Company lists · Data refreshed September 2026
Top 25 All-boys high schools based in the United States
RevenueBase identified 576 all-boys high schools headquartered in the United States as of September 2026 and tracks 32,168 professional contacts across them, including 13,134 with verified work emails. New York is the largest hub.
This list covers all-boys high schools 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 all-boys high schools based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 957 contacts → | ||||
Indirect evidence “Mission: To assist young men in their formation as leaders and men for others through rigorous college preparation in the Jesuit tradition.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 710 contacts → | ||||
Indirect evidence “Welcome to American Leadership Academy, where we combine academic excellence and character development to create an exceptional educational experience.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 572 contacts → | ||||
Strong evidence “Bosco Tech is an all-male Catholic high school sponsored by the Salesians of Don Bosco, USA West, that uniquely combines a rigorous college-preparatory and technology-focused…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 509 contacts → | ||||
Strong evidence “Army and Navy Academy is an internationally recognized college-preparatory military boarding school for boys, grades 7-12 that follows University of California standards and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 500 contacts → | ||||
Indirect evidence “Culver Academies is a values-based, mission-driven, vision-inspired institution that has been developing courageous leaders of honorable character, who are global citizens and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 340 contacts → | ||||
Partial evidence “Saint Andrew’s School is a nationally recognized junior kindergarten (pre-k) through grade 12, day and boarding, college preparatory school in Boca Raton, Florida, in southern…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 326 contacts → | ||||
Indirect evidence “St.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 316 contacts → | ||||
Partial evidence “Challenging and nurturing Mind, Body, and Spirit, an Episcopal Academy education inspires boys and girls to lead lives of purpose, faith, and integrity.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 293 contacts → | ||||
Partial evidence “Located five minutes from Chattanooga's vibrant downtown, Baylor is a coed, college preparatory, day/boarding school for students in grades 6-12.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 287 contacts → | ||||
Strong evidence “Gilman is a pre-kindergarten through twelfth-grade independent college preparatory school in Baltimore, Maryland, educating boys in mind, body, and spirit.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 279 contacts → | ||||
Partial evidence “Founded in 1903, Ransom Everglades School is a coeducational, college preparatory school for grades 6 - 12 located on two campuses in Coconut Grove, Florida.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 274 contacts → | ||||
Partial evidence “The Bolles School is a private college preparatory school with an international reputation for excellence.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 265 contacts → | ||||
Strong evidence “The Haverford School, a nonsectarian college preparatory school for pre-k-12 boys, is committed to developing the full intellectual, artistic, athletic, and moral potential of…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 260 contacts → | ||||
Partial evidence “Westtown School, a Quaker Pre-K -12th grade co-ed, private, college preparatory day and boarding school, offers an action-based education that emphasizes critical thinking…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 257 contacts → | ||||
Indirect evidence “At Springside Chestnut Hill Academy, we offer a unique educational model that empowers its younger students with a single-sex education in Pre-K through 8th and a coed experience…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 252 contacts → | ||||
Strong evidence “Mount Carmel High School is Chicago’s premier college preparatory school for young men.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 251 contacts → | ||||
Indirect evidence “St.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 240 contacts → | ||||
Partial evidence “Rye Country Day School is a coeducational, college preparatory school dedicated to providing students from Pre-Kindergarten through Grade 12 with an excellent education using both…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 231 contacts → | ||||
Partial evidence “Attracting some of the finest students and teachers in the country, Albuquerque Academy is an independent, coeducational, college preparatory day school of 1,100+ students in…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 225 contacts → | ||||
Strong evidence “Don Bosco Prep, founded in 1915, is a private, Catholic college preparatory high school for boys.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 221 contacts → | ||||
Partial evidence “A Catholic college preparatory school for young men in grades 9-12, the student body is representative of the city of Houston and students come from more than 125 zip codes.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 220 contacts → | ||||
Strong evidence “Landon School is a private school for boys in Grades 3-12 located in Bethesda, MD.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 204 contacts → | ||||
Strong evidence “Founded in 1877, Regis Jesuit High School is a Catholic, Jesuit, college preparatory high school serving young men and young women in grades 9-12.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 200 contacts → | ||||
Strong evidence “The Fessenden School is a Pre-K-Grade 9 Day and Boarding School for boys located in West Newton, Massachusetts.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 199 contacts → | ||||
Indirect evidence “St.” 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: all-boys 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 all-boys high schools.
- Partial evidence
- Its own public description names part of all-boys high schools, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name all-boys 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 576 all-boys high schools based in the United States
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All-boys high schools 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 576 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 all-boys 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.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “all-boys 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 all-boys 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 all-boys high 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, 13,134 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.
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 all-boys 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 all-boys high schools are there based in the United States?
RevenueBase identified 576 all-boys high schools 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?
St. Xavier High School, headquartered in Cincinnati, tops this list with the largest team on record.
Which city has the most all-boys high schools?
New York leads with 17 headquartered companies, followed by Houston (10) and Chicago (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 13,134 verified decision-maker contacts tracked across these 576 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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