Shanghai and Hangzhou are also fast growing and strong contenders for the next big technology startup hubs.
All of these cities are home to dozens of unicorn companies and many more startups.
If I had to bet, one of these cities will be the next global startup hub in the next five to ten years and maybe even surpass or supplant Silicon Valley.
I don't have a visualization for it today, but I think it'd be interesting to put funding data from Crunchbase, AngelList, or Seed-DB overlaid on a heat map of the world.
Shenzhen for hardware startup
Taipei for cheap engineer
The only "real" startup hubs are the ones where venture capital is available and these would traditionally be the cities in North America, China, Singapore etc.