Best company to buy $ and transfer to USA

[Shelsleyf2]

Hi I am buying a property in USA. I need to buy $430000 and transfer to USA. Anyone recommend a company, good rates and secure?
Many thanks

[RC1807]

Worldfirst.com/uk

Used them to move some inheritance funds. Cheaper than UK high street banks.
Better rates, too.

[gregf40mark2]

Revolut will give the interbank rate.

[boxst]

In second Revolut although they occasionally flag me and freeze funds until I prove where the money came from.

[The Moose]

Transferwise

[jardinec]

Transferwise has worked for me in the past (smaller amount though, circa £1k etc). Good rates and just works painlessly.