World's Top 50 Leaders to follow in 2025

Gretta Antonescu

Company: I am Heshima

Designation: Non Executive Director

Country: Switzerland

With over two decades of international finance and leadership experience, Gretta Antonescu has established herself as a forward-thinking Non-Executive Director (NED), Board Advisor, and Executive Mentor. Her career is defined by her ability to simplify complexity, guide organizations through digital and regulatory disruption, and empower C-suite leaders with the clarity needed to lead with confidence.

Gretta’s journey began in the heart of the global financial system, where she held senior executive roles at leading institutions like Credit Suisse. Over 15 years, she led large-scale digital transformation initiatives, developed e-trading platforms, and designed strategic governance frameworks across trading, operations, and technology. Her leadership has consistently bridged business strategy with operational resilience and regulatory excellence, an approach that has proven invaluable in today’s volatile and complex business environment.

Certified as a Non-Executive Director and deeply committed to boardroom impact, Gretta brings a rare combination of technical expertise and strategic vision. Her core competencies lie in Digital Strategy, Operational and Tech Risk Governance, Regulatory Compliance, Cybersecurity, and AI Risk Management. These qualities make her a trusted voice on Audit, Risk, and Technology Committees, where the need to “see around corners” has never been more critical.

Gretta’s ability to rapidly distill complex information into clear, actionable insights positions her as a natural advisor to boards navigating digital transformation, innovation risk, and stakeholder dynamics. Her professional footprint spans across Anglo-Saxon and Southern European markets, with strong ties to the Swiss business community. This multicultural perspective equips her with the agility to understand the nuanced interplay between strategy, governance, and global business cultures, an essential quality for today’s international boards.

Beyond her board contributions, Gretta is also a neuroscience-trained Executive Mentor and Harvard Alumni Entrepreneur in Residence. Her mentoring approach uniquely blends corporate leadership experience with cutting-edge neuroscience principles, offering a transformative edge to senior leaders. She helps high-performing executives elevate their executive presence, sustain performance under pressure, and amplify their impact in fast-changing environments.

At the core of Gretta’s leadership philosophy is a deep understanding of the human and technological aspects of governance. She believes that in the age of AI, cybersecurity, and data-driven disruption, boards must evolve from reactive oversight to proactive, future-focused governance. Her work reflects this shift, offering organizations both strategic foresight and operational depth.

Today, Gretta serves as a Board Director, Strategic Advisor, and Executive Mentor, supporting organizations and leaders across sectors to strengthen their governance, mitigate emerging risks, and unlock innovation. She is particularly passionate about guiding Audit & Risk Committees, Technology and Digital Oversight Boards, and regulatory-focused governance bodies where her expertise makes a tangible difference.

Gretta Antonescu continues to be a powerful advocate for modern governance, where digital transformation, human capital, and regulatory alignment converge. With her unique ability to lead through ambiguity and inspire performance at the highest levels, she remains a sought-after voice for boards preparing for the future.

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