The Austria-based construction outfit employs more than 71,000 people and pulled in revenue upwards of $ 14.46bn in 2016 . That was a dip from the 2015 revenue of $ 15.28bn behind CEO Thomas Birtel . Specializing in projects such as tunnels , civil engineering , and a variety of transportation infrastructure , Strabag has three main branch operations . One segment manages operations in Germany , Scandinavia , Poland and the Benelux countries with regards to offshore wind and hydraulic engineering . Another sector targets railway construction in countries such as Switzerland , Slovakia , Hungary , Austria and Russia among others . The international wing focuses on tunnelling , properties , infrastructure and materials . Strabag ’ s notable works include the Alte Wesser lighthouse , Copenhagen Metro , and Limerick tunnel in Ireland .

This French engineering company is based in Asnières-sur-Seine and reported revenue of $ 16.69bn in 2016 . Under the leadership of CEO Pierre Berger , Eiffage improved its revenue from $ 16.45bn in 2015 . Eiffage has been a fast-riser in the construction world . Founded only 25 years ago , it has already emerged as a top five revenue-getter and completed projects such as the Channel Tunnel , Copenhagen Metro , Millau Viaduct and LGV Perpignan-Figueres highspeed rail . With a workforce topping 60,000 employees , the organisation has sectors in Belgium , Germany , Spain and Italy .

44 January 2018