We'll assess your website using international accessibility standards, then give you the knowledge and capability to meet your accessibility goals.

Accessibility assessment

Whether you have a design system, component or pattern library, a Progressive Web App (PWA), website, mobile app, video game, Virtual/Augmented Reality (XR) environment, or a voice assistant skill/app, our accessibility assessment will tell you what you need to know.

We assess to the most appropriate international accessibility standards, including the Web Content Accessibility Guidelines (WCAG) 2.1, Section 508 of the Rehabilitation Act, EN 301/549 (Mandate 376), and the Game Accessibility Guidelines (GAG).

We know there is more to accessibility than code and compliance, so our rigorous methodology uses a blend of analytical tools, manual testing, and usability verification with Assistive Technologies (AT), to give you the best possible results.


We don't believe in doing an accessibility assessment, then leaving you to figure it out from there, so we include helpdesk time as standard with every assessment. In other words, we're with you every step of the way.

Our helpdesk gives you convenient on-demand access to the TetraLogical team. You can ask us questions about accessibility issues identified during the assessment, for help with recommended solutions and best practices, for quick design and code reviews, or just for a little extra reassurance as your team makes your product more inclusive.

Accessibility verification

We'll verify that the original issues from your assessment have been fixed, that the solutions have been implemented throughout your product, and that no new accessibility issues have been introduced along the way.

Other Services

Contact us

We like to listen. If you have a project, product, problem, or idea that you want to discuss we can be found at hello@tetralogical.com