Our Team

Malcolm Sleath is the inventor and developer of the 12boxes system.

He has been working with consultants, advisers and technology specialists for over forty years.

After working in retailing and then recruitment, he became an independent consultant, devising and delivering programmes to build teams and empower executives and supervisors to manage 360° relationships.

Following work helping IT specialists to improve their relationships with internal clients, he then specialised in developing the client handling skills of scientists, engineers and management consultants. His many years’ experience of doing this led to the development of the 12boxes structured approach.

An EU and UK citizen, he lives in London.

Takuya Shimada is a director of 12boxes Limited with special responsibility for client success.

Takuya’s multifaceted career included a stint in the performing arts before going on to develop and produce industry-leading business conferences. Business sectors included automotive, wireless communications, renewable energy, and pharmaceuticals.

As a consultant, he has created strategic relationships between leading enterprises in the USA, Europe and Japan.

Takuya has a passion for mathematics and the arts. He holds a BA in Economics from Sophia University, Tokyo, and a master’s degree of Arts in Dance from the Trinity Laban Conservatoire of Music and Dance, London.