Company lists · Data refreshed September 2026
Top 25 Secondary schools based in the United States
RevenueBase identified 2,344 secondary schools headquartered in the United States as of September 2026 and tracks 70,748 professional contacts across them, including 21,290 with verified work emails. Houston is the largest hub.
This list covers secondary 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 21, 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 secondary schools based in the United States
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 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,502 contacts → | ||||
Strong evidence “Allen ISD is a nationally recognized public school district providing outstanding educational opportunities for elementary and secondary students.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,051 contacts → | ||||
Partial evidence “Lynchburg City Schools offer educational services to more than students enrolled in preschool through adult classes in two high schools, three middle schools, and eleven…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 852 contacts → | ||||
Partial evidence “Plymouth-Canton Community Schools operates 15 elementary schools, five middle schools, three high schools & an alternative high school program.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 748 contacts → | ||||
Partial evidence “Welcome to the Central Valley School District #356 (CVSD), located in Spokane Valley, Washington.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 665 contacts → | ||||
Partial evidence “The Watertown Public Schools (MA) provide education to preschool through twelfth-grade students in three elementary schools, one middle school, and one comprehensive high school.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 650 contacts → | ||||
Partial evidence “From Pre-K to senior year, Woodward Academy is more than a school-it’s a launchpad for future global leaders.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 574 contacts → | ||||
Partial evidence “Chino Valley Unified School District (CVUSD) was founded in 1860 and serves approximately students across 35 schools within the Chino Valley and South Ontario areas.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 566 contacts → | ||||
Partial evidence “Evanston Township High School (ETHS) District 202 is a four-year (9-12), comprehensive high school occupying a 65-acre campus in Evanston, Illinois, a suburb of Chicago along the…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 526 contacts → | ||||
Partial evidence “Founded in 1901, New Trier Township High School District 203 is a comprehensive four-year high school in Northfield and Winnetka, Illinois, along the Lake Michigan shore and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 322 contacts → | ||||
Partial evidence “The Leyden High Schools serve all or part of the following suburban communities: Franklin Park, Northlake, Rosemont, Schiller Park, River Grove, Melrose Park, and unincorporated…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 290 contacts → | ||||
Partial evidence “Founded in 1854, Poly Prep Country Day School has a distinguished legacy of educational success.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 285 contacts → | ||||
Partial evidence “Shady Side Academy is a nationally respected private school in Pittsburgh for boys and girls in grades PK-12, with optional boarding for grades 9-12.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 274 contacts → | ||||
Partial evidence “The Potomac School is remarkable for its 100 years of excellence in teaching and learning.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 267 contacts → | ||||
Partial evidence “Founded in 1903, Isidore Newman School is a co-educational independent school that serves high achieving and highly motivated students in pre-kindergarten through 12th grade.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 260 contacts → | ||||
Partial evidence “The Warwick School District is located in one of the most scenic and progressive areas of southeast Pennsylvania in the northern portion of Lancaster County.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 251 contacts → | ||||
Indirect evidence “St.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 250 contacts → | ||||
Partial evidence “Dwight-Englewood School offers a seamless education experience from preschool through grade 12 and gives students the highest quality preparation for college and university work…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 241 contacts → | ||||
Partial evidence “University School of Milwaukee offers an independent, coeducational, college preparatory education for students in prekindergarten (age 3) through twelfth grade.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 236 contacts → | ||||
Strong evidence “Vallivue School District is a primary/secondary education company based out of 5207 S Montana Ave, Caldwell, Idaho, United States.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 233 contacts → | ||||
Partial evidence “Where Excellence Is Tradition Glenbard Township High School District 87 is the fourth-largest high school district in Illinois.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 230 contacts → | ||||
Partial evidence “Cannon School is a private independent junior kindergarten through 12th grade college-preparatory institution.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 226 contacts → | ||||
Partial evidence “The Masters School is a premier day and boarding school that engages 5th through 12th grade students with a challenging academic program in a welcoming learning environment.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 221 contacts → | ||||
Partial evidence “The Galloway School is a community where learning is joyful, individuals are valued, and self-discovery is encouraged.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 218 contacts → | ||||
Partial evidence “Spanning 5.2 square miles, Whitehall City Schools (WCS) serves the educational needs of its closely knit community of 19,201 people.” Source: RevenueBase Database · checked Sep 21, 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: secondary 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 secondary schools.
- Partial evidence
- Its own public description names part of secondary schools, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name secondary 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 2,344 secondary schools based in the United States
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Secondary schools based in the United States at a glance
As of Sep 21, 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 2,344 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 secondary 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 “secondary 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 secondary 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 secondary 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, 21,290 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 21, 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 secondary 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 secondary schools are there based in the United States?
RevenueBase identified 2,344 secondary 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?
Charlotte-Mecklenburg Schools, headquartered in Charlotte, tops this list with the largest team on record.
Which city has the most secondary schools?
Houston leads with 22 headquartered companies, followed by Fort Worth (17) and New York (17).
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 21,290 verified decision-maker contacts tracked across these 2,344 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 21, 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.