United Kingdom · Series C startup
4 rounds we have observed, with the 16 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.
Raised this month
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Funding summaryUpdated 5 Nov 2026
$737Mraised across 4 rounds since 2018, from 7 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
ETF PartnersLead
Trill ImpactLead
Entrepreneur First
LocalGlobe
Business Growth Fund
Lightrock
Claret Capital Partners
National Security Strategic Investment Fund (NSSIF)
Phoenix CourtReported by ETF Partners and 3 others
Source recorded
Entrepreneur First
Charlie SonghurstReported by FinSMEs
Open Cosmos filed 2 raises, $216M in all. Filings say how much was sold and to how many investors; they never name the investors.
From Open Cosmos's own website: 3 founders.
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Entrepreneur FirstETF PartnersLLLocalGlobeBusiness Growth FundTrill ImpactLCharlie SonghurstLightrock
UK governmentClaret Capital PartnersTaavet HinrikusMissing a round, or an investor who was in one? Tell us.
This firm lists Open Cosmos as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.
Open Cosmos's investors include Entrepreneur First, ETF Partners, LocalGlobe, Business Growth Fund and Trill Impact, and 11 more on record. ETF Partners led its latest round.
Open Cosmos has raised $737M across 4 rounds since 2018.
Open Cosmos's most recent round was a Series C of $334M in Oct 2026, led by ETF Partners.
Open Cosmos's largest round on record is $346M (Growth), in Sept 2026, led by ETF Partners.
Open Cosmos's first round on record, in Apr 2018, was backed by Entrepreneur First, Charlie Songhurst and Taavet Hinrikus and 1 others.
Open Cosmos's latest named round is a Series C, in Oct 2026.
Open Cosmos is based in the United Kingdom.
ETF Partners led the Growth in 2026.
In the same sector, and raised in the last eighteen months.
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