Switzerland · 
Who invested in ProtonMail?
ProtonMail's investors include CRV and FONGIT.
2015
$550KCrowdfunding$2.0MSeedSwitzerland · Seed startup
Who invested in ProtonMail
2 rounds we have observed, with the 2 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.
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Funding summaryUpdated 7 Nov 2026
$2.5Mraised across 2 rounds since 2014, from 2 sources
$550KCrowdfunding$2.0MSeed
- Latest round
- Seed, $2.0MMar 2015
- Step-upi
- 3.6×
- Investors
- 2
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Crowdfunding, $550K Aug 2014
- Biggest round
- $2.0M Seed · Mar 2015
- Between rounds
- 8 months from the last two
The rounds
- Mar 2015
- Aug 2014Crowdfunding$550K
No investor was named in the report.
From a historical funding record
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
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Quick answers about ProtonMail
How much has ProtonMail raised?
ProtonMail has raised $2.5M across 2 rounds since 2014.
When did ProtonMail last raise?
ProtonMail's most recent round was a Seed of $2.0M in Mar 2015.
What was ProtonMail's biggest round?
Its most recent round, $2.0M in Mar 2015, is also its largest on record.
Who backed ProtonMail first?
ProtonMail's first round on record, in Mar 2015, was backed by CRV and FONGIT.
What stage is ProtonMail at?
ProtonMail's latest named round is a Seed, in Mar 2015.
Where is ProtonMail based?
ProtonMail is based in Switzerland.
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