FY2023, #13 in FY2024 and #29 in FY2025; unchanged since FY2020.
13	Harvard Pilgrim Health Care, Inc. 2 awardees Top agencies HHS (Department of Health and Human Services)	$41,050,758	1.4%	Rank history: #13 in FY2022, #16 in FY2023, #17 in FY2024 and #30 in FY2025; up 6 since FY2020.
14	Pfsweb Inc. Through Priority Fulfillment Services, Inc. Top agencies Treasury (Department of the Treasury)	$36,199,187	1.3%	Rank history: #12 in FY2022, #9 in FY2023, #16 in FY2024 and not on the FY2025 list; up 30 since FY2020.
15	Amazon.com, Inc. Through Amazon Web Services, Inc. Top agencies GSA (General Services Administration) Navy (Department of the Navy) USAF (Department of the Air Force)	$35,123,178	1.2%	Rank history: #31 in FY2022, #6 in FY2023, #19 in FY2024 and not on the FY2025 list; up 12 since FY2020.
16	Intelsat General Communications LLC Top agencies Army (Department of the Army) DMA (Defense Media Activity) USAF (Department of the Air Force)	$32,174,757	1.1%	Rank history: #30 in FY2022 and not on the FY2023–FY2025 lists; up 317 since FY2020.
17	Northrop Grumman Corporation 2 awardees, including Northrop Grumman Systems Corporation Top agencies USAF (Department of the Air Force) HUD (Department of Housing and Urban Development)	$28,798,057	1.0%	Rank history: #20 in FY2022, #97 in FY2023 and not on the FY2024–FY2025 lists; up 11 since FY2020.
18	Science Applications International Corporation 3 awardees, including Engility Services, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$28,220,865	1.0%	Rank history: #7 in FY2022, not on the FY2023 list, #83 in FY2024 and #34 in FY2025; up 129 since FY2020.
19	The Logistics Co Incorporated Top agencies Army (Department of the Army)	$26,108,020	0.9%	Rank history: #46 in FY2022 and not on the FY2023–FY2025 lists; up 6 since FY2020.
20	Change Healthcare Technologies LLC 3 awardees, including Change Healthcare Holdings, Inc. and Change Healthcare Operations, LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$25,773,278	0.9%	Rank history: #27 in FY2022, #44 in FY2023, #46 in FY2024 and not on the FY2025 list; up 106 since FY2020.
21	Inserso Corporation Top agencies DHS (Department of Homeland Security)	$24,353,880	0.9%	Rank history: not on the FY2022–FY2025 lists; down 7 since FY2020.
22	Eagle Harbor, LLC Top agencies DOJ (Department of Justice)	$24,348,138	0.9%	Rank history: #16 in FY2022, #14 in FY2023, #8 in FY2024 and #12 in FY2025; up 15 since FY2020.
23	Fedresults, Inc. Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) DOI (Department of the Interior)	$23,511,247	0.8%	Rank history: #38 in FY2022, #48 in FY2023, #60 in FY2024 and #58 in FY2025; up 7 since FY2020.
24	Kbr, Inc. Through KBR Wyle Services, LLC Top agencies Commerce (Department of Commerce) Army (Department of the Army)	$23,482,494	0.8%	Rank history: #24 in FY2022, #29 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2020.
25	Thomson Reuters (Tax & Accounting) Inc. 3 awardees, including West Publishing Corporation and Thomson Reuters (Markets) LLC Top agencies DOJ (Department of Justice) PBGC (Pension Benefit Guaranty Corporation) Treasury (Department of the Treasury)	$21,456,677	0.8%	Rank history: #22 in FY2022, #57 in FY2023 and not on the FY2024–FY2025 lists; up 18 since FY2020.
26	UnitedHealth Group Incorporated 2 awardees, including The Lewin Group, Inc. and Optumrx Administrative Services, LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$21,303,635	0.7%	Rank history: #44 in FY2022, #60 in FY2023, #69 in FY2024 and not on the FY2025 list; up 46 since FY2020.
27	Solid State Scientific Corporation Top agencies USAF (Department of the Air Force)	$20,570,616	0.7%	Rank history: #19 in FY2022, #20 in FY2023, #24 in FY2024 and #23 in FY2025; up 15 since FY2020.
28	Accenture Federal Services LLC Top agencies USAF (Department of the Air Force) DHRA (Defense Human Resources Activity) Army (Department of the Army)	$20,505,429	0.7%	Rank history: #41 in FY2022 and not on the FY2023–FY2025 lists; up 30 since FY2020.
29	Riva Solutions Inc. Top agencies DOL (Department of Labor) Army (Department of the Army) ED (Department of Education)	$20,079,478	0.7%	Rank history: #25 in FY2022 and not on the FY2023–FY2025 lists; up 61 since FY2020.
30	IMG - Crown Energy Services Joint Venture, LLC Top agencies DOE (Department of Energy)	$19,487,339	0.7%	Rank history: #53 in FY2022, #31 in FY2023, #42 in FY2024 and #43 in FY2025; up 8 since FY2020.
31	Intelligent Waves LLC Top agencies USAF (Department of the Air Force)	$18,689,175	0.7%	Rank history: #15 in FY2022, #7 in FY2023, #25 in FY2024 and #64 in FY2025; unchanged since FY2020.
32	Anthem Inc. Through Wellpoint Federal Solutions, Inc. Top agencies HHS (Department of Health and Human Services)	$17,301,656	0.6%	Rank history: #66 in FY2022, #79 in FY2023 and not on the FY2024–FY2025 lists; up 22 since FY2020.
33	Reed Elsevier Inc. 4 awardees, including Relx Inc., Lexisnexis Special Services Inc. and Elsevier B.V. Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security) CFTC (Commodity Futures Trading Commission)	$17,154,154	0.6%	Rank history: #34 in FY2022 and not on the FY2023–FY2025 lists; up 43 since FY2020.
34	Chenega It Enterprise Services, LLC Top agencies EPA (Environmental Protection Agency)	$17,094,209	0.6%	Rank history: #67 in FY2022, #66 in FY2023, #43 in FY2024 and #48 in FY2025; up 2 since FY2020.
35	Deloitte LLP 3 awardees, including Deloitte Consulting LLP and Deloitte Financial Advisory Services LLP Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) DOL (Department of Labor)	$15,818,296	0.6%	Rank history: #74 in FY2022, #91 in FY2023 and not on the FY2024–FY2025 lists; up 49 since FY2020.
36	Koniag Management Solutions LLC Top agencies DECA (Defense Commissary Agency) ED (Department of Education)	$15,412,226	0.5%	Rank history: #26 in FY2022, #32 in FY2023, #35 in FY2024 and #47 in FY2025; new, not ranked in FY2020.
37	Manhattan Associates, Inc. Top agencies DHS (Department of Homeland Security)	$15,402,230	0.5%	Rank history: #29 in FY2022, #30 in FY2023, #32 in FY2024 and #25 in FY2025; new, not ranked in FY2020.
38	Acumen LLC Top agencies HHS (Department of Health and Human Services)	$14,868,794	0.5%	Rank history: #42 in FY2022, #49 in FY2023, #48 in FY2024 and #79 in FY2025; up 54 since FY2020.
39	At&T Enterprises, LLC Top agencies Army (Department of the Army)	$14,334,127	0.5%	Rank history: not on the FY2022–FY2025 lists; down 17 since FY2020.
40	Iqvia Inc. Through Iqvia Government Solutions Inc. Top agencies HHS (Department of Health and Human Services)	$14,310,237	0.5%	Rank history: #36 in FY2022, #39 in FY2023 and not on the FY2024–FY2025 lists; up 16 since FY2020.
41	Dev Technology Group Inc. Top agencies DHS (Department of Homeland Security)	$14,228,798	0.5%	Rank history: not on the FY2022–FY2025 lists; down 30 since FY2020.
42	Lhdtsv LLC Top agencies Commerce (Department of Commerce)	$14,038,326	0.5%	Rank history: #17 in FY2022, #26 in FY2023, #36 in FY2024 and #26 in FY2025; new, not ranked in FY2020.
43	BAE Systems PLC Through BAE Systems Technology Solutions & Services Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security)	$12,822,335	0.5%	Rank history: #47 in FY2022, #46 in FY2023, #51 in FY2024 and not on the FY2025 list; up 70 since FY2020.
44	Infotrend Incorporated Top agencies SEC (Securities and Exchange Commission)	$11,974,800	0.4%	Rank history: #55 in FY2022, #34 in FY2023, #75 in FY2024 and not on the FY2025 list; up 131 since FY2020.
45	Research Triangle Institute Top agencies HHS (Department of Health and Human Services)	$11,807,144	0.4%	Rank history: #45 in FY2022, #45 in FY2023, #41 in FY2024 and #45 in FY2025; up 6 since FY2020.
46	Govcio, LLC Top agencies VA (Department of Veterans Affairs) Treasury (Department of the Treasury)	$10,959,115	0.4%	Rank history: #14 in FY2022, #8 in FY2023, #9 in FY2024 and #8 in FY2025; new, not ranked in FY2020.
47	Oracle Corporation 2 awardees, including Oracle America, Inc. Top agencies USAF (Department of the Air Force) DFC (International Development Finance Corporation)	$10,896,031	0.4%	Rank history: #48 in FY2022, #41 in FY2023, #26 in FY2024 and not on the FY2025 list; up 2 since FY2020.
48	NTT Data Services Federal Government, LLC Top agencies NSF (National Science Foundation)	$10,289,590	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
49	Octo Consulting Group Inc. Through Sevatec LLC Top agencies DHS (Department of Homeland Security)	$9,943,800	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
50	Edgewater Federal Solutions, Inc. Top agencies DOE (Department of Energy)	$9,834,283	0.3%	Rank history: #49 in FY2022, #72 in FY2023, #65 in FY2024 and #73 in FY2025; up 3 since FY2020.
51	Descartes Labs, Inc. Top agencies Army (Department of the Army)	$9,732,578	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
52	Powtec Lintech LLC Top agencies DHA (Defense Health Agency)	$9,570,000	0.3%	Rank history: #97 in FY2022 and not on the FY2023–FY2025 lists; up 39 since FY2020.
53	Norsk Romsenter Through Direktoratet for Romvirksomhet Top agencies Commerce (Department of Commerce)	$9,371,304	0.3%	Rank history: #32 in FY2022, #38 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
54	Integrated Data Services, LLC Top agencies USAF (Department of the Air Force)	$9,276,875	0.3%	Rank history: #40 in FY2022, #43 in FY2023, #40 in FY2024 and #40 in FY2025; up 21 since FY2020.
55	Medidata Solutions Inc. Top agencies HHS (Department of Health and Human Services)	$9,059,463	0.3%	Rank history: #57 in FY2022, #47 in FY2023 and not on the FY2024–FY2025 lists; up 14 since FY2020.
56	Vion Corporation Top agencies Navy (Department of the Navy)	$8,877,056	0.3%	Rank history: #89 in FY2022, #98 in FY2023 and not on the FY2024–FY2025 lists; down 11 since FY2020.
57	Open San Consulting L.L.C. Top agencies OSD (Office of the Secretary of Defense)	$8,591,026	0.3%	Rank history: #59 in FY2022 and not on the FY2023–FY2025 lists; up 10 since FY2020.
58	DUN & Bradstreet Inc. Top agencies USAF (Department of the Air Force) EPA (Environmental Protection Agency)	$8,157,313	0.3%	Rank history: #100 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
59	Qualx, LLC Top agencies Army (Department of the Army) DOS (Department of State)	$8,058,694	0.3%	Rank history: #50 in FY2022, #59 in FY2023, #98 in FY2024 and not on the FY2025 list; down 7 since FY2020.
60	ACE Info Solutions LLC Through Guidehouse Digital LLC Top agencies DHS (Department of Homeland Security)	$8,001,131	0.3%	Rank history: not on the FY2022–FY2025 lists; up 186 since FY2020.
61	NEC Corporation Through NEC Corporation of America Top agencies DHS (Department of Homeland Security)	$7,950,000	0.3%	Rank history: #64 in FY2022, #64 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2020.
62	The IQ Business Group (PTY) Ltd Through The IQ Business Group, Inc. Top agencies DOI (Department of the Interior)	$7,635,848	0.3%	Rank history: #61 in FY2022, #71 in FY2023 and not on the FY2024–FY2025 lists; up 62 since FY2020.
63	Carahsoft Technology Corp Top agencies DOJ (Department of Justice) USAF (Department of the Air Force) NRC (Nuclear Regulatory Commission)	$7,565,220	0.3%	Rank history: #69 in FY2022, #99 in FY2023 and not on the FY2024–FY2025 lists; up 96 since FY2020.
64	Acuity Inc. Top agencies DHS (Department of Homeland Security)	$7,344,925	0.3%	Rank history: not on the FY2022–FY2025 lists; down 30 since FY2020.
65	Telos Corporation Top agencies USSOCOM (United States Special Operations Command)	$6,992,581	0.2%	Rank history: #65 in FY2022 and not on the FY2023–FY2025 lists; down 19 since FY2020.
66	Monkton, Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force)	$6,968,969	0.2%	Rank history: #37 in FY2022, #25 in FY2023, #22 in FY2024 and #11 in FY2025; unchanged since FY2020.
67	Colorado Regional Health Information Organization Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$6,897,773	0.2%	Rank history: not on the FY2022–FY2025 lists; up 228 since FY2020.
68	Alaska Northstar Resources LLC Top agencies USAF (Department of the Air Force)	$6,863,947	0.2%	Rank history: #33 in FY2022, #27 in FY2023, #23 in FY2024 and #36 in FY2025; up 67 since FY2020.
69	Agile Decision Sciences, LLC Top agencies HHS (Department of Health and Human Services)	$6,853,298	0.2%	Rank history: #68 in FY2022, #40 in FY2023, #66 in FY2024 and not on the FY2025 list; up 5 since FY2020.
70	Unisys Corporation Top agencies Army (Department of the Army)	$6,791,753	0.2%	Rank history: not on the FY2022–FY2025 lists; down 54 since FY2020.
71	Bytecubed, LLC Top agencies OSD (Office of the Secretary of Defense) WHS (DOD Washington Headquarters Service)	$6,668,917	0.2%	Rank history: not on the FY2022–FY2024 lists and #44 in FY2025; down 39 since FY2020.
72	The Boeing Company Through Jeppesen Foreflight, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$6,624,561	0.2%	Rank history: #18 in FY2022, #18 in FY2023, #20 in FY2024 and #18 in FY2025; down 49 since FY2020.
73	Sevatec LLC Top agencies DHS (Department of Homeland Security)	$6,367,028	0.2%	Rank history: not on the FY2022–FY2025 lists; down 26 since FY2020.
74	Doma Technologies, LLC Top agencies VA (Department of Veterans Affairs) DOI (Department of the Interior) USDA (Department of Agriculture)	$6,352,658	0.2%	Rank history: #35 in FY2022, #54 in FY2023 and not on the FY2024–FY2025 lists; down 10 since FY2020.
75	At&T Inc. 2 awardees, including At&T Enterprises, LLC Top agencies Army (Department of the Army)	$6,303,599	0.2%	Rank history: not on the FY2022–FY2025 lists; up 21 since FY2020.
76	Health Care Service Corporation, A Mutual Legal Reserve Company Through Availity, L.L.C. Top agencies VA (Department of Veterans Affairs)	$6,290,138	0.2%	Rank history: not on the FY2022–FY2025 lists; up 75 since FY2020.
77	Akamai Technologies Inc. Top agencies DHS (Department of Homeland Security) EOP (Executive Office of the President) EPA (Environmental Protection Agency)	$6,195,105	0.2%	Rank history: #76 in FY2022, #74 in FY2023, #78 in FY2024 and not on the FY2025 list; up 3 since FY2020.
78	Vertosoft, LLC Top agencies DOJ (Department of Justice) USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$6,164,332	0.2%	Rank history: #92 in FY2022 and not on the FY2023–FY2025 lists; down 60 since FY2020.
79	Rbr-Technologies, Inc. Top agencies DCSA (Defense Counterintelligence and Security Agency)	$6,031,924	0.2%	Rank history: not on the FY2022–FY2025 lists; up 22 since FY2020.
80	Nippon Telegraph and Telephone Corporation 2 awardees, including NTT Data Services Federal Government, LLC Top agencies DOJ (Department of Justice) NSF (National Science Foundation)	$5,920,895	0.2%	Rank history: not on the FY2022–FY2025 lists; down 32 since FY2020.
81	Iron Mountain Incorporated 2 awardees, including Iron Mountain Data Centers, LLC and Iron Mountain Information Management LLC Top agencies SEC (Securities and Exchange Commission) OPM (Office of Personnel Management) Treasury (Department of the Treasury)	$5,918,168	0.2%	Rank history: #51 in FY2022, not on the FY2023 list, #89 in FY2024 and not on the FY2025 list; unchanged since FY2020.
82	Icahn School of Medicine at Mount Sinai Top agencies HHS (Department of Health and Human Services)	$5,872,023	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
83	CVS Health Corporation Through CVS Healthspire Payor & Life Sciences LLC Top agencies HHS (Department of Health and Human Services)	$5,809,159	0.2%	Rank history: #73 in FY2022, #77 in FY2023, not on the FY2024 list and #71 in FY2025; up 79 since FY2020.
84	Verisign, Inc. Top agencies GSA (General Services Administration)	$5,760,000	0.2%	Rank history: not on the FY2022–FY2025 lists; up 22 since FY2020.
85	Information Management Services, Inc. Top agencies HHS (Department of Health and Human Services)	$5,623,508	0.2%	Rank history: not on the FY2022–FY2025 lists; down 26 since FY2020.
86	CGI Technologies and Solutions Inc. Through CGI Federal Inc. Top agencies RRB (Railroad Retirement Board) EPA (Environmental Protection Agency)	$5,382,174	0.2%	Rank history: #90 in FY2022 and not on the FY2023–FY2025 lists; up 37 since FY2020.
87	Mantech International Corporation 2 awardees, including Mantech Advanced Systems International, Inc. Top agencies DHS (Department of Homeland Security)	$5,352,696	0.2%	Rank history: not on the FY2022–FY2025 lists; down 74 since FY2020.
88	International Health Terminology Standards Development Organisation Top agencies HHS (Department of Health and Human Services)	$5,329,501	0.2%	Rank history: #77 in FY2022, #84 in FY2023, #88 in FY2024 and #93 in FY2025; down 1 since FY2020.
89	Vastec Inc. Top agencies OPM (Office of Personnel Management) DOL (Department of Labor) Treasury (Department of the Treasury)	$5,004,077	0.2%	Rank history: not on the FY2022–FY2024 lists and #33 in FY2025; up 229 since FY2020.
90	Huna Totem Corp Through Distributed Computing System Solutions Provider, Inc. Top agencies SEC (Securities and Exchange Commission)	$4,945,587	0.2%	Rank history: not on the FY2022 list, #78 in FY2023 and not on the FY2024–FY2025 lists; up 62 since FY2020.
91	Nova-Dine LLC Through DDC It Services LLC Top agencies DCSA (Defense Counterintelligence and Security Agency)	$4,721,946	0.2%	Rank history: #23 in FY2022, #42 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
92	Battelle Memorial Institute Top agencies USAF (Department of the Air Force)	$4,522,100	0.2%	Rank history: #75 in FY2022, #87 in FY2023, #95 in FY2024 and not on the FY2025 list; up 2 since FY2020.
93	Oil Price Information Service LLC 3 awardees, including IHS Global Inc., Markit North America Inc. and R.l. Polk & Co Top agencies Navy (Department of the Navy) NASA (National Aeronautics and Space Administration) DHS (Department of Homeland Security)	$4,520,733	0.2%	Rank history: #87 in FY2022 and not on the FY2023–FY2025 lists; up 9 since FY2020.
94	The Chenega Corporation 2 awardees, including Chenega Healthcare Services LLC and Chenega Applied Solutions, LLC Top agencies SEC (Securities and Exchange Commission) NRC (Nuclear Regulatory Commission) Treasury (Department of the Treasury)	$4,436,211	0.2%	Rank history: #63 in FY2022, #69 in FY2023 and not on the FY2024–FY2025 lists; up 78 since FY2020.
95	Xellia Pharmaceuticals USA LLC Through Availity, L.L.C. Top agencies VA (Department of Veterans Affairs)	$4,312,561	0.2%	Rank history: #58 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
96	Applied Enterprise Management Corporation Top agencies ED (Department of Education)	$4,102,746	0.1%	Rank history: #91 in FY2022 and not on the FY2023–FY2025 lists; up 7 since FY2020.
97	Yardi Systems, LLC Top agencies HUD (Department of Housing and Urban Development)	$4,101,831	0.1%	Rank history: #71 in FY2022, #50 in FY2023, #50 in FY2024 and #49 in FY2025; down 32 since FY2020.
98	Alaska Native Government Services LLC Through Copper River Technologies, LLC Top agencies WHS (DOD Washington Headquarters Service)	$4,062,355	0.1%	Rank history: #54 in FY2022, #62 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2020.
99	Arctic Slope Regional Corporation 2 awardees, including Asrc Federal Data Solutions, LLC Top agencies HHS (Department of Health and Human Services)	$3,901,412	0.1%	Rank history: #86 in FY2022, not on the FY2023–FY2024 lists and #39 in FY2025; down 2 since FY2020.
100	Leidos, Inc. Top agencies DOT (Department of Transportation)	$3,889,351	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.

Rankings for the codes under NAICS 518

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 $2.85 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