The Tetris Company
The Tetris Company, or TTC, currently own and license Tetris rights through Elorg. Henk Rogers and Alexey Pazhitnov established the company in 1996, when the ten year Russian license expired. With the creation of TTC, unlicensed made games felt pressure, since TTC had to protect its trademark rights. Licensed games would start to include TTC's "Authentic Tetris Game" seal.