walkerwarren associates limited.
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Northern Rail

Heidi Mottram, Managing Director of Northern Rail said:“ We are very satisfied with the way Andrew has managed this complex
and high profile project on behalf of Northern and our stakeholders. The process was very thorough and considered all the issues,
which are key to the success of our franchise going forward. We appreciate the efforts of Andrew and the evaluation team and the
professional way the project has been managed.”


John Leech, Director of Atkins Rail comments “Through Chris Warren’s rail industry knowledge and key involvement in the negotiations
for the new trains and signalling, for both the Victoria Line and Sub-Surface lines, he has brought an invaluable depth of knowledge to Metronet’s Victoria Line Programme.  This coupled with Chris’ all round professionalism and experience has allowed his remit to encompass wider commercial and client support including managing the London Underground PPP and key supply chain contracts.”

Northern Ireland Railways

Mal McGreevy, General Manager, Rail Services says, “Andrew’s experience and professionalism in rolling stock procurement has
undoubtedly assisted us through this complex project. He has worked extremely well with all the members of NIR’s project team and
those within NIR’s Board of Directors, in providing advice and assistance as issues arose during the project.”

Interfleet Technology

Jonathan Wragg Regional Director UK says,“Interfleet only collaborate with partners who share a similar value in enhancing the client’s
business success, whilst delivering a quality and courteous service.  walkerwarren associates firmly fit into this category and we look
forward to working with them on major projects that will re-shape the UK and world railways in the coming years.”

Heathrow Express

Mike Noakes General Manager Rail Projects, says "BAA and Heathrow Express rely heavily on external advice from consultancies in our rail operations business. Andrew has demonstrated time and again his value to us, in being able to lead and manage complex  projects, professionally, with the minimum amount of fuss and the maximum amount of value!”

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Gerry Mc Fadden, Engineering Director says: "We are indebted to Andrew in managing us through our acquisition of new trains from Porterbrook Leasing and Bombardier Transportation. I had worked with Andrew on a previous train procurement project and knew he would be able to lead our team in the acquisition of 12 x 4 car Class 377 EMUs. We are delighted with the way he took the project forward in what were very tight timescales and have no reservations in using him again should the need arise".


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