Martyn Thomas

In December 1992, Praxis was sold to Deloitte and Touche, an international firm of accountants and management consultants, and Martyn became a Deloitte Consulting international partner whilst remaining chairman and, later, managing director of Praxis. He left Deloitte Consulting in 1997.

Martyn Thomas founded the software engineering company Praxis in 1983, based in Bath, southern England. He has a special interest in safety-critical systems and other high integrity applications. He has acted as an expert witness involving complex software engineering issues.

In 1983, Thomas founded Praxis with David Bean, where he encouraged the use of formal methods within the company for software development. In 1986, Praxis became the first independent systems house to achieve BS 5750 (later ISO 9001) certification for all its activities. Praxis became internationally recognised as a leader in the use of rigorous software engineering, including formal methods, and grew to around 200 staff.

Thomas was born in Salisbury, southern England. He studied biochemistry at University College London, graduating in 1969, when he started working in the field of computing. Between 1969 and 1983, he was employed at universities in London and the Netherlands, at STC working on telecommunications software, and at the South West Universities Regional Computer Centre in Bath.

Martyn Thomas CBE FREng FIET FRSA (born 1948) is a British independent consultant and software engineer.