Need to consider new suppliers for my D&A, medicals etc. in the UK. Must comply with standards.
Can anyone recommend a good one?

Many to choose from - try BUPA or Healthcare Connections, they are well distributed

Healthcare Connections will be exhibiting at the Rail Network Conference on 23rd June at the British Library, Euston.
They'll be happy to talk with you and give you all the information you need.

Thanks for the information Guys, much appreciated.

Express Medicals have always done a good job for me;-
 
http://www.expressmedicals.co.uk/

They didn't call me back when they said they would!