Sofia is ranked as Beta- global city by the Globalization and World Cities Research Network. It is the economic hub of Bulgaria and home to most major Bulgarian and international companies operating in the country, as well as the Bulgarian National Bank and the Bulgarian Stock Exchange. The city is ranked 62nd among financial centres worldwide. In 2015, Sofia was ranked 30th out of 300 global cities in terms of combined growth in employment and real gross domestic product (GDP) per capita, the highest one amongst cities in Southeast Europe. The real GDP (PPP) per capita growth at the time was 2.5% and the employment went up by 3.4% to 962,400. In 2015, Forbes listed Sofia as one of the top 10 places in the world to launch a startup business, because of the low corporate tax (10%), the fast internet connection speeds available – one of the fastest in the world, and the presence of several investment funds, including Eleven Startup Accelerator, LAUNCHub and Neveq.