Governance

Trending

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.

Linkedin Email contact sandrine.carreau@sia-partners.com
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.

Linkedin Email contact alix.deguibert@sia-partners.com

All our leaders

Use the below filters to find experts in your country or your industry.

Selma El Mouissi

Managing Director | Paris

Selma is a Managing Director in charge of Sia's Experience Design practice, focused on transforming and elevating customer, employee, and team’s experiences relying on user-centric approaches.

Linkedin Email contact selma.elmouissi@sia-partners.com
- Marketing & Customer Experience
Shahin Mani

Partner, Business Transformation | New York

Shahin is a Partner in Consumer & Retail based in New York. With 20 years of experience, including at Accenture, he specializes in AI-driven digital transformation across marketing & customer engagement. He focuses on unlocking growth through data, emerging technologies, and strategic partnerships.

Linkedin Email contact shahin.mani@sia-partners.com
Simar Gill

Associate Partner, Financial Services | Toronto

Associate Partner in Toronto, Simar leads our North American Financial Services Capital Markets area. With 20+ years in Big 4 and Tier-1 banks, he advises on transformation, data, and AI-enabled compliance, specializing in regulatory readiness and post-trade/trading infrastructure modernization.

Linkedin Email contact simar.gill@sia-partners.com
Sohail Thaker

Managing Partner | Calgary

Sohail is the Managing Partner of the Calgary and Vancouver offices of Sia Partners. Sohail has a MBA (International Business), is a Project Management Professional (PMP), and a Certified Management Consultant (CMC).

Linkedin Email contact sohail.thaker@sia-partners.com
Sophie Henry

Managing Director | Montreal

Sophie is a Managing Director helping organizations transform and innovate through the use of human-centric approaches, Design Thinking and collective intelligence.

Linkedin Email contact sophie.henry@sia-partners.com
Sophie Le Goff

Partner, Insurance & Compliance | Paris

Sophie is a Partner of Sia Partners in both the Insurance and Compliance practices.

Linkedin Email contact sophie.le-goff@sia-partners.com
- Insurance
- Compliance in the Insurance Sector
Stéphanie Ruaudel

Managing Director | Paris, France

Stéphanie is a Managing Director based in Paris, specializing in digital transformation, project management, and change management in the energy and utilities sector. She helps organizations optimize processes, enhance CRM, and drive agile transformation initiatives.

Linkedin Email contact stephanie.ruaudel@sia-partners.com
Suzanne Hader

Managing Director, Sia Experience | New York

Suzanne is a Managing Director in New York at Sia Experience. With 15+ years of experience, including CMO roles at John Hardy and Halston, she builds scalable growth engines—aligning brand, media, and data to drive continuous insight and measurable performance.

Linkedin Email contact suzanne.hader@siaxperience.com
Thomas Bruinsma

Managing Director, Life Sciences & Healthcare | Maastricht

Thomas is a Managing Director in the Netherlands within the Life Sciences & Healthcare BU. Expert in operational excellence and digital transformation, he leads international engagements to digitize production and quality processes for global healthcare and life sciences companies.

Linkedin Email contact thomas.bruinsma@sia-partners.com
Thomas Graffagnino

Associate Partner, Marketing & Customer Strategy, Luxury & Lifestyle | Paris

Thomas is a Managing Director in our Marketing & Customer Experience practice. He leads ideation and the development of innovative frameworks & solutions for our FMCG customers.

Linkedin Email contact thomas.graffagnino@sia-partners.com
- Marketing & Customer Experience
Thomas Lopez Uroz

Associate Partner, Technology Advantage | Paris

Thomas is a Paris-based Associate Partner at Sia. He supports large organizations in their IT, data, and AI transformations. He leads the definition and deployment of strategic roadmaps, operational models, and transformation programs for the utilities, industrial, and tech sectors.

Linkedin Email contact thomas.lopez@sia-partners.com
Thomas Saunder

Managing Partner, Uside | Paris

Thomas oversees the general management of Uside. Graduated from ENS Ulm and HEC Paris, he was Partner Executive in charge of Microsoft at Capgemini, then Managing Director of the Global Practice Microsoft at Inetum. He now supports leading firms in the human challenges of their transformation.

Linkedin Email contact thomas.saunder@uside.fr