Recommend data sources used for preloaded bank branch sort and BIC codes

Summary:

My client is mainly UK-based and would like to preload bank and branch data in the Cash Management module, so that branches with their sort codes for all/the most popular banks in the UK can be made available to suppliers when they register and submit their bank accounts via the Supplier Portal.

It would also be beneficial if BIC codes for the most popular international banks can be preloaded as well for foreign suppliers.

Has anyone here used a reputable source of bank and branch data (name, sort code, BIC code, etc.) that they can recommend from their own implementation experience?