Cybersecurity Beyond the Tools: Investments,…
Our organization
Executive Leadership
-
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
-
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.
-
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.
-
Geoffroy Rabany
Managing Director | Paris
After seven years in the energy, industrial and banking sectors, Geoffroy joined Sia in 2020. He then moved to the TEC BU, supporting the firm’s growth with CIOs on IT performance and transformation, driven by AI (GenAI), data and IoT.
-
Grant Rutherford
Managing Director, Financial Services | Toronto
Grant is a Managing Director in Toronto within the Financial Services Business Unit. With 25 years of experience at IBM and Capco, he specializes in Risk, Compliance, and ESG, delivering large-scale strategic and technical initiatives through advanced data analytics and AI solutions.
- Risk & Compliance
- Banking & Capital Markets
- Data & Artificial Intelligence
- Insurance
- Manage your Compliance Risks
-
Grayson Blair
Partner, US Head of Data & AI | Charlotte
Grayson Blair is an accomplished, award-winning servant leader with 25+ years of consulting and financial services industry experience. Grayson leads the Data and AI consulting services across the U.S.
-
Gregory McNamara
Managing Director, Financial Services | Charlotte, NC
Managing Director, Financial Services | Charlotte
-
Haithem Choukatli
Managing Director, Energy & Utilities | Paris
Haithem is a Managing Director in Paris within the Energy & Utilities Business Unit. With 13+ years of experience at Emerton and ENI, he advises energy players on natural gas, LNG, and low-carbon molecules like biomethane and hydrogen, focusing on market strategy, infrastructure regulation and litig
-
Iliass Terchoune
Partner, HR & Transformation | Casablanca
Iliass is a Partner in Casablanca within the HR & Transformation Business Unit. With 25 years of experience, including two decades at Inetum Consulting, he specializes in organizational transformation, strategy, and digital HR programs for major public and private institutions.
- HR & Organizational Effectiveness
- Business Transformation
- Business Strategy & Corporate Planning
- Government
-
Isabelle Catry-Martin
Partner, Finance Procurement & Real Estate | Paris
Isabelle began her career in consulting in 1998, after having managed Procurement and a European project to reduce costs in the metalworking industry. She joined Sia Partners in 2014.
Linkedin Email contact isabelle.catrymartin@sia-partners.com
-
Isabelle Morin
Managing Director | Montréal
Isabelle is a Managing Director at Sia, with extensive experience in business transformation and human resources, and cross-sector expertise in change management, HR function evolution, and governance.
-
Jake Sullivan
Managing Director, Technology Advantage | Seattle
Jake is a Seattle-based Managing Director in Technology Advantage at Sia. He graduated from Gonzaga University and brings over 15 years of consulting leadership. He now leads go-to-market strategies, business development, and large-scale digital and operational transformation programs for major technology and consumer brands.
- IT Strategy & Digital Transformation
- Growth & Innovation
- Business Transformation
- Business Strategy & Corporate Planning
-
Jean Trzcinski
Managing Partner | Brussels
Jean is Managing Partner and Climate Analysis Global Lead at Sia Partners. In charge of several business units for global transformations related to Sustainability and low Carbon strategies, AI/DS, Risk, Pricing & Revenues Mgt, Innovation & Strategic Roadmap.
- Mobility & Logistics
- Supply Chain & Logistics
- Growth & Innovation
- IT Strategy & Digital Transformation
- Energy, Resources & Utilities
-
Jean-Baptiste Hecquet
Managing Director, Energy, Utilities and Environment | Paris
Jean-Baptiste is a Managing Director in Energy, Utilities & Environment at Sia. After graduating from CentraleSupélec and ESCP, he joined in 2009. He now leads the global Energy & Environment strategy, focusing on the energy transition and the strategic transformation of the oil and gas industry.
Linkedin Email contact jean-baptiste.hecquet@sia-partners.com
- Energy, Resources & Utilities
- Electricity
- Gas
- Oil
- Energy Services
- New Offers in Energy, Utilities and Environment
- Smart Grids
- Audit
-
Jean-Frederic Chardon
Partner, Sia AI | Paris
Jean Frédéric is a Partner driving the strategic business development of Sia’s SaaS solutions across all industries.
Linkedin Email contact jean-frederic.chardon@sia-partners.com
