Company lists · Data refreshed September 2026

Top 25 K12 education platforms based in the United States

Name: K12 education platforms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 1,397 companies tracked

RevenueBase identified 1,397 k12 education platforms headquartered in the United States as of September 2026 and tracks 81,646 professional contacts across them, including 30,841 with verified work emails and 31,580 with mobile numbers. New York is the largest hub.

This list covers k12 education platforms 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 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 HQ checked on every row Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review

1,397Companies

81,646Contacts tracked

30,841Verified emails

31,580Mobile numbers

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The 25 largest k12 education platforms based in the United States

Ranked by team size

Top 25 of 1,397 k12 education platforms based in the United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names k12 education platforms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Houghton Mifflin HarcourtIndirect evidence	Boston, MO, United StatesHQ checked Sep 4, 2026	1,001-5,000	3,799
	“Please visit us at our new company page, HMH.” Source: company website · checked Sep 4, 2026
2	Teachers PAY TeachersIndirect evidence	New York, NY, United StatesHQ checked Sep 4, 2026	n/a	3,595
	“TPT (formerly Teachers Pay Teachers) exists to empower teachers to teach at their best.” Source: company website · checked Sep 4, 2026
3	PowerschoolPartial evidence	Folsom, CA, United StatesHQ checked Sep 4, 2026	1,001-5,000	3,291
	“PowerSchool is a leading provider of cloud-based software for K-12 education in North America.” Source: company website · checked Sep 4, 2026
4	AmplifyIndirect evidence	Brooklyn, NY, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,856
	“Amplify helps teachers bring delight and rigor to students every day.” Source: company website · checked Sep 4, 2026
5	Curriculum AssociatesPartial evidence	North Billerica, AZ, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,384
	“At Curriculum Associates, we believe in the potential of every child and are changing the face of education technology with award-winning learning programs like i-Ready that serve…” Source: company website · checked Sep 4, 2026
6	K12Strong evidence	Reston, VA, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,343
	“K12 is an online K–12 education provider operating under Stride, Inc, a publicly traded company headquartered in Reston, Virginia, serving students across all 50 states and…” Source: company website · checked Sep 4, 2026
7	BlackboardIndirect evidence	Boca Raton, FL, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,745
	“As part of the Anthology ecosystem, Blackboard Learn is designed to help students and educators achieve their goals through dynamic, data-informed experiences.” Source: company website · checked Sep 4, 2026
8	IXL LearningIndirect evidence	San Mateo (san Francisco Bay, CA, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,303
	“At IXL Learning, we are passionate about improving learning for all.” Source: company website · checked Sep 4, 2026
9	Chesapeake Public SchoolsIndirect evidence	Chesapeake, VA, United StatesHQ checked Sep 4, 2026	5,001-10,000	1,250
	“Chesapeake Public Schools serves over students in 45 schools, 2 centers, and a virtual academy program in Chesapeake, VA.” Source: company website · checked Sep 4, 2026
10	Evergreen Public SchoolsIndirect evidence	Vancouver, WA, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,194
	“One of the largest school districts in Washington state, Evergreen Public Schools emphasizes personalized learning, collaborative instruction, and graduation attainment for all…” Source: company website · checked Sep 4, 2026
11	study.comPartial evidence	Mountain View, CA, United StatesHQ checked Sep 4, 2026	n/a	1,188
	“Study.com was founded by Adrián Ridner and Ben Wilson to open the door to the life-changing impact of Education for all.” Source: company website · checked Sep 4, 2026
12	Minnetonka Public SchoolsIndirect evidence	Minnetonka, MN, United StatesHQ checked Sep 4, 2026	1,001-5,000	976
	“The Minnetonka Public School District is a high performing school district proudly serving families in all or part of 10 communities: Minnetonka, Chanhassen, Deephaven, Eden…” Source: company website · checked Sep 4, 2026
13	Lodi Unified School DistrictPartial evidence	Lodi, CA, United StatesHQ checked Sep 4, 2026	1,001-5,000	946
	“Welcome to Lodi Unified School District, an education destination in the heart of California’s San Joaquin Valley.” Source: company website · checked Sep 4, 2026
14	Belton ISDPartial evidence	Belton, TX, United StatesHQ checked Sep 4, 2026	1,001-5,000	938
	“Belton ISD’s mission is to provide an education that challenges every student to excel.” Source: company website · checked Sep 4, 2026
15	Battle Ground Public SchoolsIndirect evidence	Brush Prairie, WA, United StatesHQ checked Sep 4, 2026	1,001-5,000	858
	“Battle Ground Public Schools educates students in an engaging environment that meets the needs of every learner.” Source: company website · checked Sep 4, 2026
16	Oxnard School DistrictIndirect evidence	Oxnard, United StatesHQ checked Sep 4, 2026	1,001-5,000	853
	“Welcome to the Oxnard School District, nestled in the beautiful Ventura County, California.” Source: company website · checked Sep 4, 2026
17	Eastern Carver County SchoolsIndirect evidence	Chaska, MN, United StatesHQ checked Sep 4, 2026	1,001-5,000	786
	“Eastern Carver County Schools is a school district in Minnesota’s Southwest Metro that serves the cities of Chanhassen, Chaska, Carver and Victoria.” Source: company website · checked Sep 4, 2026
18	Stratford SchoolPartial evidence	Campbell, PA, United StatesHQ checked Sep 4, 2026	1,001-5,000	765
	“Stratford School, part of Spring Education Group, is a leading independent WASC-accredited private school in California offering courses from preschool through 12th grade with a…” Source: company website · checked Sep 4, 2026
19	Epic Charter SchoolsIndirect evidence	Oklahoma City, OK, United StatesHQ checked Sep 4, 2026	1,001-5,000	761
	“Founded in 2011, Epic Charter Schools (Epic) is Oklahoma’s largest public virtual charter school – and among the largest of its kind in the U.S.” Source: company website · checked Sep 4, 2026
20	West DES Moines Community SchoolsIndirect evidence	West Des Moines, IA, United StatesHQ checked Sep 4, 2026	1,001-5,000	683
	“The West Des Moines Community Schools (WDMCS) is a highly-ranked accredited public school district in Iowa with approximately students in grades K-12.” Source: company website · checked Sep 4, 2026
21	Florence Unified School District No. 1Indirect evidence	Florence, AZ, United StatesHQ checked Sep 4, 2026	1,001-5,000	627
	“Florence USD is located in the far east valley in the Phoenix metropolitan area, specifically Florence and San Tan Valley.” Source: company website · checked Sep 4, 2026
22	Carnegie LearningPartial evidence	Pittsburgh, PA, United StatesHQ checked Sep 4, 2026	501-1,000	599
	“Carnegie Learning is a leading provider of K–12 education technology, curriculum, and professional learning solutions.” Source: company website · checked Sep 4, 2026
23	Southeast Polk Community School DistrictIndirect evidence	Altoona, IA, United StatesHQ checked Sep 4, 2026	1,001-5,000	585
	“Southeast Polk Community School District (SEP) inspires youth daily with the latest instructional technology, progressive curriculum and state-of-the-art facilities.” Source: company website · checked Sep 4, 2026
24	CVUSDIndirect evidence	Chino, CA, United StatesHQ checked Sep 4, 2026	1,001-5,000	575
	“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: company website · checked Sep 4, 2026
25	ToddlePartial evidence	Phoenix, AZ, United StatesHQ checked Sep 4, 2026	201-500	557
	“Built for teachers, by teachers, Toddle is an AI-powered teaching & learning platform for progressive K-12 schools & districts.” Source: company website · checked Sep 4, 2026

Showing 25 of 1,397 k12 education platforms based in the United States

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K12 education platforms based in the United States at a glance

As of Sep 4, 2026

11-50Median size (employees)

New YorkLargest hub · 63 HQs

31,580Contacts with mobile numbers

Sep 4, 2026Data refreshed

Companies by employee count

1-10

498

11-50

456

51-200

230

201-500

107

501-1,000

1,001-5,000

5,001-10,000

10001+

Verified emails by last verification

0–30

31–60

2,663

61–90

16,480

90–180

11,533

180+

165

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 k12 education platforms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “k12 education platforms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among k12 education platforms, 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 an evidence 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, 30,841 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 4, 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.

K12 education platforms by metro

K12 education platforms in New York63

Frequently asked

How many k12 education platforms are there based in the United States?

RevenueBase identified 1,397 k12 education platforms 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?

Houghton Mifflin Harcourt, headquartered in Troy, tops this list with the largest team on record.

Which city has the most k12 education platforms?

New York leads with 63 headquartered companies, followed by San Francisco (24) and Austin (21).

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 30,841 verified decision-maker contacts tracked across these 1,397 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 4, 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.