What we do

Ledger enables secure blockchain applications for enterprises, industrials and consumers. We provide endpoint security solutions for PCs, smartphones, servers and IoT devices.

Ledger secure plaform products


Ledger's core technology is a low footprint Operating System built around a secure core and providing all the necessary libraries to run native open source code for blockchain applications.

About us

Founded in 2015, Ledger is a French startup developing a secure platform for blockchain applications. With a unique combination of expertise in embedded OS, hardware security, cryptography and blockchain, the company has successfully deployed a popular hardware wallet for the Bitcoin industry and recently introduced solutions for enterprise and industrial customers. Ledger is headquartered in Paris, and has offices in Vierzon and San Francisco.

Consumer products

Ledger Nano S

Ledger Nano S

The Ledger Nano S is a Bitcoin and Ethereum hardware wallet, featuring a screen for payment validation and architectured around a secure element for maximum protection of your assets.

Ledger Blue

Ledger Blue

The Ledger Blue is a high end signature device, featuring a touch screen and USB/NFC/BLE connectivity for PC and smartphone compatibility. It runs multiple apps such as Bitcoin, Ethereum, FIDO U2F, SSH, GPG and many more. The Blue is the most advanced open source secure device available.

Ledger Nano

Ledger Nano

The Ledger Nano is a small USB hardware wallet, that integrates an EAL5+ certified Secure Element (smartcard) and the Ledger OS. It provides a simple and smart user experience, so that anyone can use Bitcoin with the benefit of maximum security.

Ledger HW.1

Ledger HW.1

The HW.1 is the enterprise version of the Nano, available for multisignature schemes or HSM implementation arrays. With an affordable and durable plastic casing, the HW.1 is the ideal solution for heavy usage and multiple keys distribution.

Enterprise products

Ledger HSM

Ledger Hardware Security Modules (HSM)

Hot wallet security is a critical aspect of all online exchanges and brokers. Ledger HSM is an enterprise solution built in partnership with major vendors enabling a full logical and physical security of cryptographic secrets on servers. Architectured around BOLOS core, secure wallet apps can rely on 2FA oracle channels validating in real time the integrity of any payment requests. Contact us to know more about our solutions.

Industrial products

Ledger IoT

Ledger IoT solutions

Industrial applications may require IoT devices to leverage blockchain capabilities for audit, traceability or M2M payments. Ledger has developped solutions base on TEE (Trusted Execution Environment) or Secure Element integration, enabling secure blockchain usages in a large number of situations.

Core technology

Ledger's core technology is the Blockchain Open Ledger Operating System (BOLOS), a platform enabling native execution of open source code on any kind of secure hardware. BOLOS is a powerful alternative to Java Card, aiming to reconcile Secure Hardware and Open Source.


The Hardware Abstraction Layer (HAL) allows BOLOS to run on any kind of secure hardware. Thanks to the extensive crypto APIs, applications can leverage all types of blockchains (public, private...)


Isolation is natively provided by hardware mechanisms (each application can only access its own memory region, and operates in User mode, interacting with the Operating System running in Supervisor mode) or through a simple virtual CPU engine.


All applications running on BOLOS can be Open Source and do not require any proprietary API. Native code (C) ensures maximum performance and flexibility.

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Eric Larchevêque
Eric Larchevêque

Serial entrepreneur since 1996, Eric founded several companies in Europe. Respected member of the Bitcoin community, he launched La Maison du Bitcoin - a French Bitcoin center, before co-founding Ledger.

Nicolas Bacca
Nicolas Bacca

After 5 years at Oberthur and 10 years developing smartcard OS for his company Ubinity, Nicolas founded BTChip, an open standard secure element based hardware wallet that is now part of Ledger.

Joël Pobeda
Joël Pobeda

Joël is head of product and operations. After 15 years in the retail and distribution business, he co-founded Ledger with the aim to bring the best solutions to consumers.

Thomas France
Thomas France

Thomas is head of the San Francisco offices of Ledger, where he is in charge of developing business operations. Want to partner with us? Ping him any time on Twitter or by email to meet him there.