Can anyone help signpost me for a diagnosis - South Yorks area?

I am looking for a private diagnosis for my 10 year old daughter for ASD/ADHD. She has been on NHS pathway for nearly 3 years and she is starting to struggle at school. I am looking to find a good standard private diagnosis in the Sheffield area who follows NICE guidelines and has a multi disciplinary team approach - can anyone recommend someone for me? 

Thanks Slight smile