Blake, Cassels & Graydon and Cassels Brock & Blackwell were the top mergers and acquisitions (M&A) legal advisers in the metals & mining sector during the first three quarters (Q1-Q3) of 2026 by value and volume, respectively, according to the latest legal advisers league table by GlobalData, a leading intelligence and productivity platform.

An analysis of GlobalData’s Deals Database reveals that Blake, Cassels & Graydon achieved its leading position in terms of value by advising on $14.6 billion worth of deals. Meanwhile, Cassels Brock & Blackwell led in terms of volume by advising on a total of 22 deals.

Aurojyoti Bose, Lead Analyst at GlobalData, comments: “Both Blake, Cassels & Graydon and Cassels Brock & Blackwell witnessed growth in deal value and volume, respectively, during Q1-Q3 2026 compared to Q1-Q3 2025. There was also an improvement in their rankings by these metrics. Cassels Brock & Blackwell’s ranking by volume improved from second to the top spot. It also held the second position in terms of value.

“Meanwhile, Blake, Cassels & Graydon’s ranking by value jumped from seventh to the top position. During Q1-Q3 2026, the firm advised on five billion-dollar deals* and involvement in these big-ticket deals helped it register growth in its total advised deals value as well as improvement in its ranking by this metric. It also held the third position by volume.”

Cassels Brock & Blackwell occupied the second position in terms of value, by advising on $13.8 billion worth of deals, followed by McCarthy Tetrault with $12.7 billion, Paul, Weiss, Rifkind, Wharton & Garrison with $12.5 billion and Fasken Martineau DuMoulin with $12.3 billion.

Meanwhile, Fasken Martineau DuMoulin occupied the second position in terms of volume with 18 deals, followed by Blake Cassels & Graydon with 17 deals, McCarthy Tetrault with 17 deals and Paul, Weiss, Rifkind, Wharton & Garrison with seven deals.

*Deals valued more than or equal to $1 billion