Company lists · Data refreshed November 2026

Top 25 Test development and publishing companies based in the United States

RevenueBase identified 64 company matches for test development and publishing companies associated with the United States as of November 2026 and tracks 7,876 professional contacts across them, including 1,749 with verified work emails. Austin is the largest hub.

This list covers company matches for test development and publishing companies associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
64Companies
7,876Contacts tracked
1,749Verified emails
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The 25 largest test development and publishing companies based in the United States

Ranked by team size
Top 25 of 64 company matches for test development and publishing companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchIowa City, IA, United StatesHQ recorded Nov 6, 2026n/a3,555 contacts →

Exact match

“ACT is transforming college and career readiness pathways so that everyone can discover and fulfill their potential.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchWashington, VA, United StatesHQ recorded Nov 6, 2026501-1,000536 contacts →

Exact match

“As the leading experts in K-12 education assessment, Cambium Assessment delivers innovative, reliable, and actionable technologies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchPortland, OR, United StatesHQ recorded Nov 6, 2026501-1,000485 contacts →

Exact match

“NWEA is a research-based, not-for-profit organization that supports students and educators worldwide by creating assessment solutions that precisely measure growth and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMclean, VA, United StatesHQ recorded Nov 6, 20261,001-5,000439 contacts →

Exact match

“Meazure Learning provides secure, reliable, and convenient test development, administration, and delivery solutions for academic and professional credentialing programs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchDover, NH, United StatesHQ recorded Nov 6, 2026201-500298 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchApple Valley, MN, United StatesHQ recorded Nov 6, 20261,001-5,000193 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchTorrance, CA, United StatesHQ recorded Nov 6, 202651-200142 contacts →

Exact match

“A family business since 1948, WPS publishes psychological and educational assessments that practitioners trust.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchRolling Meadows, IL, United StatesHQ recorded Nov 6, 2026201-500121 contacts →

Exact match

“Riverside Publishing is a leading publisher of superior educational, cognitive, and developmental assessment products in the United States, serving the K–12 educational and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchChampaign, IL, United StatesHQ recorded Nov 6, 2026501-1,00082 contacts →

Exact match

“As an educational development, testing, and consulting company, it is MetriTech's mission to support education stakeholders in the development of human potential.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSan Diego, CA, United StatesHQ recorded Nov 6, 202611-5081 contacts →

Exact match

“CASAS is a nonprofit organization that provides assessments of basic skills for youth and adults and curricular tools to target instruction.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchMaryland Heights, MO, United StatesHQ recorded Nov 6, 202651-20068 contacts →

Exact match

“GW is in the business of enhancing learning experiences, improving learning outcomes, and developing user-friendly reference materials.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchAustin, TX, United StatesHQ recorded Nov 6, 202651-20067 contacts →

Exact match

“New Meridian is a nonprofit assessment company on a mission to support quality education for all students by fostering deeper learning.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchAustin, TX, United StatesHQ recorded Nov 6, 202651-20038 contacts →

Exact match

“PRO-ED is a leading publisher of:* standardized tests (assessments)* books (resource and reference texts)* curricular and therapy materials * professional journals We produce the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchPrinceton, FL, United StatesHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“Strasz Assessment Systems creates custom assessment software and provides assessment system-related consulting services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchGlen Head, United StatesHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“RALLY!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchEugene, OR, United StatesHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“We believe in the power of education to change lives.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBrea, CA, United StatesHQ recorded Nov 6, 202611-5030 contacts →

Exact match

“For over 40 years, Ballard & Tighe, Publishers has focused on developing products for English language learners.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchRedmond, WA, United StatesHQ recorded Nov 6, 202651-20025 contacts →

Exact match

“For the past 20 years Respondus has been reshaping how students are assessed.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchDawson, MN, United StatesHQ recorded Nov 6, 202611-5018 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchHeber City, UT, United StatesHQ recorded Nov 6, 20261-1015 contacts →

Exact match

“CMS is a full-service testing services company, including online test administration, test design and development, psychometric reviews and evaluations, the AUTHORWise item…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchTallahassee, FL, United StatesHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Prolydian helps test publishers and administrators use technology to improve the testing experience from design to delivery."Why Prolydian?" you may ask.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchCanton, OH, United StatesHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“LEAP has the experience to manage the content development or production of any publishing product, regardless of the distribution media or market.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchNovato, CA, United StatesHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Academic Therapy Publications (ATP) was founded in 1965 by John I.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchChesapeake, VA, United StatesHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Disruptive operating system for assessment publishing professionals.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchPortland, OR, United StatesHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Mountain Measurement’s mission is to design and develop superior assessment programs and to cultivate extraordinary insight from examination data.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 64 test development and publishing companies based in the United States

See the full list, filter by size, metro and specialty, and access 1,749 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Test development and publishing companies based in the United States at a glance

As of Nov 6, 2026
22.2%Verified-email coverage
123.1Average contacts per company
11-50Median size (employees)
3.1%Largest-city concentration · Austin
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
23
11-50
22
51-200
7
201-500
4
501-1,000
5
1,001-5,000
3

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 64 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with the United States whose business descriptions match “test development and publishing companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,749 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “test development and publishing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many test development and publishing companies are there based in the United States?

RevenueBase identified 64 company matches for test development and publishing companies associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

ACT tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most test development and publishing companies?

Austin leads with 2 company records, followed by Houston (2) and Portland (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,749 professional contacts with verified work emails tracked across these 64 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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.