Bank of Ireland UK
This number is listed by Bank of Ireland UK on its own website (Business and corporate banking, and Northern Ireland head office).
Source: “Business Banking 028 9043 3000” (opens in a new tab). Checked 13 October 2026.
This could still be a scam call
Criminals can make their number look like a genuine one (this is called spoofing). If someone calls from this number and asks for money, bank details, a code or passwords, hang up. Then call Bank of Ireland UK back on the number on the back of your card, or call 159, which connects you to your bank.