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Meridiam

Meridiam

Paris, France·Founded 2005·meridiam.com

Meridiam is an independent Paris-based investment manager founded in 2005 by Thierry Deau, specialising in the development, financing and long-term management of sustainable public infrastructure. It invests through a 25-year buy-and-hold model across transport, energy transition, social and digital infrastructure in Europe, North America and Africa, and has been involved in more than 130 projects. Meridiam manages over 23 billion US dollars of assets and is majority owned by its founder and employees, with Samsung Life Insurance holding a minority stake.

AUM
€21.2B
Funds
8
vintages 2008–2025
Portfolio
65
Exits
0

Meridiam is a Paris private equity firm with €21.2B AUM and 65 active companies.

Key takeaways
  • ·Top sector focus: Mobility (32% of portfolio).
  • ·Fund cadence: ~2Y between vintages · last raise 2025.

Sector breakdown

65 companies
Mobility
21 · 32%
Energy
14 · 22%
Telecom
5 · 8%
ClimateTech
5 · 8%
Healthcare
5 · 8%
Logistics
3 · 5%
Industrials
1 · 2%
SaaS
1 · 2%

Geography breakdown

27 geographies
France
12 · 18%
US
10 · 15%
Turkey
4 · 6%
United States
3 · 5%
Germany
3 · 5%
Senegal
3 · 5%
Gabon
3 · 5%
Jordan
2 · 3%

Key facts

HQParis, France
Founded2005
Employees400+

Recent exits

No exits recorded yet.

Coverage notes

8 funds tracked, 65 portfolio companies (65 active · 0 realized). Verified weekly from public filings and deal announcements.

Funds & portfolio

Every fund Meridiam has raised, with its portfolio companies. Hand-checked from public filings.

8 funds
Meridiam Infrastructure North America IV
Infrastructure2025€1.6B14 assets

Unrealized

14 held
Meridiam Green Impact Growth Fund
Impact2020€440M9 assets

Unrealized

9 held
CompanyEntry
Blyyd
France
2026
CEOG West Guyana Power Plant
ClimateTech · France
2019
Chargepoly
ClimateTech · France
2026
Exoes
Industrials · France
2024
Exoès
France
2024
iwell
Netherlands
2025
Oxand
SaaS · France
2025
Togo Solar Power Plant
Energy · Togo
2019
Voltalis
ClimateTech · France
2020
Meridiam Infrastructure North America III
Infrastructure2017€1.3B5 assets

Unrealized

5 held
CompanyEntry
Alberta Fiber Networks (A-NET)
Telecom · Canada
2022
Central 70 (C-70 Highway)
Mobility · US
2017
Conrac Solutions
Mobility · US
2023
Fresno State University Central Utility Plant
Energy · US
2021
University of Iowa Utility System
Energy · US
2020
Meridiam Infrastructure Europe IIIHarvesting
Infrastructure2016€1.3B16 assets

Unrealized

16 held
CompanyEntry
A465 Road
Mobility · UK
2020
A49 Motorway
Mobility · Germany
2020
Amman Queen Alia International Airport
Mobility · Jordan
2018
Aragon Roads
Mobility · Spain
2024
Ausol (Autopista del Sol)
Mobility · Spain
2019
Calais Port 2015
Logistics · France
2015
D4 Motorway
Mobility · Czech Republic
2021
Elazig Integrated Healthcare Campus
Healthcare · Turkey
2016
Espoo Schools and Day Care Centers
Education · Finland
2020
Firenze Tramway
Mobility · Italy
2024
Gaziantep Hospital
Healthcare · Turkey
2021
German Fibre with Vodafone
Telecom · Germany
2024
Great Sea Interconnector
Energy · Greece
2024
NeuConnect Interconnector
Energy · Germany
2022
Norscut Highway
Mobility · Portugal
2016
Olsztyn Waste to Energy Plant
Energy · Poland
2019
Meridiam Infrastructure Africa Fund
Infrastructure2015€546M9 assets

Unrealized

9 held
CompanyEntry
Biovea Biomass Plant
Energy · Ivory Coast
2021
BTE Renewables
Energy · South Africa
2023
Bus Rapid Transit Dakar
Mobility · Senegal
2022
Kinguele Aval Hydropower Plant
Energy · Gabon
2021
Nouakchott Port
Logistics · Mauritania
2019
Owendo Mineral Port
Logistics · Gabon
2017
Scaling Solar Kael (Touba)
Energy · Senegal
2019
Scaling Solar Kahone
Energy · Senegal
2019
Setrag Transgabonais Railway
Mobility · Gabon
2021
Meridiam Infrastructure North America IIHarvesting
Infrastructure2012€966M6 assets

Unrealized

6 held
CompanyEntry
CHUM Montreal Research Centre
Healthcare · Canada
2010
LaGuardia Central Terminal B
Mobility · US
2016
Long Beach Courthouse
Business Services · US
2010
North Tarrant Express
Mobility · US
2009
North Tarrant Express Segment 3
Mobility · US
2013
Port of Miami Tunnel
Mobility · US
2009
Meridiam Infrastructure Europe IIHarvesting
Infrastructure2009€1.0B2 assets

Unrealized

2 held
CompanyEntry
Adana Integrated Healthcare Campus
Healthcare · Turkey
2014
Yozgat Hospital
Healthcare · Turkey
2015
Meridiam Infrastructure IRealized
Infrastructure2008€548M4 assets

Unrealized

4 held
CompanyEntry
A2 Motorway Poland
Mobility · Poland
2008
A5 Motorway Austria
Mobility · Austria
2006
Limerick Tunnel
Mobility · Ireland
2006
South Europe Atlantic High-Speed Rail
Mobility · France
2010

Frequently asked questions

How many portfolio companies does Meridiam have?
Meridiam has 65 active portfolio companies and 8 funds tracked on GP Intel.
Where is Meridiam headquartered?
Meridiam is headquartered in Paris, France.
What is Meridiam's assets under management?
Meridiam manages approximately €21.2B in assets under management.
When was Meridiam founded?
Meridiam was founded in 2005.
What sectors does Meridiam invest in?
Meridiam invests across Energy, Industrials, Healthcare.
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Last updated September 2026 · Sourced from public filings · Report an issue