This is a link to the National charity ADDISS, they also have a helpline from which you can get advice. They also run courses for parents and professionals throughout the UK. ADDISS
Northamptonshire’s Parent Partnership Service provides parents, carers and professionals with impartial advice, support, and information around special educational needs (SEN), exclusion, choosing a school and parent involvement in decision making.
Services for children and young people (aged 0-25) with special educational needs and disabilities. Including the SNIX directory, this is a quarterly magazine highlighting some of the services that are available locally, also clubs and activities for young people with a special need.
The charity is a ‘parent led’ organisation whose mission is to provide high quality services to people across the autistic spectrum throughout their lives which will maximise their opportunities and add to the quality of their lives and that of their families and carers.
Autism Concern provide family support though a dedicated helpline and website, they also run services for children with a diagnosis of autism spectrum disorder.