Sweden · 
Who invested in Flattr?
Flattr's investors include Passion Capital and Federico Pirzio-Biroli.
Sweden · Venture startup
Who invested in Flattr
Funding summaryUpdated 26 Oct 2026
$2.1Mraised across 1 round since 2012, from 1 source
- Latest round
- Venture, $2.1MFeb 2012
- Investors
- 2
The rounds
- Feb 2012
Everyone who backed them
Federico Pirzio-BiroliAngel1round
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
This firm lists Flattr 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.
Quick answers about Flattr
How much has Flattr raised?
Flattr has raised $2.1M across 1 round since 2012.
When did Flattr last raise?
Flattr's most recent round was a Venture of $2.1M in Feb 2012.
What was Flattr's biggest round?
Its most recent round, $2.1M in Feb 2012, is also its largest on record.
Who backed Flattr first?
Flattr's first round on record, in Feb 2012, was backed by Passion Capital and Federico Pirzio-Biroli.
What stage is Flattr at?
Flattr's latest named round is a Venture, in Feb 2012.
Where is Flattr based?
Flattr is based in Sweden.
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