COMSA has been taking part in the development of Spanish railway infrastructures since 1891. The company offers comprehensive services in the railway sector which cover initial studies, design and the building and maintenance of railway infrastructures and superstructures.
It is the leader in Spain and also has permanent operations in Argentina, Lithuania, Poland, Portugal or Turkey. It has also taken part in a large number of projects in other markets such as Italy, the Philippines, Taiwan, Malaysia, India, etc. Its extensive experience has been key to its consolidation in the railway sector and has enabled it to become the leader in the railway construction industry.