# Circular Brain funding: rounds and investors

> Circular Brain has raised $3.5M across 1 round since 2025. Investors include Lorene Urban Mining. Every round with its source.

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

Brazil · [Funded startup](https://millionrounds.com/companies)

# Who invested in *Circular Brain*

One round we have observed, with the one investor 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.

Climate Tech

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Funding summary Updated 5 Nov 2026

**$3.5M** raised across 1 round since 2025, from 1 source

- **Latest round:** Round, $3.5M May 2025
- **Investors:** 1

See who backed them

## The rounds

- **May 2025** Round **$3.5M** [Lorene Urban Mining](https://millionrounds.com/fund/lorene-urban-mining) Reported by LatamList

## Everyone who backed them

[Lorene Urban Mining](https://millionrounds.com/fund/lorene-urban-mining) Investment firm **1** round

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

## Also claim to have backed them

This firm lists Circular Brain 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.

[Barn Investments](https://millionrounds.com/fund/barn) VC firm Per its own site

## Quick answers about Circular Brain

### Who invested in Circular Brain?

Circular Brain's investors include Lorene Urban Mining.

### How much has Circular Brain raised?

Circular Brain has raised $3.5M across 1 round since 2025.

### When did Circular Brain last raise?

Circular Brain's most recent round, $3.5M, was in May 2025.

### What was Circular Brain's biggest round?

Its most recent round, $3.5M in May 2025, is also its largest on record.

### Who backed Circular Brain first?

Circular Brain's first round on record, in May 2025, was backed by Lorene Urban Mining.

### Where is Circular Brain based?

Circular Brain is based in Brazil.

## Companies like Circular Brain

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

[**Mombak** $86M · Sept 2026](https://millionrounds.com/company/mombak)[**Aegea Saneamento** $328M · Jun 2026](https://millionrounds.com/company/aegea-saneamento)[**Scala Data Centers** $804M · Jul 2025](https://millionrounds.com/company/scala-data-centers)[**Atmospheric AI** $20M · Nov 2026](https://millionrounds.com/company/atmospheric-ai)[**altM** $10M · Nov 2026](https://millionrounds.com/company/altm)[**Sortrace** $800K · Nov 2026](https://millionrounds.com/company/sortrace)

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