The network is informal and still developing, so has no formal members. However, individuals from the following organisations have been involved so far, demonstrating the wide range of interests:
- Barrow Hill Roundhouse
- British Motor Industry Heritage Trust
- Brunel University Library
- Coventry University Archives
- Crich Tramway Village & National Tramway Museum
- Cycling History and Educational Trust
- Daimler & Lanchester Owners’ Club
- Federation of British Historic Vehicle Clubs
- Great Western Society / Great Western Trust
- Historical Metallurgy Society
- Historical Model Railway Society
- Institution of Mechanical Engineers
- Irish Railway Archives
- Jaguar Daimler Heritage Trust
- Lanchester Interactive Archive
- Leicester Transport Heritage Trust
- London & North Western Railway Society
- Merchant Navy Locomotive Preservation Society
- Midland Railway Society
- Midland Railway Study Centre
- Modern Records Centre, University of Warwick
- Museum of English Rural Life, University of Reading
- Narrow Gauge Railway Society
- National Association of Road Transport Museums
- National Brewery Centre
- National Fairground and Circus Archive, University of Sheffield
- National Museums Liverpool, Archives Centre
- National Railway Museum
- Network Rail
- Online Transport Archive
- Peak Railway Association
- Princess Royal Class Locomotive Trust
- RAF Museum
- Railway and Canal Historical Society
- Railway Correspondence & Travel Society
- Railway Work, Life & Death project
- Science Museum Archives
- Signalling Record Society
- Society of Automotive Historians in Britain
- Thames Valley and Great Western Omnibus Trust
- Transport for London Corporate Archives
- The Bus Archive
- The National Archives
- The Rail Archive
- The Tank Museum
- Timetable World
- University of Portsmouth
- University of York
- Vintage Motor Cycle Club
- Welsh Railways Research Circle
Land Transport Archives Network 