Unitest was founded in 1990 as a private-owned enterprise and 27 years later the company converted to Unitest Marine Simulators Ltd. The company staff includes prominent experts from Gdynia Maritime University (Poland), young, dynamic programmers and creative graphic designers. Dr Leonard Tomczak, President of the Board, is also the founder and managing director of the original UNITEST enterprise. UNITEST is a world leader in creation of maritime training software and fully interactive engine room simulators with realistic 3D visualization of the machinery space. Additionally, UNITEST’s simulators use state of the art, proprietary, integrated checklists and fully automated assessment of the trainee competencies. UNITEST also creates interactive programs adapted to the needs of different marine equipment manufacturers. By using 3D technology, these programs usually extend the operator’s manuals and allow for a better understanding of the equipment’s construction and functioning. UNITEST constantly cooperates with ALFA LAVAL (Sweden), Kistler (Switzerland) and other maritime manufacturers. Recently, UNITEST has become the exclusive supplier of customized simulators for all new, electronically controlled low speed diesel engines produced by Winterthur Gas and Diesel (Switzerland) – formerly part of the Wärtsilä corporation. In order to expand the offer, UNITEST has started to develop 3D mobile applications which support the engine room maintenance works.