About TetraLogical

We’re a boutique company, with lots of experience and a whole new attitude.

We formed TetraLogical in 2019 because we saw the market become more driven by legal compliance than meeting the needs of different people. Compliance is important but it doesn’t guarantee inclusion, so we bridge the gap between the two in intelligent ways tailored just for you.

We like new ideas and finding pragmatic solutions to complex problems. We know that inclusion takes many forms, so our services encompass knowledge, experience, strategy, assessments, and development.

Our principles

We put people first: you and your customers, our partners and employees, and everyone we meet. TetraLogical is founded on four principles that mean everything we do is:

  • Inclusive: we consider everyone and make decisions that exclude no-one
  • Sustainable: we work collaboratively and efficiently to amplify enduring accessibility
  • Ethical: we make decisions for the good of our clients and their customers, our people, and for the world at large
  • Original: we like new ideas and finding simple solutions to complex problems

Our people

Every member of our team has more than 10 years’ experience in the technology industry; we’ve all been involved in accessibility since its earliest days on the web.

Léonie Watson

Léonie is a Director at TetraLogical, member of the W3C Advisory Board, co-Chair of the W3C Web Applications and HTML working groups, and member of the BIMA Inclusive Design Council.

With more than 25 years’ experience working for organisations including Nomensa, The Paciello Group, and Government Digital Service, Léonie is a respected member of the web community. Naturally hard-working and organised, she has spent time managing complex web projects, as well as working in her habitual capacity as accessibility engineer. In 2018, Microsoft recognised her contribution to the field of accessibility by making her one of the first Most Valued Professionals (MVP) outside of the Microsoft community.


Ian Pouncey

Ian is a Director at TetraLogical, a member of a number of W3C working groups, and a web developer with more than 20 year’s experience.

Ian worked as a web developer for companies including Yahoo!, Bloomberg, and the BBC before becoming a full-time accessibility specialist in 2013. He worked as a Senior Accessibility Specialist as part of the BBC’s digital UX division and later joined The Paciello Group as a Senior Accessibility Specialist and User Experience Development Lead.


Henny Swan

Henny is a Director at TetraLogical and a user experience and digital accessibility specialist with almost 20 years’ experience.

Formerly at the BBC, The Paciello Group, Opera Software and RNIB Henny is in her element working with multi-disciplinary teams to help infuse inclusion in each step in the Software Development Lifecycle. This could be by working on a product from its conception all the way through to completion factoring user research with disabled users, early concept, documentation and design reviews, as well as agile usability testing as the product goes to development. By doing this Henny empowers teams to integrate inclusion into their own process so they can confidently and consistently deliver accessible and inclusive products.


Graeme Coleman

Graeme is a Principal Accessibility Specialist at TetraLogical. He has an in depth understanding of technical accessibility and how to apply the guidelines across web and mobile platforms such as iOS and Android.

Previously, Graeme was a senior accessibility engineer at The Paciello Group and, prior to that, a researcher at the University of Dundee, where he was awarded his PhD in 2008. Graeme has over 15 years of experience performing accessibility assessments of websites and applications on behalf of commercial and academic organisations.


Patrick H. Lauke

Patrick is a Principal Accessibility Specialist at TetraLogical. In a previous life he was Principal Accessibility Engineer at The Paciello Group, and before that worked as Web Evangelist in the Developer Relations team at Opera Software.

He’s been involved in the discourse around Web Standards and Accessibility since 2001, actively speaking at conferences and participating in early initiatives such as the Web Standards Project (WaSP). He is an occasional contributor to the Web Content Accessibility Guidelines, co-editor of the W3C Pointer Events Level 2 specification and co-editor of the W3C Touch Events Level 2 specification.

Patrick H. Lauke

Ela Gorla

Ela is a Principal Accessibility Specialist at TetraLogical. She has 12 years’ experience in the digital accessibility field and specialises in user experience and user research, in particular with people with disabilities.

Formerly at Barclays, Systems Concepts, Vision Australia and U1 Group, Ela has a strong background in strategy and accessibility program management both in-house and on the consultancy side. Ela is experienced in delivering training in both design and development both remotely and in person. She has contributed to the W3C Authoring Tool Accessibility Guidelines as a tester and has participated in the Scope Big Hack advisory board.


Felicity Miners-Jones

Felicity is a Project Manager at TetraLogical. She has over nine years’ experience in management consultancy, working for companies such as Breakthrough Global running projects and productions with a heavy focus on web-based training for clients dispersed across the globe.

Felicity is a communication and behavioural learning specialist, comfortable working in a range of settings to provide intensive communication skills training, one to one coaching, seminar facilitation, and specialist mental health training. She has a creative background and previously founded and ran her own theatre company where she created and delivered a wide range of productions, workshops, and fundraising events. She also has experience working in the care sector, including domiciliary and hospice support.

Felicity Miners-Jones

Joe Lamyman

Joe is an Accessibility Specialist at TetraLogical. He has worked across different sectors to create usable and accessible digital experiences.

Previously, Joe worked within Defra’s accessibility team to help public sector bodies deliver services that are as accessible to as many people as possible. He also has experience developing accessible design systems and patterns as part of an MSc by Research degree and from working with universities in the UK and Australia, during his time with SkillsForge.

Joe Lamyman

Chad Gowler

Chad is an accessibility specialist at TetraLogical. They have over a decade of experience in the tech inustry across various roles.

They started their career as a developer before switching careers to user researcher and then accessibility consultant in the public sector. In their previous role, they assisted many digital teams to comply with regulations that help make the public sector accessible for everyone. They also have expertise in inclusion particularly for neurodivergent and LGBTQ+ people.


Our community

We dedicate some of our time to supporting knowledge share in the technology community. This includes contributing to community projects, conferences, and mentoring schemes.

World Wide Web Consortium

We’re members of the W3C, where we contribute to standards like the Web Content Accessibility Guidelines (WCAG) and Accessible Rich Internet Applications (ARIA), so we put a rare level of technical knowledge at your disposal.

Inclusive Design 24

Inclusive Design 24 (#id24) is a free 24-hour online event for the global community. It celebrates inclusive design and shares knowledge and ideas from analogue to digital, from design to development, from planners to practitioners, and everything and everyone in between.

Inclusive Design Principles

The Inclusive Design Principles are designed to give anyone involved in the design and development of websites and applications - designers, user experience professionals, developers, product owners, idea makers, innovators, artists and thinkers - a broad approach to inclusive design.

Bristol Inclusive Design and Development

Bristol Inclusive Design and Development is a meetup for anyone involved in design and development, who is interested in accessibility and inclusive design best practices.

Contact us

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