Mailstone
French tech company | Builders Republic
About
Email certification service for businesses — each message and its attachments are fingerprinted, qualified-timestamped under the European eIDAS framework and anchored on a blockchain, giving legally admissible proof of sending and content, notably through an Outlook add-in.
Key facts
- Status
- Active
- Sectors
- Cyber & Security
- Latest stage
- Venture Round
- Founded
- 2019
- Registered office
- Marseille
- Region
- Provence-Alpes-Côte d’Azur
- Tracked rounds
- 4
- Amount raised
- 2.1 M€
Operations
- Venture Round · 2025
- Venture Round · 2024
- Venture Round · 2023
- Seed · 2021
Investors
- Unitel Group