Chubb has responded bullishly to losing a number of its Manchester-based liability staff to Dual Corporate Risks.
It claimed that those who were poached were "fairly junior" and that it was business as usual.
Last week it emerged that Dual Corporate Risks poached Chubb employees Kevin Cleary, Morgan Lyons, Fiona Saggers and Debbie Sharples.
Chubb specialty lines manager Steve Blasina said that the staff were "fairly junior" and that it will be taking on more staff.
He said: "We're rapidly expanding. The management team remains in place and apart from replacing those who left, we will be putting in a new regional manager."
Chubb employs around 60 staff in Manchester and elsewhere in the regions.
Blasina said Chubb regarded the poaching of staff as "par for the course".
He said: "We do a lot of training and this means we have some of the best staff in areas such as D&O, E&O and other liability covers. Because of this, they're attractive to other companies."
He emphasised that Chubb's mission was to develop its niche products and it was targeting the provincial broker market.