# ElleThermo funding: rounds and investors

> ElleThermo has raised $2.5M across 1 round since 2024. Investors include Mitsubishi UFJ Capital, Mizuho Capital and Keio Innovation Initiative.

Source: https://millionrounds.com/company/ellethermo (Millionrounds; every figure on the page links to its filing or article)

Japan · [Seed startup](https://millionrounds.com/companies)

# Who invested in *ElleThermo*

One round we have observed, with the 3 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Energy

Funding summary Updated 26 Oct 2026

**$2.5M** raised across 1 round since 2024, from 1 source

- **Latest round:** Seed, $2.5M Sept 2024
- **Investors:** 3

See who backed them

## The rounds

- **Sept 2024** Seed **$2.5M** [Mitsubishi UFJ Capital](https://millionrounds.com/fund/mitsubishi-ufj-capital-co-ltd) [Mizuho Capital](https://millionrounds.com/fund/mizuho-capital) [Keio Innovation Initiative](https://millionrounds.com/fund/keio-innovation-initiative-inc) Source recorded

## Everyone who backed them

[Mitsubishi UFJ Capital](https://millionrounds.com/fund/mitsubishi-ufj-capital-co-ltd) VC firm **1** round

[Mizuho Capital](https://millionrounds.com/fund/mizuho-capital) VC firm **1** round

[Keio Innovation Initiative](https://millionrounds.com/fund/keio-innovation-initiative-inc) VC firm **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=ellethermo).

## Also claim to have backed them

These 2 firms list ElleThermo as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.

[Spiral Capital](https://millionrounds.com/fund/spiral-capital) VC firm Per its own site

[MIRAI SOUZOU](https://millionrounds.com/fund/mirai-sozo-investments-corporation) VC firm Per its own site

## Quick answers about ElleThermo

### Who invested in ElleThermo?

ElleThermo's investors include Mitsubishi UFJ Capital, Mizuho Capital and Keio Innovation Initiative.

### How much has ElleThermo raised?

ElleThermo has raised $2.5M across 1 round since 2024.

### When did ElleThermo last raise?

ElleThermo's most recent round was a Seed of $2.5M in Sept 2024.

### What was ElleThermo's biggest round?

Its most recent round, $2.5M in Sept 2024, is also its largest on record.

### Who backed ElleThermo first?

ElleThermo's first round on record, in Sept 2024, was backed by Mitsubishi UFJ Capital, Mizuho Capital and Keio Innovation Initiative.

### What stage is ElleThermo at?

ElleThermo's latest named round is a Seed, in Sept 2024.

### Where is ElleThermo based?

ElleThermo is based in Japan.

## Companies like ElleThermo

In the same sector, and raised in the last eighteen months.

[**Helical Fusion** $43M · Oct 2026](https://millionrounds.com/company/helical-fusion)[**Tensor Energy** $6.7M · Apr 2026](https://millionrounds.com/company/tensor-energy)[**Sharing Energy** $26M · Apr 2026](https://millionrounds.com/company/sharing-energy)[**3DC** $2.4M · Feb 2026](https://millionrounds.com/company/3dc)[**Oceanic Constellations, Inc** $13M · Feb 2026](https://millionrounds.com/company/oceanic-constellations-inc)[**Carbon CryoCapture** $404K · Sept 2025](https://millionrounds.com/company/carbon-cryocapture)

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