Top 89 Contractors in NAICS 519210: Libraries and Archives, Jul 2025–Jun 2026
Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe
The top 10 won 73% of NAICS 519210 contract dollars from July 2025 through June 2026
Ranking facts
- Contract obligations
- $35,293,969 Net of deobligations, by contracts coded NAICS 519210
- Contractors
- 90 Parent companies with an obligation
- Largest contractor
- Ebsco Information Services, LLC $10.7 million, 30.1% of obligations
- Data as of
Contract actions from FPDS (SAM.gov). How the rankings work · Download all 89 rows as CSV
Full ranking
| Rank | Contractor | Net obligations | Share | Trend |
|---|---|---|---|---|
| 1 | $10,705,535 | |||
| 2 |
NDT Solutions, LLC
Top agencies
|
$3,296,242 | ||
| 3 | $2,571,698 | |||
| 4 | $2,298,768 | |||
| 5 | $1,862,107 | |||
| 6 | $1,276,105 | |||
| 7 |
Thomson Company Inc the
|
$1,231,622 | ||
| 8 | $1,064,281 | |||
| 9 |
Cengage Learning Holdings II Inc.
Top agencies
|
$966,974 | ||
| 10 | $746,028 | |||
| 11 | $664,486 | |||
| 12 | $614,923 | |||
| 13 |
Siertek Ltd.
Top agencies
|
$588,337 | ||
| 14 | $588,127 | |||
| 15 | $460,000 | |||
| 16 |
Cadence Group Associates, Inc.
Top agencies
|
$335,225 | ||
| 17 |
IHS Global Inc
Top agencies
|
$324,389 | ||
| 18 | $305,216 | |||
| 19 | $299,347 | |||
| 20 |
Abaco Strategy, LLC
Top agencies
|
$274,505 | ||
| 21 | $249,400 | |||
| 22 |
Bloomberg L.P.
Top agencies
|
$222,230 | ||
| 23 | $214,710 | |||
| 24 | $197,950 | |||
| 25 |
Informa Business Intelligence Inc.
Top agencies
|
$193,970 | ||
| 26 | $190,325 | |||
| 27 | $188,100 | |||
| 28 | $184,296 | |||
| 29 | $162,782 | |||
| 30 |
Prenax Inc.
Top agencies
|
$151,654 | ||
| 31 | $150,000 | |||
| 32 |
Carahsoft Technology Corp
Top agencies
|
$139,978 | ||
| 33 | $131,014 | |||
| 34 | $112,460 | |||
| 35 |
Emma Austin Eubank
Top agencies
|
$111,600 | ||
| 36 | $105,369 | |||
| 37 | $102,065 | |||
| 38 | $101,974 | |||
| 39 |
Sae International
Top agencies
|
$98,031 | ||
| 40 | $96,394 | |||
| 41 |
Madison Caress
Top agencies
|
$91,200 | ||
| 42 |
American Concrete Institute
Top agencies
|
$88,947 | ||
| 43 | $86,502 | |||
| 44 | $81,360 | |||
| 45 | $77,765 | |||
| 46 | $76,000 | |||
| 47 | $75,000 | |||
| 48 |
Preservation Arts, LLC
Top agencies
|
$74,984 | ||
| 49 |
Tax Analysts
Top agencies
|
$68,750 | ||
| 50 | $65,873 | |||
| 51 |
Madeleine N Poche
Top agencies
|
$57,000 | ||
| 52 |
John Wiley & Sons Inc.
Top agencies
|
$54,122 | ||
| 53 |
Kaya Arena
Top agencies
|
$54,000 | ||
| 54 |
Samantha Parton
Top agencies
|
$49,995 | ||
| 55 | $49,964 | |||
| 56 | $49,560 | |||
| 57 | $49,304 | |||
| 58 | $48,960 | |||
| 59 |
Teton Data Systems
Top agencies
|
$45,505 | ||
| 60 |
Pole Star Space Applications (USA) Inc.
Top agencies
|
$45,000 | ||
| 61 | $43,220 | |||
| 62 | $43,190 | |||
| 63 | $40,632 | |||
| 64 |
Appraisal Institute
Top agencies
|
$40,000 | ||
| 65 |
Katherine Marshall
Top agencies
|
$38,368 | ||
| 66 |
Clarkson Research Services Limited
Top agencies
|
$35,000 | ||
| 67 |
Emerald Group Holdings Limited
Top agencies
|
$32,525 | ||
| 68 |
HF Group LLC
Top agencies
|
$31,607 | ||
| 69 |
Third Iron LLC
Top agencies
|
$30,745 | ||
| 70 | $27,765 | |||
| 71 |
The Luster Co LLC
Top agencies
|
$27,000 | ||
| 72 | $23,500 | |||
| 73 |
LRP Publications, Inc.
Top agencies
|
$21,810 | ||
| 74 | $19,250 | |||
| 75 | $17,561 | |||
| 76 | $16,139 | |||
| 77 | $16,111 | |||
| 78 | $16,028 | |||
| 79 |
Financial Times Group Limited
Top agencies
|
$16,000 | ||
| 80 | $15,120 | |||
| 81 |
BAE Systems
Top agencies
|
$13,004 | ||
| 82 |
Wolters Kluwer United States Inc.
Top agencies
|
$9,739 | ||
| 83 | $9,526 | |||
| 84 |
History INK
Top agencies
|
$9,000 | ||
| 85 |
Sage Publications, Inc.
Top agencies
|
$8,333 | ||
| 86 |
Leadership Connect, Inc.
Top agencies
|
$6,500 | ||
| 87 |
Oklahoma State University
Top agencies
|
$6,000 | ||
| 88 | $3,689 | |||
| 89 |
James V. Brown Library
Top agencies
|
$3,000 |
Show 64 more
89 of 90 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 $35.6 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.
- Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
- Rank changes compare with Jul 2024–Jun 2025. "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.
- 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 Jul 2025–Jun 2026?
1. Ebsco Information Services, LLC ($10.7M), 2. NDT Solutions, LLC ($3.3M), 3. Dynamic Business Group, Inc. ($2.57M), 4. Relx Inc. ($2.3M), 5. Elsevier B.V. ($1.86M), 6. Institute of Electrical & Electronics Engineers Inc. ($1.28M), 7. Thomson Company Inc the ($1.23M), 8. Proquest LLC ($1.06M), 9. Cengage Learning Holdings II Inc. ($967K), 10. Oclc, Inc. ($746K).
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