We will give you and your teams the knowledge and confidence to create accessible and inclusive products.


When you need a team of experienced accessibility specialists, but it isn’t the right time to be hiring, our helpdesk is a fast and efficient way to extend your accessibility capability.

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


Whether you want an introduction to the fundamentals of accessibility and inclusive design, a "deep-dive" into accessibility for specific roles (like interface design, content design, or development), or something created uniquely for you, our training will give you the skills and knowledge you need.

Our training is delivered by highly experienced specialists and can be given on-site (anywhere in the world), online, or as reusable video.

Expert witness

When you need an experienced accessibility specialist to support your legal team, our expert witnesses give you the technical insight you need.

Our expert witnesses will help you understand the technical information presented during legal cases and settlement negotiations, enable you to confidently respond to the opposing legal team, and confidently represent the position of your client.

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