# Calogena

**Source:** https://www.startuphub.ai/startups/calogena
**Profile type:** Startup

> Calogena is a French nuclear startup developing small modular reactors to supply low-carbon heat to district heating networks.

## About

Calogena develops 30-thermal-megawatt, water-cooled small modular reactors (SMRs) based on pool-type research reactor technology. Designed to decarbonise district heating networks, its reactors operate at low temperature and pressure with a compact footprint to provide safe, price-stable, and low-carbon heat.

## Key facts

- **Slug:** calogena
- **Website:** https://calogena.com
- **Founded:** 2021-01-01
- **Operating status:** Active
- **Total funding:** $43M
- **Sectors / tags:** Nuclear Energy, Cleantech, Energy

## StartupHub.ai scores

- **Ahrefs DR:** 19/100
- **Effective DR:** 43/100
- **Agent Readiness:** C (62/100)
- **Site Speed:** 89/100
- **Data Trust:** 66/100

## Funding rounds

| Date | Round | Amount | Lead investors |
| --- | --- | --- | --- |
| 1 Nov 2026 | [Grant](https://www.startuphub.ai/investment_rounds/calogena-grant-2026) | $43M | [EU Innovation Fund](https://www.startuphub.ai/investors/eu-innovation-fund) |

## Tech stack

Detected on calogena.com, last scanned 2026-11-09.

- **Frontend:** jQuery, Bootstrap
- **SEO:** Yoast SEO
- **CMS / Builders:** WordPress
- **Email provider:** Microsoft 365
- **Video / media:** Vimeo

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## Community reviews

Community reviews below were gathered from public sources into one place. Each quote is copied word for word and links to where it was posted.

- **Reddit r/nuclear** | juhamac | 2026-11-05 | positive | highlighted endorsement
  > "Calogena has been awarded the first European grant for a commercial nuclear project. The initiative involves a small reactor to be located at the Tricastin nuclear site in the Drôme region, intended for district heating."
  > Source: https://www.reddit.com/r/nuclear/comments/1xorujq/the_first_european_commission_funding_for_a/