How much funding has Cartesian raised?

Cartesian has raised €2.7M (last round 23 Feb 2024).

What was Cartesian's latest funding round?

Cartesian's most recent disclosed round was a funding round of €2.0M, announced 23 February 2024.

What is Cartesian's revenue?

Cartesian reported €465K in turnover for FY2025, per official registry filings.

The Index cartesian.energy

Company · NO

Cartesian

A company developing a huge biological battery

Raised: EUR 2.7M
Last round: 23 Feb 2024
Momentum: Quiet
Events: 1

Updated 29 Jul 2026 · Verified 28 Jul 2026

Capital

1 round · 2024

No new round recorded in 29 months.

23 Feb 2024
Funding round
€2.0M
Cumulative €2.0M

Amounts in EUR, converted at the ECB rate on the event date. Every figure links to its source.

Activity

1 event

Funding23 Feb 2024EUR 2.0M
Thermal-energy-storage spinout Cartesian raised NOK 23 million in a funding round and separately received NOK 8 million in R&D funds from the Research Council of Norway and Innovation Norway.
▸Source: arntzen.no
Read at arntzen.no

People

1 person

Alexis Sevault
Founder

Registry

FY2025

Year	Turnover	Net profit	Headcount	Taxes paid	Source
2025	€465K	€-1.4M	8	€0	Brreg (NO) · NOK

Raised €2.7M to date · FY2025 turnover €465K · 8 employees

≈€60K turnover per employee (FY2025).

Questions

5 answers

What does Cartesian do?: A company developing a huge biological battery
Where is Cartesian headquartered?: Cartesian is based in Norway.
How much funding has Cartesian raised?: Cartesian has raised €2.7M (last round 23 Feb 2024).
What was Cartesian's latest funding round?: Cartesian's most recent disclosed round was a funding round of €2.0M, announced 23 February 2024.
What is Cartesian's revenue?: Cartesian reported €465K in turnover for FY2025, per official registry filings.

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