There’s a directory in Cardiff that has massive domain authority, good traffic and the ultimate amount of trust. It’s free to get into and it takes about 5 minutes to great a live listing. My agency is already live here. It is Cardiff’s Governmental business directory.
For any businesses not already on this, I highly highly recommend getting you a** over there, setting up a little listing and getting set-up with a link back to your site…. It is insanely powerful from a trust & Google trust point of view. Just go get it done!