MoonWatt
MoonWatt is a climate tech company in Amsterdam, Netherlands, founded in 2024. It has raised $8.3M across 1 round, most recently an $8.3M Seed in March 2025.
Technology for a solar-powered civilisation
- Headquarters
- Amsterdam
- Employees
- 11–50
- Founded
- 2024
- Business Model
- B2B
- Website
- moonwatt.com
- Total Funding
- $8.3M
- Last Round
- $8.3M SeedMar 2025
- Rounds
- 1
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
Indexed holds 1 funding round and 5 investors for this company. The full record is or through the API.
About
Moonwatt is a technology company on a mission to accelerate the global energy transition away from fossil fuels and toward a sustainable future. It delivers next-generation Battery Energy Storage Systems powered by advanced sodium-ion cell chemistry, engineered for hybrid solar plants. Its passive-cooled, modular, low-voltage coupled battery integrates seamlessly with solar plants, cutting costs, boosting performance, and scaling from kilowatts to gigawatts, serving retrofit and greenfield utility-scale solar plants, commercial and industrial sites, and microgrids.
Summary
It lists 11–50 employees. It has raised $8.3M in total across 1 round, most recently a $8.3M Seed round in Mar 2025. Investors include Daphni, LEA Partners and Founders Future.
Tech & App Stack
3 technologies & apps tracked
Every product and vendor across these categories, with where each signal came from.
Create a free account with 25 free credits every month, no card needed, to unlock the full tech & app stack, funding history, and valuations.
Funding History
Mar 2025
Investors
Similar Companies
Sempra Infrastructure develops, builds, operates, and invests in infrastructure serving customers...
AI infrastructure company building renewable-powered data centers and cloud compute optimized for...
Self-driving cars.
Green steel company using hydrogen and renewable electricity to decarbonize steel production. For...
Appears in
Your company? Embed this profile
Add the live badge to your site — it stays current as your funding data updates.
<a href="https://indexed.vc/companies/moonwatt"><img src="https://indexed.vc/api/badge/company/moonwatt" alt="MoonWatt on Indexed.vc" width="260" height="76" /></a>