Top 100 Contractors in NAICS 519190: All Other Information Services, FY2021

Name: Top 100 Contractors in NAICS 519190: All Other Information Services, FY2021
Creator: GovTribe

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

The top 10 won 55% of FY2021 NAICS 519190 contract dollars

Contract obligations: $312,625,950 Net of deobligations, by contracts coded NAICS 519190
Contractors: 302 Parent companies with an obligation
Largest contractor: Maximus Inc. $40.2 million, 12.3% 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	Maximus Inc. Through Maximus Federal Services, Inc. Top agencies HHS (Department of Health and Human Services) CFPB (Consumer Financial Protection Bureau)	$40,193,624	12.3%	Rank history: not on the FY2022–FY2025 lists; up 1 since FY2020.
2	Thomson Reuters (Tax & Accounting) Inc. 4 awardees, including West Publishing Corporation and Thomson Reuters (Markets) LLC Top agencies DHS (Department of Homeland Security) SEC (Securities and Exchange Commission) DOJ (Department of Justice)	$34,403,033	10.5%	Rank history: #1 in FY2022, #2 in FY2023, #16 in FY2024 and not on the FY2025 list; up 5 since FY2020.
3	Reed Elsevier Inc. 7 awardees, including Relx Inc., Elsevier Inc. and Elsevier B.V. Top agencies DHA (Defense Health Agency) SSA (Social Security Administration) SEC (Securities and Exchange Commission)	$31,402,499	9.6%	Rank history: #2 in FY2022, #46 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
4	American Chemical Society Top agencies Commerce (Department of Commerce) EPA (Environmental Protection Agency) USDA (Department of Agriculture)	$18,860,378	5.8%	Rank history: #3 in FY2022, #3 in FY2023, #1 in FY2024 and not on the FY2025 list; up 281 since FY2020.
5	DUN & Bradstreet Inc. Top agencies DHS (Department of Homeland Security) Commerce (Department of Commerce) GAO (Government Accountability Office)	$11,878,237	3.6%	Rank history: #5 in FY2022, #6 in FY2023, #58 in FY2024 and not on the FY2025 list; up 7 since FY2020.
6	Ebsco Industries Inc. 2 awardees Top agencies DHA (Defense Health Agency) Commerce (Department of Commerce) VA (Department of Veterans Affairs)	$11,842,267	3.6%	Rank history: #6 in FY2022, #5 in FY2023, #8 in FY2024 and #12 in FY2025; up 7 since FY2020.
7	Oil Price Information Service LLC 4 awardees, including IHS Global Inc., R.l. Polk & Co and OAG Aviation Worldwide LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DOS (Department of State)	$9,594,193	2.9%	Rank history: #7 in FY2022, #4 in FY2023, #48 in FY2024 and not on the FY2025 list; up 1 since FY2020.
8	Cox Subscriptions, Inc. Top agencies HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$8,272,480	2.5%	Rank history: #10 in FY2022, #7 in FY2023, #4 in FY2024 and #2 in FY2025; up 30 since FY2020.
9	Indigenous Technologies, LLC Top agencies DOS (Department of State)	$7,422,589	2.3%	Rank history: #11 in FY2022 and not on the FY2023–FY2025 lists; up 6 since FY2020.
10	Cambridge Information Group Inc. Through Proquest LLC Top agencies Commerce (Department of Commerce) Navy (Department of the Navy) DHS (Department of Homeland Security)	$7,407,314	2.3%	Rank history: #43 in FY2022, #8 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2020.
11	Bloomberg LP 2 awardees, including Bloomberg Industry Group, Inc. and Bloomberg Finance LP Top agencies Commerce (Department of Commerce) DHS (Department of Homeland Security) SEC (Securities and Exchange Commission)	$7,092,991	2.2%	Rank history: #9 in FY2022, #9 in FY2023, #22 in FY2024 and #21 in FY2025; up 7 since FY2020.
12	Clarivate Analytics (US) LLC Top agencies Commerce (Department of Commerce) USDA (Department of Agriculture) DOE (Department of Energy)	$6,542,450	2.0%	Rank history: #15 in FY2022, #11 in FY2023, #7 in FY2024 and not on the FY2025 list; up 55 since FY2020.
13	Korber Supply Chain US Inc. Through Infios US, Inc. Top agencies VA (Department of Veterans Affairs)	$6,505,975	2.0%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
14	Gartner, Inc. 2 awardees Top agencies DOS (Department of State) DHS (Department of Homeland Security) Commerce (Department of Commerce)	$5,904,357	1.8%	Rank history: #31 in FY2022, #31 in FY2023, #21 in FY2024 and #35 in FY2025; down 4 since FY2020.
15	Wolters Kluwer N.V. 5 awardees, including Ovid Technologies, Inc., Wolters Kluwer Financial Services, Inc. and CCH Incorporated Top agencies DHA (Defense Health Agency) RRB (Railroad Retirement Board) VA (Department of Veterans Affairs)	$5,740,802	1.8%	Rank history: #16 in FY2022, #10 in FY2023 and not on the FY2024–FY2025 lists; up 93 since FY2020.
16	Bureau Van Dijk Electronic Publishing Inc. Top agencies Treasury (Department of the Treasury) OSD (Office of the Secretary of Defense) USITC (International Trade Commission)	$5,662,487	1.7%	Rank history: #14 in FY2022 and not on the FY2023–FY2025 lists; up 6 since FY2020.
17	Arrow Alliance Industries, LLC Top agencies DOI (Department of the Interior)	$5,374,839	1.6%	Rank history: #8 in FY2022, #13 in FY2023, #17 in FY2024 and #5 in FY2025; new, not ranked in FY2020.
18	Leidos Holdings, Inc. Through Leidos, Inc. Top agencies HUD (Department of Housing and Urban Development)	$5,262,473	1.6%	Rank history: #17 in FY2022 and not on the FY2023–FY2025 lists; down 7 since FY2020.
19	West Publishing Corporation Top agencies SSA (Social Security Administration) DOJ (Department of Justice) OPM (Office of Personnel Management)	$4,343,977	1.3%	Rank history: not on the FY2022–FY2025 lists; down 14 since FY2020.
20	Fiscalnote, Inc. 2 awardees, including Cq-Roll Call, Inc. Top agencies Commerce (Department of Commerce) GAO (Government Accountability Office) DHS (Department of Homeland Security)	$4,319,988	1.3%	Rank history: #18 in FY2022, #12 in FY2023, #42 in FY2024 and not on the FY2025 list; up 9 since FY2020.
21	Accenture Federal Services LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$3,933,521	1.2%	Rank history: not on the FY2022–FY2025 lists; down 18 since FY2020.
22	Relx Inc. Top agencies Commerce (Department of Commerce) DHS (Department of Homeland Security) FCC (Federal Communications Commission)	$3,282,519	1.0%	Rank history: #4 in FY2022, #1 in FY2023, #2 in FY2024 and #3 in FY2025; down 6 since FY2020.
23	Randstad North America Inc. Through Monster Government Solutions, LLC Top agencies DOS (Department of State)	$2,971,494	0.9%	Rank history: #23 in FY2022, #17 in FY2023, #92 in FY2024 and not on the FY2025 list; up 8 since FY2020.
24	Unison Virtual Acquisition Office LLC Top agencies DOS (Department of State) Commerce (Department of Commerce) DHA (Defense Health Agency)	$2,855,597	0.9%	Rank history: #26 in FY2022, #20 in FY2023, #45 in FY2024 and #18 in FY2025; unchanged since FY2020.
25	Synnex Corporation Through Concentrix CVG Corporation Top agencies CNCS (Corporation for National and Community Service)	$2,613,187	0.8%	Rank history: not on the FY2022 list, #26 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
26	IHS Global Inc. Top agencies DOI (Department of the Interior) OSD (Office of the Secretary of Defense) USAF (Department of the Air Force)	$2,601,897	0.8%	Rank history: #24 in FY2022 and not on the FY2023–FY2025 lists; up 38 since FY2020.
27	HP Enterprise Services LLC Through Onsolve LLC Top agencies Army (Department of the Army) HHS (Department of Health and Human Services)	$2,503,125	0.8%	Rank history: #68 in FY2022 and not on the FY2023–FY2025 lists; up 10 since FY2020.
28	Vintun LLC Top agencies Navy (Department of the Navy)	$2,444,390	0.7%	Rank history: #28 in FY2022, #19 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
29	Mehling Spraying Service, LLC Top agencies USDA (Department of Agriculture)	$2,332,715	0.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
30	Nana Regional Corporation Inc 2 awardees, including Tuvli LLC Top agencies DOS (Department of State)	$2,198,606	0.7%	Rank history: #42 in FY2022 and not on the FY2023–FY2025 lists; up 6 since FY2020.
31	Dataminr, Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts)	$2,040,000	0.6%	Rank history: #44 in FY2022, #33 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
32	Eastern Research Group Inc. Top agencies DOL (Department of Labor)	$2,003,854	0.6%	Rank history: not on the FY2022–FY2025 lists; up 7 since FY2020.
33	Microhealth LLC Top agencies DOE (Department of Energy)	$1,868,119	0.6%	Rank history: #37 in FY2022, #28 in FY2023, #55 in FY2024 and not on the FY2025 list; up 10 since FY2020.
34	Bulletin Intelligence LLC 3 awardees, including Cision US Inc. Top agencies HHS (Department of Health and Human Services) ED (Department of Education) NASA (National Aeronautics and Space Administration)	$1,732,830	0.5%	Rank history: #34 in FY2022, #32 in FY2023 and not on the FY2024–FY2025 lists; up 202 since FY2020.
35	The Institute of Electrical and Electronics Engineers Incorp Through Institute of Electrical & Electronics Engineers Inc. Top agencies NASA (National Aeronautics and Space Administration) DHS (Department of Homeland Security) Navy (Department of the Navy)	$1,528,696	0.5%	Rank history: #41 in FY2022, #39 in FY2023, #30 in FY2024 and not on the FY2025 list; up 15 since FY2020.
36	Lexisnexis Risk Solutions Inc. Top agencies Treasury (Department of the Treasury)	$1,498,000	0.5%	Rank history: not on the FY2022 list, #29 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2020.
37	Factiva Inc. Top agencies SEC (Securities and Exchange Commission) DOS (Department of State) EXIM (Export Import Bank of the US)	$1,478,199	0.5%	Rank history: #40 in FY2022, #27 in FY2023, #95 in FY2024 and not on the FY2025 list; up 87 since FY2020.
38	Costar Group, Inc. Through Costar Realty Information, Inc. Top agencies GSA (General Services Administration) DOT (Department of Transportation) USDA (Department of Agriculture)	$1,444,624	0.4%	Rank history: #35 in FY2022, #23 in FY2023, #51 in FY2024 and not on the FY2025 list; up 23 since FY2020.
39	The Mitre Corporation 2 awardees Top agencies EXIM (Export Import Bank of the US) USAF (Department of the Air Force)	$1,404,328	0.4%	Rank history: #27 in FY2022, #38 in FY2023, #15 in FY2024 and not on the FY2025 list; down 7 since FY2020.
40	Change Healthcare Technologies LLC Top agencies VA (Department of Veterans Affairs)	$1,312,527	0.4%	Rank history: #51 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
41	National Law Enforcement Telecommunication System (Nlets), Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) DCSA (Defense Counterintelligence and Security Agency)	$1,307,606	0.4%	Rank history: #39 in FY2022, #45 in FY2023, #38 in FY2024 and not on the FY2025 list; up 13 since FY2020.
42	Thomson Reuters Special Services LLC Top agencies DHS (Department of Homeland Security)	$1,077,611	0.3%	Rank history: #46 in FY2022 and not on the FY2023–FY2025 lists; down 2 since FY2020.
43	Mcgraw Hill Financial Inc. Through S&P Global Market Intelligence LLC Top agencies CFPB (Consumer Financial Protection Bureau) SEC (Securities and Exchange Commission) SBA (Small Business Administration)	$1,031,615	0.3%	Rank history: #45 in FY2022, #34 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2020.
44	Halvik LLC Top agencies FCC (Federal Communications Commission)	$916,319	0.3%	Rank history: #61 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
45	Informa Business Intelligence Inc. 2 awardees, including Taylor & Francis Group LLC Top agencies USDA (Department of Agriculture) CFPB (Consumer Financial Protection Bureau)	$881,190	0.3%	Rank history: #48 in FY2022, #50 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2020.
46	American Bureau of Shipping Top agencies DOT (Department of Transportation)	$800,000	0.2%	Rank history: not on the FY2022–FY2023 lists, #35 in FY2024 and not on the FY2025 list; up 31 since FY2020.
47	Technology - Management & Innovative Solutions, LLC Top agencies DHS (Department of Homeland Security) HUD (Department of Housing and Urban Development)	$789,395	0.2%	Rank history: #47 in FY2022, #42 in FY2023, #56 in FY2024 and #27 in FY2025; up 13 since FY2020.
48	Airtime Aerial, LLC Top agencies USDA (Department of Agriculture)	$767,048	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
49	Chenega It Enterprise Services, LLC Top agencies DOJ (Department of Justice)	$742,482	0.2%	Rank history: #50 in FY2022, #41 in FY2023, #28 in FY2024 and not on the FY2025 list; up 13 since FY2020.
50	Totally Joined for Achieving Collaborative Techniques (Tjfact), LLC Top agencies EPA (Environmental Protection Agency)	$692,757	0.2%	Rank history: #53 in FY2022, #52 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2020.
51	J.D. Power and Associates 2 awardees, including J.d. Power Top agencies DOT (Department of Transportation) DOL (Department of Labor) DHS (Department of Homeland Security)	$642,287	0.2%	Rank history: #73 in FY2022, #75 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
52	Proquest LLC Top agencies GAO (Government Accountability Office) DOJ (Department of Justice)	$621,500	0.2%	Rank history: #12 in FY2022, #43 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
53	Guidehouse Inc. Top agencies MCC (Millennium Challenge Corporation)	$600,000	0.2%	Rank history: #62 in FY2022, #49 in FY2023 and not on the FY2024–FY2025 lists; up 12 since FY2020.
54	Leadership Connect, Inc. Top agencies DHS (Department of Homeland Security) GAO (Government Accountability Office) Commerce (Department of Commerce)	$588,015	0.2%	Rank history: #54 in FY2022, #40 in FY2023, #37 in FY2024 and #58 in FY2025; up 20 since FY2020.
55	Nelnet Servicing LLC Through Peterson's, LLC Top agencies DHRA (Defense Human Resources Activity)	$563,712	0.2%	Rank history: not on the FY2022–FY2025 lists; down 13 since FY2020.
56	Concentrix CVG Corporation Top agencies CNCS (Corporation for National and Community Service)	$530,108	0.2%	Rank history: #21 in FY2022 and not on the FY2023–FY2025 lists; down 28 since FY2020.
57	Alaska Native Government Services LLC Through Copper River Cyber Solutions, LLC Top agencies HHS (Department of Health and Human Services)	$506,579	0.2%	Rank history: #30 in FY2022, #22 in FY2023, #12 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
58	Vistra Communications, LLC Top agencies DHS (Department of Homeland Security) VA (Department of Veterans Affairs)	$502,991	0.2%	Rank history: #59 in FY2022 and not on the FY2023–FY2025 lists; up 86 since FY2020.
59	Mohr Services LLC Top agencies FMSHRC (Federal Mine Safety and Health Review Commission)	$492,000	0.2%	Rank history: not on the FY2022–FY2025 lists; up 83 since FY2020.
60	Lorenz International LLC Top agencies Army (Department of the Army)	$476,935	0.1%	Rank history: not on the FY2022 list, #99 in FY2023, #93 in FY2024 and #37 in FY2025; new, not ranked in FY2020.
61	The Economist Newspaper Ltd Through The Economist Intelligence Unit, NA, Incorporated Top agencies Commerce (Department of Commerce) DOS (Department of State) CFPB (Consumer Financial Protection Bureau)	$448,400	0.1%	Rank history: #57 in FY2022 and not on the FY2023–FY2025 lists; up 15 since FY2020.
62	Sinclair Broadcast Group Inc. Through Politico, LLC Top agencies GAO (Government Accountability Office) Commerce (Department of Commerce) DHS (Department of Homeland Security)	$409,385	0.1%	Rank history: #49 in FY2022, #30 in FY2023, #57 in FY2024 and not on the FY2025 list; up 16 since FY2020.
63	Reed Group Ltd Top agencies Navy (Department of the Navy)	$400,000	0.1%	Rank history: #65 in FY2022 and not on the FY2023–FY2025 lists; up 12 since FY2020.
64	Global Data Publications Inc. Top agencies HHS (Department of Health and Human Services)	$360,000	0.1%	Rank history: not on the FY2022–FY2025 lists; up 16 since FY2020.
65	Whooster Inc. Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security) USDA (Department of Agriculture)	$359,153	0.1%	Rank history: #72 in FY2022, #70 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
66	Data Axle, Inc. Top agencies USDA (Department of Agriculture)	$350,000	0.1%	Rank history: #70 in FY2022, #54 in FY2023, #39 in FY2024 and #19 in FY2025; up 13 since FY2020.
67	Qualx, LLC Top agencies VA (Department of Veterans Affairs)	$347,878	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
68	University of Oxford 2 awardees, including The Chancellor Masters & Scholars of the University of Oxford Top agencies USDA (Department of Agriculture) DOJ (Department of Justice) HHS (Department of Health and Human Services)	$321,614	0.1%	Rank history: #58 in FY2022, #89 in FY2023 and not on the FY2024–FY2025 lists; up 37 since FY2020.
69	National Industries for the Blind Top agencies Navy (Department of the Navy)	$306,802	0.1%	Rank history: not on the FY2022–FY2025 lists; up 29 since FY2020.
70	Afm, LLC Top agencies NRC (Nuclear Regulatory Commission)	$300,000	0.1%	Rank history: #63 in FY2022, #82 in FY2023, #33 in FY2024 and #20 in FY2025; new, not ranked in FY2020.
71	Teamstaff Inc. Through Danya International LLC Top agencies HHS (Department of Health and Human Services)	$277,785	0.1%	Rank history: not on the FY2022–FY2025 lists; down 22 since FY2020.
72	Barbaricum LLC Top agencies DOT (Department of Transportation)	$277,328	0.1%	Rank history: #64 in FY2022, #37 in FY2023, #27 in FY2024 and #16 in FY2025; up 233 since FY2020.
73	John Wiley & Sons Inc. Top agencies USUHS (DOD Uniformed Services University of the Health Sciences) Navy (Department of the Navy) NRC (Nuclear Regulatory Commission)	$275,407	0.1%	Rank history: #74 in FY2022, #67 in FY2023 and not on the FY2024–FY2025 lists; up 11 since FY2020.
74	Vesselsvalue Limited Top agencies DOT (Department of Transportation)	$272,182	0.1%	Rank history: #66 in FY2022, #53 in FY2023, #62 in FY2024 and not on the FY2025 list; up 46 since FY2020.
75	Honeywell International Inc. Top agencies Army (Department of the Army)	$250,000	0.1%	Rank history: #80 in FY2022 and not on the FY2023–FY2025 lists; up 15 since FY2020.
76	Republic Strategic Communications Top agencies DOS (Department of State)	$249,910	0.1%	Rank history: not on the FY2022–FY2025 lists; up 15 since FY2020.
77	William S. Hein & Co., Inc. Top agencies DOJ (Department of Justice) DOT (Department of Transportation) GAO (Government Accountability Office)	$244,382	0.1%	Rank history: #81 in FY2022, #64 in FY2023, #80 in FY2024 and #51 in FY2025; up 53 since FY2020.
78	Cision US Inc. 2 awardees, including Bulletin Intelligence LLC Top agencies HHS (Department of Health and Human Services) EOP (Executive Office of the President)	$241,286	0.1%	Rank history: not on the FY2022 list, #36 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
79	Sicom Systems Ltd Through Accipiter Radar Corporation Top agencies DOT (Department of Transportation)	$235,894	0.1%	Rank history: not on the FY2022–FY2025 lists; up 2 since FY2020.
80	East View Information Services, Inc. Top agencies Navy (Department of the Navy)	$227,099	0.1%	Rank history: not on the FY2022 list, #77 in FY2023, #59 in FY2024 and not on the FY2025 list; up 59 since FY2020.
81	State Analysis, Inc. Top agencies Navy (Department of the Navy) HHS (Department of Health and Human Services)	$226,648	0.1%	Rank history: #82 in FY2022, #65 in FY2023 and not on the FY2024–FY2025 lists; up 12 since FY2020.
82	Euromoney Institutional Investor PLC 3 awardees, including Internet Securities LLC, Structured Retail Products.com and Euromoney Trading Limited Top agencies DFC (International Development Finance Corporation) SEC (Securities and Exchange Commission)	$222,606	0.1%	Rank history: #93 in FY2022 and not on the FY2023–FY2025 lists; up 81 since FY2020.
83	Genscape Inc. Top agencies DOE (Department of Energy)	$213,031	0.1%	Rank history: not on the FY2022–FY2025 lists; up 66 since FY2020.
84	Netdocuments Software Inc. Top agencies DOJ (Department of Justice)	$201,600	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
85	Barnallen Technologies, Inc. Top agencies NRC (Nuclear Regulatory Commission)	$194,805	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
86	LWH Enterprises, Inc. Top agencies HHS (Department of Health and Human Services)	$194,802	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
87	Emergency Care Research Institute Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$193,205	0.1%	Rank history: #87 in FY2022, #93 in FY2023 and not on the FY2024–FY2025 lists; up 15 since FY2020.
88	Accounting Research & Analytics, LLC Top agencies SEC (Securities and Exchange Commission)	$192,981	0.1%	Rank history: #90 in FY2022, #66 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
89	Rendon Group Inc. Top agencies DOJ (Department of Justice)	$190,643	0.1%	Rank history: #55 in FY2022 and not on the FY2023–FY2025 lists; down 18 since FY2020.
90	Design and Production Incorporated Top agencies Army (Department of the Army)	$189,742	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
91	Netalytics LLC Top agencies VA (Department of Veterans Affairs)	$189,100	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
92	S & K Global Solutions LLC Top agencies DOT (Department of Transportation)	$183,270	0.1%	Rank history: not on the FY2022–FY2025 lists; down 22 since FY2020.
93	Health Level Seven International Inc. Top agencies HHS (Department of Health and Human Services)	$180,000	0.1%	Rank history: #88 in FY2022, #68 in FY2023, #46 in FY2024 and not on the FY2025 list; down 66 since FY2020.
94	Aramark Uniform & Career Apparel LLC Through Aramark Sports and Entertainment Group, LLC Top agencies Navy (Department of the Navy)	$178,560	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
95	The Economist Intelligence Unit, NA, Incorporated Top agencies Commerce (Department of Commerce)	$169,888	0.1%	Rank history: not on the FY2022 list, #98 in FY2023 and not on the FY2024–FY2025 lists; up 139 since FY2020.
96	Ibisworld, Inc. Top agencies USAF (Department of the Air Force) SBA (Small Business Administration)	$163,754	0.1%	Rank history: not on the FY2022–FY2025 lists; up 16 since FY2020.
97	DTN LLC Top agencies USDA (Department of Agriculture) Navy (Department of the Navy)	$156,602	<0.1%	Rank history: not on the FY2022 list, #78 in FY2023 and not on the FY2024–FY2025 lists; up 41 since FY2020.
98	Wavemark, Inc. Top agencies VA (Department of Veterans Affairs)	$156,131	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 21 since FY2020.
99	DMG Information Inc Through Trepp, LLC Top agencies GSA (General Services Administration)	$156,000	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
100	Inside Washington Publishers LLC Top agencies GAO (Government Accountability Office) Commerce (Department of Commerce) OSD (Office of the Secretary of Defense)	$154,500	<0.1%	Rank history: #100 in FY2022, #74 in FY2023, #74 in FY2024 and #46 in FY2025; up 21 since FY2020.

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100 of 302 contractors listed here. See the rest on GovTribe.

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 $327 million obligated before deobligations, so they never pass 100%.
Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
Fiscal year 2021 ran Oct 1, 2020 – Sep 30, 2021. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
Rank changes compare with FY2020. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list. The step from FY2020 takes the color of the rank change beside it.
Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers

Who were the top 10 NAICS 519190 contractors in FY2021?

1. Maximus Inc. ($40.2M), 2. Thomson Reuters (Tax & Accounting) Inc. ($34.4M), 3. Reed Elsevier Inc. ($31.4M), 4. American Chemical Society ($18.9M), 5. DUN & Bradstreet Inc. ($11.9M), 6. Ebsco Industries Inc. ($11.8M), 7. Oil Price Information Service LLC ($9.59M), 8. Cox Subscriptions, Inc. ($8.27M), 9. Indigenous Technologies, LLC ($7.42M), 10. Cambridge Information Group Inc. ($7.41M).

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