The story of Fatman begins in North America where Kari Hein gained knowledge of real estate markets. Kari returned to Finland in the late 1980s and brought ideas for new and innovative tools for managing real estates with him.

The company was founded soon after this (in 1991) when Kari started to fulfill his vision. According to the official explanation the name of the company comes from Facility Technical Management but there are rumors that both Kari’s figure as well as the popular TV series Jake and the Fatman might have impacted the chosen name.

People who worked in the real estate industry in the 1990s might remember Fatman’s first software products such as InfoMaster and NetMaster. These were some of the most advanced maintenance book programs of their time. In addition to software products, Fatman was also offering professional services such as condition assessments and real estate tax consulting.


In 2016 Kari’s son Karl Hein took over the company and started to look for people with competence to take Fatman to the next level as a software company. In late 2016, a new CEO joined the company together with a new head of technology unit.

This launched Fatman’s transition into a pure software company that outsources professional services to its partner network and focuses only on software development.

A modern software company with applications that have the “best before” date far away in the future was created.



Over the past couple of years, Fatman has developed into a 100% software company and established a position as a recognized forerunner in its field. Continuous development of operations and thought leader mindset have been the keys to the long success of the company. In order to secure similar development also in the future, we at Fatman invest one full day every month to improve our processes and operations together with the all employees.

From our office in Espoo, we provide services for people all the way from the Artic Circle to the Indian Ocean.