Hi.
For B to C services then generally the Place of Supply would be the supplier's country and for B to B services then tthey would be subject to the reverse charge by the UK business customer.
However there are exeptions to these general rules .
You would need to carefully read the rules for these exeptions in sections 7-10 of the guidance below:
Land related services
These rules can be complex and so if you need further help please contact our Helpline as below:
VAT: general enquiries