Company lists · Data refreshed September 2026
Top 25 K-12 assessment software providers based in the United States
RevenueBase identified 217 k-12 assessment software providers headquartered in the United States as of September 2026 and tracks 23,705 professional contacts across them, including 10,862 with verified work emails. New York is the largest hub.
This list covers k-12 assessment software providers 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 28, 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 assessment software providers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,645 contacts → | ||||
Indirect evidence “Please visit us at our new company page, HMH.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,860 contacts → | ||||
Indirect evidence “Amplify helps teachers bring delight and rigor to students every day.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,367 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 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,924 contacts → | ||||
Strong evidence “As a global leader in assessment, reading, and math solutions for pre-K–12 schools and districts, Renaissance is committed to providing educators with insights and resources to…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,691 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 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,293 contacts → | ||||
Indirect evidence “At IXL Learning, we are passionate about improving learning for all.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 526 contacts → | ||||
Strong evidence “As the leading experts in K-12 education assessment, Cambium Assessment delivers innovative, reliable, and actionable technologies.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 477 contacts → | ||||
Partial evidence “NWEA is a research-based, not-for-profit organization that supports students and educators worldwide by creating assessment solutions that precisely measure growth and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 314 contacts → | ||||
Partial evidence “Legacy strong, future focused.Scantron delivers technology-enabled assessment, analytics, and data services that empower organizations across education, business, and government…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 269 contacts → | ||||
Partial evidence “Dover, N.H-based Measured Progress, a national leader in assessment solutions, is merging with metro Atlanta-based AdvancED, the global leader in continuous improvement.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 237 contacts → | ||||
Strong evidence “Kiddom is the coherent instructional system for K-12 and the creator of Learning Intelligence Technology (LIT).” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 179 contacts → | ||||
Partial evidence “TeachTown is focused on providing software and solutions for students with disabilities.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 173 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 159 contacts → | ||||
Indirect evidence “MasteryPrep, founded by Craig Gehring in 2013, provides schools and districts with a suite of test prep tools and live services designed to improve student achievement on the ACT…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 131 contacts → | ||||
Indirect evidence “LinkIt!” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 116 contacts → | ||||
Indirect evidence “Pear Deck Learning is the only platform that offers teachers support for every instructional step in any topic-all in one place.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 114 contacts → | ||||
Strong evidence “Riverside Publishing is a leading publisher of superior educational, cognitive, and developmental assessment products in the United States, serving the K–12 educational and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 92 contacts → | ||||
Partial evidence “Albert.io is an all-in-one practice and assessment platform that unifies the best features of multiple curriculum tools - saving educators time, reducing costs, and supporting…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 89 contacts → | ||||
Partial evidence “Flashlight360 is a formative assessment tool that gives students a platform to showcase their speaking and writing skills, giving teachers a better understanding of the needs of…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 83 contacts → | ||||
Strong evidence “Drive student success with a unified K-12 solution for assessment, data, and insights.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 79 contacts → | ||||
Indirect evidence “About Vantage Learning Since 1990, Vantage Learning has provided educators with sophisticated knowledge and immediate feedback solutions to enhance student learning.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 73 contacts → | ||||
Indirect evidence “About Eduphoria!” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 68 contacts → | ||||
Partial evidence “eMetric is a leading pure-play technology provider dedicated to advancing the assessment industry.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 65 contacts → | ||||
Indirect evidence “The Acellus Learning System, a project of the International Academy of Science, was created with the goal of making a science of the learning process.” Source: RevenueBase Database · checked Sep 28, 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 assessment software providers. 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 assessment software providers.
- Partial evidence
- Its own public description names part of k-12 assessment software providers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name k-12 assessment software providers. 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 217 k-12 assessment software providers based in the United States
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K-12 assessment software providers based in the United States at a glance
As of Sep 28, 2026Companies by employee count
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 217 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 k-12 assessment software providers, 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 assessment software providers”. 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 assessment software providers), 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 assessment software providers, 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, 10,862 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 28, 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.
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 assessment software providers, 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 assessment software providers are there based in the United States?
RevenueBase identified 217 k-12 assessment software providers 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 Boston, tops this list with the largest team on record.
Which city has the most k-12 assessment software providers?
New York leads with 8 headquartered companies, followed by Austin (4) and Boston (4).
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 10,862 verified decision-maker contacts tracked across these 217 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 28, 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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