Association of Larger Scale Railway Modellers, (ALSRM), open to anyone interested in model railways in the larger scales, be it electric, steam, clockwork etc.

Modern Image O Gauge, (MIOG), “giving the Modern Image O Gauge modeller the platform and tools required to enjoy the hobby”.

Model Electronic Railway Group, (MERG), is a society promoting interest in the application of electronics & computers to all aspects of railway modelling. This is done through a vast library of information, video tutorials, local groups and extensive range of electronic kits, which range from the simple to the sophisticated.

Diesel and Electric Modellers United, (DEMU) , multi-scale society for the modeller of the British Diesel and Electric era.

ScaleSeven Group, working to standards based around the correct rail and wheel profiles, with a back-to-back distance of 31.2mm and a rail gauge of 33mm.

The Signalling Record Society, maintains and shares knowledge of Railway Signalling and Operation in the British Isles and Overseas. Everything from the present day signalling to the earliest times.

The 7mm Narrow Gauge Association, aims to encourage the modelling of narrow gauge railways at a scale of or around 7mm to 1 foot (1:43)