CoTrainer, operated by Fussballetics GmbH in Cologne, completed a seed financing round of 1 million EUR. The round closed at the end of the first quarter of 2026. kicker ventures participated as lead investor, alongside strategic investors from the sports and digital business sectors including Markan Karajica, Teamgeist Capital, Dr. Sebastian Weil, Timo Skrzypski, Maximilian Arnold, superangels, and Comvest Digital AG. The company said it will use the fresh capital to advance product development, and with new CTO Marco Giesen plans a platform relaunch in summer 2026.