# Rainforest Builder funding: rounds and investors

> Rainforest Builder has raised $9.1M across 2 rounds since 2022. Every round with its source.

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

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

# Who invested in *Rainforest Builder*

2 rounds we have observed, with the 0 investors named in them. 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

Raised 11 months ago

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Funding summary Updated 15 Nov 2026

**$9.1M** raised across 2 rounds since 2022, from 2 sources

**$2.2M** Round **$6.9M** Round

- **Latest round:** Round, $6.9M Dec 2025
- **Step-up i:** 3.1×
- **Investors:** 0

See who backed them

## The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2023 2024 2025

**$2.2M** Round

**$6.9M** Round

- **First round:** Round, $2.2M
- **Biggest round:** $6.9M
- **Between rounds:** 3.1 years

## The rounds

- **Dec 2025** Round **$6.9M** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet
- **Nov 2022** Round **$2.2M** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet

## Funding filed with regulators

Rainforest Builder filed 2 raises, $9.1M in all. Filings say how much was sold and to how many investors; they never name the investors.

- Dec 2025 **$6.9M** UK share allotment
- Nov 2022 **$2.2M** UK share allotment

## Quick answers about Rainforest Builder

### How much has Rainforest Builder raised?

Rainforest Builder has raised $9.1M across 2 rounds since 2022.

### When did Rainforest Builder last raise?

Rainforest Builder's most recent round, $6.9M, was in Dec 2025.

### What was Rainforest Builder's biggest round?

Its most recent round, $6.9M in Dec 2025, is also its largest on record.

### Where is Rainforest Builder based?

Rainforest Builder is based in the United Kingdom.

## Companies like Rainforest Builder

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

[**Atmospheric AI** $20M · Nov 2026](https://millionrounds.com/company/atmospheric-ai)[**Nuada** $19M · Oct 2026](https://millionrounds.com/company/nuada)[**Concretene** $9.9M · Oct 2026](https://millionrounds.com/company/concretene)[**Adaptavate** $15M · Oct 2026](https://millionrounds.com/company/adaptavate)[**Metris Energy** $7.5M · Sept 2026](https://millionrounds.com/company/metris-energy)[**Isometric** $50M · Sept 2026](https://millionrounds.com/company/isometric)

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