Sii Poland finally closes legal dispute with former employee 

After nearly four years, the Regional Court in Łódź has finally concluded the case brought by a former employee against Sii Poland. The court’s ruling confirms the company’s position in the key respect: the former employee will not return to the organization, and his appeal was dismissed in full. The judgment also closes a years-long public discussion around Sii’s actions, which had undermined the company’s reputation and the legitimacy of the decisions it made. 

The court’s decision 

The court awarded the former employee compensation due to the manner in which the employment relationship was terminated. At the same time, it did not order the reinstatement of Krystian Kosowski, and his appeal was dismissed in full. 

The full judgment (in Polish) is available for download below, and the rest of the article can be found below the attached document.

From Sii’s perspective, the previously announced return of Krystian Kosowski to the organization would not be possible, also for organizational reasons, as none of Sii’s more than 600 managers has declared readiness to work with him on their team.

This ruling is important for Sii not only from a legal and organizational perspective, but above all in terms of protecting the company’s good name. Over the past few years, the organization has faced a one-sided and unfair narrative built, among others, by Związkowa Alternatywa, Piotr Szumlewicz and individuals publicly involved in the dispute.

In Sii’s view, numerous publications, video materials and social media posts were intended to damage the reputation of the company and its CEO and founder, undermine trust in managers, and put pressure on the organization, its employees, clients and business partners.

The facts, however, show something completely different: despite years of pressure and attempts to undermine Sii’s reputation, the company not only defended its position, but continued to grow, create jobs, pay hundreds of millions of zlotys in taxes in Poland each year, and maintain the trust of its employees.

An important moment for Sii employees 

The final closure of the case shows how far the image of the company built in a one-sided public narrative was from Sii’s everyday reality. Over the past few years, Power People remained ambassadors of the company, defended the organization’s good name and proved every day that Sii’s strength lies in commitment, responsibility and mutual trust. 

This judgment closes almost four years of a very difficult dispute, which from the beginning was accompanied by numerous one-sided publications, media materials, videos and hostile social media posts aimed at Sii. What matters most to us is that the case has been finally closed and that the court did not order the reinstatement of the former employee – comments Sebastian Myszczyński, Chief Legal Officer at Sii Poland.

Our actions, results and the trust of our employees speak for themselves – we have nothing to hide. We openly defended our company, our employees and the principles of responsible cooperation, while continuing to create jobs, support the Polish economy and pay hundreds of millions of zlotys in taxes in Poland every year – says Grégoire Nitot, CEO and founder of Sii Poland.

Parting ways with people who, instead of constructive dialogue, choose an extremely demanding attitude, a toxic impact on the organization and destabilization of team’s work is necessary to protect Sii’s cohesion, high organizational efficiency and the company’s competitiveness. I would like to thank all Power People who defended the Sii’s good name throughout this time and showed that our organization is not defined by media accusations, but by facts, values and the everyday work of thousands of people – adds Grégoire. 

Closing this chapter and further development 

For 20 years, Sii Poland has been developing as a technology company driven by the mission of identifying and promoting the best employees. The organization employs more than 7,500 people, cooperates with clients across many sectors, and builds its position thanks to the expertise and commitment of its teams. In 2026, Sii Poland once again ranked 1st in the Great Place to Work ranking in the large companies category, which further emphasizes that employees are satisfied with the conditions provided by the organization.  

The company emphasizes that the judgment strengthens its credibility as a good employer and business partner that can consistently defend its people, values and reputation.