Company lists · Data refreshed September 2026

Top 21 Independent high schools based in Washington, United States

Name: Independent high schools based in Washington, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 31 companies tracked

RevenueBase identified 31 company matches for independent high schools associated with Washington, United States as of September 2026 and tracks 2,615 professional contacts across them, including 1,443 with verified work emails. Across the United States, New York is the largest hub for this category (105 companies); Washington has 31.

This list covers company matches for independent high schools associated with Washington, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 20, 2026 How this list was built

31Companies

2,615Contacts tracked

1,443Verified emails

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The 21 largest independent high schools based in Washington, United States

Ranked by team size

Top 21 of 31 company matches for independent high schools based in Washington, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Friendship Public Charter School	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	1,001-5,000	664 contacts →
	Exact match “Sign up to receive our Monthly Job Blast: http://tinyurl.com/jobblastsignup The mission of Friendship Public Charter School is to provide a world-class education that motivates…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2	Georgetown DAY School	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	201-500	302 contacts →
	Exact match “Georgetown Day School offers an educational program that fosters a love of learning while providing serious instruction in the academic disciplines, the arts, and physical…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3	DC Prep	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	201-500	287 contacts →
	Exact match “DC Prep is a network of public charter schools serving over 2,100 PK3 through 8th grade students across six campuses in Wards 5, 7, and 8.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4	Center City Public Charter Schools	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	201-500	182 contacts →
	Exact match “MISSION Center City Public Charter Schools (Center City PCS) empower our students for lifelong success by building strong character, promoting academic excellence, and generating…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5	E.L. Haynes Public Charter School	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	201-500	165 contacts →
	Exact match “Founded in 2004, the award-winning E.L.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6	Maret School	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	51-200	157 contacts →
	Exact match “MARET SCHOOL, founded in 1911, is a vibrant, K-12, independent school in Washington, DC.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7	Cesar Chavez Public Charter Schools	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	51-200	145 contacts →
	Exact match “Chavez Schools is a innovative secondary public charter school that prepares students to succeed in competitive colleges, and empowers them to become the civic leaders of the next…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8	TWO Rivers Public Charter School	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	51-200	128 contacts →
	Exact match “Two Rivers serves more than 950 preschool through eighth grade students across two campuses in Northeast D.C.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9	The Seed Foundation	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	201-500	113 contacts →
	Exact match “The SEED Foundation is a national nonprofit that partners with urban communities to provide innovative educational opportunities that prepare underserved students for success in…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10	Idea Public Charter School	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	51-200	87 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11	Digital Pioneers Academy	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	11-50	71 contacts →
	Exact match “The mission of Digital Pioneers Academy (DPA) is to develop the next generation of innovators.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12	DC Scholars Public Charter School	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	51-200	58 contacts →
	Exact match “DC Scholars Public Charter School prepares students to attend and succeed academically in high school and college, and DC Scholars provides students with a foundation of life…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13	Basis DC Public Charter School	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	51-200	51 contacts →
	Exact match “Welcome to BASIS Washington, D.C, home of the Red Giants!” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14	Kingsman Academy Public Charter School	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	51-200	45 contacts →
	Exact match “Kingsman Academy Public Charter School is an open-enrollment, tuition-free, public school that opened its doors in August 2015 in Washington, DC.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15	Washington Montessori Public Charter School	Exact match	Washington, NC, United StatesHQ recorded Sep 20, 2026	51-200	42 contacts →
	Exact match “Washington Montessori Public Charter School (WMPCS) is a non-profit, tuition-free alternative to traditional public schools with an annual budget of $3.5M.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16	Sojourner Truth Montessori Public Charter School	Exact match	Washington, United StatesHQ recorded Sep 20, 2026	11-50	34 contacts →
	Exact match “At The Sojourner Truth School, we are passionate about the education of the whole student.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17	Washington Latin Public Charter School	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	51-200	7 contacts →
	Exact match “Washington Latin Public Charter School is an eight-year college preparatory school which provides 700 students (grades 5-12) in the nation’s capital with a rich and comprehensive…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18	St. George Academy	Exact match	Washington, UT, United StatesHQ recorded Sep 20, 2026	11-50	7 contacts →
	Exact match “St George Academy comprehensively prepares students for a demanding college experience through an academically rigorous high school education.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19	Cedar Tree Academy Public Charter School	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	1-10	6 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20	Washington Catholic Schools	Exact match	Washington, IN, United StatesHQ recorded Sep 20, 2026	51-200	5 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21	Bowlegs Public School	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	1-10	2 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “independent high schools”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 21 of 31 independent high schools based in Washington, United States

See the full list, filter by size, metro and specialty, and access 1,443 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Independent high schools based in Washington, United States at a glance

As of Sep 20, 2026

55.2%Verified-email coverage

84.4Average contacts per company

51-200Median size (employees)

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 31 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Washington, United States whose business descriptions match “independent high schools” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,443 professional contacts with verified work emails across the full matched dataset. 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 20, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Independent high schools by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “independent high schools”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many independent high schools are there based in Washington, United States?

RevenueBase identified 31 company matches for independent high schools associated with Washington, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Friendship Public Charter School tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most independent high schools?

New York leads the United States with 105 company records, followed by Houston (88) and Los Angeles (66). Washington has 31.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,443 professional contacts with verified work emails tracked across these 31 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 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 SmartSearch, 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.