Martin & Olivier Bouygues net worth: Brothers Martin & Olivier Bouygues are French businessmen who have a net worth of $3.8 billion. Martin and Olivier Bouygues own just over 21% of the Bouygues Group, which is a diversified industrial conglomerate founded by their father, Francis Bouygues, in 1952. Apart from construction, the company also has interests in telecommunications and media. Martin began as a supervisor and now serves as a chairman and CEO, while his brother Olivier acts as the deputy chief executive and CEO of their holding company, SCDM. Among the most notable construction projects of the company are the Hassan II Mosque in Casablanca, the University of Riyadh in Saudi Arabia, the English Channel Tunnel, the Kwun Tong viaduct in Hong Kong, numerous motorways in Hungary, as well as the Sydney CityRail airport link. As for Bouygues Telecom, it got a rise in 2013, when its parent company invested a hefty sum into the firm in an effort to boost its expansion amid increased competition. In addition to the above, the two brothers own famous vineyard, the Chateau Montrose, which they bought in 2006, and ever since they started selling wine. Being a close friend of ex-French President Nicolas Sarkozy, Martin is the godfather of Sarkozy's son. He was also presented with the ultra-prestigious Legion d'honneur in July 2010. According to Forbes, they are ranked as #12 among the richest in France as of March 2013.