Company lists · Data refreshed September 2026
Top 25 Alternative high schools worldwide
RevenueBase identified 563 alternative high schools worldwide as of September 2026 and tracks 10,926 professional contacts across them, including 3,371 with verified work emails. The United States is the largest market and Chicago the largest hub.
This list covers alternative high schools 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 alternative high schools 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 alternative high schools worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 530 contacts → | ||||
Partial evidence “LEARN4LIFE is network of non-profit public schools that provides students personalized learning, career training, and life skills.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 455 contacts → | ||||
Partial evidence “ChanceLight Behavioral Health, Therapy, & Education is the nation’s leading provider of alternative and special education programs for children and young adults.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 385 contacts → | ||||
Partial evidence “Originally established by the SF Sheriff’s Department (2003) as the first charter school in the nation to operate inside of a county jail, today Five Keys is a nationally…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 323 contacts → | ||||
Strong evidence “Our mission is to provide the highest quality education for all students, especially those who have struggled in a traditional high school setting, in order to ensure their…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 321 contacts → | ||||
Strong evidence “The San Mateo Union High School District (SMUHSD) provides award-winning high school and adult education to the residents of Foster City, San Mateo, Burlingame, Hillsborough…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 288 contacts → | ||||
Indirect evidence “Wij geloven in onze aanpak, en vooral in onze leerlingen.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 202 contacts → | ||||
Indirect evidence “Since our inception in 1996, we were founded on a simple principle: Every student, regardless of their background, has the right to pursue their potential and deserves access to…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 175 contacts → | ||||
Strong evidence “The School for Integrated Academics and Technologies (SIATech) is a network of public charter high schools with campuses throughout California.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 168 contacts → | ||||
Indirect evidence “At Acceleration Academies, we believe education isn’t one-size-fits-all.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 167 contacts → | ||||
Strong evidence “Welcome to Birmingham Community Charter High School.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 152 contacts → | ||||
Indirect evidence “Gateway Academy serves 6th-12th grade students with social and academic challenges through innovative approaches to learning, physical fitness, and social awareness.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 127 contacts → | ||||
Partial evidence “VISION Urban Dove envisions a world where all children receive the high-quality education and support they need and deserve.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 111 contacts → | ||||
Partial evidence “Saints College is privileged to walk alongside young people aged 12-25 who are seeking an alternative to mainstream education in a safe, inclusive, and supportive environment.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 101 contacts → | ||||
Partial evidence “YouthBuild Philadelphia Charter School is a 501(c)(3) organization with over 30 years of experience helping young people rebuild their lives.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 99 contacts → | ||||
Indirect evidence “At Oakmont Education, we serve students who need a second chance-and we’re looking for educators who want to make a real impact.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 93 contacts → | ||||
Strong evidence “The BUSY Schools is an alternative senior high school for Year 11 and 12 students who may have been struggling with traditional school.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 92 contacts → | ||||
Indirect evidence “Portland Opportunities Industrialization Center has, for more than 55 years, provided the highest quality services in education, job training and placement, community safety, and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 82 contacts → | ||||
Partial evidence “R.E.A.L.’s vision is to create outstanding alternative provision and services that enable young people who have been marginalised by their exceptional and complex special needs to…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 80 contacts → | ||||
Indirect evidence “At Mojave River Academy, one size does not fit all.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 79 contacts → | ||||
Strong evidence “Mountain Education (ME) is a non-traditional evening public high school with many locations across North Georgia.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 73 contacts → | ||||
Partial evidence “Yellow Breeches Educational Center (YBEC) is committed to providing a quality, comprehensive, life-enhancing educational experience that is an alternative to traditional settings…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 69 contacts → | ||||
Strong evidence “The Phoenix Charter Academy Network comprises three free, open-enrollment, college preparatory public high schools in Massachusetts.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 67 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 62 contacts → | ||||
Strong evidence “YouthBuild Charter School of California (YCSC) is a project-based high school serving young people ages 16-24 who previously left or were pushed out of the traditional school…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 56 contacts → | ||||
Indirect evidence 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: alternative high 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 alternative high schools.
- Partial evidence
- Its own public description names part of alternative high schools, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name alternative high 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 563 alternative high schools worldwide
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Alternative high schools 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 alternative high 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.
- Coverage
- Every country. Country and city lists for alternative high schools are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “alternative high 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 alternative high 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 alternative high schools, 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, 3,371 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.
Alternative high schools by location
2 lists · largest firstEvery Alternative high schools list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 alternative high schools, 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 alternative high schools are there worldwide?
RevenueBase identified 563 alternative high schools 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?
Learn4life Schools, headquartered in Worldwide, tops this list with the largest team on record.
Which country has the most alternative high schools?
The United States leads with 372 companies, followed by the United Kingdom (38). Every alternative high schools list by country and city is linked on this page.
Which city has the most alternative high schools?
Chicago leads with 10 headquartered companies, followed by Tucson (9) and Los Angeles (8).
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 3,371 verified decision-maker contacts tracked across these 563 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.