Top 100 Contractors in NAICS 519190: All Other Information Services, FY2024

Name: Top 100 Contractors in NAICS 519190: All Other Information Services, FY2024
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2023 – Sep 30, 2024 Code page on GovTribe

The top 10 won 63% of FY2024 NAICS 519190 contract dollars

Contract obligations: $140,576,609 Net of deobligations, by contracts coded NAICS 519190
Contractors: 143 Parent companies with an obligation
Largest contractor: American Chemical Society $21.9 million, 14.8% 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	American Chemical Society Top agencies Commerce (Department of Commerce)	$21,927,900	14.8%	Rank history: #4 in FY2021, #3 in FY2022, #3 in FY2023 and not on the FY2025 list; up 2 since FY2023.
2	Relx Inc. 4 awardees, including Elsevier B.V. Top agencies Commerce (Department of Commerce) DOS (Department of State) DHS (Department of Homeland Security)	$15,979,674	10.8%	Rank history: #22 in FY2021, #4 in FY2022, #1 in FY2023 and #3 in FY2025; down 1 since FY2023.
3	Copper River Cyber Solutions, LLC Top agencies HHS (Department of Health and Human Services)	$12,922,816	8.7%	Rank history: not on the FY2021–FY2023 lists and #11 in FY2025; new.
4	Cox Subscriptions, Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$8,171,847	5.5%	Rank history: #8 in FY2021, #10 in FY2022, #7 in FY2023 and #2 in FY2025; up 3 since FY2023.
5	Thomson Company Inc the Through West Publishing Corporation Top agencies Army (Department of the Army) DOS (Department of State) DOL (Department of Labor)	$7,759,142	5.2%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2025; new.
6	Ovid Technologies, Inc. Top agencies DHA (Defense Health Agency)	$6,135,436	4.1%	Rank history: not on the FY2021–FY2023 lists and #6 in FY2025; new.
7	Clarivate Analytics (US) LLC Top agencies Commerce (Department of Commerce) DOE (Department of Energy)	$5,795,428	3.9%	Rank history: #12 in FY2021, #15 in FY2022, #11 in FY2023 and not on the FY2025 list; up 4 since FY2023.
8	Ebsco Industries Inc. 2 awardees Top agencies Commerce (Department of Commerce) DHA (Defense Health Agency) Navy (Department of the Navy)	$5,116,066	3.5%	Rank history: #6 in FY2021, #6 in FY2022, #5 in FY2023 and #12 in FY2025; down 3 since FY2023.
9	Bloomberg Finance LP Top agencies DCSA (Defense Counterintelligence and Security Agency) DOE (Department of Energy) OSD (Office of the Secretary of Defense)	$4,945,596	3.3%	Rank history: not on the FY2021–FY2023 lists and #10 in FY2025; new.
10	IHS Global Inc 2 awardees, including Markit North America Inc. Top agencies DOI (Department of the Interior) USAF (Department of the Air Force) Commerce (Department of Commerce)	$4,935,029	3.3%	Rank history: not on the FY2021–FY2023 lists and #15 in FY2025; new.
11	Goldbelt Frontier, LLC Top agencies Army (Department of the Army)	$4,050,198	2.7%	Rank history: not on the FY2021 list, #20 in FY2022, #14 in FY2023 and #7 in FY2025; up 3 since FY2023.
12	Alaska Native Government Services LLC Through Copper River Cyber Solutions, LLC Top agencies HHS (Department of Health and Human Services)	$3,773,098	2.5%	Rank history: #57 in FY2021, #30 in FY2022, #22 in FY2023 and not on the FY2025 list; up 10 since FY2023.
13	Proquest LLC Top agencies Commerce (Department of Commerce) EOP (Executive Office of the President) DHA (Defense Health Agency)	$3,255,651	2.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
14	London Stock Exchange Group PLC 2 awardees, including Refinitiv US LLC Top agencies SEC (Securities and Exchange Commission)	$2,617,273	1.8%	Rank history: not on the FY2021 list, #25 in FY2022, #18 in FY2023 and not on the FY2025 list; up 4 since FY2023.
15	The Mitre Corporation 2 awardees Top agencies USAF (Department of the Air Force)	$2,547,325	1.7%	Rank history: #39 in FY2021, #27 in FY2022, #38 in FY2023 and not on the FY2025 list; up 23 since FY2023.
16	Thomson Reuters (Tax & Accounting) Inc. 3 awardees, including West Publishing Corporation and Thomson Reuters (Markets) LLC Top agencies Treasury (Department of the Treasury) DOS (Department of State) Commerce (Department of Commerce)	$2,488,574	1.7%	Rank history: #2 in FY2021, #1 in FY2022, #2 in FY2023 and not on the FY2025 list; down 14 since FY2023.
17	Arrow Alliance Industries, LLC Top agencies DOI (Department of the Interior)	$2,440,333	1.6%	Rank history: #17 in FY2021, #8 in FY2022, #13 in FY2023 and #5 in FY2025; down 4 since FY2023.
18	CGI Technologies and Solutions Inc. Through CGI Federal Inc. Top agencies GAO (Government Accountability Office)	$1,993,058	1.3%	Rank history: not on the FY2021 list, #36 in FY2022, #24 in FY2023 and not on the FY2025 list; up 6 since FY2023.
19	Chickasaw Management Services, LLC Top agencies Commerce (Department of Commerce)	$1,890,355	1.3%	Rank history: not on the FY2021 list, #29 in FY2022, #25 in FY2023 and not on the FY2025 list; up 6 since FY2023.
20	Financial Times Group Limited 2 awardees, including Cq-Roll Call, Inc. and The Economist Intelligence Unit, NA, Incorporated Top agencies Commerce (Department of Commerce) DHS (Department of Homeland Security) DOE (Department of Energy)	$1,457,467	1.0%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2025; up 127 since FY2023.
21	Gartner, Inc. 2 awardees Top agencies DOS (Department of State) DOT (Department of Transportation) SSA (Social Security Administration)	$1,366,910	0.9%	Rank history: #14 in FY2021, #31 in FY2022, #31 in FY2023 and #35 in FY2025; up 10 since FY2023.
22	Bloomberg L.P. 3 awardees, including Bloomberg Industry Group, Inc. Top agencies NLRB (National Labor Relations Board) CFPB (Consumer Financial Protection Bureau) Commerce (Department of Commerce)	$1,264,051	0.9%	Rank history: #11 in FY2021, #9 in FY2022, #9 in FY2023 and #21 in FY2025; down 13 since FY2023.
23	Vibrantech Solutions Inc. Top agencies Treasury (Department of the Treasury)	$1,102,694	0.7%	Rank history: not on the FY2021 list, #38 in FY2022, #21 in FY2023 and not on the FY2025 list; down 2 since FY2023.
24	Elsevier B.V. Top agencies Commerce (Department of Commerce) Navy (Department of the Navy) Treasury (Department of the Treasury)	$947,645	0.6%	Rank history: not on the FY2021–FY2022 lists, #15 in FY2023 and #47 in FY2025; down 9 since FY2023.
25	Politico, LLC Top agencies Commerce (Department of Commerce) HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$933,676	0.6%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
26	S&P Global Market Intelligence LLC Top agencies SEC (Securities and Exchange Commission) CFPB (Consumer Financial Protection Bureau)	$899,506	0.6%	Rank history: not on the FY2021–FY2023 lists and #17 in FY2025; new.
27	Barbaricum LLC Top agencies DOJ (Department of Justice) DOT (Department of Transportation)	$842,495	0.6%	Rank history: #72 in FY2021, #64 in FY2022, #37 in FY2023 and #16 in FY2025; up 10 since FY2023.
28	Chenega It Enterprise Services, LLC Top agencies DOJ (Department of Justice)	$725,292	0.5%	Rank history: #49 in FY2021, #50 in FY2022, #41 in FY2023 and not on the FY2025 list; up 13 since FY2023.
29	Ice Data Pricing & Reference Data, LLC Top agencies SEC (Securities and Exchange Commission)	$634,000	0.4%	Rank history: not on the FY2021–FY2023 lists and #24 in FY2025; new.
30	The Institute of Electrical and Electronics Engineers Incorp Through Institute of Electrical & Electronics Engineers Inc. Top agencies DHS (Department of Homeland Security) FCC (Federal Communications Commission)	$582,235	0.4%	Rank history: #35 in FY2021, #41 in FY2022, #39 in FY2023 and not on the FY2025 list; up 9 since FY2023.
31	CQ-Roll Call Inc. Top agencies GAO (Government Accountability Office) DOS (Department of State) NRC (Nuclear Regulatory Commission)	$578,003	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
32	Refinitiv US LLC Top agencies DOE (Department of Energy) USDA (Department of Agriculture) DFC (International Development Finance Corporation)	$533,244	0.4%	Rank history: not on the FY2021–FY2023 lists and #4 in FY2025; new.
33	Afm, LLC Top agencies NRC (Nuclear Regulatory Commission)	$500,000	0.3%	Rank history: #70 in FY2021, #63 in FY2022, #82 in FY2023 and #20 in FY2025; up 49 since FY2023.
34	Informa Business Intelligence Inc. 2 awardees, including Taylor & Francis Group LLC Top agencies CFPB (Consumer Financial Protection Bureau) DOT (Department of Transportation)	$491,978	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
35	American Bureau of Shipping Top agencies DOT (Department of Transportation)	$455,000	0.3%	Rank history: #46 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; returned.
36	Choisys Technology Inc. Top agencies VA (Department of Veterans Affairs)	$432,843	0.3%	Rank history: not on the FY2021 list, #56 in FY2022, #51 in FY2023 and #30 in FY2025; up 15 since FY2023.
37	Leadership Connect, Inc. Top agencies DHS (Department of Homeland Security) Commerce (Department of Commerce) USDA (Department of Agriculture)	$409,735	0.3%	Rank history: #54 in FY2021, #54 in FY2022, #40 in FY2023 and #58 in FY2025; up 3 since FY2023.
38	National Law Enforcement Telecommunication System (Nlets), Inc. Top agencies DCSA (Defense Counterintelligence and Security Agency) DHS (Department of Homeland Security) DOT (Department of Transportation)	$385,949	0.3%	Rank history: #41 in FY2021, #39 in FY2022, #45 in FY2023 and not on the FY2025 list; up 7 since FY2023.
39	Data Axle, Inc. Top agencies USDA (Department of Agriculture)	$350,000	0.2%	Rank history: #66 in FY2021, #70 in FY2022, #54 in FY2023 and #19 in FY2025; up 15 since FY2023.
40	Guidehouse Inc. Top agencies MCC (Millennium Challenge Corporation)	$318,581	0.2%	Rank history: not on the FY2021–FY2023 lists and #31 in FY2025; new.
41	Cision US Inc. Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy) HHS (Department of Health and Human Services)	$308,227	0.2%	Rank history: not on the FY2021–FY2023 lists and #28 in FY2025; new.
42	Fiscalnote, Inc. Through Cq-Roll Call, Inc. Top agencies SSA (Social Security Administration) DOS (Department of State) DHS (Department of Homeland Security)	$298,306	0.2%	Rank history: #20 in FY2021, #18 in FY2022, #12 in FY2023 and not on the FY2025 list; down 30 since FY2023.
43	Bowhead Marine Support Services, LLC Top agencies Army (Department of the Army)	$289,583	0.2%	Rank history: not on the FY2021–FY2023 lists and #22 in FY2025; new.
44	LWH Enterprises Inc Top agencies HHS (Department of Health and Human Services)	$270,047	0.2%	Rank history: not on the FY2021 list, #79 in FY2022, #62 in FY2023 and #23 in FY2025; up 18 since FY2023.
45	Unison Virtual Acquisition Office LLC Top agencies WHS (DOD Washington Headquarters Service) DOE (Department of Energy) CFPB (Consumer Financial Protection Bureau)	$254,937	0.2%	Rank history: #24 in FY2021, #26 in FY2022, #20 in FY2023 and #18 in FY2025; down 25 since FY2023.
46	Health Level Seven International Inc. Top agencies HHS (Department of Health and Human Services)	$239,580	0.2%	Rank history: #93 in FY2021, #88 in FY2022, #68 in FY2023 and not on the FY2025 list; up 22 since FY2023.
47	Ibisworld Inc. Top agencies USAF (Department of the Air Force) EOP (Executive Office of the President) Treasury (Department of the Treasury)	$237,954	0.2%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2025; new.
48	Oil Price Information Service LLC 2 awardees, including IHS Global Inc. and R.l. Polk & Co Top agencies USTRANSCOM (Department of Defense United States Transportation Command) USDA (Department of Agriculture) DOT (Department of Transportation)	$236,038	0.2%	Rank history: #7 in FY2021, #7 in FY2022, #4 in FY2023 and not on the FY2025 list; down 44 since FY2023.
49	John Wiley & Sons Inc. Top agencies USUHS (DOD Uniformed Services University of the Health Sciences) Navy (Department of the Navy)	$235,841	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 85 since FY2023.
50	Dynamic Business Group, Inc. Top agencies NRC (Nuclear Regulatory Commission)	$219,128	0.1%	Rank history: not on the FY2021 list, #86 in FY2022, #56 in FY2023 and #25 in FY2025; up 6 since FY2023.
51	Costar Group, Inc. Through Costar Realty Information, Inc. Top agencies DOT (Department of Transportation)	$214,407	0.1%	Rank history: #38 in FY2021, #35 in FY2022, #23 in FY2023 and not on the FY2025 list; down 28 since FY2023.
52	Allium US Holding LLC Top agencies DOI (Department of the Interior)	$206,573	0.1%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2025; new.
53	Continuant Inc. Top agencies VA (Department of Veterans Affairs)	$202,432	0.1%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2023 and not on the FY2025 list; up 34 since FY2023.
54	Institute of Electrical & Electronics Engineers Inc. Top agencies Navy (Department of the Navy) FCC (Federal Communications Commission)	$194,626	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
55	Microhealth LLC Top agencies DOE (Department of Energy)	$192,727	0.1%	Rank history: #33 in FY2021, #37 in FY2022, #28 in FY2023 and not on the FY2025 list; down 27 since FY2023.
56	Technology - Management & Innovative Solutions, LLC Top agencies DHS (Department of Homeland Security)	$190,393	0.1%	Rank history: #47 in FY2021, #47 in FY2022, #42 in FY2023 and #27 in FY2025; down 14 since FY2023.
57	Sinclair Broadcast Group Inc. Through Politico, LLC Top agencies CFPB (Consumer Financial Protection Bureau) DOI (Department of the Interior) HHS (Department of Health and Human Services)	$181,089	0.1%	Rank history: #62 in FY2021, #49 in FY2022, #30 in FY2023 and not on the FY2025 list; down 27 since FY2023.
58	Dun & Bradstreet, Inc. Top agencies DHS (Department of Homeland Security) NLRB (National Labor Relations Board) Commerce (Department of Commerce)	$171,644	0.1%	Rank history: #5 in FY2021, #5 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
59	East View Information Services, Inc. Top agencies Navy (Department of the Navy)	$170,484	0.1%	Rank history: #80 in FY2021, not on the FY2022 list, #77 in FY2023 and not on the FY2025 list; up 18 since FY2023.
60	Meltwater News US Inc. 2 awardees Top agencies Treasury (Department of the Treasury) USITC (International Trade Commission)	$161,600	0.1%	Rank history: not on the FY2021 list, #77 in FY2022, #59 in FY2023 and #29 in FY2025; down 1 since FY2023.
61	Insurance Services Office Inc. Through Genscape, Inc. Top agencies DOE (Department of Energy)	$147,943	0.1%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2023 and not on the FY2025 list; up 8 since FY2023.
62	Vesselsvalue Limited Top agencies DOT (Department of Transportation)	$146,599	0.1%	Rank history: #74 in FY2021, #66 in FY2022, #53 in FY2023 and not on the FY2025 list; down 9 since FY2023.
63	Practicematch Corporation Top agencies HHS (Department of Health and Human Services)	$144,190	0.1%	Rank history: not on the FY2021–FY2022 lists, #76 in FY2023 and not on the FY2025 list; up 13 since FY2023.
64	Greenwich Associates LLC Through Crisil Irevna US LLC Top agencies SEC (Securities and Exchange Commission)	$139,000	0.1%	Rank history: not on the FY2021–FY2022 lists, #72 in FY2023 and not on the FY2025 list; up 8 since FY2023.
65	Global Financial Data Incorporated Top agencies Treasury (Department of the Treasury)	$127,308	0.1%	Rank history: not on the FY2021–FY2022 lists, #83 in FY2023 and not on the FY2025 list; up 18 since FY2023.
66	Techsystems USA LLC Top agencies VA (Department of Veterans Affairs)	$122,900	0.1%	Rank history: not on the FY2021–FY2023 lists and #33 in FY2025; up 36 since FY2023.
67	Quality Health Network Top agencies VA (Department of Veterans Affairs)	$118,608	0.1%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2023 and #41 in FY2025; up 19 since FY2023.
68	Green Street Advisors, LLC Top agencies SEC (Securities and Exchange Commission)	$118,077	0.1%	Rank history: not on the FY2021–FY2022 lists, #88 in FY2023 and #32 in FY2025; up 20 since FY2023.
69	Dataprise, LLC Top agencies ACUS (Administrative Conference of the United States)	$102,420	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
70	The Economist Newspaper Group Incorporated Through The Economist Intelligence Unit, NA, Incorporated Top agencies EXIM (Export Import Bank of the US) CFPB (Consumer Financial Protection Bureau)	$95,485	0.1%	Rank history: not on the FY2021–FY2022 lists, #55 in FY2023 and not on the FY2025 list; down 15 since FY2023.
71	M.d. Buyline, Inc. Top agencies VA (Department of Veterans Affairs)	$76,500	0.1%	Rank history: not on the FY2021–FY2022 lists, #100 in FY2023 and #38 in FY2025; up 29 since FY2023.
72	The Winvale Group, LLC Top agencies Army (Department of the Army)	$76,094	0.1%	Rank history: not on the FY2021–FY2023 lists and #45 in FY2025; up 29 since FY2023.
73	Ithaka Harbors Inc. Top agencies USDA (Department of Agriculture) DOI (Department of the Interior) CFPB (Consumer Financial Protection Bureau)	$74,130	0.1%	Rank history: not on the FY2021–FY2022 lists, #80 in FY2023 and #66 in FY2025; up 7 since FY2023.
74	Inside Washington Publishers LLC Top agencies Commerce (Department of Commerce) OSD (Office of the Secretary of Defense)	$71,000	<0.1%	Rank history: #100 in FY2021, #100 in FY2022, #74 in FY2023 and #46 in FY2025; unchanged since FY2023.
75	Infinite Media Concepts Inc. Top agencies Treasury (Department of the Treasury)	$70,000	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 47 since FY2023.
76	Trafficland, Inc. Top agencies DHS (Department of Homeland Security)	$67,620	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 28 since FY2023.
77	Transunion Risk and Alternative Data Solutions, Inc. Top agencies DOJ (Department of Justice)	$66,517	<0.1%	Rank history: not on the FY2021–FY2023 lists and #34 in FY2025; new.
78	Copyright Clearance Center, Inc. Top agencies NTSB (National Transportation Safety Board) USUHS (DOD Uniformed Services University of the Health Sciences)	$66,160	<0.1%	Rank history: not on the FY2021–FY2023 lists and #57 in FY2025; up 68 since FY2023.
79	Airlines Reporting Corporation Top agencies SEC (Securities and Exchange Commission) DOJ (Department of Justice) DOL (Department of Labor)	$64,160	<0.1%	Rank history: not on the FY2021 list, #96 in FY2022, #95 in FY2023 and #56 in FY2025; up 16 since FY2023.
80	William S. Hein & Co., Inc. Top agencies Commerce (Department of Commerce) CFPB (Consumer Financial Protection Bureau)	$62,096	<0.1%	Rank history: #77 in FY2021, #81 in FY2022, #64 in FY2023 and #51 in FY2025; down 16 since FY2023.
81	News Corporation Through Dow Jones & Company, Inc. Top agencies DOE (Department of Energy)	$61,834	<0.1%	Rank history: not on the FY2021–FY2023 lists and #39 in FY2025; up 22 since FY2023.
82	Bureau Van Dijk Electronic Publishing Inc. 2 awardees, including Moody's Analytics, Inc. Top agencies EXIM (Export Import Bank of the US)	$61,357	<0.1%	Rank history: not on the FY2021–FY2022 lists, #35 in FY2023 and #53 in FY2025; down 47 since FY2023.
83	Municipal Bond Information Services LLC Top agencies SEC (Securities and Exchange Commission)	$61,000	<0.1%	Rank history: not on the FY2021–FY2023 lists and #40 in FY2025; up 24 since FY2023.
84	BIA Advisory Services, LLC Top agencies FCC (Federal Communications Commission)	$55,532	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 27 since FY2023.
85	Definitive Healthcare LLC Top agencies HHS (Department of Health and Human Services)	$55,156	<0.1%	Rank history: not on the FY2021 list, #99 in FY2022, not on the FY2023 list and #42 in FY2025; up 27 since FY2023.
86	Lnrs Data Services Inc. Top agencies DHS (Department of Homeland Security)	$53,500	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
87	Delinian (Ijglobal) Limited Top agencies DFC (International Development Finance Corporation)	$53,060	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
88	Lacuna Clientscope Limited Top agencies Treasury (Department of the Treasury)	$46,759	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 27 since FY2023.
89	MDS L.L.C. Top agencies HHS (Department of Health and Human Services)	$45,856	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 27 since FY2023.
90	Newsbank Inc. Top agencies DOJ (Department of Justice)	$45,584	<0.1%	Rank history: not on the FY2021–FY2022 lists, #97 in FY2023 and not on the FY2025 list; up 7 since FY2023.
91	Bessel Capital S.a R.L. Through Mergermarket (U.s.) Ltd. Top agencies PBGC (Pension Benefit Guaranty Corporation) FTC (Federal Trade Commission)	$44,965	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
92	Randstad North America Inc. Through Monster Government Solutions, LLC Top agencies DOS (Department of State)	$43,494	<0.1%	Rank history: #23 in FY2021, #23 in FY2022, #17 in FY2023 and not on the FY2025 list; down 75 since FY2023.
93	Lorenz International LLC Top agencies DHA (Defense Health Agency)	$42,735	<0.1%	Rank history: #60 in FY2021, not on the FY2022 list, #99 in FY2023 and #37 in FY2025; up 6 since FY2023.
94	Geotel Corporation Top agencies GSA (General Services Administration)	$41,563	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
95	Factiva Inc. Top agencies DOJ (Department of Justice)	$39,717	<0.1%	Rank history: #37 in FY2021, #40 in FY2022, #27 in FY2023 and not on the FY2025 list; down 68 since FY2023.
96	NCS Pearson Inc. Top agencies USAF (Department of the Air Force)	$39,675	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 23 since FY2023.
97	Flowjo, LLC Top agencies HHS (Department of Health and Human Services)	$36,340	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
98	Oclc, Inc. Top agencies EXIM (Export Import Bank of the US)	$35,620	<0.1%	Rank history: not on the FY2021–FY2023 lists and #49 in FY2025; up 29 since FY2023.
99	R.s. Means Company LLC Top agencies DOL (Department of Labor)	$35,448	<0.1%	Rank history: not on the FY2021–FY2023 lists and #50 in FY2025; new.
100	4CAST Inc. Top agencies SSA (Social Security Administration)	$33,148	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 29 since FY2023.

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100 of 143 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 $148 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 2024 ran Oct 1, 2023 – Sep 30, 2024. 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 FY2023. "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 FY2023 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 FY2024?

1. American Chemical Society ($21.9M), 2. Relx Inc. ($16M), 3. Copper River Cyber Solutions, LLC ($12.9M), 4. Cox Subscriptions, Inc. ($8.17M), 5. Thomson Company Inc the ($7.76M), 6. Ovid Technologies, Inc. ($6.14M), 7. Clarivate Analytics (US) LLC ($5.8M), 8. Ebsco Industries Inc. ($5.12M), 9. Bloomberg Finance LP ($4.95M), 10. IHS Global Inc ($4.94M).

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