Company lists · Data refreshed September 2026

Top 25 Montessori middle schools based in the United States

Name: Montessori middle schools based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 2,187 companies tracked

RevenueBase identified 2,187 montessori middle schools headquartered in the United States as of September 2026 and tracks 25,299 professional contacts across them, including 7,363 with verified work emails. New York is the largest hub.

This list covers montessori middle 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 20, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review

2,187Companies

25,299Contacts tracked

7,363Verified emails

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The 25 largest montessori middle schools based in the United States

Ranked by team size

Top 25 of 2,187 montessori middle schools based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to montessori middle schools: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Guidepost Montessori	Partial evidence	New York, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,137 contacts →
	Partial evidence “We are on a mission to bring high-quality Montessori education, everywhere.” Source: RevenueBase Database · checked Sep 20, 2026
2	Centennial School District	Strong evidence	Circle Pines, United StatesHQ checked Sep 20, 2026	201-500	608 contacts →
	Strong evidence “Centennial Middle School is a learning community located in Lino Lakes, Minnesota providing a high quality education to 1600 students in 6th, 7th and 8th grade.” Source: RevenueBase Database · checked Sep 20, 2026
3	South Texas Educational Technologies, INC	Indirect evidence	Weslaco, TX, United StatesHQ checked Sep 20, 2026	51-200	419 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
4	Montessori Community School	Strong evidence	Salt Lake City, UT, United StatesHQ checked Sep 20, 2026	51-200	359 contacts →
	Strong evidence “Location: 2416 East 1700 South Salt Lake City, UT 84108 (801) Ages: Toddler - 6th Grade The Montessori Community School offers a traditional, comprehensive Montessori curriculum…” Source: RevenueBase Database · checked Sep 20, 2026
5	Apple Montessori Schools	Strong evidence	Wayne, NJ, United StatesHQ checked Sep 20, 2026	501-1,000	339 contacts →
	Strong evidence “With over 50 years of setting the standard in early childhood education and with graduates from preschool through Elementary, Apple Montessori Schools is not just school, it’s a…” Source: RevenueBase Database · checked Sep 20, 2026
6	Montclair Kimberley Academy	Partial evidence	Montclair, NJ, United StatesHQ checked Sep 20, 2026	201-500	243 contacts →
	Partial evidence “Montclair Kimberley Academy (MKA) empowers students from age 4 to grade 12 to learn at their growing edge in a vibrant and engaged independent school community.” Source: RevenueBase Database · checked Sep 20, 2026
7	Community School	Partial evidence	St. Louis, MO, United StatesHQ checked Sep 20, 2026	51-200	183 contacts →
	Partial evidence “Community School is an independent elementary and preschool serving families with children age 3 through sixth grade.” Source: RevenueBase Database · checked Sep 20, 2026
8	California Montessori Project	Strong evidence	Carmichael, CA, United StatesHQ checked Sep 20, 2026	501-1,000	180 contacts →
	Strong evidence “California Montessori Project (CMP) is a public, tuition-free, TK-8, charter school network in the Greater Sacramento Area.” Source: RevenueBase Database · checked Sep 20, 2026
9	Merryhill School	Strong evidence	Henderson, NV, United StatesHQ checked Sep 20, 2026	1,001-5,000	180 contacts →
	Strong evidence “Merryhill preschools, elementary and middle schools build the solid academic foundation students need for future success.” Source: RevenueBase Database · checked Sep 20, 2026
10	Leport Montessori Schools	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	1,001-5,000	173 contacts →
	Partial evidence “LePort specializes in all facets of exceptional Montessori education and offers authentic AMI programs in English, Mandarin & Spanish.” Source: RevenueBase Database · checked Sep 20, 2026
11	Westside School	Strong evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	51-200	159 contacts →
	Strong evidence “Westside School is West Seattle’s premier choice for independent elementary and middle school education.” Source: RevenueBase Database · checked Sep 20, 2026
12	The Children's School	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 20, 2026	51-200	136 contacts →
	Indirect evidence “In 1970, our founder Lila McDill had one vision: children learn by doing.” Source: RevenueBase Database · checked Sep 20, 2026
13	Visitation Academy	Partial evidence	Saint Louis, MO, United StatesHQ checked Sep 20, 2026	51-200	130 contacts →
	Partial evidence “Visitation Academy is an independent, Catholic school offering a coeducational early childhood program and an all-girls environment in Grades 1-12.” Source: RevenueBase Database · checked Sep 20, 2026
14	TWO Rivers Public Charter School	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	128 contacts →
	Indirect evidence “Two Rivers serves more than 950 preschool through eighth grade students across two campuses in Northeast D.C.” Source: RevenueBase Database · checked Sep 20, 2026
15	ONE City Schools	Partial evidence	Madison, WI, United StatesHQ checked Sep 20, 2026	51-200	110 contacts →
	Partial evidence “One City Schools operates an award-winning independent preschool, a public charter (grades 4K - 5) elementary school and a public charter (grades 6 - 7) secondary school that is…” Source: RevenueBase Database · checked Sep 20, 2026
16	The Evergreen School	Partial evidence	Shoreline, WA, United StatesHQ checked Sep 20, 2026	51-200	110 contacts →
	Partial evidence “Located just north of Seattle in Shoreline, Washington, The Evergreen School has been educating highly capable, creative learners for over 60 years.” Source: RevenueBase Database · checked Sep 20, 2026
17	Near North Montessori School	Strong evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	51-200	105 contacts →
	Strong evidence “What you'll find at Near North Montessori School are dynamic learning laboratories – a school alive with students exploring questions about the world around them.” Source: RevenueBase Database · checked Sep 20, 2026
18	Catherine Cook	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	51-200	101 contacts →
	Partial evidence “Mission Statement Catherine Cook School is a vibrant learning community that fosters curiosity, develops critical thinking, and inspires compassionate leadership for students in…” Source: RevenueBase Database · checked Sep 20, 2026
19	City And Country School	Partial evidence	New York, NY, United StatesHQ checked Sep 20, 2026	51-200	100 contacts →
	Partial evidence “Founded in 1914, City and Country School serves children aged 2 through 8th grade and is the pinnacle of progressive education.” Source: RevenueBase Database · checked Sep 20, 2026
20	Kingsley Montessori School	Strong evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	51-200	94 contacts →
	Strong evidence “Located in the heart of Boston’s Back Bay, Kingsley is a Toddler through Grade 6 independent day school guided by a unique blend of Montessori philosophy and innovative…” Source: RevenueBase Database · checked Sep 20, 2026
21	The Independence School	Partial evidence	Newark, DE, United StatesHQ checked Sep 20, 2026	51-200	93 contacts →
	Partial evidence “The Independence School welcomes children from age 3 through 8th grade, providing a strong academic foundation on a beautiful 90-acre campus.” Source: RevenueBase Database · checked Sep 20, 2026
22	Westside Neighborhood School	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 20, 2026	51-200	91 contacts →
	Partial evidence “WNS is a preschool – 8th grade private independent school founded in 1980.” Source: RevenueBase Database · checked Sep 20, 2026
23	The Post OAK School	Partial evidence	Bellaire, TX, United StatesHQ checked Sep 20, 2026	51-200	88 contacts →
	Partial evidence “The Post Oak School is an independent school in Bellaire and Houston, Texas, serving students from 14 months through high school.” Source: RevenueBase Database · checked Sep 20, 2026
24	Wellan Montessori School	Strong evidence	Newton, MA, United StatesHQ checked Sep 20, 2026	51-200	87 contacts →
	Strong evidence “Wellan Montessori School (formerly Newton Montessori School) is an independent, coeducational school serving more than 240 families and 312 children ages 15 months through grade 8.” Source: RevenueBase Database · checked Sep 20, 2026
25	City Garden Montessori School	Strong evidence	Saint Louis, MO, United StatesHQ checked Sep 20, 2026	51-200	84 contacts →
	Strong evidence “City Garden Montessori School is a neighborhood charter school in the Shaw neighborhood of St.” Source: RevenueBase Database · checked Sep 20, 2026

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: montessori middle 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 montessori middle schools.
Partial evidence: Its own public description names part of montessori middle schools, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name montessori middle 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 2,187 montessori middle schools based in the United States

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Montessori middle schools based in the United States at a glance

As of Sep 20, 2026

29.1%Verified-email coverage

11.6Average contacts per company

11-50Median size (employees)

1.2%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

905

11-50

992

51-200

244

201-500

501-1,000

1,001-5,000

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 2,187 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 montessori middle 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 “montessori middle 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 montessori middle 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 montessori middle 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, 7,363 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 20, 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.

Montessori middle schools by metro

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 montessori middle 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 montessori middle schools are there based in the United States?

RevenueBase identified 2,187 montessori middle 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?

Guidepost Montessori, headquartered in New York, tops this list with the largest team on record.

Which city has the most montessori middle schools?

New York leads with 27 headquartered companies, followed by Chicago (25) and Houston (25).

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 7,363 verified decision-maker contacts tracked across these 2,187 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 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 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.