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.

Raised 5 months ago

Funding summaryUpdated 26 Oct 2026

$69Mraised across 5 rounds since 2022, from 5 sources

$6.6MRound$30MSeries A$408KSeries A$31MSeries A$337KSeries A

Latest round: Series A, $337KJun 2026
Biggest round: $31MSeries 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.

20222023202420252026

$6.6MRound$30MSeries A$408KSeries A$31MSeries A$337KSeries 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$31M1 new
- 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$337KUK share allotment
Mar 2026$1.3MUK share allotment
Dec 2025$31MUK share allotment
Sept 2023$408KUK share allotment
Jul 2023$30MUK share allotment
Feb 2022$6.6MUK share allotment

Founders and team

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

Chris WalkerCEO
Robert ToddCTO
Stuart MellisCFO
Chip GreelyVP & Head of Device Operations
Byron BradleyDirector of Software
Imon KunduDirector of Photonics
Jaganath RajendraDirector of Analogue
Laura StanleyDirector of Marketing
Sonal SidparaDirector of People

AdvisersDr. Dimitar JetchevNigel SmartPhil CheethamRo Cammarota

Everyone who backed them

Northern GritstoneVC firm1round

Missing a round, or an investor who was in one? Tell us.

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.