# Semarion funding: rounds and investors

> Semarion has raised $9.3M across 3 rounds since 2022. Investors include Parkwalk and The FSE Group. Every round with its source.

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

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

# Who invested in *Semarion*

3 rounds we have observed, with the 2 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.

Biotech

Raised 8 months ago

Funding summary Updated 26 Oct 2026

**$9.3M** raised across 3 rounds since 2022, from 3 sources

**$2.9M** Seed **$2.6M** Round **$3.8M** Venture

- **Latest round:** Venture, $3.8M Mar 2026
- **Step-up i:** 1.5×
- **Investors:** 2

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 2026

**$2.9M** Seed

**$2.6M** Round

**$3.8M** Venture

- **First round:** Seed, $2.9M
- **Biggest round:** $3.8M
- **Usual gap between rounds:** 3.1 years

## The rounds

- **Mar 2026** Venture **$3.8M** *1 new* *1 returning* [Parkwalk](https://millionrounds.com/fund/parkwalk) [The FSE Group](https://millionrounds.com/fund/the-fse-group) Source recorded
- **Mar 2025** Round **$2.6M** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet
- **Feb 2022** Seed **$2.9M** *1 new* [Parkwalk](https://millionrounds.com/fund/parkwalk) Source recorded

## Funding filed with regulators

Semarion filed 3 raises, $5.4M in all. Filings say how much was sold and to how many investors; they never name the investors.

- Mar 2026 **$586K** UK share allotment
- Mar 2025 **$2.6M** UK share allotment
- Feb 2022 **$2.2M** UK share allotment

## Founders and team

From Semarion's own website: 2 founders, 4 on the team.

**Jeroen Verheyen** Co-Founder & Chief Executive Officer

**Tarun Vemulkar** Co-Founder & Chief Technology Officer

- **Ilaria Sanzari** Manufacturing Operations Lead
- **Paul Wallace** Chair of the Board
- **Russell Cowburn** Non-Executive Director
- **Steve Chambers** Investment Director

## Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

**Seed** 2022 **Round** 2025 **Venture** 2026 [Parkwalk](https://millionrounds.com/fund/parkwalk) [The FSE Group](https://millionrounds.com/fund/the-fse-group)

## Everyone who backed them

[Parkwalk](https://millionrounds.com/fund/parkwalk) VC firm **2** rounds

[The FSE Group](https://millionrounds.com/fund/the-fse-group) VC firm **1** round

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

## Also claim to have backed them

These 2 firms list Semarion 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.

[Martlet Capital](https://millionrounds.com/fund/martlet) VC firm Per its own site

[Oxford Innovation Finance](https://millionrounds.com/fund/oxford-innovation-finance) Angel network Per its own site

## Quick answers about Semarion

### Who invested in Semarion?

Semarion's investors include Parkwalk and The FSE Group.

### How much has Semarion raised?

Semarion has raised $9.3M across 3 rounds since 2022.

### When did Semarion last raise?

Semarion's most recent round was a Venture of $3.8M in Mar 2026.

### What was Semarion's biggest round?

Its most recent round, $3.8M in Mar 2026, is also its largest on record.

### Who backed Semarion first?

Semarion's first round on record, in Feb 2022, was backed by Parkwalk.

### What stage is Semarion at?

Semarion's latest named round is a Venture, in Mar 2026.

### Where is Semarion based?

Semarion is based in the United Kingdom.

## Companies like Semarion

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

[**HydRegen** $12M · Oct 2026](https://millionrounds.com/company/hydregen)[**OMass Therapeutics** $442M · Oct 2026](https://millionrounds.com/company/omass-therapeutics)[**CMR Surgical** $1.1B · Oct 2026](https://millionrounds.com/company/cmr-surgical)[**Living Optics** $61M · Oct 2026](https://millionrounds.com/company/living-optics)[**Bactobio** $18M · Oct 2026](https://millionrounds.com/company/bactobio)[**RHYTHM AI** $23M · Sept 2026](https://millionrounds.com/company/rhythm-ai)

## Find investors like these

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