Top 100 Contractors in NAICS 61171: Educational Support Services, FY2022

Name: Top 100 Contractors in NAICS 61171: Educational Support Services, FY2022
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2021 – Sep 30, 2022 Code page on GovTribe

The top 10 won 34% of FY2022 NAICS 61171 contract dollars

Contract obligations: $472,670,522 Net of deobligations, by contracts coded NAICS 61171 or a code under it
Contractors: 979 Parent companies with an obligation
Largest contractor: Human Resources Research Organization (Humrro) $31.6 million, 6.1% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Human Resources Research Organization (Humrro) Top agencies DHRA (Defense Human Resources Activity) DOS (Department of State)	$31,606,729	6.1%	Rank history: #2 in FY2021, #2 in FY2023, #2 in FY2024 and #1 in FY2025; up 1 since FY2021.
2	Institute of International Education Inc. Top agencies DHRA (Defense Human Resources Activity)	$30,475,000	5.9%	Rank history: #1 in FY2021, #1 in FY2023, #1 in FY2024 and #2 in FY2025; down 1 since FY2021.
3	GP Strategies Corporation Top agencies Army (Department of the Army)	$24,147,478	4.7%	Rank history: #3 in FY2021, #9 in FY2023, #7 in FY2024 and not on the FY2025 list; unchanged since FY2021.
4	Global Business Solutions, Llc. Top agencies USAF (Department of the Air Force)	$17,194,399	3.3%	Rank history: not on the FY2021 list, #4 in FY2023, #9 in FY2024 and #8 in FY2025; new.
5	Indtai, Inc. 2 awardees Top agencies Army (Department of the Army)	$14,579,329	2.8%	Rank history: #4 in FY2021, #5 in FY2023, #3 in FY2024 and #4 in FY2025; down 1 since FY2021.
6	Network & Simulation Technologies Inc. 2 awardees Top agencies Navy (Department of the Navy)	$13,721,880	2.6%	Rank history: #9 in FY2021, #10 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
7	Cybermedia Technologies, LLC Top agencies OSD (Office of the Secretary of Defense)	$11,626,393	2.2%	Rank history: #10 in FY2021, #11 in FY2023, #8 in FY2024 and #7 in FY2025; up 3 since FY2021.
8	Potawatomi Business Development Corp Through Advancia Technologies, LLC Top agencies Navy (Department of the Navy)	$11,332,293	2.2%	Rank history: #14 in FY2021 and not on the FY2023–FY2025 lists; up 6 since FY2021.
9	Flatter, Inc. Top agencies USAF (Department of the Air Force)	$11,114,866	2.1%	Rank history: #8 in FY2021, #8 in FY2023, #22 in FY2024 and not on the FY2025 list; down 1 since FY2021.
10	Education Development Center, Inc. Top agencies USAID (US Agency for International Development) ED (Department of Education) DOJ (Department of Justice)	$10,187,267	2.0%	Rank history: #5 in FY2021, #21 in FY2023, #36 in FY2024 and not on the FY2025 list; down 5 since FY2021.
11	Victor 12, Inc. Top agencies VA (Department of Veterans Affairs)	$9,706,083	1.9%	Rank history: #11 in FY2021, #6 in FY2023, #6 in FY2024 and #6 in FY2025; unchanged since FY2021.
12	Nonpublic Educational Services, Inc. Top agencies ED (Department of Education)	$9,598,189	1.9%	Rank history: #27 in FY2021, #22 in FY2023, #12 in FY2024 and #15 in FY2025; up 15 since FY2021.
13	NCS Pearson Inc. 4 awardees, including Ged Testing Service LLC Top agencies DOI (Department of the Interior) DODEA (Department of Defense Education Activity) DCSA (Defense Counterintelligence and Security Agency)	$9,479,480	1.8%	Rank history: #12 in FY2021, #36 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2021.
14	Wested Top agencies ED (Department of Education) DOI (Department of the Interior)	$9,153,649	1.8%	Rank history: #20 in FY2021, #17 in FY2023, #21 in FY2024 and #29 in FY2025; up 6 since FY2021.
15	Paragon Tec, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$8,150,272	1.6%	Rank history: #21 in FY2021 and not on the FY2023–FY2025 lists; up 6 since FY2021.
16	Native Forward Scholars Fund Top agencies DOI (Department of the Interior)	$8,138,399	1.6%	Rank history: #18 in FY2021 and not on the FY2023–FY2025 lists; up 2 since FY2021.
17	Amentum Services, Inc. Top agencies Army (Department of the Army)	$7,692,188	1.5%	Rank history: #16 in FY2021 and not on the FY2023–FY2025 lists; down 1 since FY2021.
18	L2 Defense Inc. Top agencies Army (Department of the Army)	$6,879,415	1.3%	Rank history: #13 in FY2021, #13 in FY2023, #10 in FY2024 and #16 in FY2025; down 5 since FY2021.
19	Ahtna Netiye' Inc. Through Akhi, LLC Top agencies Army (Department of the Army)	$6,579,540	1.3%	Rank history: not on the FY2021 list, #94 in FY2023 and not on the FY2024–FY2025 lists; new.
20	Techwerks LLC Top agencies VA (Department of Veterans Affairs)	$6,214,978	1.2%	Rank history: #6 in FY2021, #23 in FY2023 and not on the FY2024–FY2025 lists; down 14 since FY2021.
21	Huntington Ingalls Industries, Inc. Through HII Mission Technologies Corp Top agencies DSCA (Defense Security Cooperation Agency) Navy (Department of the Navy)	$6,157,615	1.2%	Rank history: #44 in FY2021, #12 in FY2023, #16 in FY2024 and #22 in FY2025; up 23 since FY2021.
22	American Institutes for Research In the Behavioral Sciences Top agencies ED (Department of Education)	$5,948,772	1.1%	Rank history: #7 in FY2021, #19 in FY2023, #20 in FY2024 and #38 in FY2025; down 15 since FY2021.
23	Board of Governers State University System of Florida 2 awardees, including Florida State University Top agencies ED (Department of Education) USAID (US Agency for International Development)	$5,631,608	1.1%	Rank history: #25 in FY2021, #14 in FY2023, #18 in FY2024 and not on the FY2025 list; up 2 since FY2021.
24	D7, LLC Top agencies Army (Department of the Army)	$5,426,190	1.0%	Rank history: #36 in FY2021 and not on the FY2023–FY2025 lists; up 12 since FY2021.
25	Tgb3 Enterprises LLC Top agencies DHS (Department of Homeland Security)	$5,337,337	1.0%	Rank history: #24 in FY2021, #18 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2021.
26	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies USAF (Department of the Air Force)	$5,313,637	1.0%	Rank history: #22 in FY2021, #27 in FY2023, #24 in FY2024 and #31 in FY2025; down 4 since FY2021.
27	Research Triangle Institute Top agencies USAID (US Agency for International Development)	$5,000,000	1.0%	Rank history: #33 in FY2021, #20 in FY2023, #19 in FY2024 and not on the FY2025 list; up 6 since FY2021.
28	Mathematica Inc Top agencies ED (Department of Education)	$4,889,603	0.9%	Rank history: #30 in FY2021, #25 in FY2023, #27 in FY2024 and not on the FY2025 list; up 2 since FY2021.
29	Mcrel International Top agencies ED (Department of Education)	$4,560,025	0.9%	Rank history: #34 in FY2021, #26 in FY2023, #28 in FY2024 and not on the FY2025 list; up 5 since FY2021.
30	II Corps Consultants Inc 2 awardees Top agencies Navy (Department of the Navy)	$4,419,009	0.9%	Rank history: #39 in FY2021, #24 in FY2023, #14 in FY2024 and #76 in FY2025; up 9 since FY2021.
31	American Council On Education Top agencies DHRA (Defense Human Resources Activity) DHS (Department of Homeland Security) OSD (Office of the Secretary of Defense)	$4,410,774	0.9%	Rank history: #28 in FY2021, #32 in FY2023, #30 in FY2024 and #19 in FY2025; down 3 since FY2021.
32	The 21St Century Partnership for Stem Education Top agencies USAID (US Agency for International Development)	$4,343,472	0.8%	Rank history: #42 in FY2021, #31 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2021.
33	Metro Accounting & Professional Services, LLC Top agencies USAF (Department of the Air Force)	$4,316,778	0.8%	Rank history: not on the FY2021 list, not on the FY2023 list, #31 in FY2024 and #17 in FY2025; new.
34	Mackin Book Company Top agencies DODEA (Department of Defense Education Activity)	$3,183,026	0.6%	Rank history: not on the FY2021 list, #47 in FY2023, #49 in FY2024 and #41 in FY2025; new.
35	University of New Mexico 2 awardees Top agencies DOI (Department of the Interior)	$3,047,197	0.6%	Rank history: #38 in FY2021, #40 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
36	Serco Services Inc. Top agencies GAO (Government Accountability Office) Army (Department of the Army)	$3,018,158	0.6%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
37	Actualized Business Solutions Inc 2 awardees Top agencies USAF (Department of the Air Force)	$3,009,595	0.6%	Rank history: #60 in FY2021, #70 in FY2023, #40 in FY2024 and #25 in FY2025; up 23 since FY2021.
38	Techglobal Inc. Top agencies Commerce (Department of Commerce)	$2,984,381	0.6%	Rank history: #61 in FY2021, #44 in FY2023, #86 in FY2024 and #36 in FY2025; up 23 since FY2021.
39	Act Inc. Top agencies DOJ (Department of Justice)	$2,902,640	0.6%	Rank history: not on the FY2021 list, #51 in FY2023 and not on the FY2024–FY2025 lists; new.
40	Upbrainery Technologies LLC Top agencies DODEA (Department of Defense Education Activity)	$2,860,000	0.6%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
41	Serco North America (Holdings) Inc Through Serco Services Inc. Top agencies Army (Department of the Army) GAO (Government Accountability Office)	$2,826,375	0.5%	Rank history: #41 in FY2021, #30 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2021.
42	Snap, Inc. Top agencies DHS (Department of Homeland Security)	$2,822,774	0.5%	Rank history: #40 in FY2021, #60 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2021.
43	Digital Promise Global Top agencies NSF (National Science Foundation)	$2,695,442	0.5%	Rank history: not on the FY2021 list, #69 in FY2023, #56 in FY2024 and not on the FY2025 list; new.
44	Oneida Nation Through Sustainment & Restoration Services, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$2,595,311	0.5%	Rank history: #55 in FY2021, #52 in FY2023 and not on the FY2024–FY2025 lists; up 11 since FY2021.
45	CAE Inc. Through CAE USA Inc. Top agencies USAF (Department of the Air Force)	$2,586,782	0.5%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 449 since FY2021.
46	Patchplus Consulting Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$2,546,269	0.5%	Rank history: #52 in FY2021 and not on the FY2023–FY2025 lists; up 6 since FY2021.
47	Aztec Software, LLC Top agencies DOJ (Department of Justice)	$2,527,500	0.5%	Rank history: #46 in FY2021, #45 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2021.
48	Southern Association of Colleges and Schools Commission on C Through Cognia Inc. Top agencies DODEA (Department of Defense Education Activity) DOI (Department of the Interior)	$2,315,888	0.4%	Rank history: #85 in FY2021, #39 in FY2023 and not on the FY2024–FY2025 lists; up 37 since FY2021.
49	Ibex It Business Experts LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$2,277,606	0.4%	Rank history: #45 in FY2021, #42 in FY2023, #68 in FY2024 and #54 in FY2025; down 4 since FY2021.
50	Applied Training Solutions, LLC Top agencies Army (Department of the Army)	$2,233,509	0.4%	Rank history: #97 in FY2021, #46 in FY2023, #50 in FY2024 and #27 in FY2025; up 47 since FY2021.
51	Arctic Slope Regional Corporation Through Asrc Federal Cyber, LLC Top agencies DHA (Defense Health Agency) Navy (Department of the Navy)	$2,132,617	0.4%	Rank history: #57 in FY2021, #88 in FY2023, not on the FY2024 list and #82 in FY2025; up 6 since FY2021.
52	Kratos Defense & Security Solutions, Inc. Through Kratos Technology & Training Solutions, Inc. Top agencies USAF (Department of the Air Force)	$2,107,250	0.4%	Rank history: #67 in FY2021, #37 in FY2023 and not on the FY2024–FY2025 lists; up 15 since FY2021.
53	The Chenega Corporation Through Chenega Analytic Business Solutions, LLC Top agencies Army (Department of the Army) DHS (Department of Homeland Security)	$2,103,042	0.4%	Rank history: #79 in FY2021, #35 in FY2023 and not on the FY2024–FY2025 lists; up 26 since FY2021.
54	JLC Solutions LLC Top agencies HHS (Department of Health and Human Services)	$2,028,982	0.4%	Rank history: not on the FY2021 list, #41 in FY2023, #44 in FY2024 and #56 in FY2025; up 142 since FY2021.
55	CSM Solutions Inc. Top agencies Army (Department of the Army)	$1,974,182	0.4%	Rank history: #95 in FY2021 and not on the FY2023–FY2025 lists; up 40 since FY2021.
56	Mks2 LLC Top agencies Navy (Department of the Navy)	$1,969,447	0.4%	Rank history: #56 in FY2021 and not on the FY2023–FY2025 lists; unchanged since FY2021.
57	Advanced Technology Logistics, Inc. Top agencies Army (Department of the Army)	$1,935,661	0.4%	Rank history: #49 in FY2021, #55 in FY2023, not on the FY2024 list and #74 in FY2025; down 8 since FY2021.
58	Jackson Pierce Public Affairs Inc. Top agencies USDA (Department of Agriculture)	$1,927,139	0.4%	Rank history: not on the FY2021 list, #33 in FY2023 and not on the FY2024–FY2025 lists; new.
59	Livingworks Education USA Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$1,913,791	0.4%	Rank history: #90 in FY2021, #53 in FY2023, not on the FY2024 list and #45 in FY2025; up 31 since FY2021.
60	College Entrance Examination Board 2 awardees Top agencies DHRA (Defense Human Resources Activity) DHS (Department of Homeland Security) Navy (Department of the Navy)	$1,832,532	0.4%	Rank history: #43 in FY2021, #48 in FY2023, #64 in FY2024 and #21 in FY2025; down 17 since FY2021.
61	American Council On the Teaching of Foreign Languages, Inc. 2 awardees, including Actfl Professional Services, Llc. Top agencies Army (Department of the Army) DODEA (Department of Defense Education Activity)	$1,618,957	0.3%	Rank history: #29 in FY2021, #15 in FY2023, #11 in FY2024 and #11 in FY2025; down 32 since FY2021.
62	National Center for Families Learning Inc. Top agencies DOI (Department of the Interior)	$1,557,097	0.3%	Rank history: #53 in FY2021, #67 in FY2023, #65 in FY2024 and #85 in FY2025; down 9 since FY2021.
63	Vectrona-Ita Solutions LLC Top agencies Navy (Department of the Navy)	$1,497,899	0.3%	Rank history: #54 in FY2021, #64 in FY2023 and not on the FY2024–FY2025 lists; down 9 since FY2021.
64	A P Ventures, LLC Top agencies USAF (Department of the Air Force)	$1,428,422	0.3%	Rank history: #47 in FY2021, #71 in FY2023, #72 in FY2024 and #63 in FY2025; down 17 since FY2021.
65	Standards Work Inc. Top agencies ED (Department of Education)	$1,398,868	0.3%	Rank history: #70 in FY2021, not on the FY2023 list, #88 in FY2024 and not on the FY2025 list; up 5 since FY2021.
66	Marick Group LLC Top agencies DOJ (Department of Justice)	$1,391,244	0.3%	Rank history: #94 in FY2021 and not on the FY2023–FY2025 lists; up 28 since FY2021.
67	Marco Federal Services LLC Top agencies Army (Department of the Army)	$1,390,193	0.3%	Rank history: #74 in FY2021 and not on the FY2023–FY2025 lists; up 7 since FY2021.
68	C2 Alaska, LLC Top agencies USAF (Department of the Air Force)	$1,378,704	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
69	Second Avenue Software, Inc. Top agencies Commerce (Department of Commerce)	$1,303,401	0.3%	Rank history: #64 in FY2021, #61 in FY2023, #57 in FY2024 and not on the FY2025 list; down 5 since FY2021.
70	American Heart Association, Inc. Top agencies VA (Department of Veterans Affairs)	$1,279,692	0.2%	Rank history: #58 in FY2021, #74 in FY2023, #77 in FY2024 and #91 in FY2025; down 12 since FY2021.
71	Parents AS Teachers National Center, Inc. Top agencies DOI (Department of the Interior)	$1,227,207	0.2%	Rank history: #62 in FY2021, #75 in FY2023, #75 in FY2024 and #95 in FY2025; down 9 since FY2021.
72	Youth Empowers Service LLC Top agencies Army (Department of the Army)	$1,156,281	0.2%	Rank history: not on the FY2021 list, #91 in FY2023, #81 in FY2024 and #61 in FY2025; new.
73	Echelon Services, LLC Top agencies HHS (Department of Health and Human Services)	$1,119,023	0.2%	Rank history: not on the FY2021 list, #79 in FY2023, #82 in FY2024 and #71 in FY2025; new.
74	Cherokee Nation Defense Solutions LLC Top agencies Army (Department of the Army)	$1,114,764	0.2%	Rank history: not on the FY2021 list, #78 in FY2023 and not on the FY2024–FY2025 lists; new.
75	Chenega It Enterprise Services, LLC Top agencies DOI (Department of the Interior)	$1,080,439	0.2%	Rank history: #59 in FY2021, #93 in FY2023 and not on the FY2024–FY2025 lists; down 16 since FY2021.
76	Program Management and Technology Services, Inc. Top agencies USAF (Department of the Air Force)	$1,050,870	0.2%	Rank history: #81 in FY2021, #65 in FY2023, #67 in FY2024 and #50 in FY2025; up 5 since FY2021.
77	University Enterprises Corporation At Csusb Top agencies DHS (Department of Homeland Security)	$1,020,226	0.2%	Rank history: #71 in FY2021 and not on the FY2023–FY2025 lists; down 6 since FY2021.
78	Supply Chain Vistas Inc. Top agencies VA (Department of Veterans Affairs)	$1,018,576	0.2%	Rank history: #72 in FY2021, #82 in FY2023, #95 in FY2024 and not on the FY2025 list; down 6 since FY2021.
79	The National Registry of Emergency Medical Technicians Inc. Top agencies Army (Department of the Army) USSOCOM (United States Special Operations Command) DHA (Defense Health Agency)	$1,002,947	0.2%	Rank history: #86 in FY2021, not on the FY2023 list, #96 in FY2024 and #81 in FY2025; up 7 since FY2021.
80	American Society for Microbiology Top agencies HHS (Department of Health and Human Services)	$990,600	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
81	Infinisource Consulting Solutions, Inc. Top agencies USAF (Department of the Air Force)	$985,862	0.2%	Rank history: #75 in FY2021 and not on the FY2023–FY2025 lists; down 6 since FY2021.
82	ABK Ventures Inc. Top agencies VA (Department of Veterans Affairs)	$985,268	0.2%	Rank history: not on the FY2021 list, #84 in FY2023, #71 in FY2024 and #52 in FY2025; up 84 since FY2021.
83	Catapult Learning Patriot LLC Top agencies DODEA (Department of Defense Education Activity)	$979,347	0.2%	Rank history: not on the FY2021 list, #54 in FY2023 and not on the FY2024–FY2025 lists; up 41 since FY2021.
84	Technical Assent, LLC Top agencies VA (Department of Veterans Affairs)	$955,174	0.2%	Rank history: #76 in FY2021 and not on the FY2023–FY2025 lists; down 8 since FY2021.
85	Guardian Defense Group, Inc. Top agencies Army (Department of the Army)	$899,252	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
86	Empower Educational Consulting, LLC Top agencies DOI (Department of the Interior)	$884,541	0.2%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #98 in FY2025; up 55 since FY2021.
87	ITI Solutions, Inc. Top agencies USAF (Department of the Air Force)	$883,097	0.2%	Rank history: #88 in FY2021, #87 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2021.
88	Crowned Grace Inc. Top agencies Army (Department of the Army)	$878,737	0.2%	Rank history: #83 in FY2021 and not on the FY2023–FY2025 lists; down 5 since FY2021.
89	Alta Language Services Inc. Top agencies Army (Department of the Army)	$873,235	0.2%	Rank history: #92 in FY2021, #100 in FY2023, #97 in FY2024 and #80 in FY2025; up 3 since FY2021.
90	Threat Management Group, L.L.C. Top agencies DHS (Department of Homeland Security)	$831,219	0.2%	Rank history: not on the FY2021 list, not on the FY2023 list, #63 in FY2024 and #51 in FY2025; up 17 since FY2021.
91	AFC Development Inc. Top agencies HHS (Department of Health and Human Services)	$805,307	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
92	Gartner, Inc. 2 awardees, including Personnel Decisions Research Institutes, LLC Top agencies DHS (Department of Homeland Security) DOL (Department of Labor)	$804,548	0.2%	Rank history: #77 in FY2021, #50 in FY2023 and not on the FY2024–FY2025 lists; down 15 since FY2021.
93	Stratcomm, Inc. Top agencies SSA (Social Security Administration)	$795,672	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
94	The Dcode Group Inc. Top agencies Navy (Department of the Navy) DTRA (Defense Threat Reduction Agency) USAF (Department of the Air Force)	$793,500	0.2%	Rank history: not on the FY2021 list, #34 in FY2023, #55 in FY2024 and #64 in FY2025; new.
95	Festo Didactic Inc. Top agencies Navy (Department of the Navy)	$733,821	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
96	Kent Campa & Kate Inc. Top agencies Navy (Department of the Navy)	$727,476	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 13 since FY2021.
97	Frontline National LLC Top agencies USAF (Department of the Air Force)	$706,474	0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #86 in FY2025; up 51 since FY2021.
98	Educational Testing Service Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$696,210	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 6 since FY2021.
99	Vantage Point Consulting Inc. Top agencies Army (Department of the Army)	$691,006	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 11 since FY2021.
100	LSG Educational Services LLC Top agencies DOI (Department of the Interior)	$682,352	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 13 since FY2021.

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100 of 979 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 61171

Code	Net obligations	Largest contractor
611710 Educational Support Services	$472,670,522	Human Resources Research Organization (Humrro)

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 2022 ran Oct 1, 2021 – Sep 30, 2022. 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 FY2021. "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 FY2021 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 NAICS 61171 contractors in FY2022?

1. Human Resources Research Organization (Humrro) ($31.6M), 2. Institute of International Education Inc. ($30.5M), 3. GP Strategies Corporation ($24.1M), 4. Global Business Solutions, Llc. ($17.2M), 5. Indtai, Inc. ($14.6M), 6. Network & Simulation Technologies Inc. ($13.7M), 7. Cybermedia Technologies, LLC ($11.6M), 8. Potawatomi Business Development Corp ($11.3M), 9. Flatter, Inc. ($11.1M), 10. Education Development Center, Inc. ($10.2M).

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