The DIA Group includes an internationally respected accrediting body for driver training and testing and one of the UK’s leading advanced motoring testing and training brands. We are also the leading publisher of driver training titles.

Read more about our wider activities by visiting our group websites.

Driving Instructors Association

The UK’s largest professional driver and rider training association

Diamond Advanced Motorists

Providing accredited advanced driver and rider training and testing programmes worldwide


The leading news resource for the professional driver and rider trainer

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