Calogena
Calogena

Calogena

Measured by AhrefsDR19Ahrefs DR: 19/100. Below median. Measured by Ahrefs. Median 44.Measured by StartupHub.aieDR43Effective DR: 43/100. Below median. Measured by StartupHub.ai. Median 68.Measured by StartupHub.aiAgent62Agent Readiness: 62/100. Top 25%. Measured by StartupHub.ai. Median 41.Measured by Google PageSpeedSpeed89Site Speed: 89/100. Top 25%. Measured by Google PageSpeed. Median 62.

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

2021ActiveFrance

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

Website
calogena.com
Founded
2021
Total funding
$43M (Grant)
Business model
B2B

Funding rounds

Funding rounds raised by Calogena
DateRoundAmountLead investors
1 Nov 2026Grant$43MEU Innovation Fund

Tech stack

Detected on calogena.com, last scanned 9 Nov 2026.

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

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Frequently asked

Is Calogena trustworthy and reputable?

StartupHub's Data Trust & Reputation score for Calogena is 66 out of 100, a generally safe rating, based on site security posture, privacy practices, malware and phishing checks, and public reputation signals.

How much funding has Calogena raised?

Calogena has raised a total of $43M in funding. The most recent round on record is Grant.

SEC filings, insider activity, nonprofit links and pay benchmarks for Calogena:

Company details: from public sources. Funding: no announced round on file. Ownership: not yet claimed by the company. Scores: measured by named tools; each links to its method. Our rules