Sia Partners Welcomes a Strategic Minority Investment from Blackstone

Founder and Chief Executive Officer, Matthieu Courtecuisse, retains a significant majority stake in Sia and will continue to lead the Company. It marks the Company’s first partnership with a financial investor since its inception.

Founded in 1999, the Company has become a leading player in the global consulting market, recognised for its deep expertise in strategy, management consulting and AI, and ability to leverage technology and data to drive business transformation. With 3,000 employees across 20 countries and 50 offices, the Company works with over 1,000 clients, including Fortune 500 and major tech clients, across a diversified base of end markets, within sectors such as Energy, Banking, Consumer, Luxury and Retail and TMT. Projects range from significant strategic transformation, change management, operational analysis, post-merger integration and innovation.  

Sia continues to deliver impressive results, achieving close to €500 million in revenue, 40% of which is in France and 30% in the United States. The partnership with Blackstone will support Sia’s acceleration of its expansion across the U.S. market, as well as support strategic M&A.

Matthieu Courtecuisse, Chief Executive Officer, Sia Partners, said: “We are thrilled that Blackstone is investing in our consulting firm as a minority partner. This partnership reflects a shared conviction in our strategic consulting model augmented by AI and design, as well as the common ambition of a leadership position in a market that is experiencing a new phase of consolidation.

“Today’s announcement is also a testament to the hard work of everyone at Sia, our 25 years of organic growth and the opportunity that lies ahead. With Blackstone’s resources we can grow our organic offerings, accelerate our international expansion plans and develop our ability to innovate, bringing our premium offering to more clients around the world.”

Lionel Assant, Global Co-Chief Investment Officer, Blackstone, said: “Sia is a fast-growing leader in the space, benefitting from a differentiated service offering given their deep expertise across industry defining megatrends such as energy transition and AI. We look forward to partnering with Matthieu and the wider team to drive long-term growth by leveraging our global footprint, scale and expertise.”

Alongside the transaction, the Company is also pleased to announce the appointment of Sandrine Carreau as President & COO, alongside Matthieu Courtecuisse, Founder & CEO. Sandrine Carreau has been with Sia Partners for 12 years, is based in Paris, and was previously in charge of Strategy and M&A, Marketing, and ESG.

J.P. Morgan SE acted as Exclusive Financial Adviser and Sole Placement Agent, and A&O Shearman acted as legal advisor, to Sia Holding with respect to the strategic minority investment from Blackstone.

Freshfields acted as legal advisor and Eight Advisory as legal transaction services advisor to Blackstone.