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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Jeff Gapusan
Managing Director, Financial Services | New York
Jeff is a Managing Director in Financial Services based in Atlanta. With 20 years of experience at Citi and Cantor Fitzgerald, this FinTech and digital assets expert advises C-suite leaders on commercial strategy and the negotiation of complex institutional transactions.
- Banking & Capital Markets
- Finance
- Asset Management
- Asset & Liability Management
- Modern Finance
- Corporate and Investment Banking
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Jérémie Rondeau
Managing Director | New York
Jeremie, a Managing Director in our Data Science practice, is a seasoned data expert with a wealth of experience in the dynamic realms of Artificial Intelligence and Digital Transformation, complemented by a robust background in project management.
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Jérémy Fétiveau
Partner, Lifestyle & FMCG | Hong Kong
Jérémy is a Partner based in Hong Kong. Expert in Consumer Industries, Luxury and Lifestyle, he specializes in strategic studies and digital transformation. He supports leading firms on innovation, marketing, customer experience, and operational excellence to drive business growth and performance.
- Luxury Goods and Beauty
- Consumer Goods & Retail
- Growth Strategy
- Business Transformation
- Marketing & Customer Experience
- HR & Organizational Effectiveness
- IT Strategy & Digital Transformation
- GEO, AEO and agentic e-commerce
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Jeremy Garcia
Associate Partner | Paris
Jérémy is an Associate Partner in our Financial Services practice. He co-leads our Risk Management offer in our Paris office, developing expertise and technology-driven approaches to support major transformation programs.
- Asset & Liability Management
- Risk Management
- Corporate and Investment Banking
- Compliance & Financial Security
- Jeremy Garcia
- Business Transformation
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Jeroen Alsem
Managing Director, Energy & Industry | Amsterdam
Jeroen is a Managing Director in Amsterdam within the Energy & Industry Business Unit. Since 2015, he has specialized in Energy Trading, Portfolio Management, and Data Analytics, helping grid operators and suppliers translate complex market challenges into tangible results.
- Energy, Resources & Utilities
- Business Transformation
- Data & Artificial Intelligence
- IT Strategy & Digital Transformation
- Pricing and Revenue Management
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Jeroen de Laat
Partner, Energy & Industry | Amsterdam
Jeroen de Laat is Partner in Energy & Industry at Sia. He has an MSc degree in Business Administration and over 20 years of experience as a consultant/project manager.
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Jérôme Delamarche
Managing Director | Paris, France
Jérôme is a Partner based in Paris. He graduated from Polytech Paris-Saclay and specializes in cybersecurity strategy and operational resilience. He supports his clients with IT risk assessments, business continuity planning, and the convergence of risk management and compliance.
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Joshua Speidel
Partner | Seattle
Dr. Speidel is a Partner based in Seattle WA. He joined Sia following a career at DARPA and BARDA. With a PhD from Cornell, he specializes in non-dilutive funding, biotechnology product development, biodefense, pandemic preparedness, AI and strategic innovation for life sciences companies.
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Judy Sandford
Managing Director, ESG Strategy & Communications Lead | New York
Judy Sandford is a Managing Director at SiaXperience, part of Sia Partners, leading the ESG Strategy & Communications practice.
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Julien Bordron
Associate Partner, Finance & Procurement | Paris
Julien is Managing Director in the Finance & Procurement practice of Sia Partners. He joined the firm in 2018 after 10 years of experience in management consulting.
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Justine Destobbeleire
Managing Director | Paris
Justine is a Managing Director at Sia. after starting her career at Accenture, where she worked from 2013 to 2018 as a digital and emerging technologies consultant. She graduated from École des Mines de Saint Étienne and Emlyon Business School.
Linkedin Email contact justine.destobbeleire@sia-partners.com
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Kathy Penchuk
Engagement Director – Cybersecurity, Data Protection, and IT Risks | New York
Kathy is an Engagement Director at Sia based in New York. Formerly at the Fed and IBM, she specializes in systemic risk, regulatory compliance, and cybersecurity. She holds degrees from Smith, JHU, and Wharton, plus elite certifications including CISSP, CISA, and PMP.
