"One omission of the report: due to language barriers, it was not able to collect sufficient data to evaluate cities in China, Taiwan, Japan, or South Korea."<p>For China, I think Beijing, Shanghai, Hangzhou, Shenzhen, Guangzhou are big contenders for the top 25.<p>For Taiwan, it's mostly in greater Taipei metro. Similarly, it's mostly in Seoul as 40% of Korea's population lives around capital metro.<p>For Japan, Tokyo is certainly another mega city as a strong contender. But I would be interested to learn more about other tech startup hubs.