# Polaron funding: rounds and investors

> Polaron has raised $8.0M across 1 round since 2026. Investors include Speedinvest. Every round with its source.

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

United Kingdom · [Pre-seed startup](https://millionrounds.com/companies)

# Who invested in *Polaron*

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.

Chemicals & Materials

Raised 9 months ago

Funding summary Updated 26 Oct 2026

**$8.0M** raised across 1 round since 2026, from 1 source

- **Latest round:** Pre-seed, $8.0M Feb 2026
- **Investors:** 1

See who backed them

## The rounds

- **Feb 2026** Pre-seed **$8.0M** [Speedinvest](https://millionrounds.com/fund/speedinvest) Source recorded

## Funding filed with regulators

Polaron filed one raise, $6.5M in all. Filings say how much was sold and to how many investors; they never name the investors.

- Nov 2025 **$6.5M** UK share allotment

## Founders and team

From Polaron's own website: 3 on the team.

- **Dr Isaac Squires** CEO
- **Dr Sam Cooper** Chief Scientist
- **Dr Steve Kench** CTO

## Everyone who backed them

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

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

## Also claim to have backed them

This firm lists Polaron 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.

[Avonmore Developments](https://millionrounds.com/fund/avonmore-developments) Family office Per its own site

## Quick answers about Polaron

### Who invested in Polaron?

Polaron's investors include Speedinvest.

### How much has Polaron raised?

Polaron has raised $8.0M across 1 round since 2026.

### When did Polaron last raise?

Polaron's most recent round was a Pre-seed of $8.0M in Feb 2026.

### What was Polaron's biggest round?

Its most recent round, $8.0M in Feb 2026, is also its largest on record.

### Who backed Polaron first?

Polaron's first round on record, in Feb 2026, was backed by Speedinvest.

### What stage is Polaron at?

Polaron's latest named round is a Pre-seed, in Feb 2026.

### Where is Polaron based?

Polaron is based in the United Kingdom.

## Companies like Polaron

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

[**Adaptavate** $15M · Oct 2026](https://millionrounds.com/company/adaptavate)[**Dragonfly Advanced Materials** $2.0M · Sept 2026](https://millionrounds.com/company/dragonfly-advanced-materials)[**Eterna Regeneratives** $4.0M · Sept 2026](https://millionrounds.com/company/eterna-regeneratives)[**iGii** $27M · Sept 2026](https://millionrounds.com/company/igii)[**Nanoloom** $567K · Sept 2026](https://millionrounds.com/company/nanoloom)[**Chemify** $81M · Sept 2026](https://millionrounds.com/company/chemify)

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