Company lists · Data refreshed September 2026

Top 25 Education development organizations based in the United States

Name: Education development organizations based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 3,030 companies tracked

RevenueBase identified 3,030 education development organizations headquartered in the United States as of September 2026 and tracks 65,654 professional contacts across them, including 16,880 with verified work emails. New York is the largest hub.

This list covers education development organizations 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

3,030Companies

65,654Contacts tracked

16,880Verified emails

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The 25 largest education development organizations based in the United States

Ranked by team size

Top 25 of 3,030 education development organizations based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to education development organizations: 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	SEO Sponsors For Educational Opportunity	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	n/a	3,870 contacts →
	Partial evidence “Founded in 1963 during the Civil Rights Movement, SEO closes educational and career opportunity gaps for ambitious young people annually.” Source: RevenueBase Database · checked Sep 19, 2026
2	Catapult Learning	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,970 contacts →
	Indirect evidence “Catapult Learning is there for educators and their students.” Source: RevenueBase Database · checked Sep 19, 2026
3	Education Connection	Partial evidence	Litchfield, CT, United StatesHQ checked Sep 19, 2026	n/a	1,865 contacts →
	Partial evidence “Develops professional development activities for educators; leads strategic planning initiatives; supports innovative teaching and learning projects (including eLearning…” Source: RevenueBase Database · checked Sep 19, 2026
4	Teaching Matters	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	n/a	1,805 contacts →
	Partial evidence “A teacher development non-profit committed to increasing teacher effectiveness to prepare urban students with critical-thinking and college readiness skills.” Source: RevenueBase Database · checked Sep 19, 2026
5	Winrock International	Indirect evidence	Little Rock, AR, United StatesHQ checked Sep 19, 2026	201-500	1,166 contacts →
	Indirect evidence “Winrock is a recognized leader in U.S.” Source: RevenueBase Database · checked Sep 19, 2026
6	Harvard Graduate School Of Education	Partial evidence	Cambridge, MA, United StatesHQ checked Sep 19, 2026	5,001-10,000	935 contacts →
	Partial evidence “Education touches every aspect of human activity.” Source: RevenueBase Database · checked Sep 19, 2026
7	Institute Of International Education	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	501-1,000	917 contacts →
	Partial evidence “Founded in 1919, IIE manages international education programs that connect individuals, institutions, and governments in 180+ countries around the world.” Source: RevenueBase Database · checked Sep 19, 2026
8	IREX	Strong evidence	Washington, DC, United StatesHQ checked Sep 19, 2026	201-500	884 contacts →
	Strong evidence “An innovative global development and education organization advancing learner success and empowering leaders through visionary, lasting initiatives.” Source: RevenueBase Database · checked Sep 19, 2026
9	American Councils For International Education	Partial evidence	Washington, DC, United StatesHQ checked Sep 19, 2026	501-1,000	805 contacts →
	Partial evidence “The world’s most successful institutions and determined nations work with American Councils for International Education through cultural exchange, language training, and…” Source: RevenueBase Database · checked Sep 19, 2026
10	St. Ambrose University	Indirect evidence	Davenport, IA, United StatesHQ checked Sep 19, 2026	501-1,000	804 contacts →
	Indirect evidence “Inspiring infinite growth that serves and transforms people, communities, and our world.” Source: RevenueBase Database · checked Sep 19, 2026
11	ART Of Problem Solving	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	802 contacts →
	Indirect evidence “Art of Problem Solving (AoPS) is dedicated to discovering, inspiring, and training the next generation of problem solvers.” Source: RevenueBase Database · checked Sep 19, 2026
12	CEA Capa Education Abroad	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 19, 2026	201-500	782 contacts →
	Partial evidence “Embark on a transformative educational journey with CEA CAPA Education Abroad!” Source: RevenueBase Database · checked Sep 19, 2026
13	NYU Steinhardt School Of Culture, Education, And Human Development	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	501-1,000	629 contacts →
	Indirect evidence “The Steinhardt School at New York University is a vibrant institution responding to social change.” Source: RevenueBase Database · checked Sep 19, 2026
14	Broome-Tioga Boces	Partial evidence	Binghamton, United StatesHQ checked Sep 19, 2026	1,001-5,000	589 contacts →
	Partial evidence “Occupational and Vocational Education” Source: RevenueBase Database · checked Sep 19, 2026
15	International Schools Services	Indirect evidence	Princeton, NJ, United StatesHQ checked Sep 19, 2026	51-200	583 contacts →
	Indirect evidence “International Schools Services (ISS) works with more than 1,200 international schools and tens of thousands of educators each year across its suite of services, creating one of…” Source: RevenueBase Database · checked Sep 19, 2026
16	Solution Tree	Partial evidence	Bloomington, IN, United StatesHQ checked Sep 19, 2026	51-200	552 contacts →
	Partial evidence “Solution Tree delivers comprehensive professional development to schools and districts around the world.” Source: RevenueBase Database · checked Sep 19, 2026
17	Louisiana Department Of Education	Indirect evidence	Baton Rouge, LA, United StatesHQ checked Sep 19, 2026	501-1,000	500 contacts →
	Indirect evidence “Ensuring every child is on track for success after graduation, removing barriers to equity, and providing educators with what they need to be at their best are among the…” Source: RevenueBase Database · checked Sep 19, 2026
18	Edplus At Arizona State University	Indirect evidence	Scottsdale, AZ, United StatesHQ checked Sep 19, 2026	501-1,000	485 contacts →
	Indirect evidence “EdPlus is a focal point for blending technology with teaching and learning ecosystems, in order to achieve greater scale, more efficient delivery and better learning outcomes in…” Source: RevenueBase Database · checked Sep 19, 2026
19	Ilumno	Indirect evidence	Miami, FL, United StatesHQ checked Sep 19, 2026	501-1,000	471 contacts →
	Indirect evidence “Ilumno has been a strategic growth partner for high quality universities in Latin America since 2005, seeking to improve lives and transform societies in the region.” Source: RevenueBase Database · checked Sep 19, 2026
20	Gulliver Preparatory School	Partial evidence	Pinecrest, FL, United StatesHQ checked Sep 19, 2026	501-1,000	467 contacts →
	Partial evidence “Gulliver is a leading school of distinction, founded in 1926 and rooted in nearly a century of educational excellence.” Source: RevenueBase Database · checked Sep 19, 2026
21	World Education	Partial evidence	Boston, MA, United StatesHQ checked Sep 19, 2026	501-1,000	426 contacts →
	Partial evidence “At World Education, a JSI initiative, we believe that high-quality education is a powerful driver of opportunity and progress.” Source: RevenueBase Database · checked Sep 19, 2026
22	Classera	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	201-500	405 contacts →
	Partial evidence “Classera stands with a mission to disrupt the education ecosystem, focusing on developing smart e-learning solutions that transform today’s traditional classrooms into a new…” Source: RevenueBase Database · checked Sep 19, 2026
23	University Of Oklahoma Outreach	Indirect evidence	Norman, OK, United StatesHQ checked Sep 19, 2026	1,001-5,000	398 contacts →
	Indirect evidence “OU Outreach is a lifelong learning organization dedicated to helping individuals, groups, businesses, and communities transform themselves through knowledge.” Source: RevenueBase Database · checked Sep 19, 2026
24	English Language Institute China Elic	Indirect evidence	Fort Collins, CO, United StatesHQ checked Sep 19, 2026	201-500	396 contacts →
	Indirect evidence “ELIC proudly recruits, trains, and sends hundreds of people each year to teach in long-term and short-term programs throughout Asia, the Middle East, and North Africa.” Source: RevenueBase Database · checked Sep 19, 2026
25	Wilson Language Training	Indirect evidence	Oxford, MA, United StatesHQ checked Sep 19, 2026	201-500	388 contacts →
	Indirect evidence “Our mission is to provide quality professional learning and ongoing support so that educators have the skills and tools they need to help their students become fluent, independent…” Source: RevenueBase Database · checked Sep 19, 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: education development organizations. 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 education development organizations.
Partial evidence: Its own public description names part of education development organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name education development organizations. 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 3,030 education development organizations based in the United States

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Education development organizations based in the United States at a glance

As of Sep 19, 2026

25.7%Verified-email coverage

21.7Average contacts per company

1-10Median size (employees)

5.2%Largest-city concentration · New York

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

1,820

11-50

775

51-200

268

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 3,030 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 education development organizations, 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 “education development organizations”. 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 education development organizations), 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 education development organizations, 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, 16,880 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.

Education development organizations 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 education development organizations, 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 education development organizations are there based in the United States?

RevenueBase identified 3,030 education development organizations 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?

SEO Sponsors For Educational Opportunity, headquartered in New York, tops this list with the largest team on record.

Which city has the most education development organizations?

New York leads with 158 headquartered companies, followed by Washington (93) and Los Angeles (55).

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 16,880 verified decision-maker contacts tracked across these 3,030 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.