Company lists · Data refreshed September 2026

Top 25 Educational diagnostic software companies based in the United States

Name: Educational diagnostic software companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 321 companies tracked

RevenueBase identified 321 educational diagnostic software companies headquartered in the United States as of September 2026 and tracks 20,575 professional contacts across them, including 8,455 with verified work emails. New York is the largest hub.

This list covers educational diagnostic 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 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

321Companies

20,575Contacts tracked

8,455Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest educational diagnostic software companies based in the United States

Ranked by team size

Top 25 of 321 educational diagnostic software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to educational diagnostic software companies: 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	Houghton Mifflin Harcourt	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,645 contacts →
	Indirect evidence “Please visit us at our new company page, HMH.” Source: RevenueBase Database · checked Sep 28, 2026
2	Amplify	Indirect evidence	Brooklyn, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,860 contacts →
	Indirect evidence “Amplify helps teachers bring delight and rigor to students every day.” Source: RevenueBase Database · checked Sep 28, 2026
3	Renaissance Learning	Indirect evidence	Wisconsin Rapids, WI, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,924 contacts →
	Indirect 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, 2026
4	Savvas Learning Company	Partial evidence	Paramus, NJ, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,691 contacts →
	Partial evidence “Built upon a 130-year history, Savvas is recognized as an industry leader and innovator in education.” Source: RevenueBase Database · checked Sep 28, 2026
5	IXL Learning	Indirect evidence	San Mateo (san Francisco Bay, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,293 contacts →
	Indirect evidence “At IXL Learning, we are passionate about improving learning for all.” Source: RevenueBase Database · checked Sep 28, 2026
6	Cambium Assessment	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	501-1,000	526 contacts →
	Partial evidence “As the leading experts in K-12 education assessment, Cambium Assessment delivers innovative, reliable, and actionable technologies.” Source: RevenueBase Database · checked Sep 28, 2026
7	NWEA	Indirect evidence	Portland, OR, United StatesHQ checked Sep 28, 2026	501-1,000	477 contacts →
	Indirect 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, 2026
8	Scantron	Partial evidence	Eagan, MN, United StatesHQ checked Sep 28, 2026	51-200	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, 2026
9	Riverside Insights	Indirect evidence	Remote, United StatesHQ checked Sep 28, 2026	201-500	300 contacts →
	Indirect evidence “Riverside Insights® has been providing research-backed assessments for nearly a century, empowering educators with the insights needed to understand each student’s strengths and…” Source: RevenueBase Database · checked Sep 28, 2026
10	Schoolai	Indirect evidence	Lehi, UT, United StatesHQ checked Sep 28, 2026	51-200	276 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 28, 2026
11	Measured Progress	Indirect evidence	Dover, NH, United StatesHQ checked Sep 28, 2026	201-500	269 contacts →
	Indirect 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, 2026
12	Scientific Learning, A Carnegie Learning Company	Indirect evidence	Oakland, CA, United StatesHQ checked Sep 28, 2026	51-200	235 contacts →
	Indirect evidence “We accelerate learning by applying proven research on how the brain learns.” Source: RevenueBase Database · checked Sep 28, 2026
13	Voyager Sopris Learning	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	201-500	210 contacts →
	Indirect evidence “Fully focused on intervention, we have established four decades of results that demonstrate the efficacy of our solutions.” Source: RevenueBase Database · checked Sep 28, 2026
14	Meta Solutions Metropolitan Educational Technology Association	Partial evidence	Marion, OH, United StatesHQ checked Sep 28, 2026	201-500	187 contacts →
	Partial evidence “We strive for nothing less than realizing the full potential of education; providing effective, data-driven solutions designed to support a new era of innovation, growth and…” Source: RevenueBase Database · checked Sep 28, 2026
15	Teachtown	Partial evidence	Woburn, MA, United StatesHQ checked Sep 28, 2026	51-200	179 contacts →
	Partial evidence “TeachTown is focused on providing software and solutions for students with disabilities.” Source: RevenueBase Database · checked Sep 28, 2026
16	Questar Assessment INC	Indirect evidence	Apple Valley, MN, United StatesHQ checked Sep 28, 2026	1,001-5,000	173 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
17	Masteryprep	Indirect evidence	Baton Rouge, LA, United StatesHQ checked Sep 28, 2026	51-200	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, 2026
18	Istation	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	201-500	140 contacts →
	Indirect evidence “Istation and Amira have united to bring you a new era in student growth - the Intelligent Growth Engine.” Source: RevenueBase Database · checked Sep 28, 2026
19	Hawkes Learning	Partial evidence	Mount Pleasant, SC, United StatesHQ checked Sep 28, 2026	51-200	137 contacts →
	Partial evidence “Hawkes Learning specializes in educational technology & publishing.” Source: RevenueBase Database · checked Sep 28, 2026
20	Branching Minds	Indirect evidence	NY, United StatesHQ checked Sep 28, 2026	51-200	123 contacts →
	Indirect evidence “Branching Minds unites the learning sciences and technology to empower teachers to quickly identify students' cognitive and behavioral challenges and strengths; curates learning…” Source: RevenueBase Database · checked Sep 28, 2026
21	Riverside Publishing	Partial evidence	Rolling Meadows, IL, United StatesHQ checked Sep 28, 2026	201-500	114 contacts →
	Partial 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, 2026
22	Dreambox Learning	Partial evidence	Charlotte, NC, United StatesHQ checked Sep 28, 2026	501-1,000	113 contacts →
	Partial evidence “DreamBox Learning is now a part of Discovery Education!” Source: RevenueBase Database · checked Sep 28, 2026
23	Albert Learn By Doing	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	51-200	92 contacts →
	Indirect 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, 2026
24	Illuminate Education, INC	Partial evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	501-1,000	87 contacts →
	Partial evidence “Illuminate Education partners with educators to reach new levels of student performance, empowering teachers with data to serve the whole child.” Source: RevenueBase Database · checked Sep 28, 2026
25	Mobymax	Indirect evidence	Pittsburgh, PA, United StatesHQ checked Sep 28, 2026	51-200	86 contacts →
	Indirect evidence “MobyMax has just the right amount of everything that a teacher needs to effectively close learning gaps.” Source: RevenueBase Database · checked Sep 28, 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: educational diagnostic 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 educational diagnostic software companies.
Partial evidence: Its own public description names part of educational diagnostic software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name educational diagnostic 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 321 educational diagnostic software companies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 8,455 reachable decision-makers.

Free signup · no credit card

View the full list →

Educational diagnostic software companies based in the United States at a glance

As of Sep 28, 2026

41.1%Verified-email coverage

64.1Average contacts per company

11-50Median size (employees)

4.7%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

150

11-50

51-200

201-500

501-1,000

1,001-5,000

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 321 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 educational diagnostic 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 “educational diagnostic 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 educational diagnostic 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 educational diagnostic 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, 8,455 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 educational diagnostic 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 educational diagnostic software companies are there based in the United States?

RevenueBase identified 321 educational diagnostic 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 Boston, tops this list with the largest team on record.

Which city has the most educational diagnostic software companies?

New York leads with 15 headquartered companies, followed by Chicago (9) and Austin (8).

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 8,455 verified decision-maker contacts tracked across these 321 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.

Ready to reach these companies? Verified emails and direct dials for all 321 educational diagnostic software companies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Educational diagnostic software companies by geography

Browse the directory

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.