Company lists · Data refreshed August 2026
Top 25 Assessment software developers based in the United States
There are 157 assessment software developers headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 7,838 professional contacts across them, including 2,710 with verified work emails and 2,964 with mobile numbers. San Francisco is the largest hub.
This list covers assessment software developers 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, how directly it supports the match, and when it was last checked. Data refreshed August 31, 2026.
The 25 largest assessment software developers based in the United States
Ranked by team size| # | Company | Verified emails |
|---|---|---|
| 1 | “Prometric is a global leader in credentialing and skills development.” Source: company website · checked Aug 31, 2026Thanks. The Data Team will review it. | 552 |
| 2 | “Ascend Learning is a leading healthcare and learning technology company.” Source: company website · checked Aug 31, 2026Thanks. The Data Team will review it. | 969 |
| 3 | “As the leading experts in K-12 education assessment, Cambium Assessment delivers innovative, reliable, and actionable technologies.” Source: company website · checked Aug 31, 2026Thanks. The Data Team will review it. | 392 |
| 4 | “Meazure Learning provides secure, reliable, and convenient test development, administration, and delivery solutions for academic and professional credentialing programs.” Source: company website · checked Aug 31, 2026Thanks. The Data Team will review it. | 181 |
| 5 | “Legacy strong, future focused.Scantron delivers technology-enabled assessment, analytics, and data services that empower organizations across education, business, and government…” Source: company website · checked Aug 31, 2026Thanks. The Data Team will review it. | 30 |
| 6 | “At Kryterion, we know a thing or two about test delivery.” Source: company website · checked Aug 31, 2026Thanks. The Data Team will review it. | 62 |
| 7 | Source: company website · checked Aug 31, 2026Thanks. The Data Team will review it. | 42 |
| 8 | “Surpass is a global leader in digital assessment services, providing credentialing organizations worldwide with an extensive test center network, high-quality online proctoring…” Source: company website · checked Aug 31, 2026Thanks. The Data Team will review it. | 85 |
| 9 | “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: company website · checked Aug 31, 2026Thanks. The Data Team will review it. | 11 |
| 10 | “eSkill is a pre-hire assessment solution designed to help organizations enhance their hiring processes by providing customizable assessments tailored to specific roles and skills.” Source: company website · checked Aug 31, 2026Thanks. The Data Team will review it. | 29 |
| 11 | “As an educational development, testing, and consulting company, it is MetriTech's mission to support education stakeholders in the development of human potential.” Source: company website · checked Aug 31, 2026Thanks. The Data Team will review it. | 5 |
| 12 | “CASAS is a nonprofit organization that provides assessments of basic skills for youth and adults and curricular tools to target instruction.” Source: company website · checked Aug 31, 2026Thanks. The Data Team will review it. | 21 |
| 13 | “eMetric is a leading pure-play technology provider dedicated to advancing the assessment industry.” Source: company website · checked Aug 31, 2026Thanks. The Data Team will review it. | 46 |
| 14 | “Based on more than a decade of experience, Tk20, Inc.” Source: company website · checked Aug 31, 2026Thanks. The Data Team will review it. | 9 |
| 15 | “Our company offers 50+ years of expertise in skills- and merit-based testing solutions for human resources- TestGenius Skills Testing Software (SaaS)- Office Skills Testing…” Source: company website · checked Aug 31, 2026Thanks. The Data Team will review it. | 30 |
| 16 | “Join students and professionals worldwide who report passing their certification after using GMetrix.” Source: company website · checked Aug 31, 2026Thanks. The Data Team will review it. | 25 |
| 17 | “NOCTI provides curricular and instructional improvement tools for secondary and post-secondary institutions.” Source: company website · checked Aug 31, 2026Thanks. The Data Team will review it. | 17 |
| 18 | “Cut Your Interview Time In Half AND Still Make A Great Hire!” Source: company website · checked Aug 31, 2026Thanks. The Data Team will review it. | 6 |
| 19 | “We are here to improve assessment throughout the world.” Source: company website · checked Aug 31, 2026Thanks. The Data Team will review it. | 19 |
| 20 | “Strasz Assessment Systems creates custom assessment software and provides assessment system-related consulting services.” Source: company website · checked Aug 31, 2026Thanks. The Data Team will review it. | 21 |
| 21 | “For the past 20 years Respondus has been reshaping how students are assessed.” Source: company website · checked Aug 31, 2026Thanks. The Data Team will review it. | 20 |
| 22 | “Prodigy Learning is an award-winning global EdTech business, providing innovative online platforms that empower learners to develop and prove their skills.” Source: company website · checked Aug 31, 2026Thanks. The Data Team will review it. | 10 |
| 23 | Educational VistasIndirect evidence “Educational Vistas Inc.(EVI), a distinguished K-12+ education corporation, is a NYSED Lead Scoring Entity and Woman-owned Business.” Source: company website · checked Aug 31, 2026Thanks. The Data Team will review it. | 12 |
| 24 | “Founded in 2002 by educators, GradeCam is a technology company focused on creating effective, efficient, and economical solutions for addressing the evolving needs in education…” Source: company website · checked Aug 31, 2026Thanks. The Data Team will review it. | 9 |
| 25 | “Prolydian helps test publishers and administrators use technology to improve the testing experience from design to delivery."Why Prolydian?" you may ask.” Source: company website · checked Aug 31, 2026Thanks. The Data Team will review it. | 9 |
Showing 25 of 157 assessment software developers based in the United States
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Assessment software developers based in the United States at a glance
As of Aug 31, 2026Companies by employee count
Assessment software developers by metro
| Metro | Companies |
|---|---|
| Assessment software developers in San Francisco | 6 |
| Assessment software developers in San Diego | 4 |
| Assessment software developers in Cleveland | 3 |
| Assessment software developers in Wilmington | 3 |
| Assessment software developers in Princeton | 3 |
| Assessment software developers in New York | 3 |
| Assessment software developers in Los Angeles | 3 |
| Assessment software developers in San Antonio | 3 |
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 assessment software developers, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “assessment software developers”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among assessment software developers, 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 an evidence rating so you can judge each match yourself.
- 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, 2,710 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 August 31, 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
How many assessment software developers are there based in the United States?
There are 157 assessment software developers headquartered in the United States as of August 2026 (RevenueBase).
What is the largest company on this list?
Prometric, headquartered in White Marsh, tops this list with the largest team on record.
Which city has the most assessment software developers?
San Francisco leads with 6 headquartered companies, followed by San Diego (4) and Cleveland (3).
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 2,710 verified decision-maker contacts tracked across these 157 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 2026.
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About this data
RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.
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