United States · 
Who invested in Cinder?
Cinder's investors include Y Combinator, Scrum Ventures, Radical Ventures, Accel and Pioneer Fund, and 5 more on record. Radical Ventures led its latest round.
2014201620182020202220242026
?Seed$120KSeed?Venture$41MSeries B
United States · Series B startup
Who invested in Cinder
4 rounds we have observed, with the 10 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 6 months agoY Combinator: W22
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Funding summaryUpdated 5 Nov 2026
$41Mraised across 4 rounds since 2014, from 5 sources
$120KSeed$41MSeries B
- Latest round
- Series B, $41MMay 2026
- Led by
- Radical Ventures
- Step-upi
- 341.7×
- Investors
- 10 (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
- Seed Jan 2014
- Biggest round
- $41M Series B · May 2026
- Usual gap between rounds
- 12 months the median of 3
The rounds
- May 2026Series B$41M7 new1 returning
Radical VenturesLead
Y Combinator
Accel
Pioneer Fund
M12
J2 Ventures
PSP Growth- Neuberger's Outpost Ventures
Reported by AlleyWatch and 1 other
- Dec 2015VentureAmount undisclosed1 new2 returning
From a historical funding record
- Dec 2014
- Jan 2014
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.
Seed2014Seed2014Venture2015Series B2026Y Combinator
Scrum VenturesRadical VenturesLAccelPioneer FundM12
AngelListJ2 VenturesPSP GrowthNeuberger's Outpost Ventures
Y CombinatorScrum VenturesRadical VenturesLAccelPioneer FundM12AngelListJ2 VenturesPSP GrowthNeuberger's Outpost VenturesEveryone who backed them
Neuberger's Outpost VenturesVC firm1round
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
These 2 firms list Cinder 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 Cinder
How much has Cinder raised?
Cinder has raised $41M across 4 rounds since 2014. 2 rounds did not disclose an amount, so the total is a floor.
When did Cinder last raise?
Cinder's most recent round was a Series B of $41M in May 2026, led by Radical Ventures.
What was Cinder's biggest round?
Its most recent round, $41M in May 2026, is also its largest on record.
Who backed Cinder first?
Cinder's first round on record, in Jan 2014, was backed by Scrum Ventures.
What stage is Cinder at?
Cinder's latest named round is a Series B, in May 2026.
Where is Cinder based?
Cinder is based in the United States.
Who led Cinder's rounds?
Radical Ventures led the Series B in 2026.
Companies like Cinder
In the same sector, and raised in the last eighteen months.
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