GISMAN issues from B.B.T. Company established in 1860 and specializing in the implementation of major historic lighthouses and light stations on all continents, until the late 1960s.
In the early 1990s, GISMAN was acknowledged as a pioneering designer and manufacturer of modular plastic navigational buoys (with rotational moulding polyethylene float).
Since early 2023, GISMAN offers a complete range of LED lanterns, and a suite of applications to monitor and manage your AtoN system.