Compliance, Governance & Regulatory Sample only · Reservations open Page created Mar 5, 2026

List of ADA and WCAG Accessibility Audit Firms

List of firms specializing in ADA and WCAG accessibility audits, offering manual and automated testing, remediation guidance, and compliance documentation for websites, mobile apps, and digital products.

Fields we plan to include

Company Name
Headquarters
WCAG Versions Supported
Audit Type
Standards Covered
Industries Served
Team Size
Certifications
Website
Year Founded
Assistive Technology Testing
Global Coverage

Data Preview

* Free sample rows, unverified and may contain errors. The full list isn't available yet.
Company NameHeadquartersStandards CoveredYear Founded
Deque SystemsHerndon, VA, USAWCAG 2.0/2.1/2.2, ADA, Section 5081999
Level AccessArlington, VA, USAWCAG 2.0/2.1/2.2, ADA, Section 508, EN 301 5491997
TPGi (Vispero)Clearwater, FL, USAWCAG 2.0/2.1/2.2, ADA, Section 508, EN 301 5492014
KnowbilityAustin, TX, USAWCAG 2.0/2.1/2.2, ADA, Section 5081998
Bureau of Internet AccessibilityEast Greenwich, RI, USAWCAG 2.0/2.1/2.2, ADA, Section 5082001

Estimated ~520 entries. We'll only compile the full list if enough people reserve it.

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Finding the Right ADA and WCAG Accessibility Audit Partner

With ADA-related digital accessibility lawsuits exceeding 4,000 filings annually in the United States and the European Accessibility Act (EAA) enforcement beginning in June 2025, the demand for qualified accessibility audit firms has never been higher. Choosing the right partner can mean the difference between genuine compliance and a false sense of security.

What a WCAG Accessibility Audit Covers

A thorough audit evaluates digital assets against the Web Content Accessibility Guidelines (WCAG)—currently version 2.2 at AA level being the most widely adopted standard. Audits typically assess four principles:

Perceivable
Content must be presentable in ways all users can perceive—alt text, captions, sufficient color contrast.
Operable
Interface components must be navigable via keyboard, screen readers, and other assistive technologies.
Understandable
Information and UI behavior must be predictable and readable.
Robust
Content must work reliably across current and future assistive technologies.

Manual vs. Automated Testing

Automated tools typically catch 30–40% of WCAG issues. The remaining failures—context-dependent alt text, logical reading order, focus management in dynamic UIs—require expert manual evaluation. Leading firms combine both approaches and include testing by native assistive technology users (screen reader, switch device, and voice control users) to surface real-world usability gaps that neither automated scanners nor sighted testers would detect.

Key Standards and Regulations

StandardJurisdictionScope
ADA Title IIIUnited StatesPublic accommodations, commercial websites
Section 508United StatesFederal agencies and contractors
WCAG 2.2 AAInternationalW3C global web standard
EN 301 549European UnionICT products and services (EAA)
AODAOntario, CanadaPublic and private sector organizations

What to Look for in an Audit Firm

Not all accessibility firms deliver the same depth. Key differentiators include:

  • IAAP-certified auditors (CPAC, CPACC, WAS credentials)
  • W3C working group participation—firms contributing to the standards they audit against
  • Testing with real assistive technology users, not just automated scanners
  • Legally defensible Accessibility Conformance Reports (ACRs) using VPAT format
  • Post-audit remediation support with developer-ready guidance and code examples

Frequently Asked Questions

Q.Where does the data come from?

Full lists would be compiled from public sources such as official registries, industry association rosters and company websites. The sample rows on each page come from web searches and are unverified. Organization info only — no personal contact details.

Q.Is the full list available now?

Not yet. Sample rows are free. We only compile a full list if enough people reserve it. If we do, we'll email everyone who reserved it a purchase link (buying is optional). If we don't, nothing happens and you're never charged.

Q.What does it cost?

Sample rows are free. A full list is $49, paid only if we compile it and you decide to buy. There is no free trial or subscription.

Q.What format is it delivered in?

CSV (opens in Excel or Google Sheets). There is no API.