BASS Autism Services for Adults provide service to adults with autism spectrum conditions (ASCs) and professionals and carers who support them. These include assessment and diagnosis on referral, advice services, post-diagnostic support, one-to-one appointments, group sessions and training.
Resources: Autism and Asperger's
The National Autistic Society is a UK charity for people with autism (including Asperger syndrome) and their families. They provide information and support, and campaign for a better world for people with autism.