McCarthy Tetrault and Fasken Martineau DuMoulin were the top mergers and acquisitions (M&A) legal advisers in the metals & mining sector during the first quarter (Q1) of 2026 by value and volume, respectively according to the latest legal advisers league table GlobalData, a leading intelligence and productivity platform.
An analysis of GlobalData’s Financial Deals Database reveals that McCarthy Tetrault achieved the leading position in terms of value by advising on $7.3 billion worth of deals. Meanwhile, Fasken Martineau DuMoulin led in terms of volume by advising on a total of seven deals.
Aurojyoti Bose, Lead Analyst at GlobalData, comments: “Fasken Martineau DuMoulin, apart from leading by volume in Q1 2026, also gave close competition for the top position by value. While McCarthy Tetrault led the chart by value, Fasken Martineau DuMoulin missed the top spot by a whisker and occupied the second position by this metric with $7 billion in total deal value in Q1 2026.
“Interestingly, both the firms advised on two billion-dollar deals* each during the quarter, which helped them solidify their leadership positions in terms of value during the quarter. Moreover, apart from leading by value in 2026, McCarthy Tetrault also occupied the second position by volume with five deals.”

Paul, Weiss, Rifkind, Wharton & Garrison occupied the third position in terms of value, by advising on $5.5 billion worth of deals, followed by Cassels Brock & Blackwell with $5.1 billion and Blake Cassels & Graydon with $4.5 billion.
Meanwhile, Cassels Brock & Blackwell occupied the third position in terms of volume with five deals, followed by A&O Shearman with four deals and Blake Cassels & Graydon with three deals.
*Deals valued ≥ $1 billion