Seba scored 19 Istanbul Football League goals in 70 matches between 1946 and 1953. He also played in 17 Milli Küme Şampiyonası matches and scored 3 goals. He won one Turkish title at the end of his first professional season for Beşiktaş in 1947. He also won 3 Istanbul titles. In 1950, Süleyman Seba joined the Beşiktaş J.K. squad that went to the USA to play some friendly matches. They played against American Soccer League all-stars, some regional all-star teams, and Manchester United. It is rumoured that Manchester United wanted to transfer Seba after the match.