# Green Sea Guard funding: rounds and investors

> Green Sea Guard has raised $257M across 2 rounds since 2015. Investors include Angels Den. Every round with its source.

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

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

# Who invested in *Green Sea Guard*

2 rounds we have observed, with the one investor 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.

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Funding summary Updated 31 Oct 2026

**$257M** raised across 2 rounds since 2015, from 2 sources

**$35K** Round **$257M** Round

- **Latest round:** Round, $257M May 2023
- **Step-up i:** 7331.7×
- **Investors:** 1

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.

2015 2017 2019 2021 2023

**$35K** Round

**$257M** Round

- **First round:** Round, $35K
- **Biggest round:** $257M
- **Between rounds:** 8 years

## The rounds

- **May 2023** Round **$257M** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet
- **May 2015** Round **$35K** *1 new* [Angels Den](https://millionrounds.com/fund/angels-den-funding) From a historical funding record

## Funding filed with regulators

Green Sea Guard filed 2 raises, $257M in all. Filings say how much was sold and to how many investors; they never name the investors.

- Jun 2023 **$105M** UK share allotment
- May 2023 **$151M** UK share allotment

## Everyone who backed them

[Angels Den](https://millionrounds.com/fund/angels-den-funding) Angel network **1** round

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

## Quick answers about Green Sea Guard

### Who invested in Green Sea Guard?

Green Sea Guard's investors include Angels Den.

### How much has Green Sea Guard raised?

Green Sea Guard has raised $257M across 2 rounds since 2015.

### When did Green Sea Guard last raise?

Green Sea Guard's most recent round, $257M, was in May 2023.

### What was Green Sea Guard's biggest round?

Its most recent round, $257M in May 2023, is also its largest on record.

### Who backed Green Sea Guard first?

Green Sea Guard's first round on record, in May 2015, was backed by Angels Den.

### What stage is Green Sea Guard at?

Green Sea Guard's latest named round is an Undisclosed round, in May 2015.

### Where is Green Sea Guard based?

Green Sea Guard is based in the United Kingdom.

## Companies like Green Sea Guard

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

[**Fractile** $1.0B · Oct 2026](https://millionrounds.com/company/fractile)[**Easol** $55M · Oct 2026](https://millionrounds.com/company/easol)[**SAVA** $21M · Oct 2026](https://millionrounds.com/company/sava)[**Circuit Mind** $25M · Oct 2026](https://millionrounds.com/company/circuit-mind)[**Querio** $6.5M · Oct 2026](https://millionrounds.com/company/querio)[**Lette** $6.5M · Oct 2026](https://millionrounds.com/company/lette)

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