Company lists · Data refreshed September 2026

Top 25 Accessibility testing companies based in the United States

Name: Accessibility testing 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 19, 2026 277 companies tracked

RevenueBase identified 277 accessibility testing companies headquartered in the United States as of September 2026 and tracks 4,455 professional contacts across them, including 1,576 with verified work emails. New York is the largest hub.

This list covers accessibility testing 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 19, 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 19, 2026 86% judged on-target in blind review

277Companies

4,455Contacts tracked

1,576Verified emails

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The 25 largest accessibility testing companies based in the United States

Ranked by team size

Top 25 of 277 accessibility testing companies based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to accessibility testing 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	A1qa	Partial evidence	Decatur, GA, United StatesHQ checked Sep 19, 2026	1,001-5,000	980 contacts →
	Partial evidence “a1qa is a global software testing and QA outsourcing company trusted by IT firms and Fortune 500 enterprises to deliver software quality that holds under real-world pressure.” Source: RevenueBase Database · checked Sep 19, 2026
2	Level Access	Partial evidence	Stafford, VA, United StatesHQ checked Sep 19, 2026	501-1,000	560 contacts →
	Partial evidence “Level Access is the market-leading digital accessibility platform and service provider, helping organizations create high-performing, inclusive, and legally compliant websites…” Source: RevenueBase Database · checked Sep 19, 2026
3	Astegic	Partial evidence	Falls Church, VA, United StatesHQ checked Sep 19, 2026	51-200	415 contacts →
	Partial evidence “For 15 years, Astegic has been helping Fortune 500 through startup companies with their Testing & QA needs.” Source: RevenueBase Database · checked Sep 19, 2026
4	Deque Systems, INC	Partial evidence	Herndon, VA, United StatesHQ checked Sep 19, 2026	201-500	253 contacts →
	Partial evidence “Deque (pronounced dee-cue) is a web accessibility software and services company, and our mission is Digital Equality.” Source: RevenueBase Database · checked Sep 19, 2026
5	Accessibe	Partial evidence	New York, United StatesHQ checked Sep 19, 2026	51-200	222 contacts →
	Partial evidence “accessiBe is the market leader in web accessibility, trusted by over websites worldwide.” Source: RevenueBase Database · checked Sep 19, 2026
6	Audioeye	Indirect evidence	Tucson, AZ, United StatesHQ checked Sep 19, 2026	51-200	171 contacts →
	Indirect evidence “We believe there are too many barriers for people with disabilities.” Source: RevenueBase Database · checked Sep 19, 2026
7	Usablenet	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	51-200	105 contacts →
	Partial evidence “UsableNet is a leader in digital accessibility.” Source: RevenueBase Database · checked Sep 19, 2026
8	Tpgi, A Vispero Company	Partial evidence	Clearwater, FL, United StatesHQ checked Sep 19, 2026	51-200	90 contacts →
	Partial evidence “TPG Interactive (TPGi) is a world-class accessibility consultancy with a reputation for excellence.” Source: RevenueBase Database · checked Sep 19, 2026
9	Ibeta Quality Assurance	Indirect evidence	Aurora, CO, United StatesHQ checked Sep 19, 2026	51-200	90 contacts →
	Indirect evidence “Founded in and located in metro Denver, Colorado, iBeta Quality Assurance specializes in “QA on Demand” for software: functionality, compatibility, security, load/performance…” Source: RevenueBase Database · checked Sep 19, 2026
10	Plus QA	Partial evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	51-200	82 contacts →
	Partial evidence “PLUS QA makes software testing simple.” Source: RevenueBase Database · checked Sep 19, 2026
11	Shasta QA	Partial evidence	Redding, CA, United StatesHQ checked Sep 19, 2026	51-200	74 contacts →
	Partial evidence “Shasta QA is an American OurSourcing software-testing company with offices located in Northern California and the Midwest.” Source: RevenueBase Database · checked Sep 19, 2026
12	userway.org	Partial evidence	Wilmington, DE, United StatesHQ checked Sep 19, 2026	51-200	71 contacts →
	Partial evidence “UserWay is the leading digital accessibility platform for companies and organizations of all sizes.” Source: RevenueBase Database · checked Sep 19, 2026
13	Tamman, INC	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 19, 2026	11-50	51 contacts →
	Indirect evidence “Access to information is a human right.” Source: RevenueBase Database · checked Sep 19, 2026
14	Accessability Officer	Partial evidence	New York, AZ, United StatesHQ checked Sep 19, 2026	11-50	39 contacts →
	Partial evidence “Full-service digital accessibility for government agencies, done right, on time, and within budget.” Source: RevenueBase Database · checked Sep 19, 2026
15	Ecomback	Indirect evidence	Chatsworth, CA, United StatesHQ checked Sep 19, 2026	11-50	30 contacts →
	Indirect evidence “At EcomBack, we are committed to creating inclusive and accessible digital experiences and provide equal access for everyone.” Source: RevenueBase Database · checked Sep 19, 2026
16	Ablr 360	Partial evidence	Durham, NC, United StatesHQ checked Sep 19, 2026	11-50	30 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
17	A11ysolutions	Indirect evidence	Miami, FL, United StatesHQ checked Sep 19, 2026	11-50	29 contacts →
	Indirect evidence “Every inaccessible button, missing label, or broken screen reader flow is a lost customer.” Source: RevenueBase Database · checked Sep 19, 2026
18	User1st A11y Made Simple	Partial evidence	Washington, DC, United StatesHQ checked Sep 19, 2026	11-50	21 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
19	Skynet Technologies USA LLC	Indirect evidence	Independence, KY, United StatesHQ checked Sep 19, 2026	11-50	19 contacts →
	Indirect evidence “Skynet Technologies USA LLC is full service WCAG 2.1, 2.2 website remediation agency offering audit, design, development, remediation, consulting, self-assistance training, VPAT…” Source: RevenueBase Database · checked Sep 19, 2026
20	ACE By Accessibilitychecker.Org	Partial evidence	Newark, DE, United StatesHQ checked Sep 19, 2026	11-50	19 contacts →
	Partial evidence “AccessibilityChecker.org is the #1 web accessibility platform, and a full-service accessibility partner.” Source: RevenueBase Database · checked Sep 19, 2026
21	Recite ME US	Partial evidence	Reston, VA, United StatesHQ checked Sep 19, 2026	11-50	18 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
22	Digital Accessibility By Weco	Partial evidence	Stillwater, MN, United StatesHQ checked Sep 19, 2026	11-50	18 contacts →
	Partial evidence “Who We Are: WeCo is a mission-based company that believes that usability is part of accessibility.” Source: RevenueBase Database · checked Sep 19, 2026
23	Letter B Global Technologies	Indirect evidence	Coralville, United StatesHQ checked Sep 19, 2026	11-50	18 contacts →
	Indirect evidence “Letter B is not just your ordinary information technology company.” Source: RevenueBase Database · checked Sep 19, 2026
24	Ralytics	Partial evidence	Boca Raton, FL, United StatesHQ checked Sep 19, 2026	11-50	17 contacts →
	Partial evidence “We are a service-disabled veteran-owned small business (SDVOSB) that thrives on growing accessibility into your strategic advantage.” Source: RevenueBase Database · checked Sep 19, 2026
25	Accessible WEB	Partial evidence	Burlington, VT, United StatesHQ checked Sep 19, 2026	11-50	16 contacts →
	Partial evidence “Accessible Web is an organization of web accessibility experts with its headquarters in Burlington, VT.” Source: RevenueBase Database · checked Sep 19, 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: accessibility testing 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 accessibility testing companies.
Partial evidence: Its own public description names part of accessibility testing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name accessibility testing 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 277 accessibility testing companies based in the United States

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Accessibility testing companies based in the United States at a glance

As of Sep 19, 2026

35.4%Verified-email coverage

16.1Average contacts per company

1-10Median size (employees)

4.3%Largest-city concentration · New York

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

178

11-50

51-200

201-500

501-1,000

1,001-5,000

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 277 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 accessibility testing 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 “accessibility testing 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 accessibility testing 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 accessibility testing 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, 1,576 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 19, 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 accessibility testing 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 accessibility testing companies are there based in the United States?

RevenueBase identified 277 accessibility testing 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?

A1qa, headquartered in Decatur, tops this list with the largest team on record.

Which city has the most accessibility testing companies?

New York leads with 12 headquartered companies, followed by Los Angeles (7) and Washington (7).

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 1,576 verified decision-maker contacts tracked across these 277 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 19, 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.