Cybersecurity Beyond the Tools: Investments,…
Our organization
Executive Leadership
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Matthieu Courtecuisse
Founder & CEO | New York
Matthieu Courtecuisse is the Founder & CEO of Sia (1999). An AI & maths engineer by training, he leads Sia's North America hub from New York. He has authored several books on economics, is active in think tanks such as the Milken Institute and the Economic Club of New York, and received the 2025 SIFMA Foundation Industry Award.
Linkedin Email contact matthieu.courtecuisse@sia-partners.com
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Sandrine Carreau
President & Chief Operating Officer | Paris
Sandrine Carreau is the President & Chief Operating Officer of Sia. After graduating from EDHEC, she joined Sia in 2012 and held various corporate roles before taking on her current position in 2024. She oversees group-wide operations, including M&A strategy.
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Alix de Guibert
Group CFO | Paris
Alix de Guibert is the Group CFO of Sia. After graduating from ESSEC, she began her career in audit, transaction services and advisory at PwC before joining the Group finance leadership at Publicis, then Vivarte. Since 2019, she oversees Sia's financial performance and strategy.
All our leaders
Use the below filters to find experts in your country or your industry.
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Enjoyce Zhu
Partner | Shanghai
Enjoyce Zhu is Market Head of Sia Partners China.
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Eric Aubailly
Managing Director | Montréal
Managing Director in Montréal, Eric has 36 years of experience. He supports clients with business and IT transformation strategies and projects . His expertise spans financial services, telecoms, manufacturing, education, and the public sector.
- Business Transformation
- Compliance in the Insurance Sector
- Cybersecurity & AI Trust
- Data & Artificial Intelligence
- IT Strategy & Digital Transformation
- Banking & Capital Markets
- Insurance
- Manufacturing
- Telecoms
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Eric Blackman
Partner | New Jersey
25 years experience in Financial Services, Capital Markets and Institutional Banking.
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Etienne Ranwez
Managing Director | Brussels
Etienne is a Managing Director in the ICB (Insurance, Compliance & Banking) practice in Brussels, focusing on Digital, Tech/AI & Organizational strategy and transformation in Financial Services, with experience across European and Asian markets.
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Fabien Zaveroni
Associate Partner, Financial Services & Compliance | London
Fabien is an Associate Partner in the Banking practice in London.
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Fares Barsaoui
Managing Director | Paris
Fares is a Managing Director at Sia. He advises major corporations, especially in banking and financial services, on AI function transformation, AI industrialization, and the reinvention of data, and AI operating models.
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Filipe Lyrio
Managing Director, Energy and Resources | Middle East Hub
Managing Director with nearly 20 years of experience with track record in commodities in major energy companies such as Shell, Repsol and ADNOC.
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Florian Amirhosseini
Managing Director, Technology Advantage | Paris
Florian is a Partner in Paris within the Technology Advantage Business Unit. Formerly at EY, he advises CIOs and CDOs on IT roadmaps, Data & AI transformation, and cloud strategies. He combines strategic vision with operational pragmatism to deliver value-driven technology portfolios.
Linkedin Email contact florian.amirhosseini@sia-partners.com
- IT Strategy & Digital Transformation
- Data & Artificial Intelligence
- Corporate Culture Alignment
- Automotive, Aerospace & Defence
- Telecoms
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Florian Oda
Managing Director | Paris
Florian is a Managing Director based in Paris, specializing in cybersecurity strategy, resilience, and data protection governance, with cross-sector experience in cyber strategy, governance, and due diligence, helping organizations strengthen risk posture and operational resilience.
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François Dupeyroux
Managing Director Energy & Resources | Perth
François Dupeyroux is part of the Energy & Resources leadership team at Sia in Australia.
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François Berteloot
Associate Partner | Paris
François is an Associate Partner based in Paris, with deep expertise in banking and financial services transformation, post-M&A integration, and operating model design, complemented by cross-functional experience in strategy execution and large-scale program delivery.
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Gary O'Sullivan
Managing Partner | Dublin
Gary O’Sullivan is a Partner based in Dublin. With over 30 years of experience in consulting, he specialises in business transformation, the development of market-defining strategies and the impact of new technologies on business.
- Banking & Capital Markets
- Insurance
- Life Sciences and Healthcare
- Consumer Goods & Retail
- Manufacturing
- Business Transformation
