# 1s1 Energy funding: rounds and investors

> 1s1 Energy has raised $1.4M across 1 round since 2024. Investors include City Light Capital and Faber. Every round with its source.

Source: https://millionrounds.com/company/1s1-energy (Millionrounds; every figure on the page links to its filing or article)

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

# Who invested in *1s1 Energy*

One round we have observed, with the 2 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.

Chemicals & Materials

Funding summary Updated 26 Oct 2026

**$1.4M** raised across 1 round since 2024, from 1 source

- **Latest round:** Seed, $1.4M Oct 2024
- **Investors:** 2

See who backed them

## The rounds

- **Oct 2024** Seed **$1.4M** [City Light Capital](https://millionrounds.com/fund/city-light-capital) [Faber](https://millionrounds.com/fund/faber) Source recorded

## Founders and team

From 1s1 Energy's own website: 4 on the team.

- **Nicolas Kusserow** Chief of Staff
- **Helena Takahara** Operations Manager Brazil
- **João Tortolo** Business Associate
- **Marc-Alexander Schwarze** Senior Electrochemical Engineer

## Everyone who backed them

[City Light Capital](https://millionrounds.com/fund/city-light-capital) VC firm **1** round

[Faber](https://millionrounds.com/fund/faber) VC firm **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=1s1-energy).

## Also claim to have backed them

This firm lists 1s1 Energy as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.

[Course Corrected](https://millionrounds.com/fund/course-corrected) VC firm Per its own site

## Quick answers about 1s1 Energy

### Who invested in 1s1 Energy?

1s1 Energy's investors include City Light Capital and Faber.

### How much has 1s1 Energy raised?

1s1 Energy has raised $1.4M across 1 round since 2024.

### When did 1s1 Energy last raise?

1s1 Energy's most recent round was a Seed of $1.4M in Oct 2024.

### What was 1s1 Energy's biggest round?

Its most recent round, $1.4M in Oct 2024, is also its largest on record.

### Who backed 1s1 Energy first?

1s1 Energy's first round on record, in Oct 2024, was backed by City Light Capital and Faber.

### What stage is 1s1 Energy at?

1s1 Energy's latest named round is a Seed, in Oct 2024.

### Where is 1s1 Energy based?

1s1 Energy is based in the United States.

## Companies like 1s1 Energy

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

[**Albert Invent** $20M · Oct 2026](https://millionrounds.com/company/albert-invent)[**Albert** $57M · Oct 2026](https://millionrounds.com/company/albert)[**Azulene Labs** $3.4M · Sept 2026](https://millionrounds.com/company/azulene-labs)[**Critical Materials Group** $10M · Sept 2026](https://millionrounds.com/company/critical-materials-group)[**Rise Reforming** $500K · Sept 2026](https://millionrounds.com/company/rise-reforming)[**Fluxnium** $7.0M · Sept 2026](https://millionrounds.com/company/fluxnium)

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