LONDON — Bank of America said on Friday that it had chosen Dublin as its future European Union hub, the latest major financial services firm to outline its plans to deal with Britain’s departure from the 28-nation bloc. 

Many banks and financial firms have concentrated their European operations in London, taking advantage of deep and liquid markets as well as the wide variety of support industries that have built up in the British capital, including accountants and lawyers.  But those companies now face the distinct possibility that they may no longer be able to serve European clients from London after Britain leaves the bloc. 

With Britain as a member of the bloc, companies based in the country have been able to sell financial products across the Continent under “passporting” rules, which allow a lender licensed in one member state to work throughout the European Union. 

That is no longer guaranteed when Britain leaves in 2019, so financial companies have been moving forward with contingency strategies, and Bank of America is the latest lender to announce its plans.