As an AI language model, I can provide information up to September 2021. The following are some of the notable tech IPOs worldwide that took place in 2021 (up to September). Please note that the rankings may change over time based on market fluctuations. Here are ten examples:
1. Robinhood (HOOD): The stock trading platform went public on July 29, 2021.
2. Wise (formerly TransferWise) (WISE): The London-based international money transfer service held its IPO on July 7, 2021.
3. Chinese ride-hailing giant Didi Chuxing (DIDI): The company went public on June 30, 2021, before facing regulatory challenges in China.
4. Coinbase Global (COIN): The popular cryptocurrency exchange made its debut via a direct listing on April 14, 2021.
5. Zomato (ZOMATO.NS): The Indian food delivery platform had its IPO on July 23, 2021.
6. KeepTruckin: The fleet management platform had its IPO on June 17, 2021.
7. UiPath (PATH): The robotic process automation software company went public on April 21, 2021.
8. Marqeta (MQ): The financial technology company, known for its card-issuing platform, had its IPO on June 9, 2021.
9. Kuaishou Technology (1024.HK): The Chinese short-video platform had its IPO on February 5, 2021.
10. JFrog (FROG): The software company specializing in DevOps tools held its IPO on September 16, 2020 (right on the edge of the timeframe).
It’s important to verify the latest information as the IPO landscape can quickly change.