Deploying
climate infrastructure .

We are a mission-driven decarbonization company.

What we do

300ppm is the climate and sustainability investment program of ARB Investment Partners, Crillon Holding (Lux) and affiliated entities. 300ppm GmbH serves as Investment Adviser of certain investment entities and also  directly conducts investments, particularly related to the energy transition as well as sustainable food security.

Building on earlier investments, 300ppm was founded by Henri de Bokay together with partners including Emmanuel Birba and Ali Adoudou after they met while working on climate change solutions at Harvard and MIT.

The primary objective is to support the energy transition by applying strict financial criteria to investments in companies deploying existing technologies to mitigate emissions. We see decarbonisation primarily as an unprecedented technology and infrastructure development challenge, requiring a multi-disciplinary approach that cuts across traditional silos in venture capital, private equity, debt, public markets and government partnerships.

Building on Caroline de Bokay’s interest in the related field of sustainability in food supplies, 300ppm has also begun to invest in food-related trading activities.

Our Potfolio

The portfolio of 300ppm and its affiliates inures the following current and past investments:

Our Team

Henri de Bokay

Chairman and Founding Partner

30+ years of experience in infrastructure finance and real estate private equity.

Founded ARB Investment Partners, a Real Estate Private Equity firm. Previously JP Morgan, Morgan Stanley.

Henri holds an MBA from INSEAD and is a Harvard Advanced Leadership Initiative Fellow.

Chairman and Founding Partner
30+ years of experience in real estate investment...

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Ali Adoudou

Founding Partner and Head of Technology

20+ years of experience in the oil & gas industry.

Previously lead Brazilian deepwater operations at Transocean.

Ali is an MIT Sloan Fellow, where he received his MBA.

Founding Partner and Head of Technology
20+ years of experience in the oil & gas industry...

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Emmanuel Birba

Founding Partner and Head of Investor Relations

15+ years of experience in infrastructure private equity.

Previously launched a USD 1.2 billion geothermal facility in Ethiopia as an investment director and CFO. 

Emmanuel holds an MPA from the Harvard Kennedy School.

Founding Partner and Head of Investor Relations
15+ years of experience in infrastructure private equity...

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Investors

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Our anchor investors range from family offices to high net worth individuals. Beyond their capital contributions, they also provide valuable expertise and guidance in technology, and capital markets. They are all united in their dedication and goal of advancing the energy transition towards a carbon-free and sustainable future.