Top 82 Contractors in NAICS 51921: Libraries and Archives, Aug 2025–Jul 2026
Parent companies by net contract obligations Aug 1, 2025 – Jul 31, 2026 Code page on GovTribe
The latest 12 months. See the newest fiscal year's list: Top Contractors in NAICS 51921: Libraries and Archives, FY2025.
The top 10 won 74% of NAICS 51921 contract dollars from August 2025 through July 2026
Ranking facts
- Contract obligations
- $33,396,730 Net of deobligations, by contracts coded NAICS 51921 or a code under it
- Contractors
- 83 Parent companies with an obligation
- Largest contractor
- Ebsco Industries Inc. $10.9 million, 32.5% of obligations
- Data as of
Contract actions from FPDS (SAM.gov). How the rankings work · Download all 82 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)
Full ranking
| Rank | Contractor | Net obligations | Share | Trend |
|---|---|---|---|---|
| 1 | $10,938,896 | |||
| 2 |
Lexisnexis Special Services Inc
|
$4,252,402 | ||
| 3 | $2,571,698 | |||
| 4 |
Chickasaw Nation
Top agencies
|
$1,660,801 | ||
| 5 | $1,288,240 | |||
| 6 |
West Publishing Corporation
|
$1,231,622 | ||
| 7 |
Cengage Learning Holdings II Inc.
Top agencies
|
$966,974 | ||
| 8 | $771,244 | |||
| 9 | $714,059 | |||
| 10 | $681,441 | |||
| 11 | $664,486 | |||
| 12 | $573,232 | |||
| 13 |
Siertek Ltd.
Top agencies
|
$571,685 | ||
| 14 | $462,619 | |||
| 15 | $460,000 | |||
| 16 |
Cadence Group Associates, Inc.
Top agencies
|
$335,225 | ||
| 17 |
IHS Global Inc
Top agencies
|
$325,777 | ||
| 18 | $299,347 | |||
| 19 |
Abaco Strategy, LLC
Top agencies
|
$274,505 | ||
| 20 | $249,400 | |||
| 21 |
Bloomberg Industry Group Inc.
Top agencies
|
$222,230 | ||
| 22 | $214,710 | |||
| 23 | $197,950 | |||
| 24 |
Informa Business Media Inc.
Top agencies
|
$193,970 | ||
| 25 | $188,100 | |||
| 26 | $184,296 | |||
| 27 | $162,782 | |||
| 28 |
Prenax Inc.
Top agencies
|
$151,654 | ||
| 29 | $150,000 | |||
| 30 |
Carahsoft Technology Corp
Top agencies
|
$139,978 | ||
| 31 | $112,460 | |||
| 32 |
Emma Austin Eubank
Top agencies
|
$111,600 | ||
| 33 | $102,065 | |||
| 34 | $101,974 | |||
| 35 |
Sae International
Top agencies
|
$98,031 | ||
| 36 | $92,148 | |||
| 37 |
Madison Caress
Top agencies
|
$91,200 | ||
| 38 |
American Concrete Institute
Top agencies
|
$88,947 | ||
| 39 | $86,502 | |||
| 40 | $81,360 | |||
| 41 | $77,765 | |||
| 42 | $76,000 | |||
| 43 | $75,000 | |||
| 44 |
Preservation Arts, LLC
Top agencies
|
$74,984 | ||
| 45 |
Tax Analysts
Top agencies
|
$68,750 | ||
| 46 |
Teton Data Systems
Top agencies
|
$68,686 | ||
| 47 | $65,873 | |||
| 48 |
John Wiley & Sons Inc.
Top agencies
|
$54,122 | ||
| 49 |
Kaya Arena
Top agencies
|
$54,000 | ||
| 50 | $49,964 | |||
| 51 | $49,560 | |||
| 52 | $49,304 | |||
| 53 | $48,960 | |||
| 54 |
Pole Star Space Applications (USA) Inc.
Top agencies
|
$45,000 | ||
| 55 | $43,220 | |||
| 56 | $43,190 | |||
| 57 |
Appraisal Institute
Top agencies
|
$40,000 | ||
| 58 |
Emerald Publishing Limited
Top agencies
|
$32,525 | ||
| 59 |
HF Group LLC
Top agencies
|
$31,607 | ||
| 60 |
Third Iron LLC
Top agencies
|
$30,745 | ||
| 61 | $27,765 | |||
| 62 |
The Luster Co LLC
Top agencies
|
$27,000 | ||
| 63 |
Covista Inc.
Top agencies
|
$23,500 | ||
| 64 |
LRP Publications, Inc.
Top agencies
|
$21,810 | ||
| 65 | $19,250 | |||
| 66 | $17,561 | |||
| 67 | $16,139 | |||
| 68 |
University of Oxford
Top agencies
|
$16,028 | ||
| 69 |
CQ-Roll Call Inc
Top agencies
|
$16,000 | ||
| 70 | $15,146 | |||
| 71 | $15,120 | |||
| 72 |
BAE Systems
Top agencies
|
$13,004 | ||
| 73 |
CCH Incorporated
Top agencies
|
$9,739 | ||
| 74 | $9,526 | |||
| 75 |
History INK
Top agencies
|
$9,000 | ||
| 76 |
Sage Publications, Inc.
Top agencies
|
$8,333 | ||
| 77 |
Leadership Connect, Inc.
Top agencies
|
$6,500 | ||
| 78 |
Oklahoma State University
Top agencies
|
$6,000 | ||
| 79 | $5,500 | |||
| 80 | $3,689 | |||
| 81 |
James V. Brown Library
Top agencies
|
$3,000 | ||
| 82 |
Bloomberg LP
Top agencies
|
$376 |
Show 57 more
82 of 83 contractors listed here. See the rest on GovTribe.
Rankings for the codes under NAICS 51921
| Code | Net obligations | Largest contractor |
|---|---|---|
| 519210 Libraries and Archives | $33,396,730 | Ebsco Industries 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 $33.7 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. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. 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 Aug 2024–Jul 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 51921 contractors in Aug 2025–Jul 2026?
1. Ebsco Industries Inc. ($10.9M), 2. Lexisnexis Special Services Inc ($4.25M), 3. Dynamic Business Group, Inc. ($2.57M), 4. Chickasaw Nation ($1.66M), 5. Institute of Electrical & Electronics Engineers Inc. ($1.29M), 6. West Publishing Corporation ($1.23M), 7. Cengage Learning Holdings II Inc. ($967K), 8. Oclc, Inc. ($771K), 9. Proquest LLC ($714K), 10. Springer Nature Customer Service Center LLC ($681K).
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