Top 100 Contractors in NAICS 519: Web Search Portals, Libraries, Archives, and Other Information Services, FY2021

Name: Top 100 Contractors in NAICS 519: Web Search Portals, Libraries, Archives, and 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 41% of FY2021 NAICS 519 contract dollars

Contract obligations: $672,323,498 Net of deobligations, by contracts coded NAICS 519 or a code under it
Contractors: 877 Parent companies with an obligation
Largest contractor: Reed Elsevier Inc. $57.6 million, 8.3% 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	Reed Elsevier Inc. 13 awardees, including Relx Inc., Elsevier B.V. and Elsevier Inc. Top agencies DHS (Department of Homeland Security) VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$57,552,562	8.3%	Rank history: #2 in FY2022, #16 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
2	Thomson Reuters (Tax & Accounting) Inc. 5 awardees, including West Publishing Corporation and Thomson Reuters (Markets) LLC Top agencies DHS (Department of Homeland Security) SEC (Securities and Exchange Commission) HHS (Department of Health and Human Services)	$49,670,339	7.1%	Rank history: #1 in FY2022, #1 in FY2023, #23 in FY2024 and not on the FY2025 list; up 4 since FY2020.
3	Maximus Inc. Through Maximus Federal Services, Inc. Top agencies HHS (Department of Health and Human Services) CFPB (Consumer Financial Protection Bureau)	$40,193,624	5.8%	Rank history: not on the FY2022–FY2025 lists; down 1 since FY2020.
4	Oil Price Information Service LLC 8 awardees, including IHS Global Inc., R.l. Polk & Co and S&P Global Limited Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$32,398,745	4.6%	Rank history: #3 in FY2022, #3 in FY2023, #48 in FY2024 and not on the FY2025 list; unchanged since FY2020.
5	American Chemical Society 2 awardees Top agencies Commerce (Department of Commerce) HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$20,430,762	2.9%	Rank history: #4 in FY2022, #4 in FY2023, #5 in FY2024 and not on the FY2025 list; up 82 since FY2020.
6	Ebsco Industries Inc. 4 awardees, including Yankee Book Peddler Incorporated Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Commerce (Department of Commerce)	$19,955,069	2.9%	Rank history: #6 in FY2022, #8 in FY2023, #18 in FY2024 and #25 in FY2025; up 4 since FY2020.
7	Wolters Kluwer N.V. 6 awardees, including Uptodate, Inc., Ovid Technologies, Inc. and CCH Incorporated Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) USAF (Department of the Air Force)	$17,642,093	2.5%	Rank history: #9 in FY2022, #9 in FY2023, #68 in FY2024 and not on the FY2025 list; up 11 since FY2020.
8	Bloomberg LP 2 awardees, including Bloomberg Finance LP and Bloomberg Industry Group, Inc. Top agencies SEC (Securities and Exchange Commission) Treasury (Department of the Treasury) Commerce (Department of Commerce)	$15,923,062	2.3%	Rank history: #10 in FY2022, #5 in FY2023, #20 in FY2024 and #35 in FY2025; up 3 since FY2020.
9	Gartner, Inc. 2 awardees Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) DOS (Department of State)	$15,870,461	2.3%	Rank history: #8 in FY2022, #7 in FY2023, #3 in FY2024 and #9 in FY2025; up 3 since FY2020.
10	Convergent Solutions Inc. Top agencies OSD (Office of the Secretary of Defense)	$15,577,761	2.2%	Rank history: #50 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
11	Asrc Federal Professional Services, LLC Top agencies Commerce (Department of Commerce)	$12,952,389	1.9%	Rank history: #13 in FY2022 and not on the FY2023–FY2025 lists; down 2 since FY2020.
12	Mcgraw Hill Financial Inc. 7 awardees, including S&P Global Market Intelligence LLC, Standard & Poor's Financial Services LLC and S&P Global Inc. Top agencies Treasury (Department of the Treasury) DOE (Department of Energy) HUD (Department of Housing and Urban Development)	$12,712,712	1.8%	Rank history: #11 in FY2022, #10 in FY2023, #77 in FY2024 and not on the FY2025 list; up 11 since FY2020.
13	Cox Subscriptions, Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$12,350,838	1.8%	Rank history: #7 in FY2022, #6 in FY2023, #4 in FY2024 and #4 in FY2025; up 13 since FY2020.
14	DUN & Bradstreet Inc. Top agencies DHS (Department of Homeland Security) Commerce (Department of Commerce) GAO (Government Accountability Office)	$11,919,949	1.7%	Rank history: #14 in FY2022, #12 in FY2023, #17 in FY2024 and #13 in FY2025; up 3 since FY2020.
15	Nana Regional Corporation Inc 3 awardees, including Cloud Lake Technology LLC and Tuvli LLC Top agencies DOS (Department of State)	$11,363,251	1.6%	Rank history: #21 in FY2022 and not on the FY2023–FY2025 lists; unchanged since FY2020.
16	Clarivate Analytics (US) LLC 2 awardees Top agencies Commerce (Department of Commerce) HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$11,205,732	1.6%	Rank history: #12 in FY2022, #14 in FY2023, #10 in FY2024 and #12 in FY2025; up 29 since FY2020.
17	Cambridge Information Group Inc. 3 awardees, including Proquest LLC, Ex Libris USA Inc. and Innovative Interfaces Incorporated Top agencies Commerce (Department of Commerce) DODEA (Department of Defense Education Activity) USAF (Department of the Air Force)	$10,568,522	1.5%	Rank history: #62 in FY2022, #15 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
18	Prenax Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) USUHS (DOD Uniformed Services University of the Health Sciences)	$9,696,681	1.4%	Rank history: #19 in FY2022, #18 in FY2023, #21 in FY2024 and #18 in FY2025; up 7 since FY2020.
19	Advancia Ahtna JV, LLC Top agencies SSA (Social Security Administration)	$8,909,169	1.3%	Rank history: #40 in FY2022, #52 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
20	Indigenous Technologies, LLC Top agencies DOS (Department of State)	$7,422,589	1.1%	Rank history: #18 in FY2022 and not on the FY2023–FY2025 lists; up 4 since FY2020.
21	Korber Supply Chain US Inc. Through Infios US, Inc. Top agencies VA (Department of Veterans Affairs)	$6,505,975	0.9%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
22	Fiscalnote, Inc. 2 awardees, including Cq-Roll Call, Inc. Top agencies Commerce (Department of Commerce) DHS (Department of Homeland Security) GAO (Government Accountability Office)	$6,203,758	0.9%	Rank history: #20 in FY2022, #20 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2020.
23	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	0.8%	Rank history: #24 in FY2022 and not on the FY2023–FY2025 lists; up 12 since FY2020.
24	Arrow Alliance Industries, LLC Top agencies DOI (Department of the Interior)	$5,374,839	0.8%	Rank history: #16 in FY2022, #26 in FY2023, #50 in FY2024 and #20 in FY2025; new, not ranked in FY2020.
25	Shoreland Inc. Top agencies DHA (Defense Health Agency)	$5,350,000	0.8%	Rank history: #25 in FY2022, #23 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2020.
26	Thomson Reuters Special Services LLC Top agencies DHS (Department of Homeland Security)	$5,277,611	0.8%	Rank history: #33 in FY2022, #27 in FY2023, #30 in FY2024 and #23 in FY2025; up 38 since FY2020.
27	Leidos Holdings, Inc. Through Leidos, Inc. Top agencies HUD (Department of Housing and Urban Development)	$5,262,473	0.8%	Rank history: #26 in FY2022 and not on the FY2023–FY2025 lists; down 13 since FY2020.
28	Delta Bridge, Inc. Top agencies DOS (Department of State)	$4,966,659	0.7%	Rank history: not on the FY2022–FY2025 lists; up 12 since FY2020.
29	West Publishing Corporation Top agencies SSA (Social Security Administration) DOJ (Department of Justice) DOI (Department of the Interior)	$4,787,401	0.7%	Rank history: not on the FY2022–FY2025 lists; down 24 since FY2020.
30	Digital Science & Research Solutions Inc. 3 awardees, including Springer Nature Customer Service Center LLC Top agencies HHS (Department of Health and Human Services) USAF (Department of the Air Force) DOI (Department of the Interior)	$4,038,498	0.6%	Rank history: #100 in FY2022, #92 in FY2023 and not on the FY2024–FY2025 lists; up 115 since FY2020.
31	Accenture Federal Services LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$3,933,521	0.6%	Rank history: not on the FY2022–FY2025 lists; down 24 since FY2020.
32	Moody'S Corporation Through Moody's Analytics, Inc. Top agencies Treasury (Department of the Treasury) SEC (Securities and Exchange Commission) PBGC (Pension Benefit Guaranty Corporation)	$3,803,529	0.5%	Rank history: #28 in FY2022, #24 in FY2023 and not on the FY2024–FY2025 lists; up 17 since FY2020.
33	Taft Broadcasting Company, L.L.C. Top agencies DMA (Defense Media Activity)	$3,303,877	0.5%	Rank history: #38 in FY2022, #37 in FY2023, #38 in FY2024 and #53 in FY2025; up 11 since FY2020.
34	Relx Inc. Top agencies Commerce (Department of Commerce) DHS (Department of Homeland Security) FCC (Federal Communications Commission)	$3,290,511	0.5%	Rank history: #5 in FY2022, #2 in FY2023, #1 in FY2024 and #2 in FY2025; down 14 since FY2020.
35	The Associated Press Top agencies USAGM (US Agency for Global Media) DOS (Department of State) Smithsonian (Smithsonian Institution)	$3,244,985	0.5%	Rank history: #39 in FY2022, #29 in FY2023, #33 in FY2024 and #71 in FY2025; down 6 since FY2020.
36	Bulletin Intelligence LLC 5 awardees, including Cision US Inc. and PR Newswire Association LLC Top agencies HHS (Department of Health and Human Services) Treasury (Department of the Treasury) ED (Department of Education)	$3,104,192	0.4%	Rank history: #58 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
37	Paydesk Limited Top agencies USAGM (US Agency for Global Media)	$3,091,229	0.4%	Rank history: #32 in FY2022, #19 in FY2023, #19 in FY2024 and #47 in FY2025; up 26 since FY2020.
38	Costar Group, Inc. Through Costar Realty Information, Inc. Top agencies GSA (General Services Administration) HUD (Department of Housing and Urban Development) Treasury (Department of the Treasury)	$2,991,913	0.4%	Rank history: #35 in FY2022, #34 in FY2023 and not on the FY2024–FY2025 lists; up 46 since FY2020.
39	Randstad North America Inc. Through Monster Government Solutions, LLC Top agencies DOS (Department of State)	$2,971,494	0.4%	Rank history: #45 in FY2022, #39 in FY2023 and not on the FY2024–FY2025 lists; up 11 since FY2020.
40	Kelly & Dewitt Inc. Top agencies HHS (Department of Health and Human Services)	$2,956,272	0.4%	Rank history: not on the FY2022–FY2025 lists; up 13 since FY2020.
41	Unison Virtual Acquisition Office LLC Top agencies DOS (Department of State) Commerce (Department of Commerce) DHA (Defense Health Agency)	$2,855,597	0.4%	Rank history: #22 in FY2022, #28 in FY2023, #31 in FY2024 and #36 in FY2025; down 4 since FY2020.
42	Novetta Solutions, LLC Through Accenture Federal Services LLC Top agencies USAF (Department of the Air Force)	$2,849,543	0.4%	Rank history: #82 in FY2022, #72 in FY2023 and not on the FY2024–FY2025 lists; up 80 since FY2020.
43	The Institute of Electrical and Electronics Engineers Incorp Through Institute of Electrical & Electronics Engineers Inc. Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$2,794,432	0.4%	Rank history: #46 in FY2022, #49 in FY2023, #65 in FY2024 and not on the FY2025 list; up 27 since FY2020.
44	IHS Global Inc. Top agencies DOI (Department of the Interior) EPA (Environmental Protection Agency) OSD (Office of the Secretary of Defense)	$2,779,597	0.4%	Rank history: #51 in FY2022 and not on the FY2023–FY2025 lists; up 4 since FY2020.
45	O'reilly Media, Inc. Top agencies DODEA (Department of Defense Education Activity) Navy (Department of the Navy) DHS (Department of Homeland Security)	$2,714,262	0.4%	Rank history: #43 in FY2022 and not on the FY2023–FY2025 lists; up 90 since FY2020.
46	Synnex Corporation Through Concentrix CVG Corporation Top agencies CNCS (Corporation for National and Community Service)	$2,613,187	0.4%	Rank history: not on the FY2022 list, #66 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
47	Information Ventures Inc. Top agencies HHS (Department of Health and Human Services)	$2,582,662	0.4%	Rank history: not on the FY2022–FY2025 lists; up 4 since FY2020.
48	HP Enterprise Services LLC Through Onsolve LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) HHS (Department of Health and Human Services)	$2,525,355	0.4%	Rank history: not on the FY2022–FY2025 lists; up 13 since FY2020.
49	Vintun LLC Top agencies Navy (Department of the Navy)	$2,444,390	0.4%	Rank history: #54 in FY2022, #47 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2020.
50	Mehling Spraying Service, LLC Top agencies USDA (Department of Agriculture)	$2,332,715	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
51	Jab Innovative Solutions LLC Top agencies DOS (Department of State)	$2,309,010	0.3%	Rank history: #52 in FY2022 and not on the FY2023–FY2025 lists; up 20 since FY2020.
52	Factiva Inc. 2 awardees, including Dow Jones & Company, Inc. Top agencies SEC (Securities and Exchange Commission) SSA (Social Security Administration) Treasury (Department of the Treasury)	$2,268,309	0.3%	Rank history: #60 in FY2022, #57 in FY2023, #66 in FY2024 and not on the FY2025 list; up 79 since FY2020.
53	Oclc, Inc. Top agencies Commerce (Department of Commerce) Army (Department of the Army) USAF (Department of the Air Force)	$2,204,650	0.3%	Rank history: #59 in FY2022, #53 in FY2023, #46 in FY2024 and #46 in FY2025; up 4 since FY2020.
54	University of North Carolina at Chapel Hill Top agencies EPA (Environmental Protection Agency)	$2,179,256	0.3%	Rank history: #73 in FY2022, not on the FY2023 list, #47 in FY2024 and #40 in FY2025; new, not ranked in FY2020.
55	Dataminr, Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts)	$2,040,000	0.3%	Rank history: #99 in FY2022, #85 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
56	Eastern Research Group Inc. Top agencies DOL (Department of Labor)	$2,003,854	0.3%	Rank history: not on the FY2022–FY2025 lists; up 6 since FY2020.
57	Dynamic Business Group, Inc. Top agencies HHS (Department of Health and Human Services)	$1,994,279	0.3%	Rank history: #48 in FY2022, #43 in FY2023, #61 in FY2024 and #29 in FY2025; up 18 since FY2020.
58	Cygnus Corp Inc. Top agencies HHS (Department of Health and Human Services)	$1,967,742	0.3%	Rank history: not on the FY2022–FY2025 lists; up 7 since FY2020.
59	Microhealth LLC Top agencies DOE (Department of Energy)	$1,868,119	0.3%	Rank history: #69 in FY2022, #70 in FY2023, #57 in FY2024 and #44 in FY2025; up 14 since FY2020.
60	Insignia Federal Group, LLC Top agencies HHS (Department of Health and Human Services)	$1,867,836	0.3%	Rank history: not on the FY2022–FY2025 lists; down 27 since FY2020.
61	Logical Images, Inc. Top agencies VA (Department of Veterans Affairs)	$1,866,311	0.3%	Rank history: #68 in FY2022, #65 in FY2023, #67 in FY2024 and #50 in FY2025; new, not ranked in FY2020.
62	Therapeutic Research Center, LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$1,817,280	0.3%	Rank history: #44 in FY2022, #50 in FY2023, #52 in FY2024 and #81 in FY2025; down 3 since FY2020.
63	Cengage Learning Inc. Top agencies DODEA (Department of Defense Education Activity) DOS (Department of State) DOJ (Department of Justice)	$1,816,069	0.3%	Rank history: #89 in FY2022, #89 in FY2023 and not on the FY2024–FY2025 lists; up 40 since FY2020.
64	Informa Business Intelligence Inc. 5 awardees, including Informa Media LLC, Taylor & Francis Group LLC and Informa UK Limited Top agencies USDA (Department of Agriculture) CFPB (Consumer Financial Protection Bureau) NASA (National Aeronautics and Space Administration)	$1,799,729	0.3%	Rank history: #63 in FY2022, #68 in FY2023 and not on the FY2024–FY2025 lists; up 14 since FY2020.
65	The Hearst Corporation 3 awardees, including Fitch Solutions, Inc., Inventory Locator Service, LLC and First Databank, Inc. Top agencies Treasury (Department of the Treasury) DLA (Defense Logistics Agency) HUD (Department of Housing and Urban Development)	$1,761,123	0.3%	Rank history: #66 in FY2022, #51 in FY2023, #82 in FY2024 and not on the FY2025 list; up 74 since FY2020.
66	Quotientsub LLC Top agencies Smithsonian (Smithsonian Institution)	$1,676,569	0.2%	Rank history: #49 in FY2022, #44 in FY2023, #36 in FY2024 and #27 in FY2025; up 205 since FY2020.
67	Sinclair Broadcast Group Inc. Through Politico, LLC Top agencies EPA (Environmental Protection Agency) DOE (Department of Energy) EOP (Executive Office of the President)	$1,668,021	0.2%	Rank history: #47 in FY2022, #36 in FY2023 and not on the FY2024–FY2025 lists; up 47 since FY2020.
68	The CDM Group Inc. Top agencies HHS (Department of Health and Human Services)	$1,582,482	0.2%	Rank history: #75 in FY2022 and not on the FY2023–FY2025 lists; up 11 since FY2020.
69	Select Federal Services, LLC Top agencies NASA (National Aeronautics and Space Administration)	$1,581,750	0.2%	Rank history: #77 in FY2022, #69 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2020.
70	TPR Media, LLC Top agencies DHA (Defense Health Agency)	$1,567,308	0.2%	Rank history: #76 in FY2022 and not on the FY2023–FY2025 lists; up 25 since FY2020.
71	Coursera, Inc. Top agencies OSD (Office of the Secretary of Defense)	$1,550,000	0.2%	Rank history: #90 in FY2022 and not on the FY2023–FY2025 lists; up 91 since FY2020.
72	Cadet Portfolio, LLC Top agencies Army (Department of the Army)	$1,545,500	0.2%	Rank history: #80 in FY2022, #56 in FY2023, #54 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
73	Technology - Management & Innovative Solutions, LLC Top agencies DHS (Department of Homeland Security) DOS (Department of State) HUD (Department of Housing and Urban Development)	$1,521,706	0.2%	Rank history: #98 in FY2022, #83 in FY2023, #93 in FY2024 and #100 in FY2025; up 3 since FY2020.
74	Cadence Group Associates, Inc. Top agencies DOJ (Department of Justice) Army (Department of the Army)	$1,502,197	0.2%	Rank history: #87 in FY2022, #62 in FY2023, #63 in FY2024 and #80 in FY2025; up 35 since FY2020.
75	Lexisnexis Risk Solutions Inc. Top agencies Treasury (Department of the Treasury)	$1,498,000	0.2%	Rank history: not on the FY2022 list, #71 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
76	Overdrive Inc. Top agencies DODEA (Department of Defense Education Activity) USAF (Department of the Air Force) Commerce (Department of Commerce)	$1,497,670	0.2%	Rank history: not on the FY2022 list, #95 in FY2023 and not on the FY2024–FY2025 lists; up 131 since FY2020.
77	Glimmer Technologies Inc. Top agencies USAGM (US Agency for Global Media)	$1,446,500	0.2%	Rank history: #72 in FY2022, #45 in FY2023, #41 in FY2024 and #70 in FY2025; up 30 since FY2020.
78	AFP Through Agence France Presse Top agencies USAGM (US Agency for Global Media)	$1,440,317	0.2%	Rank history: #70 in FY2022 and not on the FY2023–FY2025 lists; up 14 since FY2020.
79	Dialogconcepts LLC Top agencies EOP (Executive Office of the President)	$1,438,167	0.2%	Rank history: #79 in FY2022 and not on the FY2023–FY2025 lists; down 2 since FY2020.
80	The Mitre Corporation 2 awardees Top agencies EXIM (Export Import Bank of the US) USAF (Department of the Air Force)	$1,404,328	0.2%	Rank history: #53 in FY2022, #99 in FY2023 and not on the FY2024–FY2025 lists; down 28 since FY2020.
81	Tax Analysts Top agencies Treasury (Department of the Treasury) GAO (Government Accountability Office)	$1,359,790	0.2%	Rank history: #88 in FY2022, #90 in FY2023, #78 in FY2024 and #66 in FY2025; up 8 since FY2020.
82	American Medical Association Top agencies VA (Department of Veterans Affairs) SSA (Social Security Administration) DHA (Defense Health Agency)	$1,315,967	0.2%	Rank history: #84 in FY2022, #78 in FY2023, #79 in FY2024 and not on the FY2025 list; up 9 since FY2020.
83	Change Healthcare Technologies LLC Top agencies VA (Department of Veterans Affairs)	$1,312,527	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
84	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	0.2%	Rank history: #74 in FY2022, #79 in FY2023, #91 in FY2024 and #65 in FY2025; up 31 since FY2020.
85	John Wiley & Sons Inc. 3 awardees, including Wiley Subscription Services, Inc. Top agencies USAF (Department of the Air Force) USUHS (DOD Uniformed Services University of the Health Sciences) Army (Department of the Army)	$1,205,270	0.2%	Rank history: #81 in FY2022, #87 in FY2023 and not on the FY2024–FY2025 lists; down 42 since FY2020.
86	Ciphertrace Inc. Top agencies Treasury (Department of the Treasury)	$1,198,334	0.2%	Rank history: not on the FY2022–FY2025 lists; up 13 since FY2020.
87	J.e. Federal Enterprises, Llc. Top agencies VA (Department of Veterans Affairs) DODEA (Department of Defense Education Activity)	$1,157,618	0.2%	Rank history: #83 in FY2022, #76 in FY2023, #90 in FY2024 and #98 in FY2025; up 18 since FY2020.
88	Formation Healthcare Group, LLC Top agencies HUD (Department of Housing and Urban Development)	$1,130,620	0.2%	Rank history: #92 in FY2022, #74 in FY2023, not on the FY2024 list and #90 in FY2025; up 22 since FY2020.
89	University of Southern California Top agencies DMA (Defense Media Activity)	$1,060,424	0.2%	Rank history: not on the FY2022–FY2025 lists; up 7 since FY2020.
90	American Psychiatric Association Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$1,053,680	0.2%	Rank history: #93 in FY2022, #80 in FY2023, #89 in FY2024 and #73 in FY2025; up 22 since FY2020.
91	Moody's Analytics, Inc. Top agencies EXIM (Export Import Bank of the US) Treasury (Department of the Treasury) HUD (Department of Housing and Urban Development)	$1,038,465	0.1%	Rank history: not on the FY2022–FY2025 lists; up 26 since FY2020.
92	Ernst & Young LLP Top agencies EXIM (Export Import Bank of the US)	$1,027,600	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
93	Regents of the University of Michigan Top agencies NSF (National Science Foundation)	$1,017,809	0.1%	Rank history: not on the FY2022–FY2023 lists, #95 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
94	Mpf-Zai Solutions LLC Top agencies Commerce (Department of Commerce)	$1,016,561	0.1%	Rank history: #94 in FY2022, #93 in FY2023, #86 in FY2024 and #68 in FY2025; new, not ranked in FY2020.
95	FWG Solutions Inc. Top agencies Army (Department of the Army)	$990,582	0.1%	Rank history: #96 in FY2022, #77 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
96	Dextera Corp Top agencies Army (Department of the Army)	$972,401	0.1%	Rank history: not on the FY2022–FY2025 lists; up 48 since FY2020.
97	Halvik LLC Top agencies FCC (Federal Communications Commission)	$916,319	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
98	Trinity-Nextstep LLC Top agencies Navy (Department of the Navy)	$862,160	0.1%	Rank history: not on the FY2022 list, #96 in FY2023, #94 in FY2024 and #78 in FY2025; new, not ranked in FY2020.
99	IQ Solutions, Inc. Top agencies HHS (Department of Health and Human Services)	$853,202	0.1%	Rank history: not on the FY2022–FY2025 lists; down 11 since FY2020.
100	LRP Publications, Inc. Top agencies DOI (Department of the Interior) DOT (Department of Transportation) Navy (Department of the Navy)	$850,081	0.1%	Rank history: not on the FY2022 list, #81 in FY2023, #83 in FY2024 and #56 in FY2025; up 26 since FY2020.

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100 of 877 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 519

Code	Net obligations	Largest contractor
5191 Other Information Services	$672,323,498	Reed Elsevier Inc.

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 $697 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 519 contractors in FY2021?

1. Reed Elsevier Inc. ($57.6M), 2. Thomson Reuters (Tax & Accounting) Inc. ($49.7M), 3. Maximus Inc. ($40.2M), 4. Oil Price Information Service LLC ($32.4M), 5. American Chemical Society ($20.4M), 6. Ebsco Industries Inc. ($20M), 7. Wolters Kluwer N.V. ($17.6M), 8. Bloomberg LP ($15.9M), 9. Gartner, Inc. ($15.9M), 10. Convergent Solutions Inc. ($15.6M).

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