Key facts
- It has raised $1.9M; the latest was Accelerator/Incubator in Sep 2025.
- Notable investors include Amazon Launchpad Sustainability Accelerator, Devico, Eviny Ventures, Kongsberg Innovation, SINTEF Venture — 7 tracked in total.
- Status: Privately Held (backing).
- ·The complete investor list — 7 names
- ·Watchlist + deal alerts for Cartesian
- ·The full record, as it builds
Funding rounds
No funding rounds for Cartesian are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About Cartesian
Developer of a compact, modular thermal battery designed to store heat and cold efficiently in commercial buildings, district energy networks, and industrial systems. The company offers high-density energy storage using phase change materials and reversible thermal cycles, enabling building operators, utilities, and industrial users to optimize energy use, balance grid load, and reduce reliance on costly infrastructure upgrades.
- Sector
- Energy
- HQ
- Trondheim, Norway
- Founded
- 2023
- Employees
- 10
- Website
- cartesian.no/
- Ownership
- Privately Held (backing)
Cartesian doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in Cartesian shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on Cartesian in its N-PORT filings yet. We sweep new filings monthly.