The firm today emerged on top of rankings published by research firm Refinitiv, which follows a similar ranking by Mergermarket last week.

Matheson acted on 31 transactions in the first three quarters of the year.

Robert O’Shea, partner and head of corporate at Matheson, said: “Coming on the back of the Mergermarket rankings last week, which also named Matheson as the number one Irish M&A law practice, today’s ranking by Refinitiv just serves to underline and reinforce the reputation, consistency and expertise of our corporate M&A team.

“Clients are attracted to Matheson by the expertise and experience of the team across all sectors and by the fact that, as a large international and independent law firm, we are asked to lead complex and high profile international and domestic transactions. We attract the best talent to the firm for the same reason.”