Take your pick:

Either:
The Belfast Brewing Company: "Belfast based Belfast Brewing Company Ltd Private Limited Company employer has been trading since 25/10/2012 (registration number: NI615148). Employer's headquarter address is 4 Belmont Park, , Belfast, , BT4 3DU, United Kingdom.". Alexandra Tennant as Director/Company Secretary.

Or:
Belfast City Brewing Company Ltd. (NI029965). Registered Address: 22 Lower Windsor Avenue, Belfast, BT9 7DW