Head of Site appointed for Long Marston

Porterbrook has announced the appointment of Mark Knowles as Head of Site for the Long Marston rail facility.

Mark brings to this new role a wide range of first-hand operational and engineering experience.

Previous senior roles include Managing Director of Arriva Train Care and Interim Engineering Director at Knorr-Bremse Rail Services. Mark has also supported a range of rail related businesses in a consultancy role.

As well as supporting initial mobilisation at the Long Marston site, he will also take on long-term development and operational management of the Warwickshire facility.

Jason Groombridge, Director of Engineering Services, commented: “We are delighted to have attracted such a high calibre candidate. Mark brings deep knowledge of the rail industry and shares our passion and vision for the Long Marston facility”.

Mark Knowles, Head of Site, said: “I am really proud to have been appointed by Porterbrook to oversee the transformation of this historic location to meet the needs of the future railway. I look forward to working with colleagues across our company and industry to make this a reality”.

Mark will be reporting to Neil Foster, Fleet Services Director.

Porterbrook takes over the Long Marston facility at the end of June 2021, under a 15-year lease with site owner St. Modwen. The extensive rail-connected rail facility covers 135 acres and consists of 12 miles of storage sidings, a two-mile test-track loop, a short length of electrified line and a number of rail served light maintenance structures.

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Media Contacts

Porterbrook Leasing

Rupert Brennan Brown, Director of Stakeholder Engagement

Rupert@porterbrook.co.uk or +44 (0)7973 950 923


Financial or corporate PR enquiries can also be directed to:


James Isola, Partner


James McFarlane, Partner

jmcfarlane@maitland.co.uk or +44 (0)20 7379 5151

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