Company lists · Data refreshed September 2026
Top 25 Charter school operators based in the United States
RevenueBase identified 1,087 charter school operators headquartered in the United States as of September 2026 and tracks 79,080 professional contacts across them, including 34,357 with verified work emails. New York is the largest hub.
This list covers charter school operators 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 19, 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 charter school operators based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,988 contacts → | ||||
Partial evidence “IDEA Public Schools believes that each child can go to college.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 3,666 contacts → | ||||
Strong evidence “National Heritage Academies (NHA) partners with community groups to build and operate public charter schools.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 3,014 contacts → | ||||
Indirect evidence “Since 2006, Success Academy has tackled educational inequities head-on by providing exceptional public education for K-12 students in New York City.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 2,519 contacts → | ||||
Strong evidence “KIPP Texas Public Schools is an open-enrollment, free public charter school network of 54 schools with more than Pre-K – 12 students across the state and an impact of 30 years in…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 2,450 contacts → | ||||
Strong evidence “Charter Schools USA is one of the fastest growing education management companies in the U.S.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,976 contacts → | ||||
Indirect evidence “We believe a college degree should be within reach for every young person in this nation.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,695 contacts → | ||||
Strong evidence “Uplift Education (Uplift) is a 501(c)(3) nonprofit organization that operates a network of 45 high-performing, tuition-free, public charter schools serving students in…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,316 contacts → | ||||
Strong evidence “International Leadership of Texas (ILTexas) is a free, public charter school serving K-12 students across 26 campuses in the DFW, Houston, Liberty County, and College Station…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 1,147 contacts → | ||||
Partial evidence “Aspire now has 36 community-based schools serving over students in California.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 1,093 contacts → | ||||
Strong evidence “Since its inception, Great Hearts has been on a mission to become a national leader in public charter schools.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 1,031 contacts → | ||||
Strong evidence “Mastery Charter Schools and Mastery Schools of Camden form a non-profit school network of charter, turnaround and renaissance schools in Philadelphia, PA and Camden, NJ, serving…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 928 contacts → | ||||
Strong evidence “BASIS Charter Schools have been raising the level of American education to the highest international standards for more than 20 years, since our first school opened in 1998.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 895 contacts → | ||||
Partial evidence “At KIPP DC schools, students develop the knowledge, skills, and confidence to become Washington DC’s next generation of leaders.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 878 contacts → | ||||
Indirect evidence “Work Hard.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 836 contacts → | ||||
Strong evidence “Noble is a nonprofit organization that runs 17 charter public high schools and one middle school in the city of Chicago.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 806 contacts → | ||||
Strong evidence “KIPP SoCal Public Schools is a nonprofit organization that operates 24 tuition-free, open-enrollment charter public schools, within 20 Local Education Agencies, educating more…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 795 contacts → | ||||
Indirect evidence “Somerset Academy, Inc.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 702 contacts → | ||||
Strong evidence “We're a network of over 90 high-performing, public charter schools serving PK-12 students.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 664 contacts → | ||||
Strong evidence “Sign up to receive our Monthly Job Blast: http://tinyurl.com/jobblastsignup The mission of Friendship Public Charter School is to provide a world-class education that motivates…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 527 contacts → | ||||
Strong evidence “Developed by a coalition of San Diego civic leaders and educators, High Tech High opened in September as a small public charter school with plans to serve approximately 450…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 439 contacts → | ||||
Partial evidence “At Zeta, we are building high-performing, next-generation schools with an innovative, whole-child approach, preparing children for true participation and leadership in a modern…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 426 contacts → | ||||
Indirect evidence “Originally founded as Harlem RBI, DREAM traces its beginnings to 1991, when a group of volunteers transformed an abandoned, garbage-strewn lot into two baseball diamonds for the…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 412 contacts → | ||||
Indirect evidence “Our mission is to empower students by fostering their innate curiosity, engaging their parents, and promoting optimum learning by collaboratively developing a personalized…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 412 contacts → | ||||
Strong evidence “LEARN Charter School Network is a 501 (c)3 nationally recognized Network of high-performing college prep elementary public charter schools.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 405 contacts → | ||||
Partial evidence “Join KIPP New Orleans Schools in preparing students for lives full of choices!” Source: RevenueBase Database · checked Sep 19, 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: charter school operators. 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 charter school operators.
- Partial evidence
- Its own public description names part of charter school operators, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name charter school operators. 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 1,087 charter school operators based in the United States
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Charter school operators based in the United States at a glance
As of Sep 19, 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 1,087 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 charter school operators, 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 “charter school operators”. 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 charter school operators), 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 charter school operators, 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, 34,357 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 19, 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.
Charter school operators by metro
- Charter school operators in New York40
- Charter school operators in Los Angeles39
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 charter school operators, 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 charter school operators are there based in the United States?
RevenueBase identified 1,087 charter school operators 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?
Idea Public Schools, headquartered in Weslaco, tops this list with the largest team on record.
Which city has the most charter school operators?
New York leads with 40 headquartered companies, followed by Los Angeles (39) and Philadelphia (24).
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 34,357 verified decision-maker contacts tracked across these 1,087 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 19, 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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