TOP 100 | LEADERS

Title: Chief Executive Officer Company: Petrobras Industry: Oil & Gas

Magda Chambriard has spent over four decades shaping Brazil’ s energy sector. A chemical engineer by training she joined Petrobras in 1980 rising through production before leading the ANP as its first female director-general from 2012. She returned in 2024 as Petrobras CEO steering the state giant through investment and reform.

Title: Chief Executive Officer Company: Oracle Industry: Technology / Software

Clay Magouyrk forged his career through engineering rather than conventional executive routes, spending two years at Hilton before six at Amazon Web Services and then joining Oracle in 2014. As a founding architect of Oracle Cloud Infrastructure he scaled it into a genuine cloud contender, ultimately rising to co-CEO in September 2025.

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