C
Calogena
Carbon-free heat generation using small modular nuclear reactors for efficient and safe energy solutions
About Calogena
Calogena is pioneering a carbon-free heating solution through the development of Small Modular Reactors (SMRs), specifically designed as small water nuclear boilers. These reactors are based on well-established and proven technologies, offering a compact, safe, and simple design. Operating at low pressure and temperature, Calogena's SMRs provide direct use of the heat produced, minimizing the need for auxiliary systems and enhancing safety and simplicity compared to traditional reactors. The company's solution addresses the high CO2 emissions associated with conventional heat production methods, such as gas-fired boilers and coal-fired power stations, which are significant contributors to global greenhouse gas emissions. By leveraging nuclear energy, Calogena's modules achieve a carbon footprint of approximately 6g of CO2 per kWh of electricity, significantly lower than traditional methods. Each module is capable of generating 30 MW of thermal power, sufficient to power 12,000 households, making it a viable option for reducing the environmental impact of heating, an energy-intensive sector responsible for 50% of energy consumption in Europe. Calogena's business model focuses on providing a sustainable and efficient alternative to fossil fuel-based heating, targeting markets with high energy demands and environmental concerns. The company generates revenue by offering these advanced nuclear heating solutions to clients seeking to reduce their carbon footprint and enhance energy efficiency.
Source: Dealroom company dataAt a glance
- Status
- Operational
- Founded
- 2021
- Headquarters
- Aix-en-Provence, France
- Employees
- 56
- Open positions
- 3
- Dealroom signal
- 56.5/100
- Industry
- Energy
- Sector
- Energy, Sustainable Development Goals, Nuclear Fission, Climate Tech, radar de l'innovation, slush24, observatoire greentech, observatoire industrial tech
- Business model
- Manufacturing
- Client focus
- b2b
Knowledge graph
More headlines
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Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| GRANTOther financing | Mar 2026 | $53M | — | France 2030 | ↗ |
| EARLY VCOther financing | Mar 2026 | $57M | $229M | Banque des Territoires · Groupe Snef · Gorgé SA | ↗ |
Growth signals
Latest recorded traffic for Calogena is 2.3K monthly website visits, down 47.7% over the last three months. Calogena's team grew 133.3% over the past year.
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Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed1 investor entered at this stage
France 2030
Series A3 investors entered at this stage
Banque des Territoires
Groupe Snef
Gorgé SA
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about Calogena on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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