Shape and topology optimization via the level set method has started attracting the interest of an increasing number of researchers and industrial designers over the past years. A large number of academic problems, using various objective functions and constraints, have been successfully treated with this class of methods, showing its efficiency and flexibility. But real industrial applications may involve more complex and mixed constraints than classical optimal design problems. Moreover, they are sometimes not easy to formulate from a mathematical point of view, and even more difficult to handle numerically. Examples of such real life problems will be shown at the conference.