Company lists · Data refreshed September 2026
Top 25 K-12 software companies based in the United States
RevenueBase identified 617 k-12 software companies headquartered in the United States as of September 2026 and tracks 46,724 professional contacts across them, including 18,215 with verified work emails and 18,313 with mobile numbers. New York is the largest hub.
This list covers k-12 software companies 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 4, 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 k-12 software companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,799 contacts → | ||||
Indirect evidence “Please visit us at our new company page, HMH.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 2 | 3,291 contacts → | ||||
Strong evidence “PowerSchool is a leading provider of cloud-based software for K-12 education in North America.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,856 contacts → | ||||
Indirect evidence “Amplify helps teachers bring delight and rigor to students every day.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 4 | 2,384 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 5 | 2,343 contacts → | ||||
Strong evidence “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: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,966 contacts → | ||||
Indirect evidence “Catapult Learning is there for educators and their students.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,745 contacts → | ||||
Indirect evidence “As part of the Anthology ecosystem, Blackboard Learn is designed to help students and educators achieve their goals through dynamic, data-informed experiences.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,700 contacts → | ||||
Indirect evidence “Built upon a 130-year history, Savvas is recognized as an industry leader and innovator in education.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 9 | 1,303 contacts → | ||||
Indirect evidence “At IXL Learning, we are passionate about improving learning for all.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 10 | 661 contacts → | ||||
Indirect evidence “Promethean is a leading education technology company working to transform the way the world learns and collaborates.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 11 | 599 contacts → | ||||
Strong evidence “Carnegie Learning is a leading provider of K–12 education technology, curriculum, and professional learning solutions.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 12 | 590 contacts → | ||||
Indirect evidence “Less time on tasks.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 13 | 557 contacts → | ||||
Strong evidence “Built for teachers, by teachers, Toddle is an AI-powered teaching & learning platform for progressive K-12 schools & districts.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 14 | 540 contacts → | ||||
Indirect evidence “Quizlet is a leading consumer learning brand that builds learning tools to inspire and empower students and teachers.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 15 | 464 contacts → | ||||
Strong evidence “With over a decade of experience, GoGuardian delivers best-in-class solutions designed specifically for K–12 schools.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 16 | 453 contacts → | ||||
Partial evidence “Age of Learning® is the leading developer of engaging and effective Pre-K through 2nd grade learning resources that help children build a strong foundation for academic success…” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 17 | 437 contacts → | ||||
Partial evidence “Individual Software is a leading publisher and developer of award-winning education, business, and personal productivity software for consumers, schools, businesses, and…” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 18 | 426 contacts → | ||||
Partial evidence “Cambium Learning® Group is the education essentials company, providing award-winning education technology and services for PreK-12 markets.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 19 | 320 contacts → | ||||
Strong evidence “STS Education provides curated technology for modern learning, helping K-12 schools, colleges and universities across the U.S.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 20 | 311 contacts → | ||||
Indirect evidence “We believe technology is a powerful lever to make education equitable for all and the fastest way to improve educational outcomes now.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 21 | 285 contacts → | ||||
Indirect evidence “We're reimagining how learning happens when every student has their own classroom-connected AI mentor from kindergarten to career.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 22 | 276 contacts → | ||||
Indirect evidence “Trusted by 25 million educators, students, and families worldwide, Seesaw is your LMS with AI built in.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 23 | 269 contacts → | ||||
Strong evidence “ExploreLearning is an education technology company creating seriously fun solutions for the most critical challenges in K-12 STEM learning.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 24 | 246 contacts → | ||||
Strong evidence “Edupoint Educational Systems provides enterprise software solutions for K-12 data management, built on the most advanced technology in the industry.” Source: RevenueBase Database · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 25 | 245 contacts → | ||||
Indirect evidence “At Veracross, our vision is to unify school communities with world-class information systems that improve the quality of education and enhance learning.” Source: RevenueBase Database · checked Sep 4, 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: k-12 software companies. 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 k-12 software companies.
- Partial evidence
- Its own public description names part of k-12 software companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name k-12 software companies. 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 617 k-12 software companies based in the United States
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K-12 software companies based in the United States at a glance
As of Sep 4, 2026Companies by employee count
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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 k-12 software companies, 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 “k-12 software companies”. 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 k-12 software companies), 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 k-12 software companies, 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, 18,215 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.
K-12 software companies 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 k-12 software companies, 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 k-12 software companies are there based in the United States?
RevenueBase identified 617 k-12 software companies 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 k-12 software companies?
New York leads with 40 headquartered companies, followed by Austin (14) and San Francisco (13).
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 18,215 verified decision-maker contacts tracked across these 617 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 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.
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