GMF
Comprehensive solutions for rolling stock maintenance
GMF is a company which specialises in railway rolling stock maintenance, the manufacture and marketing of spare parts as well as new equipment design.
With over 50 years of expertise, the organisation provides a comprehensive service which combines efficiency and quality criteria, with optimum safety conditions; it features cutting-edge facilities at highly competitive costs.
GMF Activity sectors
Maximum efficiency and premium quality service
GMF News
Latest news from COMSA Corporación
GMF, recognised at the 2026 Corredores Awards
GMF, a COMSA Corporation company specialising in the maintenance of railway rolling stock, has been awarded the Corredores 2026
GMF to adapt a hundred Pecovasa car-carrier wagons
GMF has been awarded the contract by Pecovasa – a subsidiary of Renfe Mercancías – for the adaptation of
GMF will execute comprehensive maintenance of Peru’s first underground metro system
GMF has been awarded the contract for the comprehensive maintenance of Line 2 of the Lima and Callao Metro,
Conversion of a track inspection trolley in Portugal
GMF has executed the conversion of a track inspection trolley (draisine) owned by Infraestruturas de Portugal for personnel transport