Strategic Partners

TDI builds dedicated project teams around specific customer requirements. In-house resources are complemented by a large network of technical consultants, preferred suppliers and manufacturers.

Specifically, TDI enjoys close working relationships with the following strategic partner companies (in alphabetical order):

CETT, China

Changzhou Evergreen Transport Technology (CETT) supplies the Chinese rail industry with complete interior systems for high speed and metro rolling stock. Since 2005, TDI has worked closely with CETT on design and engineering for many rail projects, both in China and internationally. CETT is also able to support TDI on design and supply contracts in Europe which require a competitive 'LCC' element.


Photos show Dr Roger Aylward, former Chairman of TDI's Minitram business, signing a joint venture agreement with CETT Chairman Mme Zhou (top left) and Martin Pemberton assisting the CETT team to win the PHD heated floor contract with Bombardier. 

SL Transportation

Located nearby the TDI offices, SL Transportation (trade name Severn Lamb) is TDI's ULR train manufacturing partner. The two companies collaborate on the design and supply of niche people movers and specialist trains designed to operate in attractions, theme parks, airports, exhibition sites and park-and-ride applications. Severn Lamb has been designing, building and maintaining light urban and leisure transport systems all over the world since 1947.

TDI Australia

Established in 1988 as a joint venture with Design Resource in Sydney, Transport Design International Pty Ltd is our gateway to both the Australasian and Asia-Pacific markets. Under the leadership of Design Director John Brown, our team 'down under' specialises in the industrial design of rolling stock, road vehicles, motor boats and yachts with a particular focus on style, safety, comfort and accessibility.

TDI Production Services

TDI Production Services has a core team with over three decades of experience in the design and supply of leisure transport systems to the amusement industry around the world. Much of that experience comes from a heritage of transport and 'ride engineering' making TDI-PS well placed to understand both the regulatory requirements and operational needs to introduce a new and successful transport system into any park or attraction.

Transcal Engineering

As the UK’s foremost railway seating specialist, Transcal have unrivalled knowledge and experience of the railway seating industry. Since 2014, (and for many years previously working with sheet metal fabricators Winstanley & Co Ltd who are now part of the Transcal business) TDI and Transcal have been working in partnership to undertake the design and supply of complete rail interior systems including, most recently, the HST First Class refresh and Cornish Night Riviera projects for First Great Western.


TDI is the UK design partner and sales agent for Vectus, a Korean owned company (POSCO) fully committed to become a leading, global supplier of Personal Rapid Transit (PRT) systems. PRT is a fully automated, public transportation solution that is optimally designed to offer on-demand and non-stop travel services, similar to the use of taxis but without a driver on-board the vehicle. Vehicles typically seat six to eight passengers.

Warwick Design

Transport Design International was originally founded by product design house Warwick Design Consultants in 1987. Now managed by Martin Pemberton's former business partner Robert Tansley, Warwick Design continues to support the TDI team on the design, development and prototyping of specialist electro-mechanical products and equipment.