Company lists · Data refreshed September 2026
Top 25 Charter school networks worldwide
RevenueBase identified 2,786 charter school networks worldwide as of September 2026 and tracks 191,219 professional contacts across them, including 74,674 with verified work emails. The United States is the largest market and New York the largest hub.
This list covers charter school networks worldwide, 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. Country and city lists for charter school networks follow the table.
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 networks worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 5,140 contacts → | ||||
Partial evidence “Pasco County Schools is located just north of Tampa, Florida.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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. | |||||
| 5 | 4,017 contacts → | ||||
Partial evidence “Jeffco Public Schools, Colorado's second-largest K-12 district, has been providing educational excellence since 1950, building strong generational ties throughout the community…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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. | |||||
| 7 | 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. | |||||
| 8 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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. | |||||
| 10 | 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. | |||||
| 11 | 2,262 contacts → | ||||
Partial evidence “At Newport News Public Schools, we cultivate and empower every student’s potential through high-quality, rigorous instruction; personalized support; and strong relationships.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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. | |||||
| 13 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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. | |||||
| 15 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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. | |||||
| 18 | 1,270 contacts → | ||||
Strong evidence “Aldar Education is Abu Dhabi’s leading private K-12 education group and one of the UAE’s most established education providers serving over students across a network of 27 schools…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 1,238 contacts → | ||||
Partial evidence “one of the largest education networks of the world” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1,214 contacts → | ||||
Strong evidence “Imagine Schools is a national non-profit network of 54 public charter campuses educating approximately students in 8 states and the District of Columbia.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 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. | |||||
| 22 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 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. | |||||
| 24 | 1,087 contacts → | ||||
Indirect evidence “Ignite your desire to be the best!” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 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. | |||||
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 networks. 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 networks.
- Partial evidence
- Its own public description names part of charter school networks, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name charter school networks. 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 2,786 charter school networks worldwide
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Charter school networks worldwide at a glance
As of Sep 19, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 networks, 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.
- Coverage
- Every country. Country and city lists for charter school networks are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “charter school networks”. 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 networks), 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 networks, and records with no verified work email.
- 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, 74,674 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 networks by location
12 lists · largest firstEvery Charter school networks list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Cities
- Charter school networks based in New York, United States71
- Charter school networks based in Los Angeles, United States64
- Charter school networks based in Chicago, United States45
- Charter school networks based in Philadelphia, United States44
- Charter school networks based in Phoenix, United States41
- Charter school networks based in Houston, United States37
- Charter school networks based in Memphis, United States34
- Charter school networks based in Bronx, United States32
- Charter school networks based in Indianapolis, United States29
- Charter school networks based in Washington, United States28
- Charter school networks based in Miami, United States26
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 networks, 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 networks are there worldwide?
RevenueBase identified 2,786 charter school networks worldwide 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?
Charlotte-Mecklenburg Schools, headquartered in Charlotte, tops this list with the largest team on record.
Which country has the most charter school networks?
The United States leads with 2,413 companies. Every charter school networks list by country and city is linked on this page.
Which city has the most charter school networks?
New York leads with 71 headquartered companies, followed by Los Angeles (64) and Chicago (45).
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 74,674 verified decision-maker contacts tracked across these 2,786 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.