The office is headed by associate partner Sarah Carrell and works initially for two clients: CCTV firm Quadnetics and business accelerator Galileo Innovation.
After leaving property firm Capital & Regional in September 2001, where she had been head of corporate comms for four years, Carrell has run her own Yorkshire-based consultancy - Carrell Communications - which has now folded.
The Leeds office reports to London senior partner Julian Bosdet.
Peter Curtain and Henry Harrison-Topham, both of whom are associate partners, are Bankside's other Leeds staff.
Curtain was business editor of the Yorkshire Post from 1997 to 2000 and also City editor of Business a.m. from August 2000 to October 2001.