Meridiam: A History of Global Infrastructure Investment
Founded in 2005, Meridiam has evolved from a specialized investment firm into a global leader in public infrastructure. Established by Thierry Déau—the former managing director of Egis Projets and head of Aecom Global Technology—the company was designed to create a secure framework for long-term savings while financing essential public works. With early operational and financial backing from the Crédit Agricole Group and AECOM Technology, Meridiam has spent nearly two decades bridging the gap between private capital and public necessity.
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Key Facts
- Founded: 2005 by Thierry Déau.
- Assets Under Management: Nearly €15 billion as of September 2021.
- Core Focus: Public infrastructure, energy transition, and sustainable impact investments.
- Sustainability Standard: New funds are classified under SFDR Article 9, the highest European standard for sustainable finance.
- Global Reach: Major projects across Europe, North America, Africa, and Turkey.
2005–2009: Foundations and Early Expansion
Meridiam began its journey by establishing the Meridiam I fund. By 2006, the firm secured its first two major projects: the Limerick Tunnel in Ireland and the A5 highway in Austria, both of which became operational in 2010. The company quickly diversified its portfolio, moving into healthcare in 2007 with the Fulcrum LIFT project in the United Kingdom, a program sponsored by the British Health Ministry.
Growth accelerated in 2008 when a new fundraising round brought the Meridiam I fund size to €548 million, enabling a stake in Poland's A2 Motorway (Phase I). By 2009, the firm expanded aggressively across Europe—winning projects in Germany, Slovakia, and France—and entered the United States market with the Port of Miami Tunnel and the North Tarrant Express Highway in Texas. This rapid success led Infrastructure Investor to name Meridiam the European Fund of the Year in 2009.
2010–2013: Scaling and Strategic Independence
Between 2010 and 2011, Meridiam expanded its footprint in North America and Europe through the Meridiam Infrastructure Europe II and North America II funds. Key projects from this era include the Montreal University Hospital Research Center, the Long Beach Courthouse in California, and the South-Europe Atlantique High-Speed rail line in France. These achievements earned the firm the global Fund of the Year award from the Infrastructure Journal in 2011.
A pivotal shift occurred in 2012 when Meridiam established a new supervisory board and modified its ownership structure. This move ensured that the majority of shares were held by partners and employees, though AECOM maintained a 30% stake as of 2013. This period also saw the company's investment capacity rise to $2.3 billion.
Meridiam also contributed to the financial evolution of the industry. In 2013, it launched Europe's first project bond without credit enhancement to finance student housing at the University of Hertfordshire. Furthermore, a partnership with the EDHEC Risk-Institute helped establish infrastructure as a distinct asset class, a position later adopted by the European regulator EIOPA.
2014–2019: African Development and Energy Transition
Starting in 2014, Meridiam pivoted toward the African continent, launching the Meridiam Infrastructure Africa Fund with a target of €300 million over 15 years. The European Investment Bank supported this initiative with a €30 million investment in 2015. The firm further expanded its global reach by opening an office in Istanbul and investing in four Turkish hospitals, as well as opening an office in Dakar in 2016.
In France, Meridiam led the Calais Port 2015 project, the first French public infrastructure project under the Juncker Plan. Aligning with the 2015 Paris Climate Conference, the company also launched a dedicated fund for energy transition projects, signaling a long-term commitment to sustainable infrastructure.
2020 and Beyond: Sustainable Impact and Major Acquisitions
The early 2020s marked a period of massive scaling and strategic acquisitions. Meridiam partnered with Veolia in a takeover bid for SUEZ and later became the majority shareholder of Voltalis, a leader in electricity consumption management. In the Czech Republic, the firm entered a 28-year, €600 million public-private partnership (PPP) for the D4 highway.
In 2021, Meridiam expanded its African rail presence by taking a 40% stake in Setrag, the operator of Gabon's "Transgabonais" railway. Simultaneously, it launched the West Guyana Power Plant (CEOG), currently the world's largest power plant project utilizing hydrogen to store intermittent renewable energy.
By September 2021, Meridiam raised over €5 billion for sustainable and impact investments, bringing its total assets under management to nearly €15 billion. Recent activities include building Togo's second solar power plant (2023), increasing ownership in New York's LaGuardia Airport Terminal B (2024), and launching a fiber infrastructure project in Alabama (2024).
| Period | Key Focus | Notable Projects/Milestones |
|---|---|---|
| 2005–2009 | Foundation & European Entry | Limerick Tunnel, A5 Highway (Austria), Port of Miami Tunnel |
| 2010–2013 | Scaling & Independence | Montreal University Hospital, First European project bond |
| 2014–2019 | Africa & Sustainability | Infrastructure Africa Fund, Calais Port 2015, Energy Transition Fund |
| 2020–Present | Impact & Global Scale | SUEZ acquisition, West Guyana Power Plant, SFDR Article 9 funds |
Frequently Asked Questions
Who founded Meridiam and why?
Meridiam was founded in 2005 by Thierry Déau. It was established to finance public infrastructure and create a secure investment framework for long-term savings.
What is the significance of SFDR Article 9 for Meridiam?
SFDR (Sustainable Finance Disclosure Regulation) Article 9 is the highest European standard for sustainable development. All of Meridiam's new funds are classified under this article, reflecting their commitment to sustainable and impact investments.
Which major projects has Meridiam completed in Africa?
Key African initiatives include the Meridiam Infrastructure Africa Fund, a 40% stake in Gabon's Setrag railway (the Transgabonais), and the construction of Togo's second solar power plant.
How has Meridiam's ownership structure changed over time?
Originally supported by Crédit Agricole and AECOM, Meridiam modified its structure in 2012 to a supervisory board where the majority of shares are held by partners and employees. As of 2013, AECOM held a 30% ownership stake.
What is the West Guyana Power Plant (CEOG)?
Launched in September 2021, the CEOG is currently the largest power plant project in the world that stores intermittent renewable energies using hydrogen.