RegTech · Consulting & Advisory
TheLedger header


RegTech · Consulting & Advisory

Full-stack blockchain application engineering & development.

Year of establishment


Hi we’re TheLedger!

TheLedger is a service company with a strong focus on Blockchain technology (e.g. Hyperledger Fabric, Hyperledger Sawtooth, IOTA, Ethereum, Bigchaindb, and many more). Their main activities include advice, build, co-create, integrate and provide trainings. Together with Bhive, TheLedger built a TrustHive platform. A platform which provides individuals and legal entities with a decentralized platform to manage their identity data. In accordance with GDPR's requirements, customers can determine how, what and until when their identity data is shared with organizations they trust through a user-friendly interface. The platform enables financial institutions and other participating organizations to benefit from identity verification undertaken by other affiliated organizations, with the consent of the customer, which could result in significant cost savings.

Key objective

Delivering enterprise ready blockchain solutions for all.

Slogan / Motto

Blockchain for your business.

Use cases

Blockchain Advisory


Team members

Karsten Flierman Managing Partner & Co-Founder


Since 1998 he has broad experience with IT and Telecommunications as a Country Manager Service, Chief Technology Officer, IT Manager, Program Manager, Delivery Manager, Project Manager, Service Manager, Implementation Manager and Scrum Product Owner, and led (but also have been part of) several agile and multidisciplinary teams. He has a broad knowledge of and experience with leading a department or a team in various phases of a project: research and analysis, design and modeling, realization and development, quality assurance and testing, delivery and deployment, implementation and service and support. He is able to quickly adopt new business strategies, methodologies and techniques, and therefore highly flexible and employable. He has often been involved development, implementation and integration projects. He has a great affinity with innovative (cloud) technology, and also with customer management and with both business and technology partners. He is known as a spontaneous and social personality and a real team player. As a people manager he is experienced in training and coaching, inspiring and motivating, and public speaking on a weekly basis. Since 2008 he is leading a non-profit organization with more than 250 members.

• Blockchain (Ethereum, Solidity, Smart Contracts, HyperLedger Fabric)
• Scripting (JavaScript [NodeJS, Git], VBScript, Perl, Python, Golang)
• Web Development (ASP [.NET], PHP, HTML [CSS], XML)
• Software Development (.NET [C#, Visual Basic], Java, Visual Basic, Delphi, Visual DataFlex)
• Agile (Scrum [of Scrums, SAFe], DevOps)
• Container Technology (APS [Odin/Parallels])
• Databases (SQL Server, Oracle, MySQL, DataFlex
• SOA / Webservices (SOAP, WSDL)
• Design / Modeling (UML, System Architect, Visio)
• BI / ETL (SQL Server Analysis Services, Dundas, Crystal Reports)
• Cloud Technology (Odin/Parallels, Windows Azure, VMware)
• BPM (IBM Lombardi, Progress Savvion)
• ERP (Dynamics NAV, Planning Center Online)
• CRM (Dynamics CRM)
• Contact Centers (Solidus eCare)