Company lists · Data refreshed November 2026
Top 25 Libraries based in the United States
The United States libraries directory contains 2,131 organizations, with 49,918 contacts and 17,937 email addresses, as of November 2026. Pittsburgh is the single most-represented city among the companies on the list.
Libraries are organizations that collect, manage, preserve, and provide access to books, media, information resources, and related services. This list covers organizations that operate libraries or provide library-based collections, information access, research support, lending, archiving, or related services. Ranked by team size, largest first. Data current as of November 5, 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 libraries based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,586 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 Nov 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,129 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 Nov 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 899 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 Nov 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 764 contacts → | ||||
Indirect evidence “Since 1873, Chicago Public Library (CPL) has encouraged lifelong learning by welcoming all people and offering equal access to information, entertainment and knowledge through…” Source: RevenueBase Database · checked Nov 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 719 contacts → | ||||
Indirect evidence “KCLS Strategic Focus: We create opportunities by connecting people – individuals at all stages of life, families, communities and organizations – with: • Information and services…” Source: RevenueBase Database · checked Nov 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 699 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 Nov 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 629 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 Nov 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 585 contacts → | ||||
Indirect evidence “Our Vision Cleveland Public Library will be the driving force behind a powerful culture of learning that will inspire Clevelanders from all walks of life to continually learn…” Source: RevenueBase Database · checked Nov 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 553 contacts → | ||||
Indirect evidence “The Denver Public Library connects people with information, ideas and experiences to provide enjoyment, enrich lives and strengthen our community.” Source: RevenueBase Database · checked Nov 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 494 contacts → | ||||
Indirect evidence “San Francisco Public Library connects our diverse communities to learning, opportunities and each other.” Source: RevenueBase Database · checked Nov 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 488 contacts → | ||||
Strong 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 Nov 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 487 contacts → | ||||
Indirect evidence “One county.” Source: RevenueBase Database · checked Nov 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 456 contacts → | ||||
Indirect evidence “We bring people, information and ideas together to enrich lives and and build community.” Source: RevenueBase Database · checked Nov 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 430 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 Nov 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 402 contacts → | ||||
Indirect evidence “Mid-Continent Public Library is the largest public library system in Missouri, serving nearly people in the greater Kansas City metropolitan area across Clay, Jackson, and Platte…” Source: RevenueBase Database · checked Nov 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 397 contacts → | ||||
Indirect evidence “The mission of the St.” Source: RevenueBase Database · checked Nov 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 390 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 Nov 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 384 contacts → | ||||
Indirect evidence “The Las Vegas-Clark County Library District is a vibrant and vital member of the community offering limitless learning; business and career advancement; government and social…” Source: RevenueBase Database · checked Nov 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 348 contacts → | ||||
Indirect evidence “Advancing knowledge.” Source: RevenueBase Database · checked Nov 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 336 contacts → | ||||
Indirect evidence “Enriching lives through experiences and opportunities to learn, grow and connect.” Source: RevenueBase Database · checked Nov 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 333 contacts → | ||||
Strong 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 Nov 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 331 contacts → | ||||
Indirect evidence “Informing, inspiring and empowering our community” Source: RevenueBase Database · checked Nov 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 329 contacts → | ||||
Indirect evidence “Harris County Public Library (HCPL) provides information and resources to enrich lives and strengthen communities through innovative services within and beyond our walls.” Source: RevenueBase Database · checked Nov 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 326 contacts → | ||||
Indirect evidence “Sacramento Public Library is the fourth largest library system in California with 28 locations serving 1.4M urban, suburban and rural residents.” Source: RevenueBase Database · checked Nov 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 291 contacts → | ||||
Indirect evidence “San José Public Library (SJPL) is located in the heart of Silicon Valley and in the nation's 12th largest city.” Source: RevenueBase Database · checked Nov 5, 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: 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 libraries.
- Partial evidence
- Its own public description names part of libraries, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name 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 2,131 libraries based in the United States
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Libraries based in the United States at a glance
As of Nov 5, 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 2,131 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 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 “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 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 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, 17,937 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 November 5, 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
How many libraries are in the United States directory?
The directory contains 2,131 libraries and related organizations as of November 2026.
What contact data is available for libraries in the directory?
The directory includes 49,918 contacts and 17,937 email addresses for listed library organizations.
Which city has the most libraries in the directory?
Pittsburgh is the single most-represented city among the companies on the list.
Ready to reach these companies? Verified emails and direct dials for all 2,131 libraries based in the United States. Start with a free account, no credit card.
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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.
More company lists
Company intelligence · public preview
Top 25 libraries based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 2,131 matching company records for libraries based in the United States, with 49,918 tracked contacts and 17,937 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 5, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 libraries based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  The NEW York Public Librarynypl.orgHQ: New York, NY, United StatesReported employees: 1,001-5,000 | New York, NY, United States | 1,001-5,000 | Exact match | 2,586 contacts → |
“The New York Public Library is a free provider of education and information for the people of New York and beyond.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Brooklyn Public Librarybklynlibrary.orgHQ: Brooklyn, NY, United StatesReported employees: 1,001-5,000 | Brooklyn, NY, United States | 1,001-5,000 | Exact match | 1,129 contacts → |
“Established in 1896, Brooklyn Public Library is the nation’s sixth largest public library system and currently has nearly active cardholders.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Queens Public Libraryqueenslibrary.orgHQ: Jamaica, NY, United StatesReported employees: 1,001-5,000 | Jamaica, NY, United States | 1,001-5,000 | Exact match | 899 contacts → |
“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…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Chicago Public Librarychipublib.orgHQ: Chicago, IL, United StatesReported employees: 1,001-5,000 | Chicago, IL, United States | 1,001-5,000 | Exact match | 764 contacts → |
“Since 1873, Chicago Public Library (CPL) has encouraged lifelong learning by welcoming all people and offering equal access to information, entertainment and knowledge through…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  King County Library Systemkcls.orgHQ: Issaquah, WA, United StatesReported employees: 1,001-5,000 | Issaquah, WA, United States | 1,001-5,000 | Exact match | 719 contacts → |
“KCLS Strategic Focus: We create opportunities by connecting people – individuals at all stages of life, families, communities and organizations – with: • Information and services…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  LOS Angeles Public Librarylapl.orgHQ: Los Angeles, United StatesReported employees: 501-1,000 | Los Angeles, United States | 501-1,000 | Exact match | 699 contacts → |
“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…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | HQ: Cincinnati, OH, United StatesReported employees: 501-1,000 | Cincinnati, OH, United States | 501-1,000 | Exact match | 629 contacts → |
“Cincinnati & Hamilton County Public Library has been cultivating curiosity from the moment we first opened our doors in 1853.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Cleveland Public Librarycpl.orgHQ: E Cleveland, OH, United StatesReported employees: 501-1,000 | E Cleveland, OH, United States | 501-1,000 | Exact match | 585 contacts → |
“Our Vision Cleveland Public Library will be the driving force behind a powerful culture of learning that will inspire Clevelanders from all walks of life to continually learn…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Denver Public Librarydenverlibrary.orgHQ: Denver, CO, United StatesReported employees: 501-1,000 | Denver, CO, United States | 501-1,000 | Exact match | 553 contacts → |
“The Denver Public Library connects people with information, ideas and experiences to provide enjoyment, enrich lives and strengthen our community.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  SAN Francisco Public Librarysfpl.orgHQ: San Francisco, CA, United StatesReported employees: 501-1,000 | San Francisco, CA, United States | 501-1,000 | Exact match | 494 contacts → |
“San Francisco Public Library connects our diverse communities to learning, opportunities and each other.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Charlotte Mecklenburg Librarycmlibrary.orgHQ: Charlotte, NC, United StatesReported employees: 201-500 | Charlotte, NC, United States | 201-500 | Exact match | 488 contacts → |
“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.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Hennepin County Libraryhclib.orgHQ: Minnetonka, MN, United StatesReported employees: 501-1,000 | Minnetonka, MN, United States | 501-1,000 | Exact match | 487 contacts → |
“One county.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  The Seattle Public Libraryspl.orgHQ: Seattle, WA, United StatesReported employees: 501-1,000 | Seattle, WA, United States | 501-1,000 | Exact match | 456 contacts → |
“We bring people, information and ideas together to enrich lives and and build community.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  The Indianapolis Public Libraryindypl.orgHQ: Indianapolis, IN, United StatesReported employees: 501-1,000 | Indianapolis, IN, United States | 501-1,000 | Exact match | 430 contacts → |
“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…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Mid-Continent Public Librarymymcpl.orgHQ: Independence, MO, United StatesReported employees: 501-1,000 | Independence, MO, United States | 501-1,000 | Exact match | 402 contacts → |
“Mid-Continent Public Library is the largest public library system in Missouri, serving nearly people in the greater Kansas City metropolitan area across Clay, Jackson, and Platte…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  St. Louis County Libraryslcl.orgHQ: St. Louis, MO, United StatesReported employees: 201-500 | St. Louis, MO, United States | 201-500 | Exact match | 397 contacts → |
“The mission of the St.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Boston Public Librarybpl.orgHQ: Boston, MA, United StatesReported employees: 201-500 | Boston, MA, United States | 201-500 | Exact match | 390 contacts → |
“Boston Public Library provides educational, cultural and civic enrichment, free to all, for the residents of Boston, Massachusetts and beyond, through its collections, services…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  LAS Vegas-Clark County Library Districtthelibrarydistrict.orgHQ: Las Vegas, United StatesReported employees: 501-1,000 | Las Vegas, United States | 501-1,000 | Exact match | 384 contacts → |
“The Las Vegas-Clark County Library District is a vibrant and vital member of the community offering limitless learning; business and career advancement; government and social…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Carnegie Library Of Pittsburghcarnegielibrary.orgHQ: Pittsburgh, PA, United StatesReported employees: 201-500 | Pittsburgh, PA, United States | 201-500 | Exact match | 348 contacts → |
“Advancing knowledge.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Orange County Library Systemocls.orgHQ: Orlando, FL, United StatesReported employees: 201-500 | Orlando, FL, United States | 201-500 | Exact match | 336 contacts → |
“Enriching lives through experiences and opportunities to learn, grow and connect.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Sno-Isle Librariessno-isle.orgHQ: Tulalip, WA, United StatesReported employees: 201-500 | Tulalip, WA, United States | 201-500 | Exact match | 333 contacts → |
“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.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Dayton Metro Librarydaytonmetrolibrary.orgHQ: Dayton, OH, United StatesReported employees: 201-500 | Dayton, OH, United States | 201-500 | Exact match | 331 contacts → |
“Informing, inspiring and empowering our community” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Harris County Public Libraryhcpl.netHQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 329 contacts → |
“Harris County Public Library (HCPL) provides information and resources to enrich lives and strengthen communities through innovative services within and beyond our walls.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Sacramento Public Librarysaclibrary.orgHQ: Sacramento, CA, United StatesReported employees: 201-500 | Sacramento, CA, United States | 201-500 | Exact match | 326 contacts → |
“Sacramento Public Library is the fourth largest library system in California with 28 locations serving 1.4M urban, suburban and rural residents.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  SAN José Public Librarysjpl.orgHQ: San Jose, CA, United StatesReported employees: 501-1,000 | San Jose, CA, United States | 501-1,000 | Exact match | 291 contacts → |
“San José Public Library (SJPL) is located in the heart of Silicon Valley and in the nation's 12th largest city.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 2,131 company matches
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Libraries: dataset insights
November 5, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
2,111 records in the displayed employee bands.
20 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 2,131 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 5, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for libraries?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many libraries did RevenueBase find based in the United States?
The saved snapshot records 2,131 matching company records, 49,918 tracked contacts and 17,937 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 5, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Libraries by geography
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 libraries based in the United States. Snapshot: November 5, 2026. https://revenuebase.ai/companies/libraries/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 libraries based in the United States
RevenueBase records 2,131 matching company records for libraries based in the United States, with 49,918 tracked contacts and 17,937 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 5, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 libraries based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | The NEW York Public Librarynypl.org HQ: New York, NY, United StatesReported employees: 1,001-5,000 | New York, NY, United States | 1,001-5,000 | Exact match | 2,586 contacts → |
“The New York Public Library is a free provider of education and information for the people of New York and beyond.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Brooklyn Public Librarybklynlibrary.org HQ: Brooklyn, NY, United StatesReported employees: 1,001-5,000 | Brooklyn, NY, United States | 1,001-5,000 | Exact match | 1,129 contacts → |
“Established in 1896, Brooklyn Public Library is the nation’s sixth largest public library system and currently has nearly active cardholders.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Queens Public Libraryqueenslibrary.org HQ: Jamaica, NY, United StatesReported employees: 1,001-5,000 | Jamaica, NY, United States | 1,001-5,000 | Exact match | 899 contacts → |
“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…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Chicago Public Librarychipublib.org HQ: Chicago, IL, United StatesReported employees: 1,001-5,000 | Chicago, IL, United States | 1,001-5,000 | Exact match | 764 contacts → |
“Since 1873, Chicago Public Library (CPL) has encouraged lifelong learning by welcoming all people and offering equal access to information, entertainment and knowledge through…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | King County Library Systemkcls.org HQ: Issaquah, WA, United StatesReported employees: 1,001-5,000 | Issaquah, WA, United States | 1,001-5,000 | Exact match | 719 contacts → |
“KCLS Strategic Focus: We create opportunities by connecting people – individuals at all stages of life, families, communities and organizations – with: • Information and services…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | LOS Angeles Public Librarylapl.org HQ: Los Angeles, United StatesReported employees: 501-1,000 | Los Angeles, United States | 501-1,000 | Exact match | 699 contacts → |
“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…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | HQ: Cincinnati, OH, United StatesReported employees: 501-1,000 | Cincinnati, OH, United States | 501-1,000 | Exact match | 629 contacts → |
“Cincinnati & Hamilton County Public Library has been cultivating curiosity from the moment we first opened our doors in 1853.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Cleveland Public Librarycpl.org HQ: E Cleveland, OH, United StatesReported employees: 501-1,000 | E Cleveland, OH, United States | 501-1,000 | Exact match | 585 contacts → |
“Our Vision Cleveland Public Library will be the driving force behind a powerful culture of learning that will inspire Clevelanders from all walks of life to continually learn…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Denver Public Librarydenverlibrary.org HQ: Denver, CO, United StatesReported employees: 501-1,000 | Denver, CO, United States | 501-1,000 | Exact match | 553 contacts → |
“The Denver Public Library connects people with information, ideas and experiences to provide enjoyment, enrich lives and strengthen our community.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | SAN Francisco Public Librarysfpl.org HQ: San Francisco, CA, United StatesReported employees: 501-1,000 | San Francisco, CA, United States | 501-1,000 | Exact match | 494 contacts → |
“San Francisco Public Library connects our diverse communities to learning, opportunities and each other.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Charlotte Mecklenburg Librarycmlibrary.org HQ: Charlotte, NC, United StatesReported employees: 201-500 | Charlotte, NC, United States | 201-500 | Exact match | 488 contacts → |
“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.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Hennepin County Libraryhclib.org HQ: Minnetonka, MN, United StatesReported employees: 501-1,000 | Minnetonka, MN, United States | 501-1,000 | Exact match | 487 contacts → |
“One county.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | The Seattle Public Libraryspl.org HQ: Seattle, WA, United StatesReported employees: 501-1,000 | Seattle, WA, United States | 501-1,000 | Exact match | 456 contacts → |
“We bring people, information and ideas together to enrich lives and and build community.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | The Indianapolis Public Libraryindypl.org HQ: Indianapolis, IN, United StatesReported employees: 501-1,000 | Indianapolis, IN, United States | 501-1,000 | Exact match | 430 contacts → |
“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…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Mid-Continent Public Librarymymcpl.org HQ: Independence, MO, United StatesReported employees: 501-1,000 | Independence, MO, United States | 501-1,000 | Exact match | 402 contacts → |
“Mid-Continent Public Library is the largest public library system in Missouri, serving nearly people in the greater Kansas City metropolitan area across Clay, Jackson, and Platte…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | St. Louis County Libraryslcl.org HQ: St. Louis, MO, United StatesReported employees: 201-500 | St. Louis, MO, United States | 201-500 | Exact match | 397 contacts → |
“The mission of the St.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Boston Public Librarybpl.org HQ: Boston, MA, United StatesReported employees: 201-500 | Boston, MA, United States | 201-500 | Exact match | 390 contacts → |
“Boston Public Library provides educational, cultural and civic enrichment, free to all, for the residents of Boston, Massachusetts and beyond, through its collections, services…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | LAS Vegas-Clark County Library Districtthelibrarydistrict.org HQ: Las Vegas, United StatesReported employees: 501-1,000 | Las Vegas, United States | 501-1,000 | Exact match | 384 contacts → |
“The Las Vegas-Clark County Library District is a vibrant and vital member of the community offering limitless learning; business and career advancement; government and social…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Carnegie Library Of Pittsburghcarnegielibrary.org HQ: Pittsburgh, PA, United StatesReported employees: 201-500 | Pittsburgh, PA, United States | 201-500 | Exact match | 348 contacts → |
“Advancing knowledge.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Orange County Library Systemocls.org HQ: Orlando, FL, United StatesReported employees: 201-500 | Orlando, FL, United States | 201-500 | Exact match | 336 contacts → |
“Enriching lives through experiences and opportunities to learn, grow and connect.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Sno-Isle Librariessno-isle.org HQ: Tulalip, WA, United StatesReported employees: 201-500 | Tulalip, WA, United States | 201-500 | Exact match | 333 contacts → |
“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.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Dayton Metro Librarydaytonmetrolibrary.org HQ: Dayton, OH, United StatesReported employees: 201-500 | Dayton, OH, United States | 201-500 | Exact match | 331 contacts → |
“Informing, inspiring and empowering our community” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Harris County Public Libraryhcpl.net HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 329 contacts → |
“Harris County Public Library (HCPL) provides information and resources to enrich lives and strengthen communities through innovative services within and beyond our walls.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Sacramento Public Librarysaclibrary.org HQ: Sacramento, CA, United StatesReported employees: 201-500 | Sacramento, CA, United States | 201-500 | Exact match | 326 contacts → |
“Sacramento Public Library is the fourth largest library system in California with 28 locations serving 1.4M urban, suburban and rural residents.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | SAN José Public Librarysjpl.org HQ: San Jose, CA, United StatesReported employees: 501-1,000 | San Jose, CA, United States | 501-1,000 | Exact match | 291 contacts → |
“San José Public Library (SJPL) is located in the heart of Silicon Valley and in the nation's 12th largest city.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 2,131 company matches
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Libraries: dataset insights
November 5, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
2,111 records in the displayed employee bands.
20 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 2,131 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 5, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for libraries?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many libraries did RevenueBase find based in the United States?
The saved snapshot records 2,131 matching company records, 49,918 tracked contacts and 17,937 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 5, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Libraries by geography
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Cite this list
RevenueBase Data Team. Top 25 libraries based in the United States. Snapshot: November 5, 2026. https://revenuebase.ai/companies/libraries/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗