Company lists · Data refreshed September 2026

Top 25 Accessibility testing companies worldwide

Name: Accessibility testing companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 1,163 companies tracked

RevenueBase identified 1,163 accessibility testing companies worldwide as of September 2026 and tracks 11,765 professional contacts across them, including 3,707 with verified work emails. The United States is the largest market and London the largest hub.

This list covers accessibility testing companies worldwide, 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. Country and city lists for accessibility testing companies follow the table.

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

1,163Companies

11,765Contacts tracked

3,707Verified emails

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The 25 largest accessibility testing companies worldwide

Ranked by team size

Top 25 of 1,163 accessibility testing companies worldwide, 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	Barrierbreak	Partial evidence	Mumbai, IndiaHQ checked Sep 19, 2026	201-500	307 contacts →
	Partial evidence “With 20+ years, BarrierBreak is a global leader in Digital Accessibility & a trusted partner to customers in US, Europe, UK, Australia and India.” Source: RevenueBase Database · checked Sep 19, 2026
5	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
6	Allyant	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	201-500	250 contacts →
	Indirect evidence “Providing equitable access to information can be overwhelming for organizations.” Source: RevenueBase Database · checked Sep 19, 2026
7	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
8	AEL Data Services LLP	Indirect evidence	Toronto, CanadaHQ checked Sep 19, 2026	501-1,000	206 contacts →
	Indirect evidence “With a staggering 1.3 billion individuals living with disabilities worldwide, a number nearly equivalent to the population of India, the imperative to prioritize digital…” Source: RevenueBase Database · checked Sep 19, 2026
9	Unguess	Indirect evidence	Milan, ItalyHQ checked Sep 19, 2026	51-200	195 contacts →
	Indirect evidence “UNGUESS is a cutting-edge crowdsourcing platform that offers quick, effective tests and real insights whenever you need them.” Source: RevenueBase Database · checked Sep 19, 2026
10	Hikeqa	Partial evidence	Noida, IndiaHQ checked Sep 19, 2026	51-200	183 contacts →
	Partial evidence “About HikeQA We are an independent Quality Assurance company who is successfully delivering robust QA and testing solutions for every type of software and mobile applications for…” Source: RevenueBase Database · checked Sep 19, 2026
11	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
12	Q-Factory OY	Indirect evidence	Helsinki, FinlandHQ checked Sep 19, 2026	51-200	150 contacts →
	Indirect evidence “Q-Factory Oy on Suomen suurin riippumaton laadunvarmistukseen ja testaukseen sekä saavutettavuuspalveluihin erikoistunut ICT-alan palveluyritys.” Source: RevenueBase Database · checked Sep 19, 2026
13	Accessiway	Partial evidence	Turin, ItalyHQ checked Sep 19, 2026	51-200	147 contacts →
	Partial evidence “Accessiway is the leading European digital accessibility company, leveraging state-of-the-art technology and our team's collective expertise to make the web navigable for people…” Source: RevenueBase Database · checked Sep 19, 2026
14	Evinced	Partial evidence	Palo Alto, United StatesHQ checked Sep 19, 2026	51-200	121 contacts →
	Partial evidence “Evinced is the rapidly-growing technology leader in digital accessibility software, helping enterprises make their web and mobile offerings accessible to everyone.” Source: RevenueBase Database · checked Sep 19, 2026
15	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
16	Accessible Minds	Strong evidence	Noida, IndiaHQ checked Sep 19, 2026	51-200	99 contacts →
	Strong evidence “Accessible Minds Tech is your reliable QA partner for functional and non-functional accessibility testing for a wide range of industries.” Source: RevenueBase Database · checked Sep 19, 2026
17	Bugfinders	Partial evidence	Cheltenham, United KingdomHQ checked Sep 19, 2026	11-50	91 contacts →
	Partial evidence “BugFinders is a world wide leading crowdsourced software testing company.” Source: RevenueBase Database · checked Sep 19, 2026
18	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
19	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
20	Aiopsgroup A Valantic Company	Indirect evidence	Emea, United StatesHQ checked Sep 19, 2026	51-200	87 contacts →
	Indirect evidence “AIOPSGROUP, a valantic company is a forward-thinking digital powerhouse operating at the nexus of eCommerce, Data, and Technology, with a strong commitment to digital…” Source: RevenueBase Database · checked Sep 19, 2026
21	Ciao Technologies	Indirect evidence	Québec, QC, CanadaHQ checked Sep 19, 2026	51-200	83 contacts →
	Indirect evidence “The name says it all.” Source: RevenueBase Database · checked Sep 19, 2026
22	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
23	Recite ME	Partial evidence	Gateshead, United KingdomHQ checked Sep 19, 2026	51-200	81 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
24	Accessable	Partial evidence	Stevenage, United KingdomHQ checked Sep 19, 2026	51-200	77 contacts →
	Partial evidence “AccessAble is the UK's largest provider of accessibility information.” Source: RevenueBase Database · checked Sep 19, 2026
25	Deviqa	Partial evidence	Warsaw, PolandHQ checked Sep 19, 2026	201-500	77 contacts →
	Partial evidence “DeviQA has been supporting customer success stories for over 14 years, protecting and safeguarding our customers' brand and hard-fought reputation through best-in-class testing…” 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 1,163 accessibility testing companies worldwide

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Accessibility testing companies worldwide at a glance

As of Sep 19, 2026

31.5%Verified-email coverage

10.1Average contacts per company

1-10Median size (employees)

2.0%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

781

11-50

273

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for accessibility testing companies are linked below.
What qualifies: Companies worldwide 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.
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, 3,707 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.

Accessibility testing companies by location

7 lists · largest first

Every Accessibility testing companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 worldwide?

RevenueBase identified 1,163 accessibility testing companies worldwide 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 country has the most accessibility testing companies?

The United States leads with 277 companies, followed by India (111) and the United Kingdom (69). Every accessibility testing companies list by country and city is linked on this page.

Which city has the most accessibility testing companies?

London leads with 23 headquartered companies, followed by Toronto (18) and New Delhi (13).

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 3,707 verified decision-maker contacts tracked across these 1,163 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.