Training is provided both through the voluntary and statutory sectors. Trainers may be attached to drug teams, part of broader training teams (e.g. within Social Services) or in a small number of cases be dedicated drugs or drugs and HIV training units. In addition, there are a number of freelance trainers operating in the private sector.

A number of agencies or individuals offer consultancy or management services to drugs agencies. These may be freelance staff or be part of training or direct drugs agencies. A number of large charities exist to develop and manage drugs projects which may include some of these services within the infrastructure.