BackLuxembourg, 24 June 2026 – Marguerite, a pan-European infrastructure investment firm, announces a planned leadership transition with Nicolás Merigó, CEO and Managing Partner, leaving the CEO position and taking on a new Chairman role.
Michael Dedieu, Managing Partner and Co-Head of Investments and David Harrison, Managing Partner and CFO, will become Co-CEOs of Marguerite. Both have been with the firm since its foundation in 2010.
The transition, effective as of 15 June 2026, reflects the firm’s long-standing approach to shared leadership across its senior management team. In parallel, effective as of 1 July 2026, Bill Pierson, Managing Partner and Co-Head of Investments, will retire but will continue his role as a member of the Investment Committees of Marguerite II and III.
“After 15 years of leading Marguerite, I am proud of what we have achieved together,” said Nicolás Merigó. “David and Michael have both been with Marguerite since its foundation and have played an important role in shaping the firm, its culture and its investment approach. I would also like to thank Bill Pierson for his long-standing contribution and continued commitment to Marguerite.”
The appointment of Michael Dedieu and David Harrison as Co-CEOs comes as Marguerite continues to deploy capital, focusing on sustainable, capital-intensive assets that support Europe’s energy transition and long-term resilience.
“Marguerite has always prided itself on a model in which leadership is distributed across a strong senior management team,” said David Harrison. “This transition is a natural next step for the firm, and we will continue to build on the strategy, discipline and values that have guided Marguerite since its creation.”
Michael Dedieu added that continuity of strategy will remain central to the firm’s next phase of development.
“Together with David and the broader leadership team, I look forward to continuing Marguerite’s investment strategy across energy renewables, digital, transport, circular economy and water infrastructure,” said Michael Dedieu.
The change follows the promotions of Pilar Gomez and Guillaume Rivron to Managing Partners, and Fabio Siragusa to Partner, who, together with Adrian Pawelec, ensure continuity in Marguerite’s leadership structure and maintain the strength and depth of the management team.
Since its founding in 2010, Marguerite has invested over €2 billion in 47 infrastructure investments across 16 European countries, with 23 exits. Marguerite continues to prioritise investments that support environmental sustainability and align with the Paris Agreement. The firm is a signatory of the Net Zero Asset Managers initiative, reinforcing its long-term commitment to climate goals.
Marguerite is a pan-European investor in long-life greenfield and brownfield expansion infrastructure.
Our funds seek out capital-intensive, sustainable investment opportunities with a particular focus on four sectors: (1) Energy & renewables, (2) Digital transformation, (3) Transport, and (4) Circular economy and Water.
Marguerite manages four European infrastructure funds, with our most recent being Marguerite III, and we’ve deployed in excess of €2 billion into projects designed to address the changing infrastructure landscape in Europe by integrating ESG principles and creating positive change for society.
Marguerite III benefits from support from the European Union under the InvestEU Fund.
From our origins in 2010 as an independent infrastructure investment manager backed by the European Investment Bank and the main European national promotional banks, we have evolved into a fund manager dedicated to generating value for investors while integrating robust ESG screening as part of our eligibility criteria and continuously measuring the positive impact of our investments. We are signatories of the Net Zero Asset Managers (NZAM) initiative and commit to aligning our portfolio with net zero emissions pathways by 2050 or sooner.
Our team is based in Luxembourg, Paris and Milan.