In 1929 the team joined the Pomeranian OZPN and received support from the Railway Military Training and as a result became KPW Unia Tczew.

Unia remained in the league until the 2008–09 season, when the team appeared in the reformed Pomeranian IV liga (fifth level).

In 2012 however to celebrate 90 years since the team's creation, Unia was reformed again for the 2012–13 Polish Cup, playing a total of three games in their run.

In 1929 the team joined the Unia Tczew sports club, and competed for the first time the same year.

The most famous rowers who trained with Unia in their youth include; Barbara Wenta-Wojciechowska, Czesława Kościańska and Mateusz Biskup.