United States · Series A startup

Who invested in Double

4 rounds we have observed, with the 8 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.

Financial Services

Raised 11 months ago

Funding summaryUpdated 26 Oct 2026

$19Mraised across 4 rounds since 2021, from 4 sources

$8.5MSeries A$500KPre-seed$3.3MSeed$6.5MSeries A
Latest round
Series A, $6.5MDec 2025
Biggest round
$8.5MSeries A · Oct 2021
Step-upi
2×
Investors
8
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.

2022202320242025
$8.5MSeries A$500KPre-seed$3.3MSeed$6.5MSeries A
First round
Series A, $8.5M
Oct 2021
Biggest round
$8.5M
Series A · Oct 2021
Usual gap between rounds
18 months
the median of 3

The rounds

  1. Dec 2025
    Series A$6.5M2 new1 returning

    Source recorded

  2. May 2024
    Seed$3.3M1 returning

    Source recorded

  3. Apr 2023
    Pre-seed$500K1 new

    Source recorded

  4. Oct 2021
    Series A$8.5M5 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.

Series A2021Pre-seed2023Seed2024Series A2025Y CombinatorIndex VenturesFJ LabsEurazeoDaphniAlbum VCTwenty Two VenturesGutter Capital

Everyone who backed them

Y CombinatorAccelerator3rounds
Index VenturesVC firm1round
FJ LabsVC firm1round
EurazeoPrivate equity1round
DaphniVC firm1round
Album VCVC firm1round
Twenty Two VenturesVC firm1round
Gutter CapitalVC firm1round

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

Quick answers about Double

Who invested in Double?

Double's investors include Y Combinator, Index Ventures, FJ Labs, Eurazeo and Daphni, and 3 more on record.

How much has Double raised?

Double has raised $19M across 4 rounds since 2021.

When did Double last raise?

Double's most recent round was a Series A of $6.5M in Dec 2025.

What was Double's biggest round?

Double's largest round on record is $8.5M (Series A), in Oct 2021.

Who backed Double first?

Double's first round on record, in Oct 2021, was backed by Index Ventures, FJ Labs and Eurazeo and 2 others.

What stage is Double at?

Double's latest named round is a Series A, in Dec 2025.

Where is Double based?

Double is based in the United States.

Companies like Double

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

xPay$1.5M · Oct 2026Kalshi$2.7B · Oct 2026STRIVE$1.3B · Oct 2026CapitalOS$52M · Oct 2026Platform Accounting Group$355M · Oct 2026Ramp$4.5B · Oct 2026

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