The new Dublin office, to be headed by partner Daniel O’Connell, will be the firm’s 15th office and its second outside the US after London. It will initially focus on corporate and capital markets, intellectual property, employment and immigration support for clients operating in the region.

David Braswell, chairman of the firm, said: “Dublin is a key steppingstone in our European expansion plans. We now have important footholds in both the UK and EU markets in a post-Brexit environment, and are better-positioned to serve our clients in Europe and beyond. We look forward to the Dublin office serving as a catalyst for our ongoing global growth plans.”

Managing partner Patrick Rasche added: “We provide intellectual property services to some of the world’s most sophisticated companies – some of which now have a position in Dublin, but many of which have operations in the EU.

“We are pleased to enter the Dublin market and will use this new capability to further our clients’ interests. We will now shift our focus to rapidly growing this office and expanding our service offering in Ireland.”

Mr O’Connell, the firm’s leader for Europe, and fellow partner Yvonne Costello, both originally from Ireland, will be responsible for the firm’s ongoing expansion plans in the region.

Prior to its acquisition by Armstrong Teasdale in February 2021, Mr O’Connell was managing partner of Kerman & Co. and responsible for managing its Dublin office.

“Post-Brexit, it was absolutely essential that Armstrong Teasdale establish a concrete presence in Dublin,” Mr O’Connell said. “Dublin clearly is a special place and continues to be a booming business market. Together with a clear client focus, we are committed to establishing a strong presence in Ireland through the addition of a highly talented team to broaden our capabilities.”

Mr O’Connell, a corporate lawyer, will lead Armstrong Teasdale’s offices in London and the new Dublin office at Fitzwilliam Hall, Fitzwilliam Place, Dublin 2.

Dentons, Fieldfisher, Clark Hill, DLA Piper and Clyde & Co are among the international law firms that have opened offices in Dublin in recent years, many citing Brexit as the main reason.