TDI specialises in designing and delivering programmes that will improve the experience for your customers, guests, visitors, learners and staff TDI International has been successful in securing a contract to deliver a series of Innovation Seminars in Lithuania on behalf of ETKC.. TDI is on the supplier matching list of Business Link Wessex who provide regular advice Terry of TDI delivered 3 six hour seminars at Vilnius Gediminas Technical, Lithuania and returned to UK today.. More TDI Innovation Masterclass Seminars were delivered in Universities in Lithuania this week..