Awning Cleaning

Hi everyone, we are about to go away in October so I got the awning out of storage ready, but we allowed some friends to use it. We'll its filthy and its been put back in the bag I think damp by the look & smell of it.

Does anybody know the best way to at least clean it as best we can then have it professionally cleaned. Does anybody know of any companies they have used in the past.

Thankyou very much