Energy Dome

Long-Duration Energy Storage at Scale

Milan, Italy · Founded 2020 · $142.0M raised

Headquarters
Milan
Employees
51–200
Founded
2020
Business Model
B2B
Total Funding
$142.0M
Last Round
$60.0M Extension RoundJul 2023
Rounds
4

Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.

About

Energy Dome is an Italian clean-tech company that designs, manufactures, and deploys the CO2 Battery, a long-duration energy storage system using a closed carbon-dioxide thermodynamic cycle to deliver 8 to 24 hours of firm, dispatchable grid-scale power. Founded by CEO Claudio Spadacini with co-founders Dario Rizzi and Francesco Oppici, the company serves utilities, grid operators, and large energy users such as Google and Alliant Energy, and is headquartered in Milan, Italy, with a US headquarters in Cambridge, Massachusetts and additional offices in Piacenza, Melbourne, Mumbai, and Santiago.

Summary

Energy Dome is a Clean Tech company based in Milan, Italy, founded in 2020. It has raised $142.0M in total across 4 rounds, most recently a $60.0M Extension Round in Jul 2023. Investors include 360 Capital, Japan Energy Fund and Barclays Climate Ventures.

Tech & App Stack

8 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

Extension RoundExtension RoundJul 2023
$60.0M

Sign up to see all 4 events

Funding: Series A through Extension Round. Amounts, valuations, and investors where available.

Investors

Similar Companies

Base Power

Home battery and energy company that provides distributed power storage to reinforce the electric...

Austin, United States51–200Clean Energy, Clean Tech
Series DTotal funding$2.3BAug 2026
Enpal

Germany's leading integrated renewable energy company offering solar panel subscriptions, battery...

Berlin, Germany1001–5000Clean Tech, Renewable Energy
Venture RoundTotal funding$769.0MApr 2025
SunPowerIPO

SunPower delivers all-in-one residential solar solutions, pairing panels and energy storage with ...

Orem, United States501–1000Clean Energy, Climate Tech
Venture RoundTotal funding$419.0MApr 2026
Inspiration Mobility

Inspiration Mobility helps commercial fleets transition to electric vehicles, providing tailored ...

51–200Clean Tech, Electric Vehicles
Venture RoundTotal funding$415.0MMay 2022
6K

6K develops microwave plasma production systems and engineered materials for battery, additive ma...

North Andover, United States51–200Advanced Materials, Manufacturing
Series ETotal funding$370.3MSep 2024
Field

Field develops, builds, and optimizes grid-scale battery storage projects that make power grids a...

London, United Kingdom51–200Clean Energy, Energy Storage
Corporate RoundTotal funding$334.0MJul 2023

Your company? Embed this profile

Add the live badge to your site — it stays current as your funding data updates.

Energy Dome on Indexed.vc
<a href="https://indexed.vc/companies/energy-dome"><img src="https://indexed.vc/api/badge/company/energy-dome" alt="Energy Dome on Indexed.vc" width="260" height="76" /></a>