In 2010 the city had a balanced budget of €277 million, with one fifth used for investment. Bratislava holds shares in 17 companies directly, including the city's public transport company Dopravný podnik Bratislava, the waste collection and disposal company named OLO (''Odvoz a likvidácia odpadu''), and the water utility. The city also manages municipal organisations such as the city police (''Mestská polícia''), Bratislava City Museum and ZOO Bratislava.