Refiner recommendations in the UK please

[apc]

I have a small'ish - but expanding - business purchasing all types of Gold scrap including plated, computer CPU's and looking to outsource the processing to a reliable, reputable and trustworthy refiner in the UK who will process relatively small volumes at a sensible cost.

Would be grateful for any recommendations.

Also - is is practical to process significant volumes - hundreds of kilos rather than tons - of this sort of scrap at home safely, or would an industrial unit or outsourcing be required?

Thanks very much.