Initial services were hauled using leased rolling stock from other operators; the company has since built up its own inventory, including a fleet of electric locomotives (diesel traction was largely phased out during the 2010s) and over 400 container platforms.
Shortly following the start of commercial operations, NS Cargo decided to withdraw itself from the joint venture, it was replaced by the Danish shipping firm Mærsk Line, which participated alongside the three other founding logistics companies.
At the time, the added value offered by the company was based around its organisation of intermodal shuttle solutions, which gathered sufficient volumes from its stakeholders, and tightly monitored and controlled the performance of the traction services that were provided by its external suppliers.
[1] By 2007, ERS Railways BV (at that time fully owned by Maersk Line) had leased 17 Class 66 diesel locomotives that it was using on its long distance corridors.
[6][7] By April 2014, ERS Railways was operating 250 trains per week, which carried a various of maritime and tank containers alongside standard and outsize trailer units.
[1] Into the 2020s, the company has continued to primarily focus on the movement of intermodal traffic between various seaports in both Germany and the Netherlands into major economic hubs across the German hinterland, offering both terminal-to-terminal and terminal-to-door solutions to customers.