# OCEANIUM funding: rounds and investors

> OCEANIUM has raised $19M across 7 rounds since 2021. Investors include Innovate UK. Every round with its source.

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

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

# Who invested in *OCEANIUM*

7 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.

Chemicals & Materials

Funding summary Updated 26 Oct 2026

**$19M** raised across 7 rounds since 2021, from 7 sources

**$2.4M** Round **$441K** Round **$996K** Round **$454K** Round **$510K** Round **$2.7M** Round **$12M** Venture

- **Latest round:** Venture, $12M Apr 2025
- **Step-up i:** 4.4×
- **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.

2022 2023 2024 2025

**$2.4M** Round

**$441K** Round

**$996K** Round

**$454K** Round

**$510K** Round

**$2.7M** Round

**$12M** Venture

- **First round:** Round, $2.4M
- **Biggest round:** $12M
- **Usual gap between rounds:** 4 months

## The rounds

- **Apr 2025** Venture **$12M** *1 new* [Innovate UK](https://millionrounds.com/fund/innovate-uk) Source recorded
- **Sept 2023** Round **$2.7M** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet
- **Jun 2023** Round **$510K** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet
- **Feb 2023** Round **$454K** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet
- **Oct 2021** Round **$996K** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet
- **Aug 2021** Round **$441K** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet
- **Apr 2021** Round **$2.4M** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet

## Founders and team

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

- **Alex Harbinson** Business Development & Ops Director
- **Bethany Robb** Communications & Marketing Manager
- **Silvi Siddhu** Global Strategy & Sales Director

Advisers *Dr. Sybille Buchwald-Werner*

## Everyone who backed them

[Innovate UK](https://millionrounds.com/fund/innovate-uk) VC firm **1** round

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

## Also claim to have backed them

These 2 firms list OCEANIUM as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.

[regeneration.vc](https://millionrounds.com/fund/regeneration-vc) VC firm Per its own site

[SeaAhead](https://millionrounds.com/fund/seaahead) Angel network Per its own site

## Quick answers about OCEANIUM

### Who invested in OCEANIUM?

OCEANIUM's investors include Innovate UK.

### How much has OCEANIUM raised?

OCEANIUM has raised $19M across 7 rounds since 2021.

### When did OCEANIUM last raise?

OCEANIUM's most recent round was a Venture of $12M in Apr 2025.

### What was OCEANIUM's biggest round?

Its most recent round, $12M in Apr 2025, is also its largest on record.

### Who backed OCEANIUM first?

OCEANIUM's first round on record, in Apr 2025, was backed by Innovate UK.

### What stage is OCEANIUM at?

OCEANIUM's latest named round is a Venture, in Apr 2025.

### Where is OCEANIUM based?

OCEANIUM is based in the United Kingdom.

## Companies like OCEANIUM

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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