Top 92 Contractors in NAICS 519210: Libraries and Archives, FY2025

Name: Top 92 Contractors in NAICS 519210: Libraries and Archives, FY2025
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 68% of FY2025 NAICS 519210 contract dollars

Contract obligations: $32,629,389 Net of deobligations, by contracts coded NAICS 519210
Contractors: 97 Parent companies with an obligation
Largest contractor: Ahtna Infrastructure & Technologies LLC $7.38 million, 22.0% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 92 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Ahtna Infrastructure & Technologies LLC Top agencies SSA (Social Security Administration)	$7,375,397	22.0%	Rank history: #1 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	NDT Solutions, LLC Top agencies Navy (Department of the Navy)	$3,308,028	9.9%	Rank history: not on the FY2023 list and #2 in FY2024; unchanged since FY2024.
3	Elsevier B.V. Top agencies USAF (Department of the Air Force) EPA (Environmental Protection Agency) Army (Department of the Army)	$3,141,066	9.4%	Rank history: not on the FY2023 list and #4 in FY2024; up 1 since FY2024.
4	Dynamic Business Group, Inc. Top agencies HHS (Department of Health and Human Services)	$2,044,753	6.1%	Rank history: #3 in FY2023 and #8 in FY2024; up 4 since FY2024.
5	Government Solutions Group, LLC Top agencies Commerce (Department of Commerce)	$1,612,415	4.8%	Rank history: not on the FY2023–FY2024 lists; new.
6	Institute of Electrical & Electronics Engineers Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) FCC (Federal Communications Commission)	$1,287,020	3.8%	Rank history: not on the FY2023 list and #17 in FY2024; up 11 since FY2024.
7	Thomson Company Inc the Through West Publishing Corporation Top agencies Commerce (Department of Commerce) AbilityOne Navy (Department of the Navy)	$1,214,345	3.6%	Rank history: not on the FY2023 list and #5 in FY2024; down 2 since FY2024.
8	Proquest LLC 2 awardees, including Ex Libris USA Inc. Top agencies Navy (Department of the Navy) Commerce (Department of Commerce) USUHS (DOD Uniformed Services University of the Health Sciences)	$1,043,482	3.1%	Rank history: not on the FY2023 list and #16 in FY2024; up 8 since FY2024.
9	Relx Inc. 2 awardees, including Elsevier Inc. Top agencies USAF (Department of the Air Force) CFTC (Commodity Futures Trading Commission) DOI (Department of the Interior)	$1,002,369	3.0%	Rank history: #5 in FY2023 and #3 in FY2024; down 6 since FY2024.
10	Springer Nature Customer Service Center LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) HHS (Department of Health and Human Services)	$873,869	2.6%	Rank history: not on the FY2023 list and #10 in FY2024; unchanged since FY2024.
11	Progressive Technology Federal Systems Inc. Top agencies Army (Department of the Army)	$814,546	2.4%	Rank history: #26 in FY2023 and not on the FY2024 list; returned.
12	Oclc, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) Commerce (Department of Commerce)	$673,494	2.0%	Rank history: #9 in FY2023 and #6 in FY2024; down 6 since FY2024.
13	Siertek Ltd. Top agencies USAF (Department of the Air Force)	$651,025	1.9%	Rank history: #15 in FY2023 and #9 in FY2024; down 4 since FY2024.
14	American Chemical Society 2 awardees Top agencies USAF (Department of the Air Force)	$547,103	1.6%	Rank history: #17 in FY2023 and #12 in FY2024; down 2 since FY2024.
15	Cengage Learning Holdings II Inc. Through Cengage Learning, Inc. Top agencies DODEA (Department of Defense Education Activity)	$484,487	1.4%	Rank history: not on the FY2023 list and #14 in FY2024; down 1 since FY2024.
16	Interplay Learning, Inc. Top agencies DODEA (Department of Defense Education Activity)	$460,000	1.4%	Rank history: not on the FY2023–FY2024 lists; new.
17	Ebsco Information Services, LLC Top agencies DODEA (Department of Defense Education Activity) Navy (Department of the Navy) DHA (Defense Health Agency)	$377,000	1.1%	Rank history: #38 in FY2023 and #20 in FY2024; up 3 since FY2024.
18	Informa Business Intelligence Inc. 2 awardees, including Informa Media LLC and Taylor & Francis Group LLC Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$365,488	1.1%	Rank history: not on the FY2023 list and #43 in FY2024; up 25 since FY2024.
19	IHS Global Inc Top agencies Army (Department of the Army)	$324,389	1.0%	Rank history: not on the FY2023–FY2024 lists; new.
20	Cadence Group Associates, Inc. Top agencies DOS (Department of State)	$309,232	0.9%	Rank history: not on the FY2023–FY2024 lists; new.
21	Ebsco Industries Inc. 3 awardees Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs) DOL (Department of Labor)	$286,415	0.9%	Rank history: #14 in FY2023 and #13 in FY2024; down 8 since FY2024.
22	Abaco Strategy, LLC Top agencies DHA (Defense Health Agency)	$274,505	0.8%	Rank history: not on the FY2023–FY2024 lists; new.
23	The Slate Group LLC Top agencies DODEA (Department of Defense Education Activity)	$249,400	0.7%	Rank history: not on the FY2023–FY2024 lists; new.
24	Axiell ALM Canada Inc. Top agencies Army (Department of the Army)	$233,977	0.7%	Rank history: not on the FY2023 list and #15 in FY2024; down 9 since FY2024.
25	Ryansh Corporate Solutions, Inc. Top agencies DHS (Department of Homeland Security)	$214,710	0.6%	Rank history: not on the FY2023 list and #19 in FY2024; down 6 since FY2024.
26	Graham Advisory Network Inc 2 awardees Top agencies VA (Department of Veterans Affairs) SEC (Securities and Exchange Commission)	$198,188	0.6%	Rank history: #21 in FY2023 and #35 in FY2024; up 9 since FY2024.
27	Loveland Technologies LLC Top agencies DOI (Department of the Interior)	$150,000	0.4%	Rank history: #24 in FY2023 and #39 in FY2024; up 12 since FY2024.
28	John J. YIM & Associates, LLC Top agencies Commerce (Department of Commerce)	$147,448	0.4%	Rank history: #23 in FY2023 and #24 in FY2024; down 4 since FY2024.
29	Carahsoft Technology Corp Top agencies Army (Department of the Army)	$139,978	0.4%	Rank history: not on the FY2023 list and #52 in FY2024; up 23 since FY2024.
30	Kenney Business Solutions Inc. Top agencies Navy (Department of the Navy)	$131,014	0.4%	Rank history: not on the FY2023–FY2024 lists; new.
31	The University of South Dakota Top agencies VA (Department of Veterans Affairs)	$116,480	0.3%	Rank history: not on the FY2023–FY2024 lists; new.
32	Choisys Technology Inc. Top agencies VA (Department of Veterans Affairs)	$112,460	0.3%	Rank history: not on the FY2023 list and #23 in FY2024; down 9 since FY2024.
33	Teton Data Systems Top agencies VA (Department of Veterans Affairs)	$105,408	0.3%	Rank history: #50 in FY2023 and #33 in FY2024; unchanged since FY2024.
34	National Fire Protection Association, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$105,369	0.3%	Rank history: #42 in FY2023 and #36 in FY2024; up 2 since FY2024.
35	Colorado Alliance of Research Libraries Top agencies USAF (Department of the Air Force)	$104,997	0.3%	Rank history: #28 in FY2023 and #32 in FY2024; down 3 since FY2024.
36	S&P Global Market Intelligence LLC Top agencies FCC (Federal Communications Commission)	$96,700	0.3%	Rank history: not on the FY2023 list and #38 in FY2024; up 2 since FY2024.
37	Madison Caress Top agencies Smithsonian (Smithsonian Institution)	$91,200	0.3%	Rank history: not on the FY2023 list and #55 in FY2024; up 18 since FY2024.
38	National Law Enforcement Telecommunication System (Nlets), Inc. Top agencies DOJ (Department of Justice)	$90,924	0.3%	Rank history: #31 in FY2023 and #40 in FY2024; up 2 since FY2024.
39	Invitrix LLC Top agencies Navy (Department of the Navy)	$88,983	0.3%	Rank history: not on the FY2023–FY2024 lists; new.
40	American Concrete Institute Top agencies Army (Department of the Army)	$88,947	0.3%	Rank history: not on the FY2023 list and #51 in FY2024; up 11 since FY2024.
41	The American Society of Mechanical Engineers Top agencies USAF (Department of the Air Force)	$83,984	0.3%	Rank history: #33 in FY2023 and #44 in FY2024; up 3 since FY2024.
42	National Consumer Law Center, Inc. Top agencies CFPB (Consumer Financial Protection Bureau)	$77,765	0.2%	Rank history: not on the FY2023–FY2024 lists; new.
43	Mari Taylor Alyssa Allison Top agencies Smithsonian (Smithsonian Institution)	$76,000	0.2%	Rank history: not on the FY2023 list and #46 in FY2024; up 3 since FY2024.
44	History Associates Incorporated Top agencies Navy (Department of the Navy)	$75,000	0.2%	Rank history: not on the FY2023–FY2024 lists; new.
45	Preservation Arts, LLC Top agencies DOI (Department of the Interior)	$74,984	0.2%	Rank history: not on the FY2023–FY2024 lists; new.
46	Emma Austin Eubank Top agencies Smithsonian (Smithsonian Institution)	$73,800	0.2%	Rank history: not on the FY2023–FY2024 lists; new.
47	Tax Analysts Top agencies Treasury (Department of the Treasury)	$68,750	0.2%	Rank history: not on the FY2023 list and #41 in FY2024; down 6 since FY2024.
48	William S. Hein & Co., Inc. Top agencies DOL (Department of Labor) Navy (Department of the Navy)	$62,025	0.2%	Rank history: #45 in FY2023 and #45 in FY2024; down 3 since FY2024.
49	Sirsi Corporation Top agencies USITC (International Trade Commission) USDA (Department of Agriculture) HUD (Department of Housing and Urban Development)	$61,610	0.2%	Rank history: #39 in FY2023 and #60 in FY2024; up 11 since FY2024.
50	Madeleine N Poche Top agencies Smithsonian (Smithsonian Institution)	$57,000	0.2%	Rank history: not on the FY2023–FY2024 lists; new.
51	John Wiley & Sons Inc. Top agencies USAF (Department of the Air Force)	$54,122	0.2%	Rank history: not on the FY2023 list and #49 in FY2024; down 2 since FY2024.
52	Kaya Arena Top agencies Smithsonian (Smithsonian Institution)	$54,000	0.2%	Rank history: not on the FY2023–FY2024 lists; new.
53	Chancellor, Masters and Scholars of the University of Cambridge Top agencies USAF (Department of the Air Force)	$51,293	0.2%	Rank history: not on the FY2023–FY2024 lists; new.
54	Samantha Parton Top agencies Smithsonian (Smithsonian Institution)	$49,995	0.1%	Rank history: not on the FY2023–FY2024 lists; new.
55	Copyright Clearance Center, Inc. Top agencies NTSB (National Transportation Safety Board)	$48,960	0.1%	Rank history: not on the FY2023 list and #85 in FY2024; up 30 since FY2024.
56	American Association for the Advancement of Science Top agencies USAF (Department of the Air Force)	$48,132	0.1%	Rank history: #41 in FY2023 and #37 in FY2024; down 19 since FY2024.
57	Pole Star Space Applications (USA) Inc. Top agencies Army (Department of the Army)	$45,000	0.1%	Rank history: not on the FY2023–FY2024 lists; new.
58	American Institute of Aeronautics and Astronautics, Inc. Top agencies Navy (Department of the Navy)	$44,090	0.1%	Rank history: #47 in FY2023 and #18 in FY2024; down 40 since FY2024.
59	Sae International Top agencies USAF (Department of the Air Force)	$43,962	0.1%	Rank history: #27 in FY2023 and #31 in FY2024; down 28 since FY2024.
60	Chicago Albumen Works Inc. Top agencies DOI (Department of the Interior)	$43,190	0.1%	Rank history: not on the FY2023–FY2024 lists; new.
61	HF Group LLC Top agencies DOT (Department of Transportation)	$41,607	0.1%	Rank history: not on the FY2023 list and #56 in FY2024; down 5 since FY2024.
62	American Society for Testing and Materials Top agencies Commerce (Department of Commerce)	$41,162	0.1%	Rank history: not on the FY2023–FY2024 lists; new.
63	Clarivate Analytics (Us) LLC Top agencies USAF (Department of the Air Force)	$40,632	0.1%	Rank history: not on the FY2023 list and #93 in FY2024; up 30 since FY2024.
64	Appraisal Institute Top agencies Army (Department of the Army)	$40,000	0.1%	Rank history: not on the FY2023–FY2024 lists; new.
65	Katherine Marshall Top agencies Smithsonian (Smithsonian Institution)	$38,368	0.1%	Rank history: not on the FY2023 list and #84 in FY2024; up 19 since FY2024.
66	F-Concepts, Inc. Top agencies Commerce (Department of Commerce)	$38,007	0.1%	Rank history: #30 in FY2023 and #61 in FY2024; down 5 since FY2024.
67	Clarkson Research Services Limited Top agencies Army (Department of the Army)	$35,000	0.1%	Rank history: not on the FY2023–FY2024 lists; new.
68	Third Iron LLC Top agencies USAF (Department of the Air Force)	$29,850	0.1%	Rank history: not on the FY2023 list and #66 in FY2024; down 2 since FY2024.
69	Josefson Jayna Michelle Top agencies Smithsonian (Smithsonian Institution)	$27,200	0.1%	Rank history: not on the FY2023 list and #54 in FY2024; down 15 since FY2024.
70	The Luster Co LLC Top agencies DOI (Department of the Interior)	$27,000	0.1%	Rank history: not on the FY2023–FY2024 lists; new.
71	American Society of Civil Engineers Top agencies USAF (Department of the Air Force)	$26,956	0.1%	Rank history: #55 in FY2023 and #65 in FY2024; down 6 since FY2024.
72	American Indian Health & Services Corporation Through Overdrive, Inc. Top agencies Army (Department of the Army)	$26,612	0.1%	Rank history: not on the FY2023–FY2024 lists; new.
73	IET Usa, Inc. Top agencies USAF (Department of the Air Force)	$25,920	0.1%	Rank history: #46 in FY2023 and #67 in FY2024; down 6 since FY2024.
74	The Research Investment, Inc. Top agencies Commerce (Department of Commerce)	$23,900	0.1%	Rank history: not on the FY2023 list and #68 in FY2024; down 6 since FY2024.
75	Board of Regents of the University System of Georgia Top agencies Army (Department of the Army)	$23,890	0.1%	Rank history: #59 in FY2023 and #82 in FY2024; up 7 since FY2024.
76	Prenax Inc. Top agencies EPA (Environmental Protection Agency)	$22,012	0.1%	Rank history: not on the FY2023–FY2024 lists; new.
77	LRP Publications, Inc. Top agencies USDA (Department of Agriculture)	$21,810	0.1%	Rank history: not on the FY2023–FY2024 lists; new.
78	Nationwide Pharmaceutical LLC Top agencies VA (Department of Veterans Affairs)	$18,330	0.1%	Rank history: #62 in FY2023 and #74 in FY2024; down 4 since FY2024.
79	Baker & Taylor, LLC Top agencies USAF (Department of the Air Force)	$16,974	0.1%	Rank history: not on the FY2023–FY2024 lists; new.
80	Financial Times Group Limited Through Financial Times Limited(The) Top agencies USITC (International Trade Commission)	$16,000	<0.1%	Rank history: not on the FY2023–FY2024 lists; new.
81	Timberlake Ventures, Inc. Top agencies HHS (Department of Health and Human Services)	$15,519	<0.1%	Rank history: not on the FY2023 list and #79 in FY2024; down 2 since FY2024.
82	The Chancellor, Masters and Scholars of the University of Oxford Top agencies USAF (Department of the Air Force)	$15,265	<0.1%	Rank history: not on the FY2023–FY2024 lists; new.
83	Mac Teknik Malzeme Sanayi VE Ticaret Limited Sirketi Top agencies USAF (Department of the Air Force)	$15,120	<0.1%	Rank history: #69 in FY2023 and #78 in FY2024; down 5 since FY2024.
84	Moon Denise Top agencies DOE (Department of Energy)	$10,000	<0.1%	Rank history: not on the FY2023 list and #86 in FY2024; up 2 since FY2024.
85	Uptodate, Inc. Top agencies HHS (Department of Health and Human Services)	$9,900	<0.1%	Rank history: not on the FY2023 list and #73 in FY2024; down 12 since FY2024.
86	History INK Top agencies DOI (Department of the Interior)	$9,000	<0.1%	Rank history: not on the FY2023–FY2024 lists; new.
87	Wolters Kluwer United States Inc. Through Wolters Kluwer Health, Inc. Top agencies VA (Department of Veterans Affairs)	$8,976	<0.1%	Rank history: not on the FY2023–FY2024 lists; new.
88	James V. Brown Library Top agencies DOJ (Department of Justice)	$7,500	<0.1%	Rank history: #79 in FY2023 and #89 in FY2024; up 1 since FY2024.
89	Southeastern NY Library Resources Council Top agencies Army (Department of the Army)	$7,254	<0.1%	Rank history: #73 in FY2023 and #90 in FY2024; up 1 since FY2024.
90	Public Library for Union County Top agencies DOJ (Department of Justice)	$6,065	<0.1%	Rank history: #80 in FY2023 and #91 in FY2024; up 1 since FY2024.
91	Cvent, Inc. Top agencies DTRA (Defense Threat Reduction Agency)	$5,260	<0.1%	Rank history: not on the FY2023–FY2024 lists; new.
92	Bibliotheca, LLC Top agencies Navy (Department of the Navy)	$2,428	<0.1%	Rank history: #77 in FY2023 and #95 in FY2024; up 3 since FY2024.

Show 67 more

92 of 97 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 $33.5 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 2025 ran Oct 1, 2024 – Sep 30, 2025. 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 FY2024. "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 FY2023, #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 FY2024 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 519210 contractors in FY2025?

1. Ahtna Infrastructure & Technologies LLC ($7.38M), 2. NDT Solutions, LLC ($3.31M), 3. Elsevier B.V. ($3.14M), 4. Dynamic Business Group, Inc. ($2.04M), 5. Government Solutions Group, LLC ($1.61M), 6. Institute of Electrical & Electronics Engineers Inc. ($1.29M), 7. Thomson Company Inc the ($1.21M), 8. Proquest LLC ($1.04M), 9. Relx Inc. ($1M), 10. Springer Nature Customer Service Center LLC ($874K).

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