Company lists · Data refreshed September 2026

Top 25 Web accessibility software based in the United States

RevenueBase identified 157 company matches for web accessibility software associated with the United States as of September 2026 and tracks 2,424 professional contacts across them, including 1,190 with verified work emails. New York is the largest hub.

This list covers company matches for web accessibility software 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 September 14, 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 Sep 14, 2026 How this list was built
157Companies
2,424Contacts tracked
1,190Verified emails
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The 25 largest web accessibility software based in the United States

Ranked by team size
Top 25 of 157 company matches for web accessibility software based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 14, 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 matchStafford, VA, United StatesHQ recorded Sep 14, 2026501-1,000560 contacts →

Exact match

“Level Access is the market-leading digital accessibility platform and service provider, helping organizations create high-performing, inclusive, and legally compliant websites…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
2Exact matchHerndon, VA, United StatesHQ recorded Sep 14, 2026201-500253 contacts →

Exact match

“Deque (pronounced dee-cue) is a web accessibility software and services company, and our mission is Digital Equality.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
3Exact matchNew York, United StatesHQ recorded Sep 14, 202651-200222 contacts →

Exact match

“accessiBe is the market leader in web accessibility, trusted by over websites worldwide.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
4Exact matchTucson, AZ, United StatesHQ recorded Sep 14, 202651-200171 contacts →

Exact match

“We believe there are too many barriers for people with disabilities.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
5Exact matchNew York, NY, United StatesHQ recorded Sep 14, 202651-200105 contacts →

Exact match

“UsableNet is a leader in digital accessibility.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
6Exact matchClearwater, FL, United StatesHQ recorded Sep 14, 202651-20090 contacts →

Exact match

“TPG Interactive (TPGi) is a world-class accessibility consultancy with a reputation for excellence.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
7Exact matchWilmington, DE, United StatesHQ recorded Sep 14, 202651-20071 contacts →

Exact match

“UserWay is the leading digital accessibility platform for companies and organizations of all sizes.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
8Exact matchAustin, TX, United StatesHQ recorded Sep 14, 202651-20067 contacts →

Exact match

“Silktide makes software to understand and improve websites, covering accessibility, SEO, UX, data privacy, and more.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
9Exact matchCoppell, TX, United StatesHQ recorded Sep 14, 202651-20066 contacts →

Exact match

“At the forefront of technological innovation, Wenable Inc.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
10Exact matchAtlanta, GA, United StatesHQ recorded Sep 14, 202611-5054 contacts →

Exact match

“Evenness is building a health-personalized, adaptive, and compliant web that adapts to you.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
11Exact matchPhiladelphia, PA, United StatesHQ recorded Sep 14, 202611-5051 contacts →

Exact match

“Access to information is a human right.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
12Exact matchAustin, TX, United StatesHQ recorded Sep 14, 2026n/a40 contacts →

Exact match

“Knowbility's mission is to create an inclusive digital world for people with disabilities.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
13Exact matchNew York, AZ, United StatesHQ recorded Sep 14, 202611-5039 contacts →

Exact match

“Full-service digital accessibility for government agencies, done right, on time, and within budget.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
14Exact matchChatsworth, CA, United StatesHQ recorded Sep 14, 202611-5030 contacts →

Exact match

“At EcomBack, we are committed to creating inclusive and accessible digital experiences and provide equal access for everyone.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
15Exact matchDurham, NC, United StatesHQ recorded Sep 14, 202611-5030 contacts →

Exact match

“Ablr is a Digital Accessibility and Inclusion company that was founded on the key principle that all digital content, including websites, videos, applications, are accessible for…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
16Exact matchMiami, FL, United StatesHQ recorded Sep 14, 202611-5029 contacts →

Exact match

“Every inaccessible button, missing label, or broken screen reader flow is a lost customer.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
17Exact matchWashington, DC, United StatesHQ recorded Sep 14, 202611-5021 contacts →

Exact match

“User1st offers the most advanced web accessibility solutions for organizations to reach more users and achieve the highest level of compliance and usability by the Web…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
18Exact matchNewark, DE, United StatesHQ recorded Sep 14, 202611-5019 contacts →

Exact match

“AccessibilityChecker.org is the #1 web accessibility platform, and a full-service accessibility partner.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
19Exact matchReston, VA, United StatesHQ recorded Sep 14, 202611-5018 contacts →

Exact match

“Recite Me offers a range of on-demand accessibility solutions that support you in conforming to WCAG standards and ensure that your website is user-friendly for individuals with…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
20Exact matchStillwater, MN, United StatesHQ recorded Sep 14, 202611-5018 contacts →

Exact match

“Who We Are: WeCo is a mission-based company that believes that usability is part of accessibility.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
21Exact matchBurlington, VT, United StatesHQ recorded Sep 14, 202611-5016 contacts →

Exact match

“Accessible Web is an organization of web accessibility experts with its headquarters in Burlington, VT.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
22Exact matchDecatur, GA, United StatesHQ recorded Sep 14, 202611-5013 contacts →

Exact match

“DubBot is web governance software that works as hard as you do!”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
23Exact matchSanta Rosa, CA, United StatesHQ recorded Sep 14, 202611-5011 contacts →

Exact match

“Access Ingenuity was founded in January 2002.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
24Exact matchBerkeley, CA, United StatesHQ recorded Sep 14, 20261-1011 contacts →

Exact match

“The Center for Accessible Technology (C4AT) bridges access gaps to technology for people with disabilities.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
25Exact matchNorristown, PA, United StatesHQ recorded Sep 14, 202611-5010 contacts →

Exact match

“A TRUE All in One accessibility management platform: includes the ability to easily record manual findings, has an advanced remediation process and tracking that simplifies tasks…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase

Showing 25 of 157 web accessibility software based in the United States

See the full list, filter by size, metro and specialty, and access 1,190 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Web accessibility software based in the United States at a glance

As of Sep 14, 2026
49.1%Verified-email coverage
15.4Average contacts per company
1-10Median size (employees)
5.7%Largest-city concentration · New York
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
95
11-50
48
51-200
11
201-500
1
501-1,000
1
1,001-5,000
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 157 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 “web accessibility software” 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 1,190 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 September 14, 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 “web accessibility software”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many web accessibility software are there based in the United States?

RevenueBase identified 157 company matches for web accessibility software associated with the United States as of September 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?

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

Which city has the most web accessibility software?

New York leads with 9 company records, followed by Austin (4) and Los Angeles (4).

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 1,190 professional contacts with verified work emails tracked across these 157 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 September 14, 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.