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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Brad Purohit
Managing Director, Financial Services | London
Brad Purohit is a Managing Director in our Brand, Innovation & Culture practice in London. He graduated from UAL and was on the founding team of The Upside, a Sia Company. He was Director of Creative Strategy at Condé Nast Britain and held board roles at cultural institutions including Colnaghi. He advises leading brands on growth and innovation.
- Growth & Innovation
- Marketing & Customer Experience
- Consumer Goods & Retail
- Media & Entertainment
- Luxury Goods and Beauty
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Brendan Lannoye
Managing Director | Perth
Brendan has experience advising leading organisations across Australia and Europe.
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Brendan Moriarty
Associate Partner, Financial Services | New York
Brendan is a New York-based Associate Partner. An accomplished global leader, he has excellent problem-solving skills delivering actionable recommendations that drive long-term value. He has a strong track record working with broker-dealers, asset and wealth managers, custodians, and asset owners.
- Banking & Capital Markets
- Data & Artificial Intelligence
- Growth & Innovation
- Business Strategy & Corporate Planning
- Business Transformation
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Brett Brenkus
Partner, Financial Services | Charlotte
Brett is a Partner at Sia based in Charlotte. With 20 years of experience at Deloitte and Grant Thornton, this former U.S. Army Officer leads the North American Fintech practice. He advises major institutions on strategic transformations, post-merger integrations, and complex change management.
- Business Transformation
- Procurement 4.0
- Compliance Function: Organization and Efficiency
- Manufacturing
- Business Strategy & Corporate Planning
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Brice Picardat
Managing Director | Paris
Brice is Managing Director based in Paris, specializing in energy and utilities consulting, market strategy, and transformation initiatives, with expertise in gas, electricity, and water markets and cross-sector experience in market analysis and business development.
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Bruce Deaner
Managing Director | Tokyo
Bruce is a Managing Director based in Tokyo and Head of Financial Services. He helps leading FS firms transform through strategy, innovation, tech integration, operating model and governance, leveraging people, process, data and emerging tech like AI and blockchain to improve growth and performance.
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Camille Marzuoli
Partner, Energy, Resources & Utilities | Paris
Camille is a Partner in our Energy & Utilities practice. He leads smart grid developments, and supports grid operators and utilities in global transformation towards higher performance and sustainability for the benefit of the whole energy system.
- Energy, Resources & Utilities
- Smart Grids
- Energy Transition
- Electricity
- Gas
- New Offers in Energy, Utilities and Environment
- Energy Services
- Business Transformation
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Camilo Ramirez
Associate Partner | Hong Kong SAR
Camilo is an Associate Partner with 14 years of experience, who focus on large transformations and innovation in Asset Management, Insurance and Banking.
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Carlos Guevara
Partner, Energy & Public Sector | Middle East Hub
Since 1997, Carlos has advised over 50 organizations, across +15 countries. Before joining Sia, he co-founded the boutique consultancy ShiftIN Partners. He also held leadership positions at The Palladium Group and at the global giant CEMEX.
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Carolann Regular
Partner | Edmonton
Partner in the Edmonton office of Sia Partners. Carolann was the founder of E2E Business Transformation, now acquired by Sia Partners.
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Cassidy Cantin
Associate Partner, Life Science | Los Angeles
Cassidy is an Associate Partner at Sia/LBG, helping companies navigate, secure and manage non-dilutive funding in the life sciences industry.
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Catherine O'Doherty
Associate Partner | Dublin
Passionate about delivering sustainable change in organisations through collaboration with, and commitment to, our clients.
