Our vision, values and networks
CALC4XL – Understand costs. Reduce CO₂. Shape the future.
Our vision: a greener, fairer and healthier world.
We believe that business success and environmental responsibility go hand in hand.
With CALC4XL, we bring transparency to product costs and CO₂ emissions and carry out Life Cycle Assessment (LCA) – enabling companies to make informed decisions, use resources more efficiently and take targeted action to reduce emissions.
Our mission: AI first. Costing for everyone.
We make artificial intelligence the driving force behind our continued development.
Our goal is to make cost and CO₂ calculations so simple and accessible that everyone – from procurement to product development – can calculate with confidence, even without extensive costing expertise. To achieve this, we combine AI with relevant data and in-depth specialist knowledge.
Our values: respect, diversity and responsibility.
Appreciation and fairness shape how we work with our employees, customers and partners. Racism, discrimination and xenophobia have no place in our organisation. We stand for transparent, responsible corporate governance that brings together environmental, social and economic goals.
We are driven by a passion for innovation – and a commitment to combining our customers’ long-term success with a sustainable future.
Experience you can trust.
Dr. Andy Witt
Dr. rer. nat. Andy Witt (born 1983) studied computer science engineering at the Technical University of Hamburg. He specialized in applied mathematics and applied physics and subsequently worked as a product manager for a large software manufacturer. In 2013, he went back to the university for research and subsequent PhD.
During his studies and scientific research, Andy Witt designed and developed software modules in the area of product costing (process time calculators, logistics calculators, learning curves, integration of AI and fuzzy logic in costing, etc.). Furthermore, he built up a data content and gave user trainings for software around product costs and cost engineering. As a management consultant, he also advised companies on the implementation of various costing tools and can draw on a broad expertise in applied and scientific software programming, cost engineering, as well as database creation and Big Data analysis.
Andy Witt was also a professor of business informatics at the renowned HSBA (Hamburg School of Business Administration) for many years. There, he taught and conducted research in the fields of programming, artificial intelligence, big data, and sustainable and cost-efficient production.
Wolfgang Sievers
Dipl. Ing. Wolfgang Sievers (1957-2026) studied mechanical engineering after completing an apprenticeship as a toolmaker. After graduating with a degree in production engineering, he worked as a process planner, plant engineer, project manager and in project management for a well-known automobile manufacturer.
In 2007, he took over responsibility for manufacturing product costing and benchmark data at FACTON, a company that is the market leader in creating a software solution for enterprise product costing.
Since 2011, he has helped implement the cost engineering department in two companies and has been a consultant to the manufacturing sector for decades. He is an expert in the toolset of cost engineering: from pure product and tool cost calculation to product teardown, value stream mapping, fixed cost degression, investment calculation and holistic calculation of TCO. With this knowledge, Mr. Sievers is also responsible for the generation of benchmark data for costing.
Mr. Wolfgang Sievers shaped developments in industrial production and the accompanying IT for more than 35 years.
CALC4XL Partner Network
The networks are diverse: On the one hand, there are companies involved in the creation of a software solution for product cost, life cycle assessment (CO2) and tool cost calculations. On the other hand, we have a large user network in various functions, such as purchasing, production, sales and controlling. The third network are the management consultants, who are mainly looking for a simple, easy to understand solution, with which life and transparent calculations can be made at the customer.
In the following a short excerpt:
- moinfinity IT solutions
- Consultancies like Caresoft, IAC, P3, PwC, ...
- Cost analysts and engineers from the electrical, wind, mechanical engineering and automotive industries
- Tool Cost Calculation Schmale
- Cooperation partners like Roche, FACTON, Hansgrohe
- Universities like TU Hamburg, HAW Hamburg, HSBA, University of Edinburgh, DHBW, ...
- Government organizations such as UKAEA
- Business contacts with Olympus, Mercedes-Benz Group, KK Wind Solutions, Faiveley Transport Wabtec and many more.
You have questions e.g. about the system requirements - then browse through our FAQs. Here we have compiled a list of frequently asked questions for you.
