Company lists · Data refreshed September 2026
Top 25 School libraries based in the United States
RevenueBase identified 1,221 school libraries headquartered in the United States as of September 2026 and tracks 26,458 professional contacts across them, including 9,344 with verified work emails. New York is the largest hub.
This list covers school libraries headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 22, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest school libraries based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,494 contacts → | ||||
Indirect evidence “The New York Public Library is a free provider of education and information for the people of New York and beyond.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,087 contacts → | ||||
Indirect evidence “Established in 1896, Brooklyn Public Library is the nation’s sixth largest public library system and currently has nearly active cardholders.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 812 contacts → | ||||
Indirect evidence “Queens Public Library is one of the largest and busiest public library systems in the United States, dedicated to serving the most ethnically and culturally diverse area in the…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 671 contacts → | ||||
Indirect evidence “The Los Angeles Public Library provides free and easy access to information, ideas, books and technology that enrich, educate and empower every individual in our city's diverse…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 643 contacts → | ||||
Partial evidence “The Free Library of Philadelphia advances literacy, guides learning, and inspires curiosity with 54 neighborhood libraries city-wide.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 599 contacts → | ||||
Indirect evidence “Cincinnati & Hamilton County Public Library has been cultivating curiosity from the moment we first opened our doors in 1853.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 462 contacts → | ||||
Partial evidence “Charlotte Mecklenburg Library is one of America’s leading urban public libraries, serving one of the country’s great emerging metropolitan areas in North Carolina.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 418 contacts → | ||||
Indirect evidence “The Indianapolis Public Library is the community's place to access essential information resources, technology, programs and services; foster reading and learning and promote the…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 383 contacts → | ||||
Indirect evidence “The mission of the St.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 359 contacts → | ||||
Indirect evidence “Boston Public Library provides educational, cultural and civic enrichment, free to all, for the residents of Boston, Massachusetts and beyond, through its collections, services…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 327 contacts → | ||||
Indirect evidence “Advancing knowledge.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 313 contacts → | ||||
Partial evidence “Sno-Isle Libraries serves residents across 2,260 square miles in Snohomish and Island county through 23 community libraries, online services, and Library on Wheels.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 282 contacts → | ||||
Indirect evidence “Awarded the National Medal in 2017 by the Institute of Museum and Library Services, Richland Library is a vibrant, contemporary organization that provides resources and…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 262 contacts → | ||||
Indirect evidence “Our mission: Enriching the community through lifelong learning and discovery.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 232 contacts → | ||||
Indirect evidence “Anne Arundel County Public Library (AACPL) expands life’s possibilities by sharing resources for knowledge, entertainment and community engagement.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 192 contacts → | ||||
Partial evidence “Over 40 years ago we asked PK–12 librarians what they needed most.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 188 contacts → | ||||
Indirect evidence “The Austin Public Library is committed to providing easy access to books and information for all ages, through responsive professionals, engaging programs and state-of-the-art…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 174 contacts → | ||||
Partial evidence “The UW Libraries is one of the largest and most innovative libraries in North America with extensive collections in print, electronic, and other formats.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 166 contacts → | ||||
Indirect evidence “Vision Statement The Ann Arbor District Library provides collections, programs, and leadership to promote the development of literate and informed citizens through open and equal…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 159 contacts → | ||||
Indirect evidence “Mission Statement: The Akron-Summit County Public Library provides resources for learning and leisure, information services, meeting spaces, and programs for all ages that…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 157 contacts → | ||||
Partial evidence “For librarians, we can help you build a diverse collection of print and digital resources that support every student.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 156 contacts → | ||||
Partial evidence “Stark Library is a winner of the National Medal for library service, is one of the best 100 libraries in the U.S.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 152 contacts → | ||||
Partial evidence “Our strategic priorities include School Success, Express Creativity, Feed Your Imagination, and Welcome to America.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 150 contacts → | ||||
Indirect evidence “Empowering Minds.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 145 contacts → | ||||
Indirect evidence “BYU Students and faculty are the key reason we exist.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: school libraries. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names school libraries.
- Partial evidence
- Its own public description names part of school libraries, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name school libraries. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 1,221 school libraries based in the United States
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School libraries based in the United States at a glance
As of Sep 22, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,221 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among school libraries, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “school libraries”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names school libraries), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among school libraries, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 9,344 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 22, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names school libraries, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many school libraries are there based in the United States?
RevenueBase identified 1,221 school libraries headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
The NEW York Public Library, headquartered in New York, tops this list with the largest team on record.
Which city has the most school libraries?
New York leads with 9 headquartered companies, followed by Los Angeles (6) and Pittsburgh (6).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 9,344 verified decision-maker contacts tracked across these 1,221 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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