Electronic signatures that stay confidential

We built Subnoto so your contracts stay yours — even we cannot read them.

At a glance

100%

hosted in France

Built and operated in France, around European privacy rules.

0

documents we can read

Confidential computing keeps agreements private during signing — including from us.

5/5

on Capterra

Rated 5/5 by teams who sign with Subnoto.

2024

founded

Started in France to make confidential signing the default.

When you send an agreement through a typical e-signature platform, the vendor can access it. For legal, HR, and security-conscious teams, that is an unacceptable trade-off.

We started Subnoto to end that compromise. Confidential computing keeps your contracts yours: neither Subnoto, nor third parties, nor anyone else can read them while they are being processed.

The product is designed to feel simple on purpose. Send, sign, and track without passwords — and without giving up confidentiality.

Most e-signature tools can read your contracts. We built Subnoto so they can't — including us.

The Subnoto co-founders

Why we started

The problem

Signing usually means sharing

Most e-signature platforms decrypt your document so they can process it. That puts the contents in reach of the vendor, and of anyone who compromises them.

How Subnoto works

Confidential even while you sign

Agreements are processed inside confidential computing enclaves. Subnoto cannot open them — not by policy, by architecture.

How it feels

Built for people who sign every day

Passwordless login, a modern signing flow, hosted in France. Confidentiality should not mean extra steps.

What we promise

Your agreements should be private by default, legally sound, and fast to complete.

Private by default

Confidential computing keeps documents encrypted even while they are being signed — including from Subnoto.

Fast to complete

Passwordless login and a modern signing flow mean your team does not have to choose between security and speed.

Hosted in France

Built around European privacy rules, and made for the people who actually get documents signed every day.

Legally sound

eIDAS-aligned signatures and an audit trail you can keep, without handing the contract itself to the vendor.

The founders

Cyril Leclerc

Cyril Leclerc

Co-founder

Corentin Mors

Corentin Mors

Co-founder

Tina Zhuo

Tina Zhuo

Co-founder