TetraLogical
London, United Kingdom
TetraLogical is a London-based boutique accessibility consultancy that helps organisations make websites, apps, and other technologies usable by people with disabilities. Its services span experience-focused testing and assessment for people using technology, knowledge-building for design and engineering teams, and strategic support for teams managing accessibility programmes. The company also publishes an "Accessibility Unlocked" newsletter and a blog covering topics such as WCAG, native app accessibility, and reading disabilities.
Services
Standards
Pending verification.
Details
- In business since
- 2019
- Working languages
- en
- Serves
- United Kingdom
- Last verified
- 2026-08-04
Listing sources
- UK inclusive-design and accessibility consultancy founded 2019 by Leonie Watson (W3C board); traditional accessibility consultancy per company description, live SERP 2026-08-04
- homepage — services, team, address in footer (60 Windsor Avenue, London)
- "We formed TetraLogical in 2019 because we saw the market become more driven by legal compliance than meeting the needs of different people."; checked 2026-08-07
Every listing on this site cites where its facts come from. Spotted an error? Claim this profile to correct it.
Badge for your website
If you run this agency, you can show this badge after verification. Optional — verification by email works the same. How verification works.
Similar agencies in United Kingdom
AbilityNet
Leamington Spa, United KingdomAbilityNet is a UK charity established in 1998, with its registered office in Leamington Spa. It provides digital accessibility services including accessibility audits against WCAG 2.2, VPAT/ACR preparation, user testing, training and eLearning, user research and strategic advice, alongside free technology support for older and disabled people. It publishes audit pricing on its site, with a component-based audit at £4,950 +VAT for up to 10 key pages.
✓ Checked against 6 sources · last verified 2026-08-04
Passion4Social
Livingston, United KingdomPassion4Social is a community interest company (Passion 4 Social CIC) registered in Livingston, Scotland, and trading since 2018. It offers accessibility audits, consultancy and training; its audits combine automated scans with manual testing by disabled testers, and it says 80% of its staff have lived experience of disability. Alongside its audits it also sells an optional automated accessibility overlay widget.
✓ Checked against 6 sources · last verified 2026-10-09
Recite Me
Gateshead, United KingdomRecite Me is a UK-based (Gateshead) accessibility company, incorporated in 2009, providing an assistive toolbar plus manual accessibility auditing, PDF remediation and free accessibility training aligned to WCAG 2.2. It announced membership of IAAP (International Association of Accessibility Professionals).
✓ Checked against 2 sources · last verified 2026-08-13
Zoonou
Eastbourne, United KingdomZoonou is an employee-owned, B Corp certified software testing and QA company based in Eastbourne, with a team of more than 50 people. Its digital accessibility services include WCAG compliance audits, disabled user testing, accessibility training, document remediation and accessibility strategy, and it supports compliance with UK regulations and the European Accessibility Act. Clients span public sector, healthcare, technology and SaaS, higher education, retail and ecommerce.
✓ Checked against 4 sources · last verified 2026-08-04
2i Testing
Edinburgh, United KingdomEdinburgh-headquartered software testing company with a dedicated accessibility testing practice validating digital products against WCAG 2.2 AA through combined manual and automated methods.
✓ Checked against 1 source · last verified 2026-08-13