Company lists · Data refreshed September 2026

Top 25 Literacy intervention software companies based in the United States

RevenueBase identified 290 literacy intervention software companies headquartered in the United States as of September 2026 and tracks 28,924 professional contacts across them, including 12,875 with verified work emails. New York is the largest hub.

This list covers literacy intervention 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
290Companies
28,924Contacts tracked
12,875Verified emails
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The 25 largest literacy intervention software companies based in the United States

Ranked by team size
Top 25 of 290 literacy intervention 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 literacy intervention 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceBoston, MA, United StatesHQ checked Sep 28, 20261,001-5,0003,645 contacts →

Indirect evidence

“Please visit us at our new company page, HMH.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceBrooklyn, NY, United StatesHQ checked Sep 28, 20261,001-5,0002,860 contacts →

Indirect evidence

“Amplify helps teachers bring delight and rigor to students every day.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceNorth Billerica, MA, United StatesHQ checked Sep 28, 20261,001-5,0002,367 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, 2026
4Indirect evidenceWisconsin Rapids, WI, United StatesHQ checked Sep 28, 20261,001-5,0001,924 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
5Indirect evidenceParamus, NJ, United StatesHQ checked Sep 28, 20261,001-5,0001,691 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, 2026
6Indirect evidenceSan Mateo (san Francisco Bay, CA, United StatesHQ checked Sep 28, 20261,001-5,0001,293 contacts →

Indirect evidence

“At IXL Learning, we are passionate about improving learning for all.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceTucson, AZ, United StatesHQ checked Sep 28, 2026201-500915 contacts →

Partial evidence

“We support teachers with practical, research-based literacy solutions that improve outcomes for their students.”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceSan Luis Obispo, CA, United StatesHQ checked Sep 28, 2026501-1,000845 contacts →

Indirect evidence

“We believe that all children and adults can be taught to read and comprehend to their potential.”

Source: RevenueBase Database · checked Sep 28, 2026
9Strong evidenceNew Rochelle, NY, United StatesHQ checked Sep 28, 2026501-1,000673 contacts →

Strong evidence

“Benchmark Education Company (BEC) is a leading publisher of core, supplemental, and intervention literacy and language resources in English and Spanish, with valid and reliable…”

Source: RevenueBase Database · checked Sep 28, 2026
10Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 2026n/a625 contacts →

Strong evidence

“Ignite Reading partners with school districts nationwide to provide one-to-one early literacy intervention that closes students' reading gaps for good.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 28, 2026501-1,000599 contacts →

Indirect evidence

“Carnegie Learning is a leading provider of K–12 education technology, curriculum, and professional learning solutions.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidencePrinceton, NJ, United StatesHQ checked Sep 28, 202651-200260 contacts →

Indirect evidence

“Learning Ally is a leading education solutions organization committed to transforming the lives of struggling learners.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceColumbus, OH, United StatesHQ checked Sep 28, 202651-200252 contacts →

Partial evidence

“Zaner-Bloser develops curriculum resources to teach foundational literacy and math skills to students in prekindergarten through sixth grade.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 202651-200244 contacts →

Indirect evidence

“Amira, the first Learning Agent for Reading Growth,TM is developed from 30 years of neuroscience research out of Carnegie Mellon University, expertise in the Science of Reading…”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceOakland, CA, United StatesHQ checked Sep 28, 202651-200235 contacts →

Indirect evidence

“We accelerate learning by applying proven research on how the brain learns.”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceDallas, TX, United StatesHQ checked Sep 28, 2026201-500210 contacts →

Partial 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
17Indirect evidenceLincolnshire, IL, United StatesHQ checked Sep 28, 202651-200199 contacts →

Indirect evidence

“95 Percent Group is an education company whose mission is to build on the science of reading to empower teachers-supplying the knowledge, resources, and support they need-to…”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceCabin John, MD, United StatesHQ checked Sep 28, 2026201-500192 contacts →

Indirect evidence

“Learning Without Tears' mission is to instill the joy of learning and teaching within every classroom.”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceMarion, OH, United StatesHQ checked Sep 28, 2026201-500187 contacts →

Indirect 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
20Partial evidenceWoburn, MA, United StatesHQ checked Sep 28, 202651-200179 contacts →

Partial evidence

“TeachTown is focused on providing software and solutions for students with disabilities.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 202651-200138 contacts →

Indirect evidence

“NoRedInk’s mission is to help all students harness the power of the written word, and we currently help students in over 60% of US school districts become better writers.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceMount Pleasant, SC, United StatesHQ checked Sep 28, 202651-200137 contacts →

Indirect evidence

“Hawkes Learning specializes in educational technology & publishing.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceCharlotte, NC, United StatesHQ checked Sep 28, 2026501-1,000113 contacts →

Indirect evidence

“DreamBox Learning is now a part of Discovery Education!”

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceBethesda, MD, United StatesHQ checked Sep 28, 202651-200112 contacts →

Partial evidence

“EPS Learning has partnered with educators for more than 70 years to advance literacy as the springboard for lifelong learning and opportunity.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceRed Bank, NJ, United StatesHQ checked Sep 28, 202611-50107 contacts →

Partial evidence

“a McGraw Hill company, delivers a comprehensive suite of digital solutions that significantly accelerate literacy growth and deepen learning across the content areas.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 290 literacy intervention software companies based in the United States

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Literacy intervention software companies based in the United States at a glance

As of Sep 28, 2026
44.5%Verified-email coverage
99.7Average contacts per company
1-10Median size (employees)
6.6%Largest-city concentration · New York
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
145
11-50
79
51-200
41
201-500
9
501-1,000
6
1,001-5,000
9
10001+
1

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 290 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 literacy intervention 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 “literacy intervention 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 literacy intervention 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 literacy intervention 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, 12,875 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 literacy intervention 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 literacy intervention software companies are there based in the United States?

RevenueBase identified 290 literacy intervention 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 literacy intervention software companies?

New York leads with 19 headquartered companies, followed by San Francisco (10) and Atlanta (6).

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 12,875 verified decision-maker contacts tracked across these 290 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.