Our Clients

Unlocking the potential of decentralized technology for every business in every industry.

Our Services


We offer consulting services from blockchain education to business case and technical analysis to jumpstart ideation and explore blockchain opportunities that make sense.


We help businesses of all sectors expand their capabilities by providing custom private or public blockchain end-to-end development solutions.


We offer off-the-shelf blockchain products along with supporting framework to streamline your digital asset workflows and economics flows.

Our strengths


Our R&D Lab gathers a team of blockchain-agnostic engineers and cryptographers, leveraging cutting edge technology to build reliable and scalable solution for our clients.


We have proven track record with large corporation and rising innovative start up on over 8 different industries.

End to end Support

We support our client from Blockchain use case definition and business networks construction to decentralized application integration to legacy systems

Business + Innovation
Building upon research is part of our DNA.

IRT System X joined forces with Xdev back in 2018, which is one of the top eight technological research institutes established by the French Government to support entreprise innovation using emerging technologies.

Our latest success stories

Case Studies

fragmos chain – OTC Derivative Trade & Peer to Peer Banking

Mission of the project: Eliminate trade data mismatches through post trade automation in a Blockchain Platform.
Results: Data are segregated per counterparty, and encrypted using state-of-the-are standards, with strong authentication mechanism.

EDF & Valeo – Vehicule to Blockchain

The business goal of this project is to demonstrate the advantages of vehicle to grid (i.e. V2G) capabilities in the context of collective self-consumption where local participants can trade energy through a decentralized market place.

EDF – P2P Energy market place

The mission of this project is to enable direct energy trading between energy consumers (energy producers/prosumers and end-consumers). We have deployed a private blockchain to enable dynamic trading of local energy without trusted third-party.

GS1 – Synchronization & dynamic optimization of information flows

Introduce digital mechanisms to synchronize logistical flow of information in the supply chain logistics industry. By breaking down data silos, show the potential of economic and environmental optimization.

Automobile Consortium – Connected Car Passport

The objective of this mission is to demonstrate how a blockchain based solution can help collaboration within the automobile ecosystem to provide end-users with a a easy-to-use digital passport that securely tracks and certifies all data relative to the vehicule.

UNBANK – Peer-to-Peer Banking Solution

Unbank is a Peer-to-Peer banking solution allowing users to store and manage multiple currencies – fiat money and cryptocurrencies of various blockchain networks – in a single user-friendly mobile app and make near-instant and free payments within a direct network of retail merchants.


Happy clients

We chose The Blockchain Xdev for the development of a blockchain MVP, which they carried out from start to finish. From identifying the industry's pain points, to showcasing how blockchain could be deployed as a solution for our use case, until the final stage of the application's development.
Iris Taguet Zintl Blockchain Program Manager at Air France-KLM

Our Tech Stack

We are techno-agnostic embracing all technologies that help move businesses forward.

The Management Team

Charles Kremer


Former Blockchain R&D program manager at IRT SystemX.
More than 10 years engineering manager experience Thales, PSA Group.

Maxime Vanmeerbeck

Lead Software Engineer

Former Lead Software developer at Shopbot.

Kei Brousmiche

Lead Blockchain Expert

Former Blockchain R&D project leader at IRT SystemX.

Gina Chiquillo


Currently Blockchain technical coordinator at IRT SystemX.
More than 10 years software lead architect experienced.

Margot Pages

Chief Growth Officer

Graduate in Mathematics & Finance from Ecole Nationale des Ponts et Chaussées, 12 years experience in Finance and Entrepreneurship, with expertise in capital markets, asset management and e-commerce.

Our Partners

Proud to partner with leading businesses & organizations to guarantee regulatory compliance, privacy, security and not to mention innovation.

Join other businesses leading innovation at the forefront

8 Rue Barthelemy Danjou, 92100 Boulogne-Billancourt

Email: contact@theblockchainxdev.com
+ (33) 1 40 07 58 01