MDM is an Irish subsea telecommunications infrastructure developer and engineering company founded in 1990. With over three decades of experience, the company provides end-to-end services for subsea fibre-optic cable projects, including feasibility studies, route planning, marine surveys, engineering design, permitting, procurement, installation supervision, cable landing activities, and operations and maintenance. MDM has delivered and supported major international cable systems across Europe and beyond, including IRIS, Scylla and Rockabill. The company is a project partner in the PISCES Subsea Cable System, which aims to connect Ireland, France, Spain and Portugal, strengthening Europe's digital connectivity and network resilience. MDM is headquartered in Dublin, Ireland, with an additional office in Madrid, Spain.