How Thalys created one single source for HR Data

About Thalys – a human-scale train enterprise

Thalys connects four European countries – Belgium, France, the Netherlands, and Germany – via high-speed trains. The organisation focuses on the most advanced railroad technologies. Thalys trains are high-tech innovations that can accommodate up to nine distinct signage systems and four types of electrification. Their train drivers and train managers are specially trained and comply with the national regulations.


The reasons why Thalys required an HR solution…

Thalys transformed into a railway company in 2015 from 180 to 700 employees. The company operates in two countries, employs many people, and uses various types of contracts. Because their data was housed on different systems, a complex scenario emerged.

Thalys found that its current HR system no longer met the needs of the HR department. It took too much time and effort to consolidate and manipulate the data to develop legal reports or internal KPIs.

They needed a solution to improve efficiency. However, it had to be a solution that could be integrated with the Workforce Planning tool and third-party Payroll Software. In short, a tool that would reduce administrative costs of data processing and coordinate business processes across borders.

Reason to optimise HR processes
Reason to optimise HR processes

Separate solutions in different countries that ended in a lack of consistency.

Too much time is spent on data processing.



> 750

Project Time
6 months

Why Adessa?

Thalys chose Adessa for this implementation and integration project because of their significant experience in integrating HR solutions. Their local knowledge was also an important factor for Thalys. They have a dynamic team of functional and technical experts to build solid and long-term partnerships.

Target: optimise HR processes

Providing a solution to obtain insight & real-time visibility
of HR data and coordinate HR processes


From a customer operational point of view, I would like to underline that implementing such a system requires a minimum of understanding and knowledge from the future product owner. The training and the accompaniment of the product owner will be an asset for a successful implementation.

For a successful project, it is important to carefully choose a partner. Adessa has a large capacity of experts with good communication skills to train the future production owner. Based on my experience, without solid and patient supervision during implementation, the project will fail and the result will be disappointing.

Thalys - creating one single source of truth

The Result

After the go-live of the project, the company has seen widespread acceptance of the solution by employees and management. There is real-time information and insight into HR data which is easily accessible by different types of employees.

With this cloud solution, the administrative costs and efforts reduced, while the reliability of the data improved. Now the company can easily send the data to other tools, particularly payroll to obtain real-time data. This was not the case before SuccessFactors.

Result implementing employee central
Result implementing employee central
Result implementing employee central

Widespread acceptance of the solution by employees and management.

Greater insight and visibility of real-time data.

Reduced administrative time and costs.

Testimonial Nathalie Schneider - Thalys


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Adessa Group is a pan-European technology & services consultancy covering HR, Payroll, Workforce Management & Experience Management processes. The company was founded in 2005 and as of 2020, part of the SD Worx Group. Adessa strives to improve our customers’ business performance and enable their employees to achieve their personal life and work ambitions through smarter technologies.   You can follow us on LinkedIn by clicking here.