Pioneer for e-billing and data exchange

Quality assurance, validation and implementation consulting since 2015


As-is analysis

Starting point

A careful GAP analysis identifies the key issues that need to be addressed for successful e-billing implementation.


Implementation support


Each data exchange requires a process description. The design, documentation and mapping definition are essential prerequisites for a smooth implementation.


Quality assurance

Valid result

Mistakes happen during implementation. Comparison of the implemented solution with the conceptual design and testing of the implementation lead to reliable operation.

I support organizations

20+ years experience

I founded part-time in 2015 to prove that even the smallest SMEs can successfully implement e-billing. Thus, the need for quality control with the XML.Valitool quickly arose.

As co-author of EN16931, technical inventor of the ZUGFeRD format and my many years of experience and leadership of national and international committees, I have extensive experience in data exchange

With my experience with EANCOM®, CashEDI, UBL, Cross Industry Invoice, XInvoice, OpenAPI and many other standards I am happy to support projects.

Solution providers who carry out the technical implementation of e-billing between in-house systems (ERP) and external communication appreciate my support through lectures, documentation and project-accompanying quality assurance. Examples of my work include mapping specifications, validation rules, schematron rules, and implementation testing for correctness.

Strategic vision

I would like to use to facilitate the use of e-invoicing standards and data exchange solutions for companies around the world. My vision is to always keep the requirements of small and micro businesses in mind. strives to be an inspiring platform for innovation and collaboration that helps companies, regardless of size, succeed in an increasingly digital business world.

Consulting Portfolio


Consulting on e-invoicing requirements according to EN16931, XInvoice, ZUGFeRD, Factur-X, INVOIC and more.

Data modeling

Optimize your data structures for efficient data exchange and management

Interface design

Conception for example of OpenAPI interfaces considering interoperability and international standards.

Electronic data exchange

Consulting on the introduction of international data exchange standards for seamless communication such as EDIFACT, VDA, EANCOM® and more.

Quality assurance

Ensure error-free implementation of your projects with our quality assurance services and the XML.Valitool.

Industry expertise

Benefit from our experience in the retail, telecommunications, energy, construction machinery, cash logistics and other industries.


” I don’t know anyone who has such a deep “mixed know-how” of e-invoicing standardization / accounting / GoBD and taxes as he does! “


Partners and users

We are a member of

Skills and expertise

Dynamic on the ball

We are always ready to develop new ideas, optimize existing approaches and find innovative solutions. This continuous commitment to innovation enables us to deliver industry-leading results and stay at the forefront of the changing business world.

Quality assurance
Data exchange standards
Industry knowledge
Are you looking for a first class

Contact now

I will bring my know-how and experience to support your company in digitalization

Scroll to Top