There are no current operators in the UK, there is no S333 flying in UK any more. The only ones left are held by Fast Helicopters at Shoreham. They have recently sold two to Fuchs Helicopters Switzerland according to Helihub. Dependent upon the parts, Fast might be interested. There is an operator in Holland I think.
Out of curiosity, I'd be interested to learn how you 'inherited' them.
Best Wishes