The Kocaeli Büyükşehir Belediyesi Kağıt Spor Kulübü, aka Kocaeli BB Kağıtspor, is a multi-sports club sponsored by the Metropolitan Municipality of Kocaeli in Turkey. It was founded in 1937 as "İzmit Kağıtspor", a sports club of the state-owned SEKA Cellulose and Paper Works in Izmit, Kocaeli.
Mersin Büyükşehir Belediyesi SK also known simply as Mersin BB is a basketball team based in the city of Mersin in Turkey, currently playing in the Turkish Basketball First League (TBL). It is sponsorship by Mersin Metropolitan Municipality.