# Optalysys funding: rounds and investors

> Optalysys has raised $69M across 5 rounds since 2022. Investors include Northern Gritstone. Every round with its source.

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

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

# Who invested in *Optalysys*

5 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.

AI

Raised 5 months ago

Funding summary Updated 26 Oct 2026

**$69M** raised across 5 rounds since 2022, from 5 sources

**$6.6M** Round **$30M** Series A **$408K** Series A **$31M** Series A **$337K** Series A

- **Latest round:** Series A, $337K Jun 2026
- **Biggest round:** $31M Series A · Jan 2026
- **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 2026

**$6.6M** Round

**$30M** Series A

**$408K** Series A

**$31M** Series A

**$337K** Series A

- **First round:** Round, $6.6M
- **Biggest round:** $31M
- **Usual gap between rounds:** 17 months

## The rounds

- **Jun 2026** Series A **$337K** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet
- **Jan 2026** Series A **$31M** *1 new* [Northern Gritstone](https://millionrounds.com/fund/northern-gritstone) Source recorded
- **Sept 2023** Series A **$408K** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet
- **Jul 2023** Series A **$30M** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet
- **Feb 2022** Round **$6.6M** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet

## Funding filed with regulators

Optalysys filed 6 raises, $70M in all. Filings say how much was sold and to how many investors; they never name the investors.

- Jun 2026 **$337K** UK share allotment
- Mar 2026 **$1.3M** UK share allotment
- Dec 2025 **$31M** UK share allotment
- Sept 2023 **$408K** UK share allotment
- Jul 2023 **$30M** UK share allotment
- Feb 2022 **$6.6M** UK share allotment

## Founders and team

From Optalysys's own website: 9 on the team.

- **Chris Walker** CEO
- **Robert Todd** CTO
- **Stuart Mellis** CFO
- **Chip Greely** VP & Head of Device Operations
- **Byron Bradley** Director of Software
- **Imon Kundu** Director of Photonics
- **Jaganath Rajendra** Director of Analogue
- **Laura Stanley** Director of Marketing
- **Sonal Sidpara** Director of People

Advisers *Dr. Dimitar Jetchev* *Nigel Smart* *Phil Cheetham* *Ro Cammarota*

## Everyone who backed them

[Northern Gritstone](https://millionrounds.com/fund/northern-gritstone) VC firm **1** round

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

## Also claim to have backed them

These 2 firms list Optalysys 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.

[National Security Strategic Investment Fund (NSSIF)](https://millionrounds.com/fund/national-security-strategic-investment-fund-nssif) Corporate VC Per its own site

[Anglia Capital Group](https://millionrounds.com/fund/anglia-capital-group) Angel network Per its own site

## Quick answers about Optalysys

### Who invested in Optalysys?

Optalysys's investors include Northern Gritstone.

### How much has Optalysys raised?

Optalysys has raised $69M across 5 rounds since 2022.

### When did Optalysys last raise?

Optalysys's most recent round was a Series A of $337K in Jun 2026.

### What was Optalysys's biggest round?

Optalysys's largest round on record is $31M (Series A), in Jan 2026.

### Who backed Optalysys first?

Optalysys's first round on record, in Jan 2026, was backed by Northern Gritstone.

### What stage is Optalysys at?

Optalysys's latest named round is a Series A, in Jun 2026.

### Where is Optalysys based?

Optalysys is based in the United Kingdom.

## Companies like Optalysys

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

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