Top 100 Contractors in NAICS 61171: Educational Support Services, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Institute of International Education Inc. Top agencies DHRA (Defense Human Resources Activity)	$33,050,000	6.4%	Rank history: #2 in FY2022, #1 in FY2023, #1 in FY2024 and #2 in FY2025; new, not ranked in FY2020.
2	Human Resources Research Organization (Humrro) Top agencies DHRA (Defense Human Resources Activity) Army (Department of the Army) DOS (Department of State)	$29,121,800	5.6%	Rank history: #1 in FY2022, #2 in FY2023, #2 in FY2024 and #1 in FY2025; down 1 since FY2020.
3	GP Strategies Corporation Top agencies Army (Department of the Army)	$17,878,514	3.5%	Rank history: #3 in FY2022, #9 in FY2023, #7 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
4	Indtai, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$17,772,659	3.4%	Rank history: #5 in FY2022, #5 in FY2023, #3 in FY2024 and #4 in FY2025; down 2 since FY2020.
5	Education Development Center, Inc. Top agencies USAID (US Agency for International Development) ED (Department of Education)	$17,017,918	3.3%	Rank history: #10 in FY2022, #21 in FY2023, #36 in FY2024 and not on the FY2025 list; up 4 since FY2020.
6	Techwerks LLC Top agencies VA (Department of Veterans Affairs)	$13,063,520	2.5%	Rank history: #20 in FY2022, #23 in FY2023 and not on the FY2024–FY2025 lists; up 14 since FY2020.
7	American Institutes for Research In the Behavioral Sciences Top agencies ED (Department of Education)	$11,400,000	2.2%	Rank history: #22 in FY2022, #19 in FY2023, #20 in FY2024 and #38 in FY2025; down 1 since FY2020.
8	Flatter, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$10,673,755	2.1%	Rank history: #9 in FY2022, #8 in FY2023, #22 in FY2024 and not on the FY2025 list; unchanged since FY2020.
9	Network & Simulation Technologies Inc. Top agencies Navy (Department of the Navy)	$10,093,612	1.9%	Rank history: #6 in FY2022, #10 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
10	Cybermedia Technologies, LLC Top agencies OSD (Office of the Secretary of Defense) WHS (DOD Washington Headquarters Service)	$9,294,342	1.8%	Rank history: #7 in FY2022, #11 in FY2023, #8 in FY2024 and #7 in FY2025; up 12 since FY2020.
11	Victor 12, Inc. Top agencies VA (Department of Veterans Affairs)	$9,184,676	1.8%	Rank history: #11 in FY2022, #6 in FY2023, #6 in FY2024 and #6 in FY2025; up 7 since FY2020.
12	NCS Pearson Inc. 4 awardees, including Ged Testing Service LLC Top agencies DOI (Department of the Interior) DODEA (Department of Defense Education Activity) DOJ (Department of Justice)	$8,847,627	1.7%	Rank history: #13 in FY2022, #36 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2020.
13	L2 Defense Inc. Top agencies Army (Department of the Army)	$8,581,394	1.7%	Rank history: #18 in FY2022, #13 in FY2023, #10 in FY2024 and #16 in FY2025; up 43 since FY2020.
14	Potawatomi Business Development Corp Through Advancia Technologies, LLC Top agencies Navy (Department of the Navy)	$8,526,616	1.6%	Rank history: #8 in FY2022 and not on the FY2023–FY2025 lists; down 3 since FY2020.
15	Northrop Grumman Corporation Through Northrop Grumman Systems Corporation Top agencies DHS (Department of Homeland Security)	$8,126,510	1.6%	Rank history: not on the FY2022–FY2025 lists; down 10 since FY2020.
16	Amentum Services, Inc. Top agencies Army (Department of the Army)	$7,980,308	1.5%	Rank history: #17 in FY2022 and not on the FY2023–FY2025 lists; down 12 since FY2020.
17	General Dynamics Corporation Through General Dynamics One Source LLC Top agencies DHS (Department of Homeland Security)	$7,974,748	1.5%	Rank history: not on the FY2022–FY2025 lists; down 2 since FY2020.
18	Native Forward Scholars Fund Top agencies DOI (Department of the Interior)	$7,550,000	1.5%	Rank history: #16 in FY2022 and not on the FY2023–FY2025 lists; up 15 since FY2020.
19	Creative Associates International, Inc. Top agencies USAID (US Agency for International Development)	$7,106,349	1.4%	Rank history: not on the FY2022–FY2023 lists, #83 in FY2024 and not on the FY2025 list; down 5 since FY2020.
20	Wested Top agencies ED (Department of Education) DOI (Department of the Interior)	$7,040,374	1.4%	Rank history: #14 in FY2022, #17 in FY2023, #21 in FY2024 and #29 in FY2025; up 4 since FY2020.
21	Paragon Tec, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$6,868,042	1.3%	Rank history: #15 in FY2022 and not on the FY2023–FY2025 lists; up 10 since FY2020.
22	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$6,816,984	1.3%	Rank history: #26 in FY2022, #27 in FY2023, #24 in FY2024 and #31 in FY2025; up 21 since FY2020.
23	Nationpoint LLC Top agencies Army (Department of the Army)	$6,776,862	1.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
24	Tgb3 Enterprises LLC Top agencies DHS (Department of Homeland Security)	$5,758,594	1.1%	Rank history: #25 in FY2022, #18 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2020.
25	Board of Governers State University System of Florida 3 awardees, including Florida State University and University of Central Florida Research Foundation, Inc. Top agencies ED (Department of Education) VA (Department of Veterans Affairs) NASA (National Aeronautics and Space Administration)	$5,660,977	1.1%	Rank history: #23 in FY2022, #14 in FY2023, #18 in FY2024 and not on the FY2025 list; up 1 since FY2020.
26	Education Northwest Top agencies ED (Department of Education) CNCS (Corporation for National and Community Service)	$5,631,987	1.1%	Rank history: not on the FY2022–FY2025 lists; down 1 since FY2020.
27	Nonpublic Educational Services, Inc. Top agencies ED (Department of Education)	$5,591,982	1.1%	Rank history: #12 in FY2022, #22 in FY2023, #12 in FY2024 and #15 in FY2025; down 8 since FY2020.
28	American Council On Education Top agencies DHRA (Defense Human Resources Activity) DHS (Department of Homeland Security) OSD (Office of the Secretary of Defense)	$5,361,679	1.0%	Rank history: #31 in FY2022, #32 in FY2023, #30 in FY2024 and #19 in FY2025; down 5 since FY2020.
29	American Council On the Teaching of Foreign Languages, Inc. Top agencies Army (Department of the Army) DODEA (Department of Defense Education Activity) DOS (Department of State)	$5,354,647	1.0%	Rank history: #61 in FY2022, #15 in FY2023, #11 in FY2024 and #11 in FY2025; up 7 since FY2020.
30	Mathematica Inc Top agencies ED (Department of Education)	$4,941,268	1.0%	Rank history: #28 in FY2022, #25 in FY2023, #27 in FY2024 and not on the FY2025 list; up 66 since FY2020.
31	BNP Education Partners LLC Top agencies ED (Department of Education)	$4,836,000	0.9%	Rank history: not on the FY2022–FY2025 lists; down 2 since FY2020.
32	Sri International Top agencies ED (Department of Education)	$4,783,987	0.9%	Rank history: not on the FY2022–FY2025 lists; down 2 since FY2020.
33	Research Triangle Institute Top agencies USAID (US Agency for International Development)	$4,723,869	0.9%	Rank history: #27 in FY2022, #20 in FY2023, #19 in FY2024 and not on the FY2025 list; down 30 since FY2020.
34	Mcrel International Top agencies ED (Department of Education)	$4,618,772	0.9%	Rank history: #29 in FY2022, #26 in FY2023, #28 in FY2024 and not on the FY2025 list; down 7 since FY2020.
35	Fathers Incorporated Top agencies HHS (Department of Health and Human Services)	$4,566,133	0.9%	Rank history: not on the FY2022–FY2025 lists; down 3 since FY2020.
36	D7, LLC Top agencies Army (Department of the Army)	$4,072,866	0.8%	Rank history: #24 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
37	Queen Rania Teacher Academy Top agencies USAID (US Agency for International Development)	$3,628,500	0.7%	Rank history: not on the FY2022–FY2025 lists; up 8 since FY2020.
38	University of New Mexico 2 awardees Top agencies DOI (Department of the Interior) HHS (Department of Health and Human Services)	$3,523,622	0.7%	Rank history: #35 in FY2022, #40 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2020.
39	II Corps Consultants, Inc. Top agencies Navy (Department of the Navy)	$3,479,546	0.7%	Rank history: #30 in FY2022, #24 in FY2023, #14 in FY2024 and #76 in FY2025; up 2 since FY2020.
40	Snap, Inc. Top agencies DHS (Department of Homeland Security)	$3,474,852	0.7%	Rank history: #42 in FY2022, #60 in FY2023 and not on the FY2024–FY2025 lists; down 19 since FY2020.
41	Serco North America (Holdings) Inc Through Serco Services Inc. Top agencies Army (Department of the Army)	$3,443,409	0.7%	Rank history: #41 in FY2022, #30 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
42	The 21St Century Partnership for Stem Education Top agencies USAID (US Agency for International Development)	$3,207,635	0.6%	Rank history: #32 in FY2022, #31 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2020.
43	College Entrance Examination Board 2 awardees Top agencies DHRA (Defense Human Resources Activity) Navy (Department of the Navy) DHS (Department of Homeland Security)	$2,946,909	0.6%	Rank history: #60 in FY2022, #48 in FY2023, #64 in FY2024 and #21 in FY2025; up 1 since FY2020.
44	Huntington Ingalls Industries, Inc. 2 awardees, including HII Mission Technologies Corp and HII Fleet Support Group LLC Top agencies Navy (Department of the Navy) DSCA (Defense Security Cooperation Agency) DHS (Department of Homeland Security)	$2,636,508	0.5%	Rank history: #21 in FY2022, #12 in FY2023, #16 in FY2024 and #22 in FY2025; up 53 since FY2020.
45	Ibex It Business Experts LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$2,609,188	0.5%	Rank history: #49 in FY2022, #42 in FY2023, #68 in FY2024 and #54 in FY2025; down 10 since FY2020.
46	Aztec Software, LLC Top agencies DOJ (Department of Justice)	$2,527,500	0.5%	Rank history: #47 in FY2022, #45 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
47	A P Ventures, LLC Top agencies USAF (Department of the Air Force) USDA (Department of Agriculture)	$2,508,042	0.5%	Rank history: #64 in FY2022, #71 in FY2023, #72 in FY2024 and #63 in FY2025; up 20 since FY2020.
48	Yayasan Pendidikan Internasional Indonesia Top agencies USAID (US Agency for International Development)	$2,137,750	0.4%	Rank history: not on the FY2022–FY2023 lists, #100 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
49	Advanced Technology Logistics, Inc. Top agencies Army (Department of the Army)	$2,029,528	0.4%	Rank history: #57 in FY2022, #55 in FY2023, not on the FY2024 list and #74 in FY2025; up 63 since FY2020.
50	Prometric LLC Top agencies DHRA (Defense Human Resources Activity) Treasury (Department of the Treasury)	$1,826,271	0.4%	Rank history: not on the FY2022–FY2025 lists; unchanged since FY2020.
51	Golden Key Group, LLC Top agencies USAF (Department of the Air Force)	$1,777,018	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
52	Patchplus Consulting Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,572,675	0.3%	Rank history: #46 in FY2022 and not on the FY2023–FY2025 lists; up 27 since FY2020.
53	National Center for Families Learning Inc. Top agencies DOI (Department of the Interior)	$1,511,745	0.3%	Rank history: #62 in FY2022, #67 in FY2023, #65 in FY2024 and #85 in FY2025; new, not ranked in FY2020.
54	Vectrona-Ita Solutions LLC Top agencies Navy (Department of the Navy)	$1,487,516	0.3%	Rank history: #63 in FY2022, #64 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
55	Oneida Nation Through Sustainment & Restoration Services, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$1,468,732	0.3%	Rank history: #44 in FY2022, #52 in FY2023 and not on the FY2024–FY2025 lists; up 218 since FY2020.
56	Mks2 LLC Top agencies Navy (Department of the Navy)	$1,461,177	0.3%	Rank history: #56 in FY2022 and not on the FY2023–FY2025 lists; down 5 since FY2020.
57	Arctic Slope Regional Corporation Through Asrc Federal Cyber, LLC Top agencies DHA (Defense Health Agency)	$1,434,387	0.3%	Rank history: #51 in FY2022, #88 in FY2023, not on the FY2024 list and #82 in FY2025; up 35 since FY2020.
58	American Heart Association, Inc. Top agencies VA (Department of Veterans Affairs) USSOCOM (United States Special Operations Command)	$1,360,326	0.3%	Rank history: #70 in FY2022, #74 in FY2023, #77 in FY2024 and #91 in FY2025; up 22 since FY2020.
59	Chenega It Enterprise Services, LLC Top agencies DOI (Department of the Interior)	$1,343,701	0.3%	Rank history: #75 in FY2022, #93 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2020.
60	Actualized Business Solutions Inc. Top agencies USAF (Department of the Air Force)	$1,295,000	0.3%	Rank history: #37 in FY2022, #70 in FY2023, #40 in FY2024 and #25 in FY2025; new, not ranked in FY2020.
61	Techglobal Inc. Top agencies Commerce (Department of Commerce)	$1,207,792	0.2%	Rank history: #38 in FY2022, #44 in FY2023, #86 in FY2024 and #36 in FY2025; new, not ranked in FY2020.
62	Parents AS Teachers National Center, Inc. Top agencies DOI (Department of the Interior)	$1,195,853	0.2%	Rank history: #71 in FY2022, #75 in FY2023, #75 in FY2024 and #95 in FY2025; new, not ranked in FY2020.
63	The Trustees of Columbia University In the City of New York Top agencies HHS (Department of Health and Human Services)	$1,189,330	0.2%	Rank history: not on the FY2022 list, #76 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2020.
64	Second Avenue Software, Inc. Top agencies Commerce (Department of Commerce)	$1,138,367	0.2%	Rank history: #69 in FY2022, #61 in FY2023, #57 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
65	Juarez & Associates, Inc. Top agencies USAID (US Agency for International Development)	$1,093,654	0.2%	Rank history: not on the FY2022–FY2025 lists; up 6 since FY2020.
66	Integrated Defense Applications LLC Top agencies Army (Department of the Army)	$1,081,016	0.2%	Rank history: not on the FY2022–FY2025 lists; up 121 since FY2020.
67	Kratos Defense & Security Solutions, Inc. Through Kratos Technology & Training Solutions, Inc. Top agencies USAF (Department of the Air Force)	$1,080,500	0.2%	Rank history: #52 in FY2022, #37 in FY2023 and not on the FY2024–FY2025 lists; down 28 since FY2020.
68	Jtg, Inc. Top agencies Army (Department of the Army)	$1,060,524	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
69	Stichting I.e.a. Secretariaat Nederland Top agencies ED (Department of Education)	$1,058,653	0.2%	Rank history: not on the FY2022 list, #43 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
70	Standards Work Inc. Top agencies ED (Department of Education)	$1,021,033	0.2%	Rank history: #65 in FY2022, not on the FY2023 list, #88 in FY2024 and not on the FY2025 list; down 6 since FY2020.
71	University Enterprises Corporation At Csusb Top agencies DHS (Department of Homeland Security)	$1,017,589	0.2%	Rank history: #77 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
72	Supply Chain Vistas Inc. Top agencies VA (Department of Veterans Affairs)	$998,800	0.2%	Rank history: #78 in FY2022, #82 in FY2023, #95 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
73	Oroday, Inc. Top agencies Navy (Department of the Navy)	$972,187	0.2%	Rank history: not on the FY2022–FY2025 lists; down 15 since FY2020.
74	Marco Federal Services LLC Top agencies Army (Department of the Army)	$961,924	0.2%	Rank history: #67 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
75	Infinisource Consulting Solutions, Inc. Top agencies USAF (Department of the Air Force)	$961,766	0.2%	Rank history: #81 in FY2022 and not on the FY2023–FY2025 lists; up 2 since FY2020.
76	Technical Assent, LLC Top agencies VA (Department of Veterans Affairs)	$954,799	0.2%	Rank history: #84 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
77	Gartner, Inc. 2 awardees, including Personnel Decisions Research Institutes, LLC Top agencies Treasury (Department of the Treasury) CFPB (Consumer Financial Protection Bureau) DLA (Defense Logistics Agency)	$949,111	0.2%	Rank history: #92 in FY2022, #50 in FY2023 and not on the FY2024–FY2025 lists; up 107 since FY2020.
78	World Institute of Leadership and Learning, Ltd Top agencies CFPB (Consumer Financial Protection Bureau)	$946,781	0.2%	Rank history: not on the FY2022 list, #72 in FY2023, #98 in FY2024 and not on the FY2025 list; up 20 since FY2020.
79	The Chenega Corporation Through Chenega Analytic Business Solutions, LLC Top agencies DHS (Department of Homeland Security)	$940,001	0.2%	Rank history: #53 in FY2022, #35 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
80	Cognia Inc. Top agencies DOI (Department of the Interior)	$924,320	0.2%	Rank history: not on the FY2022–FY2023 lists, #54 in FY2024 and #66 in FY2025; new, not ranked in FY2020.
81	Program Management and Technology Services, Inc. Top agencies USAF (Department of the Air Force)	$906,240	0.2%	Rank history: #76 in FY2022, #65 in FY2023, #67 in FY2024 and #50 in FY2025; up 6 since FY2020.
82	Technical Vocational Training Academy Top agencies USAID (US Agency for International Development)	$900,000	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
83	Crowned Grace Inc. Top agencies Army (Department of the Army)	$899,954	0.2%	Rank history: #88 in FY2022 and not on the FY2023–FY2025 lists; up 43 since FY2020.
84	Alexton Incorporated Top agencies NASA (National Aeronautics and Space Administration)	$897,265	0.2%	Rank history: not on the FY2022 list, #92 in FY2023 and not on the FY2024–FY2025 lists; up 26 since FY2020.
85	Southern Association of Colleges and Schools Commission on C Through Cognia Inc. Top agencies DOI (Department of the Interior) DODEA (Department of Defense Education Activity)	$869,696	0.2%	Rank history: #48 in FY2022, #39 in FY2023 and not on the FY2024–FY2025 lists; up 55 since FY2020.
86	The National Registry of Emergency Medical Technicians Inc. Top agencies DHA (Defense Health Agency) Army (Department of the Army) USSOCOM (United States Special Operations Command)	$867,067	0.2%	Rank history: #79 in FY2022, not on the FY2023 list, #96 in FY2024 and #81 in FY2025; up 53 since FY2020.
87	Itsc Secure Solutions, LLC Top agencies Army (Department of the Army)	$865,537	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
88	ITI Solutions, Inc. Top agencies USAF (Department of the Air Force)	$838,925	0.2%	Rank history: #87 in FY2022, #87 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
89	Asrc Federal Cyber, LLC Top agencies Navy (Department of the Navy)	$832,813	0.2%	Rank history: not on the FY2022–FY2023 lists, #94 in FY2024 and not on the FY2025 list; down 32 since FY2020.
90	Livingworks Education USA Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$790,908	0.2%	Rank history: #59 in FY2022, #53 in FY2023, not on the FY2024 list and #45 in FY2025; up 13 since FY2020.
91	PTG International, Inc. Top agencies HUD (Department of Housing and Urban Development) NSF (National Science Foundation)	$778,424	0.2%	Rank history: not on the FY2022–FY2025 lists; down 18 since FY2020.
92	Alta Language Services Inc. Top agencies Army (Department of the Army)	$733,041	0.1%	Rank history: #89 in FY2022, #100 in FY2023, #97 in FY2024 and #80 in FY2025; down 11 since FY2020.
93	Blueforce, Inc. Top agencies DOS (Department of State)	$722,288	0.1%	Rank history: not on the FY2022–FY2025 lists; down 8 since FY2020.
94	Marick Group LLC Top agencies DOJ (Department of Justice)	$706,468	0.1%	Rank history: #66 in FY2022 and not on the FY2023–FY2025 lists; up 288 since FY2020.
95	CSM Solutions Inc. Top agencies Army (Department of the Army)	$655,414	0.1%	Rank history: #55 in FY2022 and not on the FY2023–FY2025 lists; down 29 since FY2020.
96	Siegfried Kreth Top agencies Army (Department of the Army)	$648,235	0.1%	Rank history: not on the FY2022 list, #98 in FY2023 and not on the FY2024–FY2025 lists; up 13 since FY2020.
97	Applied Training Solutions, LLC Top agencies Army (Department of the Army)	$642,955	0.1%	Rank history: #50 in FY2022, #46 in FY2023, #50 in FY2024 and #27 in FY2025; down 48 since FY2020.
98	Huron Consulting Group Incorporated Through Huron Consulting Services LLC Top agencies VA (Department of Veterans Affairs)	$629,974	0.1%	Rank history: not on the FY2022–FY2025 lists; up 1 since FY2020.
99	Launchtech, LLC Top agencies Army (Department of the Army)	$626,961	0.1%	Rank history: not on the FY2022–FY2024 lists and #99 in FY2025; new, not ranked in FY2020.
100	General Dynamics One Source LLC Top agencies DHS (Department of Homeland Security)	$607,443	0.1%	Rank history: not on the FY2022–FY2025 lists; down 46 since FY2020.

Rankings for the codes under NAICS 61171

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 $518 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