Hello, we’re TetraLogical

We're a company with inclusion at its heart. We specialise in all aspects of accessibility, from working with your websites and apps to giving your teams the skills they need to make accessibility part of everything they do.

We take the time to understand your organisation, your project, and your goals, so we can put together services that are tailored to suit you. Our accessibility services include:

TetraLogical is a member of the W3C where we contribute to standards including HTML, CSS, ARIA, and WCAG.

Our User Experience Network is a group of people who use assistive technologies, alternative input devices, and other accesssibility services. They provide valuable feedback about their experiences using products and services as part of our agile usability testing and usability testing services.


  1. Announcing our self-led accessibility training promotion
  2. Léonie Watson on RNIB Tech Talk podcast

More news items


  1. Inclusive XR: accessible augmented reality experiences
  2. Foundations: pointer gestures

More blog posts

Contact us

We like to listen. If you have a project, product, problem, or idea that you want to discuss, get in touch!