rank 2017 rank 2016 firm; 1: 1: acs, actividades de construccion y servicios sa, madrid, spain† 2: 2: hochtief aktiengesellschaft, essen, nrw, germany† 3 ...

Readers of ENR direct a steady stream of questions about the magazine’s indexes and how to accurately apply them to various construction projects. To help clarify the nature and uses of the cost ...