United Kingdom · 
Who invested in Marshmallow?
Marshmallow's investors include BlackRock, Portage Capital, Tribe Capital, Passion Capital and Portage Ventures, and 2 more on record. Portage Capital led its latest round.
2026
$45MSeries C$90MGrowth
United Kingdom · Growth startup
Who invested in Marshmallow
2 rounds we have observed, with the 7 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.
Valuation: $2.0B, Mar 2026
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Funding summaryUpdated 5 Nov 2026
$135Mraised across 2 rounds since 2025, from 2 sources
$45MSeries C$90MGrowth
- Latest round
- Growth, $90MApr 2025
- Led by
- Portage Capital
- Step-upi
- 2×
- Investors
- 7 (1 led)
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Series C, $45M Apr 2025
- Biggest round
- $90M Growth · Apr 2025
MarshmallowFinance1 / 13Their pitch deckMarshmallow's pitch deck, 13 slidesEach slide read for what it argues, against the decks that raised at the same stage.→The rounds
- Apr 2025
- Apr 2025Series C$45M5 new
Source recorded
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.
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
These 3 firms list Marshmallow 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.
Quick answers about Marshmallow
How much has Marshmallow raised?
Marshmallow has raised $135M across 2 rounds since 2025.
When did Marshmallow last raise?
Marshmallow's most recent round was a Growth of $90M in Apr 2025, led by Portage Capital.
What was Marshmallow's biggest round?
Its most recent round, $90M in Apr 2025, is also its largest on record.
Who backed Marshmallow first?
Marshmallow's first round on record, in Apr 2025, was backed by BlackRock, Tribe Capital and Passion Capital and 2 others.
What stage is Marshmallow at?
Marshmallow's latest named round is a Growth, in Apr 2025.
Where is Marshmallow based?
Marshmallow is based in the United Kingdom.
Who led Marshmallow's rounds?
Portage Capital led the Growth in 2025.
Companies like Marshmallow
In the same sector, and raised in the last eighteen months.
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