In this piece, we take a look at the biggest construction companies in the world. We’ll show you where these companies are based, how much money they bring in and interestingly, how many staff members they employ? As it’s not always the companies that have the largest revenues that are the most efficient. Take Actividades De Construccion Y Servicios S.A or ACS for short, as an example. While they brought in around £30 Billion, they also have close to 210,000 employees, which give them the lowest revenue per employee of the top 10 companies, at £142,857. Compare this to Bechtel that have a slightly lower revenue of £25 Billion, but only around 53,000 staff, giving them a revenue per employee at £471,698. Take a look below and find out about the rest!