Company lists · Data refreshed September 2026

Top 25 Charter schools based in the United States

Name: Charter schools based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 7, 2026 2,502 companies tracked

This directory contains 2,502 charter schools based in the United States, with 162,035 contacts and 68,173 email addresses. New York is the single most-represented city among the companies on the list, and the directory was updated in September 2026.

Charter schools are publicly funded, independently operated schools that provide elementary and secondary education under the terms of an approved charter. This list covers charter schools that operate under an approved charter and provide instruction to enrolled students. Ranked by team size, largest first. Data current as of September 7, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 7, 2026 86% judged on-target in blind review

2,502Companies

162,035Contacts tracked

68,173Verified emails

65,432Mobile numbers

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The 25 largest charter schools based in the United States

Ranked by team size

Top 25 of 2,502 charter schools based in the United States, ranked by team size, largest first. Data refreshed Sep 7, 2026. RevenueBase Smart Search rates how each company's information relates to charter schools: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Charlotte-Mecklenburg Schools	Partial evidence	Charlotte, NC, United StatesHQ checked Sep 7, 2026	10001+	14,181 contacts →
	Partial evidence “The mission of Charlotte-Mecklenburg Schools is to create an innovative, inclusive, student-centered environment that supports the development of independent learners.” Source: RevenueBase Database · checked Sep 7, 2026
2	Douglas County School District	Indirect evidence	Castle Rock, CO, United StatesHQ checked Sep 7, 2026	5,001-10,000	5,706 contacts →
	Indirect evidence “Douglas County is home to excellence in education and fantastic teachers who prepare Douglas County students to be successful.” Source: RevenueBase Database · checked Sep 7, 2026
3	Pasco County Schools	Partial evidence	Land O' Lakes, FL, United StatesHQ checked Sep 7, 2026	10001+	5,140 contacts →
	Partial evidence “Pasco County Schools is located just north of Tampa, Florida.” Source: RevenueBase Database · checked Sep 7, 2026
4	Idea Public Schools	Partial evidence	Weslaco, TX, United StatesHQ checked Sep 7, 2026	10001+	4,988 contacts →
	Partial evidence “IDEA Public Schools believes that each child can go to college.” Source: RevenueBase Database · checked Sep 7, 2026
5	National Heritage Academies	Strong evidence	Grand Rapids, MI, United StatesHQ checked Sep 7, 2026	5,001-10,000	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 7, 2026
6	Success Academy Charter Schools	Indirect evidence	New York, NY, United StatesHQ checked Sep 7, 2026	1,001-5,000	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 7, 2026
7	Harmony Public Schools	Strong evidence	Houston, TX, United StatesHQ checked Sep 7, 2026	1,001-5,000	2,933 contacts →
	Strong evidence “Harmony Public Schools is a network of PreK-12 college preparatory public charter schools across Texas.” Source: RevenueBase Database · checked Sep 7, 2026
8	Kipp Texas Public Schools	Strong evidence	Houston, TX, United StatesHQ checked Sep 7, 2026	1,001-5,000	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 7, 2026
9	Charter Schools USA	Strong evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 7, 2026	10001+	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 7, 2026
10	Uncommon Schools	Indirect evidence	New York, NY, United StatesHQ checked Sep 7, 2026	1,001-5,000	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 7, 2026
11	ANN Arbor Public Schools	Partial evidence	Ann Arbor, MI, United StatesHQ checked Sep 7, 2026	1,001-5,000	1,733 contacts →
	Partial evidence “The mission of the Ann Arbor Public Schools, a worldclass system of innovative teaching and learning, is ensure that each student realizes his or her aspirations while advancing…” Source: RevenueBase Database · checked Sep 7, 2026
12	Uplift Education	Strong evidence	Dallas, TX, United StatesHQ checked Sep 7, 2026	1,001-5,000	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 7, 2026
13	Academy School District 20	Indirect evidence	Colorado Springs, CO, United StatesHQ checked Sep 7, 2026	1,001-5,000	1,630 contacts →
	Indirect evidence “Academy District 20 (ASD20) was founded in 1957 and serves more than students in northern Colorado Springs.” Source: RevenueBase Database · checked Sep 7, 2026
14	Achievement First	Strong evidence	Brooklyn, United StatesHQ checked Sep 7, 2026	1,001-5,000	1,431 contacts →
	Strong evidence “Achievement First is a growing network of non-profit, high-performing, college-preparatory, K to 12 public charter schools in Connecticut, New York and Rhode Island.” Source: RevenueBase Database · checked Sep 7, 2026
15	International Leadership Of Texas	Strong evidence	Richardson, TX, United StatesHQ checked Sep 7, 2026	1,001-5,000	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 7, 2026
16	Great Minds	Indirect evidence	Washington, DC, United StatesHQ checked Sep 7, 2026	1,001-5,000	1,179 contacts →
	Indirect evidence “At Great Minds®, we believe every child is capable of greatness.” Source: RevenueBase Database · checked Sep 7, 2026
17	Aspire Public Schools	Partial evidence	Oakland, CA, United StatesHQ checked Sep 7, 2026	1,001-5,000	1,147 contacts →
	Partial evidence “Aspire now has 36 community-based schools serving over students in California.” Source: RevenueBase Database · checked Sep 7, 2026
18	Responsive Education Solutions	Strong evidence	Lewisville, TX, United StatesHQ checked Sep 7, 2026	1,001-5,000	1,103 contacts →
	Strong evidence “Our story began in 1998 when we, as a non-profit organization, were granted charters to open 15 dropout recovery and prevention schools.” Source: RevenueBase Database · checked Sep 7, 2026
19	Great Hearts Academies	Strong evidence	Phoenix, AZ, United StatesHQ checked Sep 7, 2026	1,001-5,000	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 7, 2026
20	Mastery Schools	Strong evidence	Philadelphia, PA, United StatesHQ checked Sep 7, 2026	1,001-5,000	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 7, 2026
21	Basis ED	Strong evidence	Scottsdale, AZ, United StatesHQ checked Sep 7, 2026	1,001-5,000	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 7, 2026
22	Kipp DC	Partial evidence	Washington, DC, United StatesHQ checked Sep 7, 2026	1,001-5,000	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 7, 2026
23	Kipp Foundation	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 7, 2026	n/a	878 contacts →
	Indirect evidence “Work Hard.” Source: RevenueBase Database · checked Sep 7, 2026
24	Alliance College-Ready Public Schools	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 7, 2026	1,001-5,000	877 contacts →
	Partial evidence “Alliance College-Ready Public Schools was founded in 2004 on the belief that all children – regardless of ZIP code, income, ability, or background – are capable of achieving at…” Source: RevenueBase Database · checked Sep 7, 2026
25	Battle Ground Public Schools	Partial evidence	Brush Prairie, WA, United StatesHQ checked Sep 7, 2026	1,001-5,000	857 contacts →
	Partial evidence “Battle Ground Public Schools educates students in an engaging environment that meets the needs of every learner.” Source: RevenueBase Database · checked Sep 7, 2026

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 schools. 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 schools.
Partial evidence: Its own public description names part of charter schools, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name charter schools. 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 2,502 charter schools based in the United States

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Charter schools based in the United States at a glance

As of Sep 7, 2026

42.1%Verified-email coverage

40.4%Mobile-number coverage

64.8Average contacts per company

11-50Median size (employees)

2.9%Largest-city concentration · New York

Sep 7, 2026Page data refreshed

Companies by employee count

1-10

549

11-50

742

51-200

825

201-500

225

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

62,4160–30

5,33931–60

3461–90

2090–180

364180+

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 schools, 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 schools”. 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 schools), 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 schools, 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, 68,173 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 7, 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 schools by metro

Frequently asked

How many charter schools are based in the United States?

This directory includes 2,502 charter schools based in the United States. It also contains 162,035 contacts and 68,173 email addresses.

What contact information is available for charter schools?

The directory contains 162,035 contacts and 68,173 email addresses for the listed charter schools. The data was updated in September 2026.

Which city has the most charter schools on the list?

New York is the single most-represented city among the companies on the list.

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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.